This is an old revision of the document!
Now used by more than 750 000 persons all over the world. Used in several books, magazines, observatories, universities, Web sites and blogs. Used in Chandrayaan 1 lunar mission preparation. Recommanded by the European Space Agency (ESA) and the french Ministry of National Education
For Windows 2000/XP/Vista/Seven/Windows 10 PC/Windows Mobile/Linux ©
November 2012 : New "Pro 6.0 / 10 th anniversary" version
During 2002 first version of VMA was released. For its tenth anniversary, we are happy to bring you the new “Pro” 6.0 version, the most complete computerized lunar atlas.
Since december 2009, date of the release of the “Pro 5” version, we were waiting the datas from recent lunar probes US LRO and chinese Chang'é 2 to format them and make them usable with VMA.It's now done and we have also used this long period for adding new modules and features to VMA, but also to actualize and correct its databases. We hope that all that new stuff will make your lunar observations or survays more and more interesting !
And this year it was evident that we have to dedicate this new version to Neil A. Armstrong since his “small step and giant leap” have given a lot of motivation for many of us for practicing amateur astronomy and specially Moon observation.
NEW MODULES :
New "VMA Command Center" :
Because of the increasing modules numbers, VMA starts now with a “Command Center” allowing you to access directly to the various modules and associated documentations.
New "WEBLUN" (c) module :
Christian Legrand has compiled a new database about Web sites dedicated to lunar survey and exploration :
- General sites
- Lunar Atlases
- Sondes lunaires
- Apollo missions
- Lunar observers associations
- Amateurs lunar pictures Web sites
- On line Moon books
- Others specilized lunar sites
Patrick Chevalley has programed the new “WEBLUN” © module allowing a quick access to these lunar Web sites. So, if your computer owns a WiFi access during your outdoors observing sessions, you will be able to consult easily this specialized Web sites while using VMA “at the eyepiece”.
"ATLUN" (c) module upgrade : :
Patrick Chevalley has improved the ATLUN module on three points :
- Improvement of dynamic shadows on terminator using LRO datas
- Visualization of CCD cameras field with personalized CCD chip dimensions
- Visualization of the Moon Globe oriented as seen in altazimutal instruments as Dobsonians
NEW TEXTURES :
The "Lunar Reconnaissance Orbiter / LRO" texture :
The american probe Lunar Reconnaissance Orbiter, presently orbiting the Moon transmits lunar surface images presenting 1 meter resolution. As the entire lunar surface is covered to increasing resolutions, Mark Robinson from Arizona State University and his LRO team release global maps of the Moon. We propose you the corresponding texture with the highest resolution available today. It reaches 100 m resolution and can be compared to the LOPAM yet available but with an opposite lighting angle.
The "Chang'e 2" texture :
The chinese probe Chang'e 2 has mapped the lunar surface lunaire with a 50 m precision. Chinese authorities have released in february 2002 a global high resolution map of the Moon use the probe datas. We have realized on this basis, a new texture reaching a 50 m resolution.
All these textures are completing themselves because lighting conditions change in each texture, showing different details.
The new "historical textures :
Christian Legrand has recovered the best digitized versions of old lunar maps in the public domain. Patrick Chevalley has formated them for the VMA display. You can now compare these pioneers works with the present datas. Sure, these maps show only the Nearside and there are sometimes important shifts in the formations localization. We propose you, in a first time the five following maps :
- Langenus / 1645 (B & W version)
- Hevelius / 1647 (B&W and Color version)
- Cassini / 1676 (B & W version)
- Tobias Mayer / 1775 (B & W version)
NEW DATABASES :
New International Astronomical Databases intégration :
Jennifer Blue and her team have revised the official IAU lunar nomenclature with more precise coordinates ans dimensions using LRO datas. Christian Legrand has also revised VMA databases to integer this new nomenclature and correct original mistakes. The “Information” thumbnail of each lunar formation is now even more richer .
The new "ANONYMOUS CRATERS" database :
The 5th database associated to VMA presents 52 000 craters registered by G. Salamuniccar, S. Loncarid and E. Mazarico. Their important work can be found at : http://www.sciencedirect.com/science/article/pii/S0032063311002789 . Christian Legrand has adapted to the VMA database format this new database. With this new addition, VMA databases contain more than 60 000 lunar formations.
Integration of the "LUN (Lunar Universal Number)" :
As VMA databases contain now formations not named by IAU, Christian Legrand has conceived the “LUN (Lunar Universal Number)” © that permits to “name” in an unique way and very easily each lunar formation more than 10 meters wide. This VMA exclusive field is now integrated in each VMA databases.
NEW SCIENTIFIC OVERLAY :
5 new overlays for studying the lunar surface :
- LRO Surface and roughness (Lunar soil slope and roughness built from Lunar Reconnaissance Orbiter datas)
- LRO Roughness (Lunar soil roughness built from Lunar Reconnaissance Orbiter datas)
- LRO Silicates (Soil silicates composition built from Lunar Reconnaissance Orbiter datas)
- Chang’e Daytime surface temperature (Lunar soil temperature during lunar day built from Chang’e 1 datas)
- Chang’e Nighttime surface temperature (Lunar soil temperature during lunar night built from Chang’e 1 datas)
NEW PICTURES LIBRARIES :
The new "Pic du Midi 1 meter telescope" library :
Christian Legrand has extracted lunar formations pictures from pictures taken by a french team (J.L. Dauvergen, P. Tosi, F. Colas, E. Rousset, T. Legault) withe the 1 meter telescope of the Pic du Midi Observatory. Thes are the best lunar pictures made from the Earth surface. Really amazing. Thanks to the team for the authorization to use their production !
The new "Best of Peach" library :
Damian Peach is one of the best lunar imagers in the world. He has kindly authorized Christian legrand to buid a “Best of Peach” pictures library to help to VMA development. Damian has produced one of the more detailed and numerous pictures of lunar formations. A great thank to him for his help !
These two new pictures libraries provide now about 8 000 pictures available for VMA users.
NEW DOCUMENTATIONS :
Christian Legrand has realized a new specific and illustrated documentation for “WEBLUN” with screens captures showing the new possibilities offered by this module. He has also updated “ATLUN”, “DATLUN”, “PHOTLUN” and “WEBLUN” documentations with the above new features.
NEW DISTRIBUTION :
Because of the very big size of the new UHR textures (several Go with all the modules, databases, overlays, pictures libraries and textures), we have decided to jump to the DVD format for our distribution. It will install automatically all the new Pro 6 version (Command Center / all modules / databases / high resolution textures / overlays and public pictures libraries).
And to celebrate the VMA 10th anniversary, you will also find on the DVD the VMA version 1.0 from 2002 to compare. Enjoy !
The first mean to support our action is to prefer the DVD version than the Web download.
But we had also generous offers from some VMA users that asked us how they could help us for the software improvement. This one is sure a free action of ourselves and we don't ask any financial help for this product which is only the reflect of our astronomical passions : Moon survey for Christian Legrand and astronomical programming for Patrick Chevalley.
We were a little embarassed by these proposals, but we estimated that we can't refuse voluntary donations and finally decided to accept them. If you want to help us, go to the page "How to support our action ?" for more details. So that the benefits of your support come back to you, these funds will be affected, as far as we can do it, to the purchase of astronomical equipment or books usable for the improvement of VMA or for other astronomical new products or actions.
We thank you very much in advance for the voluntary help that you would decide to bring us.
Christian Legrand et Patrick Chevalley
This software, realized by Patrick Chevalley and Christian Legrand can visualize the Moon aspect for every date and hour and pilot computerized telescopes on the Moon surface. It permits also to study lunar formations with unique database of more than 9000 entries and a more than 7000 pictures library compiled by Christian Legrand.
It's conceived to be easily usable “in the field” according to an observing session needs, but also to study “at home” the Moon and its surface. It's interfaced with "Sky charts" Patrick Chevalley's freeware. This set is certainly now one of the most complete astronomy softwares set released.
This software has been conceived according to the needs of Moon observers, but also as a powerful tool for people interested personally or professionally by selenography.
The authors are decided to upgrade periodically the software, databases and pictures library in the following monthes and years. If you think that a function would be useful for all Moon observers, don't hesitate to indicate it us. It could be possible to include it.
It's possible to choose the language used by the software and database. Presently we manage directly only English and French version which are available with the basic package. From this Web site, you can download more translations here .
The authors wish that others passioned amateur astronomers will propose their own translation in their language to make this software available to world wide Moon observers.
This software is the result of a collaboration between Christian Legrand, a passioned lunar observer, and co-author of the guide "Discover the Moon" published in English by Cambridge University Press and also published in French, German and Spanish, with Patrick Chevalley, author of the worlwide known freeware "Cartes du Ciel / Sky Charts".
The authors make him free for amateur astronomers, lunar observers and students who wish to practice selenography. They hope to promote Moon observation and knowledge because our satellite will become one of the next human spatial exploration step.
The “Virtual Moon Atlas” is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
Database information and pictures are copyrighted and can only be used with Virtual Moon Atlas.
This program is entirely written with Lazarus.
Source code is available from SVN at http://sourceforge.net/projects/virtualmoon
Calculations of the ephemerides of the Moon are based on the JPL Ephemeris. DE421 ephemeris is include with the program.
Many calculations are based on the essential ”Astronomical Algorithms by Jean Meeus“.
OpenGL display use GLScene .
“Microsoft”, “Windows” and “Vista” are registered marks of Microsoft Corporation.
“Linux” is a registered mark by Linus Torvalds
Names of “Virtual Moon Atlas”, “Atlun”, “PhotLun”, “DatLun”, “PocketLun”, “WebLun” and “LUN / Lunar Universal Number” are copyrighted by Ch. Legrand
For all question about Virtual Moon Atlas usage please use the user forum.
To report a problem with the software please use the bug tracker page, then check if a similar problem is already described
If you have any questions, suggestions or remarks about the software, you can contact Patrick Chevalley.
If they are about the overlays, the databases or the pictures libraries, please contact Christian Legrand.