XEphem/Site/changes.html

874 lines
28 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<html>
<head>
</head>
<BODY background="/bg.png" TEXT="#000000" LINK="#004400" VLINK="#004400" ALINK="#000000">
<H3>Changes from 4.0.2 to 4.0.3</H3>
(Under development and not yet released.)
<ul>
<li>Updates from the Astronomical Almanac 2020:
<ul>
<li>Plutos long-term orbital elements.
<li>The ∆T table now runs through 2018.
</ul>
</li>
</ul>
<H3>Changes from 4.0.1 to 4.0.2</H3>
Released June 24, 2020.
<ul>
<li>Stop trying to link against `-lXp`, which X Windows no longer offers.
<li>Tell Linux folks to compile against their native Motif libraries.
<li>Remove pre-compiled Linux `libXm.a`: incompatible with modern X Windows.
<li>First release from the GitHub repository.
</ul>
<H3>Changes from 4.0.0 to 4.0.1</H3>
Released February 28, 2020.
<ul>
<li>Tweaked "versionmenu.c" to fix a compiler error.
<li>Final release from the www.clearskyinstitute.com website.
</ul>
<H3>Changes from 3.7.7 to 4.0.0</H3>
Released February 7, 2020.
<ul>
<li>Switched to the MIT License.
</ul>
<H3>Changes from 3.7.6 to 3.7.7</H3>
Released August 9, 2015
<blockquote>
<p>Bugs fixed:
<ul>
<li>Improved earth satellite range rate
<li>Fixed some typos in help file
<li>Updated magnetic declination model for 2015-2020
<li>Update Makefile for OS X.10 Yosemite to look for X11 in /opt/X11
<li>Magnetic declination tooltip was reversed
<li>Update Minor Planet Center donwloading script, mpcorb2edb.pl
<li>INDI was not sending all Switches as required by specification.
<li>Change astorb2edbl.pl to use curl and try both with and without EPSV.
</ul>
<p>New features:
<ul>
<li>Include new simpleINDI demo program.
<li>Add support for UCAC4
</ul>
</blockquote>
<H3>Changes from 3.7.5 to 3.7.6 </H3>
Released January 20, 2013
<blockquote>
<p>New features:
<ul>
<li>Show transit azimuth
<li>Plots now show coordinates under cursor.
<li>Improved Earth night lights file, nearth.gif.
<li>Update Jupiter Great Red Spot default longitude.
<li>Show satellite element age in Index.
<li>Add Curiosity landing coordinates to mars_db
<li>Separate Sky View horizon clipping option
<li>SOHO is back
<li>New daytime earth image with improved geography shading
<li>SkyView -> Favorites offers same controls as map right-click
<li>Telescope GoTo honors horizon map
</ul>
<p>Bugs fixed:
<ul>
<li>Improve Earth sunline in cyl graphic projection near equinox.
<li>Improve error handling downloading asteroid data.
<li>Improve accuracy of Earth satellite transits.
<li>Significantly improve speed of Earth satellite rise and set predictions.
<li>Significantly improve accuracy of Earth satellite transit predictions.
<li>Eliminate Earth satellite Objects table values flashing.
<li>Improve accuracy of Earth satellite ground footprint.
<li>Saving Favorites after downloading new elements now saves new values.
<li>Improved earth satellite height and solver stability.
<li>Improve INDI menu interactions for type ISwitchVectorProperty
<li>Sky view horizon clipping incorrectly in rare cases.
<li>Better isolation of applicable Sky View options in individual planet rendering.
<li>In Moon view: subearth, subsolar and anti-subsolar options moved from Grid to {Pen}Umbra.
<li>Show sun in moonview during solar eclipse
<li>Better handling of proxies and large files in web downloads
<li>Favorites menu updates when db that is also a favorite changes.
<li>Fixed crash if Earth view showing Favorite that is updated from file or download
</ul>
</blockquote>
<H3>Changes from 3.7.4 to 3.7.5 </H3>
Released July 25, 2011
<blockquote>
<p>New features
<ul>
<li>Support UCAC catalog version 3
<li>Sky view shows PA in live report
<li>Favorites may now be edited in-place
<li>Earth view displays great circle distance and bearing
<li>Change Earth view cylindrical projection from cos to linear
<li>Earth Object table reports range rate for solar system objects.
<li>Eyepiece rotation depends on Alt/Az or RA/Dec placement context.
</ul>
<p>Bugs fixed:
<ul>
<li>Change cfa.harvard.edu URLs to minorplanetcenter.org
<li>Improved accuracy for ecliptic coordinates
<li>New coords for ESO sites
<li>Check for fifos in PrivateDir then ShareDir
<li>Accommodate downloading web files containing very long lines.
<li>Solar system right-click info could be stale if it was the only view open.
<li>Better support for Max OS X ppc, i386 and x86_64 architectures
<li>Prevent placing Coordinate Tool Eyepiece before Sky View is up.
<li>Better protection from stale Earth satellite elements.
<li>Better support for HTTP 1.1 for celestrak.com
<li>Delta T updated through 2011
<li>Miranda elements now correct
<li>Sky View updates correctly while on alternate workspace
</ul>
</blockquote>
<H3>Changes from 3.7.3 to 3.7.4 </H3>
Released July 3, 2009
<blockquote>
<p>New Features:
<ul>
<li>Several updates for European sites and time zones.
<li>Code tweaks for 64bit compilers.
<li>Add networking support for STScI GSC 2.3.
<li>Add simple support for FITS BITPIX=-32 (floating point images).
<li>Use cross cursor under magnifying glass.
<li>Add Phoenix to Mars features database.
<li>Updated Delta-T table
</ul>
<p>Bugs fixed:
<ul>
<li>Updated CFA URLs.
<li>Made Sky View automag deeper to accommodate GSC 2.3.
<li>Sky View live report option now saved in preferences.
<li>Fix bug when Sun dip is set above rise/set threshold.
<li>Warn of attempt to write to a read-only INDI property.
<li>Better buffer managment in BDL moon model.
<li>Better guarding of old satellite elements.
<li>Fix problem with rise/set near terminator near poles.
<li>Fix bug in movie loop when there were no images yet.
<li>Better Sky View eyepiece culling.
<li>Fix INDI eventloop that could starve nested deferrals.
</ul>
</blockquote>
<H3>Changes from 3.7.2 to 3.7.3 </H3>
Released March 24, 2008
<blockquote>
<p>New Features:
<ul>
<li>surround Earth satellite name with parentheses if eclipsed.
<li>move "Keep marker centered' to Sky View Telescope menu
</ul>
<p>Bugs fixed:
<ul>
<li>improve handling of catalog errors, eg, when in part of sky with no UCAC
<li>improved Solver tool Min/Max stability
<li>use proper amount of precision when saving TLE as .edb
<li>use geometric elevation for Earth satellite conversion to RA/Dec
<li>fix Earth satellite transit info when up now
<li>fix possible rise/set infinite loop when object just barely rises or is geostationary
<li>arg of peri was listed in Earth Data Index table twice
<li>fclose could be called twice when saving preferences
<li>fix possible crash when updating db or Favorites when Earth Objects are up
<li>fix printed trail time zone (always said UTC even when local)
<li>SKY2000.edb RA PM was not multiplied by cos(Dec)
</ul>
<p>INDI enhancements:
<ul>
<li>improve display of large Light properties
<li>parser missed decoding entity if first char in pcdata
<li>eventloop.c:rmTimer() resized array wrong
<li>fixed memory leak in getINDI.c
<li>getINDI now handles BLOBs
</ul>
<p>Obsolete:
<ul>
<li>outdated AAVSO support removed
</ul>
</blockquote>
<H3>Changes from 3.7.1 to 3.7.2 </H3>
Released November 12, 2006
<blockquote>
<p>New Features:
<ul>
<li>Data Table adds JD, HJD and PA columns.
<li>Earth View adds inertial reference frame option.
<li>Earth View allows picking earth satellite via orbit marker.
<li>Earth View shows altitude and range in satellite right-click data.
<li>Earth View shows satellite position in space.
<li>Earth View can draw orbits on cylindrical projection.
<li>Earth objects table has new column-wide toggles.
<li>Main menu can remember to start RT mode automatically.
<li>Makefiles now support building Mac OS X universal binaries.
<li>Object index search supports using glob patterns.
<li>Observing log adds JD, HJD and Airmass fields.
<li>Observing log replaces Search with List feature.
<li>Observing log search supports using glob patterns.
<li>Preferences can now remember and restore which views were open.
<li>Print adds new option to draw with thicker lines.
<li>Several improvements to XML and INDI tools.
<li>Shared app defaults file, XEphem, may now be in /etc.
<li>Sites list search supports using glob patterns.
<li>Sky View draws simplistic antialiased stars.
<li>Mars, Jupiter, Saturn and Uranus satellite models extended to 2021.
<li>Native binary support for Mac OSX Intel.
</ul>
<p>Bugs fixed:
<ul>
<li>.fts added as default suffix when downloading DSS images.
<li>Data menu was not cutting spect field at 2 chars.
<li>Earth View uses unique names for satellite object listing fields.
<li>Fix logic to detect no natural satellite models.
<li>Main menu now only shows progress meter if using fewer than 1000 steps.
<li>Numbers like 2e-2 were considered negative in some situations.
<li>Sky View RADec grid was inaccurate in AA mode near celestial poles
<li>Sky View compass correct now when showing tilted/rotated FITS image.
<li>Sky View labels N and S ecliptic poles.
<li>Sky View no longer prevents panning below horizon.
<li>Sky View telescope marker turned off when manually point only if also recentering.
<li>Sky View was leaving constellation figure files open.
<li>Solver properly guards XML entity characters when saving functions.
<li>Support ISO 8601 in FITS DATE-OBS field.
<li>Support much longer edb entries when downloading from web.
<li>Updated Delta-T table.
<li>WCS solver window labels CDELT2 as pixels up, not down.
<li>astorb2edb.pl updated for longer object names.
</ul>
<p>INDI enhancements:
<ul>
<li>add IEDeferLoop function for inline waiting.
<li>add IUCrackNumber and IUCrackText utility functions.
<li>change indiserver to use select(2) not threads (10-20% more efficient).
<li>command line tools can inherit socket from parent script to maintain a single session
<li>fix bug in very rapid timeouts.
<li>guarantee getProperties is first command sent to drivers.
<li>improve efficiency of traffic to remote drivers.
<li>indiserver sniffs client devices from all commands, not just getProperties.
<li>library sends doubles with more precision.
<li>merge stderr from drivers into indiserver's log with date stamp.
<li>more robust IUSaveText.
</ul>
<p>Obsolete:
<ul>
<li>Remove old style Seti@Home
</ul>
</blockquote>
<H3>Changes from 3.7 to 3.7.1 </H3>
Released November 19, 2005
<blockquote>
<p>New Features:
<ul>
<li>Add tool to align two or more FITS images and create motion movies.
<li>Add Control-m keyboard shortcut to add any view to the Movie loop.
<li>Upgrade to higher resolution Earth image.
<li>Put user annotations in a scrolled list to accommodate lengthy collections.
<li>Add Moonrise and Moonset to collection of Step size controls.
<li>Image gallery lookups now search against all names of data base objects.
</ul>
<p>Bugs fixed:
<ul>
<li>Fix crashing when deleting all frames of a Movie.
<li>Fix antisolar point in Sky View when changing Equatorial preference.
<li>Fix pen/umbra position in Sky View when changing equinox.
<li>Fix problem when reading some Sky View history files.
<li>Fix large height of Progress meter seen on some systems.
<li>Fix crashing when starting any Animation demo.
<li>Fix mainmenu size jumping on some systems when moon not up.
<li>Fix mainmenu moon/sun/rise/set step bug when near a day without any such.
<li>Fix bug in reference manual describing earth satellite footprint.
<li>Fix crashing when make About window too small.
<li>Fix Sky View compass rose during display of FITS images.
<li>Fix a few entries in xephem_sites
</ul>
</blockquote>
<H3>Changes from 3.6.4 to 3.7 </H3>
Released August 1, 2005
<blockquote>
<p>New Features:
<ul>
<li>Data
<ul>
<li>Includes Hubble GSC 2.2.0.1 catalog, 450 million stars complete to M18.5.
<li>New and updated catalogs: Messier, IC, NGC, COVBS, SKY2000,
HYPERLEDA, Supernova, WDSC, Open clusters, Henry-Draper, Pleiades and
asteroids.
<li>YBS replaced with Sky 2000 to magnitude 6.5.
<li>Can now display Gallery image directly from Data Index.
</ul>
<p></p>
<li>Earth View
<ul>
<li>Display satellite orbits in space.
<li>Zoom in to see better geography, or out to see high orbits.
<li>Quick-set button to set equator rotation.
<li>Display of surface footprint is now optional.
<li>Expanded range mouse panning allows continuous rotation.
</ul>
<p></p>
<li>Sky View
<ul>
<li>Save and restore sets of eyepiece definitions.
<li>Save and restore sets of eyepiece Sky positions.
<li>Constellation figure definitions now stored in editable files.
<li>WCS solver invoked automatically if header has seed but no solution.
<li>Shortcut button to set display aspect ratio to match image.
<li>FITS file blinking via new Movie frame function.
</ul>
<p></p>
<li>User Annotation
<ul>
<li>Anchor locations are now based on the view's world coordinates.
<li>Sets of annotations may be saved and loaded from files.
</ul>
<p></p>
<li>Other
<ul>
<li>Collect any number of View, NAAG or Plot frames into a movie, save as set of PNG files.
<li>Many tweaks for improved INDI support, including display FITS BLOBs.
</ul>
</ul>
<p>Bugs fixed:
<ul>
<li>Negative years in some date formats.
<li>WCS solver could result in RA outside range 0..24 hours.
<li>Setting lat or long would reset elevation.
<li>Highly zoomed FITS images would show half-pixel offset.
<li>FITS images without WCS headers could generate bogus graphic overlays.
<li>Sky View compass rose rotation angle could be wrong near poles.
<li>Persistent labels on Earth trails in Sol System view were incorrect.
<li>Outdated magnetic declination model updated.
</ul>
</blockquote>
<H3>Changes from 3.6.3 to 3.6.4
</H3>
Released February 26, 2005
<blockquote>
<ul>
<li>add Proper Motion columns to Data table
<li>update NAAG also when change horizon offset in Data Setup
<li>Favorites table now displays full .edb definition of each entry
<li>allow adding a new Favorite directly from the dialog
<li>Solver has separate Find Min and Find Max goals
</ul>
</blockquote>
<H3>Changes from 3.6.2 to 3.6.3
</H3>
Released January 8, 2005
<blockquote>
<ul>
<li>All moon views: add boolean fields for casting shadow and transit
<li>Sun view: fix and make a configurable resource the SOHO network address
<li>Sky View: label galactic center
<li>Sky View: show rise/set for trailed objects
<li>Sky View: show position angle for roaming mouse coordinate
<li>Sky View: fix printing rectangular eyepieces
</ul>
</blockquote>
<H3>Changes from 3.6.1 to 3.6.2
</H3>
Released November 28, 2004
<blockquote>
<ul>
<li>add support for linux and osx motif libs in source distro
<li>remove -ffast-math from all Makefiles
<li>add Hide and Toggle to User Annotation tool
<li>add User Annotation window tips
<li>add XE icon to Coordinate Converter window
<li>add XE icon to Earth Objects window
<li>show longitude at += 90 in Earth map
<li>fix sporadic dropped contour segments in Earth map
<li>fix spherical mode printing size in Earth map
<li>add spectral class L designation
<li>fix bug downloading from GSC 2.2 in Dec range -1..0 degs
<li>bump max download count for GSC 2.2
<li>fix eyepieces png in help
<li>remove extra @ before seti@home in help
<li>fix relativistic deflection if objects are nearer than sun
<li>allow for negative Earth satellite es_decay
<li>fix Sky View keyboard pan/zoom did not erase fits display
<li>put Sky View Mag in main popup, not in extra pullright
<li>only remove Internet downloaded asteroid files if fresh
<li>fix sending INDI goto coords to the marker properties
<li>better handling of INDI agent disconnect
<li>fix bug building INDI newTextVector property
<li>honor new*Vector commands seen from other INDI clients
<li>redraw each INDI light vector when remanaged
<li>new INDI getINDIproperty and setINDIproperty tools
</ul>
</blockquote>
<H3>Changes from 3.6 to 3.6.1
</H3>
Released August 13, 2004
<blockquote>
<ul>
<li>improve approach to preventing screen blanking during right-clicks
<li>fix memory problem when closing Trails window
<li>planets should be On in the default Sky View History horizon entries
<li>improve drawing of thin crescents in Sky View
<li>faster Sky View depth sorting
<li>fix oversight preventing support of GSC 2.2 field stars
<li>fix binary orbit update problem
<li>fix Sky View Names toolbar button
<li>fix timezone problems in Trails
<li>improve compass rose accuracy in Sky View
<li>fix persistent label in Solar System view
<li>show mag+spectral class for Binary companion too in Sky View's More Info
<li>show size for planets too in Sky View's More Info
<li>eliminate use of tmpnam() for security reasons
<li>INDI tolerates other clients coming and going
<li>new or improved catalogs: asteroids, COVBS, CPIRSS, WDSC, aavso,
binary_calib, constant, loneos, sstar_calib
</ul>
</blockquote>
<H3>Changes from 3.5.2 to 3.6
</H3>
Released June 6, 2004
<blockquote>
<p>New Features:
<ul>
<li>Gallery
<ul>
<li>Gallery of over 300 color images, fully cross-linked with Sky View.
</ul>
<li>Sun
<ul>
<li>New Sun view downloads and saves live images from SOHO.
</ul>
<li>Moon
<ul>
<li>Lunar features can be loaded directly into More Info dialog.
<li>Fully integrated with Lunar Orbiter IV images, with and without
annotation.
<li>Searchable list of Lunar features.
</ul>
<li>Earth
<ul>
<li>Use shaded relief maps and nightside light maps.
<li>Can display any number of simultaneous satellites.
</ul>
<li>Mars
<ul>
<li>Now uses a shaded relief map from Mars Global Surveyor.
<li>Seeing simulation can now be controlled to 1/10 arc second.
</ul>
<li>Saturn
<ul>
<li>Now uses real images.</li>
</ul>
<li>Sky View
<ul>
<li>Keyboard shortcuts for positioning and zooming.
<li>Constellation figures as defined by H. A. Rey.
<li>Orienting compass roses.
<li>Milky Way boundary.
<li>Rotatable eyepieces.
<li>Multiple horizon profiles and interactive editing.
<li>Field stars have their own labeling controls.
<li>Natural satellites drawn along with their parent planets.
<li>Planets drawn with proper phases.
<li>Displays galactic coordinates.
<li>More annotation point on principle coordinate planes.
<li>Accurate colors for all stellar spectral classes.
<li>Binary system orbits.
</ul>
<li>Other views
<ul>
<li>New annotation facility to overlay text and lines on any view.
<li>All planet views now show moon shadows on planet.
<li>Solar System has keyboard shortcuts for rotation, zooming and
stereo.
</ul>
<li>Tools
<ul>
<li>New Observer's log book.
<li>Main window now displays local magnetic declination.
<li>Printing now supports A4 paper sizes.
<li>Trails can now extend Before as well as After the starting time.
<li>Plot and List now have Undo controls.
<li>Plot, List and Solver can now save and restore configurations.
<li>Telescope control now supports <a target="newwin"
href="http://www.clearskyinstitute.com/INDI/INDI.pdf">INDI</a>, a
highly flexible XML
protocol.
<li>More data options and crisper graphs in AAVSO plot tool.
<li>Close tool can now omit planet's own moons.
<li>Coordinate Converter supports arbitrary equinox, can directly
place Eyepieces.
</ul>
<li>GUI
<ul>
<li>Date and Time triad entry formats simpler yet more flexible.
<li>New Splash screen for instant feedback when launched.
<li>Help now written in html and triggers your favorite browser.
<li>Most unwieldy File Selection Boxes replaced by smart file popups.
<li>One-click Web catalog downloads automatically loaded into memory,
as well as saved as a file.
</ul>
<li>Data management
<ul>
<li>New general purpose Favorites facility completely replaces ObjXYZ.
<li>.edb format extended to capture proper motion.
<li>.edb format extended to capture valid date ranges for orbital
elements.
<li>.edb extended to capture multiple names per object.
<li>.edb extended to capture binary system orbits.
<li>Add support for USNO CCD Astrographic Catalog as field stars.
<li>Data Index now displays .edb format.
<li>Data Index can now partition objects into basic categories.
<li>Data View contents can be sent to X11 selection buffer.
<li>Field stars can now populate up to 30&deg; FOV to support 35mm
photography.
<li>Save Preferences can now automatically save Minor resources as
well.
<li>Better Data menu organization.
</ul>
</ul>
<p>Bug Fixes:
<ul>
<li>Printing has improved Adobe compliance and
is immune to locale.
<li>Improved handling of scalable fonts, include fixing a memory leak.
<li>Improved printing in color, and changed Grey to genuine Black.
<li>Fixed Length-of-Night if dusk or dawn does not occur.
<li>Fixed Length-of-Night and NAAG when dawn or dusk cross midnight.
<li>Main window calendar pulldown menu could clip some month names.
<li>Mars moon view can finally print.
<li>Fix NAAG for "arctic" dusk and dawn.
<li>Fix NAAG for case of no rise today but rise tomorrow; ditto for set.
<li>Fix NAAG for earth satellite when current time is on right half-day.
<li>Num Lock key no longer required to be off.
<li>Sky View 1:1 and 2:1 shortcuts no longer fail in certain situations.
<li>Sky View grid labeling improved.
<li>Sky View better at not clipping large objects until fully off
screen, not just their center.
<li>Sky View toolbuttons for constellations, planes and labeling
improved.
<li>Sky View is better at avoiding overlapping labels.
<li>Improved stability in Solver tool seeking periodic extrema.
<li>Fixed problem with mag glass over image without WCS headers.
</ul>
</blockquote>
<H3>Changes from 3.5.1 to 3.5.2
</H3>
Released Jan 8, 2002
<blockquote>
<p>
New Features:
<p>
<ul>
<li>add support for Uranometria 2000 sky atlas.
<li>add support for all three atlases in Data Table and Sky View listing.
<li>add "Auto list" so Close-pairs tool can print while looping.
<li>add GHA column to Data Table.
<li>add Spectral class column to Data Table and Sky View listing.
<li>add ability to store preferred position for more dialogs.
<li>add support for reading TLE-format satellite files directly.
<li>add Print option to Jupiter, Saturn and Uranus views.
<li>add support for 8-bit FITS format.
<li>add major upgrade to star finder and WCS solver.
<li>add image X,Y coords to Sky View corner info, when displaying image
</ul>
<p>
Bug Fixes:
<p>
<ul>
<li>fix a communication problem with LX200.
<li>fix minor problem with Earth view gray-scale printing.
<li>fix font problems occuring on some systems.
<li>fix crashing in Jup/Sat/Uranus seen with some window managers.
<li>fix saving Site preference when multiple abbreviated names match.
<li>fix rare crash when saving preferences.
<li>fix some incorrect XmForm attachments.
<li>fix crash if enter 0 eyepiece focal length.
<li>fix rare crash when refracting far below horizon.
</ul>
</blockquote>
<H3>Changes from 3.5 to 3.5.1
</H3>
Released Nov 9, 2001
<ul>
<p><li>Image analysis:
<ul>
<li>fix ROI would not draw if no or bad wcs
<li>fix updating scales correctly if find a wcs solution
</ul>
<p><li>Sky View:
<ul>
<li>fix ROI Toggle button so it can be a saved resource
<li>fix check for center when window size is odd and flipped
<li>fix bomb when close if wcs had never been opened
</ul>
<p><li>Misc:
<ul>
<li>fix support for ~ in ShareDir
</ul>
</ul>
<p>
<H3>Changes from 3.4 to 3.5
</H3>
Released Oct 13, 2001
<ul>
<p><li>Cross-Platform:
<ul>
<li>Available for MS Win98/2000, MacOS X and all UNIX-like systems.
</ul>
<p><li>Image analysis:
<ul>
<li>Pattern match stars in an image against GSC to find RA/Dec WCS header.
<li>2D Guassian fit to star profiles for sub-pixel position accuracy.
<li>One-click relative and absolute aperture photometry.
<li>Pixel stats for entire image, region of interest or pixels under glass.
<li>Multiple settings for magnifying glass size and power.
<li>Unique "Monument" mode displays stars in pseudo-3D.
<li>Interactive cross-section slices.
<li>Multilevel crop and zoom stack.
</ul>
<p><li>Sky View:
<ul>
<li>Images resize to fit window (not the other way around as in 3.4).
<li>Toolbar down right side to control new imaging functions.
<li>Very simple interface for other programs to automatically display images.
<li>Popup date/time honors Preference time zone.
<li>Toolbar buttons now maintain current set of options thru off/on cycle.
</ul>
<p><li>LX200 Telescope control:
<ul>
<li>Fully integrated into XEphem GUI.
<li>Smoother telescope marker motion.
</ul>
<p><li>Data:
<ul>
<li>Easy GUI to download MPC and Lowell asteroid element sets.
<li>Easy GUI to download CBAT comet elements.
<li>Easy GUI to download Earth satellite element sets.
<li>Improved engine for near-parabolic comet elements.
<li>Improved magnitudes for all planets.
</ul>
<p><li>Eyepieces:
<ul>
<li>Define and Save your favorite user-defined sizes and styles.
<li>Handy calculator to solve common optical formulae.
<li>Delete eyepieces individually.
</ul>
<p><li>Main window:
<ul>
<li>One click to automatically keep XEphem time in sync with computer.
<li>All Help text is now searchable, and keeps reusing one window.
<li>Handy Sun-up and Moon-phase icons.
<li>New bona fide Night Mode.
</ul>
<p><li>Night at a Glance:
<ul>
<li>Shows all satellite passes at once for a given day.
<li>Can click on graph to set time.
<li>New optional easier-to-read one-color scheme.
</ul>
<p><li>Coordinates:
<ul>
<li>New Spreadsheet to convert among equatorial/horizon/ecliptic/galactic.
</ul>
<p><li>Mars:
<ul>
<li>Greatly expanded set of Albedo features.
</ul>
<p><li>Networking:
<ul>
<li>Support for Authentication when going through proxies.
</ul>
</ul>
<p>
<H3>Changes from 3.2.3 to 3.4
</H3>
Released Dec 4, 2000
<ul>
<p> <li>Sky View:
<ul>
<li>Add Toolbars, including new Zoom in/back stack.
<li>Add all new History facility.
<li>Show {pen}umbra with Moon.
<li>Add direct eyepiece option for Telrad.
<li>Show delta coords when dragging zoom box.
<li>Add cylindrical projection.
<li>Greatly expanded Listing and Sorting.
<li>Completely automatic Field Star loading.
<li>Can now download DSS 2 blue and red images.
<li>Greatly speed up sky FITS image contrast control.
<li>Add shortcuts for common positions and aspect ratios.
<li>Add grid labels.
</ul>
<p><li>Data management:
<ul>
<li>Load/Delete by catalog.
<li>New unified format for PPM, Hipparcos and Tycho-2 catalogs.
</ul>
<p><li>Data Table:
<ul>
<li>Add Ecliptic coordinates.
<li>Improved airmass formula near horizon.
</ul>
<p><li>Jupiter View:
<ul>
<li>Morphs a real image.
</ul>
<p><li>Mars View:
<ul>
<li>2x better resolution image.
<li>Magnifying glass.
<li>Expanded features data base.
</ul>
<p><li>Moon View:
<ul>
<li>Add persistant labels.
<li>Add more spacecraft to database.
<li>Fix Moon {pen}umbra rotation.
</ul>
<p><li>Main window:
<ul>
<li>Most windows can now be stacked over or beneath the Main window.
<li>Can now change most colors and fonts on the fly.
<li>Can now Save just about every setting to disk.
<li>Can now step time Forward or Reverse.
<li>Fixed calendar NM and FM when outside current month.
<li>Improved Delta T model
<li>Improved Site selection mechanism.
<li>Simpler control over DST and Delta T.
</ul>
<p><li>Earth View:
<ul>
<li>Direct Internet update facilty for earth satellites.
<li>Can now display 3 objects simultaneously.
<li>Orbit propagator now based on NORAD SGP4/SDP4.
</ul>
<p><li>Brand new features:
<ul>
<li>Support for SETI@Home.
<li>New Night-at-a-Glance graphic.
<li>Direct Internet interface to AAVSO light curves.
<li>Includes control process for Meade LX200.
</ul>
</ul>
</body>
</html>