Difference between revisions of "Messier A"
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| − | Lat: 2.02°S, Long: 46.95°E, Diam: 10.73 km, Depth: 2.24 km, [http://the-moon. | + | Lat: 2.02°S, Long: 46.95°E, Diam: 10.73 km, Depth: 2.24 km, [http://the-moon.us/wiki/R%C3%BCkl%2048 Rükl 48], [http://the-moon.us/wiki/Stratigraphy Copernican]<br /> |
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<div id="toc"> | <div id="toc"> | ||
| − | + | [http://www.lpod.org/coppermine/albums/userpics/Messier-A_LO-IV-060H_LTVT.JPG [[Image:Normal_Messier-A_LO-IV-060H_LTVT.JPG|external image normal_Messier-A_LO-IV-060H_LTVT.JPG]]]<br /> ''[http://lpod.org/coppermine/displayimage.php?pos=-2880 LO-IV-060H]'' (Matching LO view of [http://lpod.org/coppermine/displayimage.php?pos=-2881 Messier]) The namesake crater [http://the-moon.us/wiki/Messier Messier] lies just out of this field to the right (east).<br /> <br /> | |
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==Images== | ==Images== | ||
[http://www.lpod.org/coppermine/thumbnails.php?album=search&type=full&search=Messier%20A LPOD Photo Gallery] [http://www.lpi.usra.edu/resources/lunar_orbiter/bin/srch_nam.shtml?Messier%20A%7C0 Lunar Orbiter Images] [http://www.lpi.usra.edu/resources/apollo/search/feature/?feature=Messier%20A Apollo Images] [http://apollo.sese.asu.edu/LIW/20081028.html ASU Apollo Image Archive]<br /> | [http://www.lpod.org/coppermine/thumbnails.php?album=search&type=full&search=Messier%20A LPOD Photo Gallery] [http://www.lpi.usra.edu/resources/lunar_orbiter/bin/srch_nam.shtml?Messier%20A%7C0 Lunar Orbiter Images] [http://www.lpi.usra.edu/resources/apollo/search/feature/?feature=Messier%20A Apollo Images] [http://apollo.sese.asu.edu/LIW/20081028.html ASU Apollo Image Archive]<br /> | ||
| − | * [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?5041 Frame 5041], made by Lunar Orbiter 5, shows a westward oblique view of both [http://the-moon. | + | * [http://www.lpi.usra.edu/resources/lunarorbiter/frame/?5041 Frame 5041], made by Lunar Orbiter 5, shows a westward oblique view of both [http://the-moon.us/wiki/Messier Messier] and '''Messier A'''. Note the bright retro-reflection ("''Heiligenschein''") near the horizon. |
* [http://www.lpi.usra.edu/resources/apollo/frame/?AS10-35-5205 AS10-35-5205], made through one of the small windows of Apollo 10's CM ''Charlie Brown'', shows the '''Messier'''-twins and one of LM ''Snoopy'''s four nozzle clusters (bottom right corner). | * [http://www.lpi.usra.edu/resources/apollo/frame/?AS10-35-5205 AS10-35-5205], made through one of the small windows of Apollo 10's CM ''Charlie Brown'', shows the '''Messier'''-twins and one of LM ''Snoopy'''s four nozzle clusters (bottom right corner). | ||
* [http://www.lpi.usra.edu/resources/apollo/frame/?AS11-44-6616 AS11-44-6616] is one of Apollo 11's un-labeled orbital ''Hasselblad'' photographs which show both craters '''Messier''' and '''Messier A''' near the frame's lower right corner. | * [http://www.lpi.usra.edu/resources/apollo/frame/?AS11-44-6616 AS11-44-6616] is one of Apollo 11's un-labeled orbital ''Hasselblad'' photographs which show both craters '''Messier''' and '''Messier A''' near the frame's lower right corner. | ||
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<br /> | <br /> | ||
==Maps== | ==Maps== | ||
| − | ''([http://the-moon. | + | ''([http://the-moon.us/wiki/LAC%20zone LAC zone] 79B2)'' [http://www.lpi.usra.edu/resources/mapcatalog/LAC/lac79/ LAC map] [http://www.lpi.usra.edu/resources/mapcatalog/usgs/I714/ Geologic map] [http://www.lpi.usra.edu/resources/mapcatalog/AIC/AIC79B/ AIC map] [http://www.lpi.usra.edu/resources/mapcatalog/LTO/lto79b2_1/ LTO map]<br /> <br /> |
==Description== | ==Description== | ||
<br /> | <br /> | ||
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* IAU page: [http://planetarynames.wr.usgs.gov/Feature/11385 Messier A] | * IAU page: [http://planetarynames.wr.usgs.gov/Feature/11385 Messier A] | ||
| − | * Depth data from [http://the-moon. | + | * Depth data from [http://the-moon.us/wiki/Kurt%20Fisher%20Crater%20Depths Kurt Fisher database] |
** Pike, 1976: 2.24 km | ** Pike, 1976: 2.24 km | ||
| − | * Included on the [http://the-moon. | + | * Included on the [http://the-moon.us/wiki/ALPO%20list%20of%20banded%20craters ALPO list of banded craters] |
<br /> | <br /> | ||
==Nomenclature== | ==Nomenclature== | ||
| − | * The present IAU name ('''Messier A''') is derived from that of the nearby crater ([http://the-moon. | + | * The present IAU name ('''Messier A''') is derived from that of the nearby crater ([http://the-moon.us/wiki/Messier Messier]). |
| − | * According to Mary Blagg's ''[http://the-moon. | + | * According to Mary Blagg's ''[http://the-moon.us/wiki/Collated%20List Collated List]'' of 1913, this crater (catalog entry 4255) was known to [http://the-moon.us/wiki/Beer%20and%20M%C3%A4dler Beer and Mädler], and to [http://the-moon.us/wiki/Neison%2C%201876 Neison], as '''Messier A'''. [http://the-moon.us/wiki/Schmidt Schmidt] called it '''Messier East''' (see the note on [http://the-moon.us/wiki/IAU%20directions IAU directions]) or, occasionally, '''Messier A'''. |
| − | * In the 1928 [http://the-moon. | + | * In the 1928 [http://the-moon.us/wiki/IAU%20Transactions IAU Transactions] it is [http://books.google.com/books?id=5ms3AAAAIAAJ&pg=PA118#v=onepage&q&f=false reported] that the Lunar Commission considered adopting Krieger's suggestion of naming '''[http://the-moon.us/wiki/Hipparchus Hipparchus] G''' (Catalog Number 3609, near Catalog Number 3607 for which Krieger suggested [http://the-moon.us/wiki/Pickering E. Pickering]) '''W. Pickering''' after Prof. [http://en.wikipedia.org/wiki/William_Henry_Pickering William H. Pickering] (1858-1938), but that Prof. Pickering objected, saying that if a crater was to be named after him, he preferred it to be one "in which he is personally interested and on which he had worked." |
| − | * Following his wish, in the original [http://the-moon. | + | * Following his wish, in the original [http://the-moon.us/wiki/IAU%20nomenclature IAU nomenclature] of [http://the-moon.us/wiki/Blagg%20and%20M%C3%BCller Blagg and Müller] (1935) the name for the present catalog entry was changed to '''W. H. Pickering''', honoring a living American astronomer and member of the Lunar Nomenclature Commission. |
| − | * In [http://the-moon. | + | * In [http://the-moon.us/wiki/PLA%20Table%20III Table III] of the first volume of the [http://the-moon.us/wiki/LPL LPL]'s ''[http://the-moon.us/wiki/Photographic%20Lunar%20Atlas Photographic Lunar Atlas]'' (approved by the IAU in [http://the-moon.us/wiki/IAU%20Transactions%20XIB 1961]), [http://the-moon.us/wiki/Gerard%20Kuiper Gerard Kuiper] recommeded deleting the "H." changing the official name to '''W. Pickering'''. |
| − | * By the time they got to the ''[http://the-moon. | + | * By the time they got to the ''[http://the-moon.us/wiki/Rectified%20Lunar%20Atlas Rectified Lunar Atlas]'' (approved by the IAU in [http://the-moon.us/wiki/IAU%20Transactions%20XIIB 1964]), the [http://the-moon.us/wiki/LPL LPL], for reasons explained in a [http://the-moon.us/wiki/IAU%20XII%20News%20Report news report] about that IAU meeting, recommended reverting the name to '''Messier A''' with W. H. Pickering's commemoration being combined with that of E. C. Pickering in the unrelated crater formerly known as [http://the-moon.us/wiki/Pickering E. Pickering]. |
* Since the deletion of '''W. Pickering''' in 1964, '''Messier A''' has been the official IAU name for this crater. | * Since the deletion of '''W. Pickering''' in 1964, '''Messier A''' has been the official IAU name for this crater. | ||
<br /> | <br /> | ||
==LPOD Articles== | ==LPOD Articles== | ||
| − | [http:// | + | [http://www2.lpod.org/wiki/April_10,_2007 A Comet and a Butterfly]<br /> [http://www2.lpod.org/wiki/June_5,_2007 Stunning]<br /> [http://www2.lpod.org/wiki/May_20,_2004 A Tunnel Thru the Moon]<br /> [http://www2.lpod.org/wiki/October_11,_2004 Fertility Central]<br /> [http://lpod.wikispaces.com/June%2012%2C%202009 Butterfly Wings & Railway Tracks]<br /> <br /> |
==APOD Articles== | ==APOD Articles== | ||
[https://apod.nasa.gov/apod/ap171202.html Messier craters in Stereo] (Red-Cyanblue anaglyph of orbital Apollo 11 photograph, by Patrick Vantuyne).<br /> <br /> | [https://apod.nasa.gov/apod/ap171202.html Messier craters in Stereo] (Red-Cyanblue anaglyph of orbital Apollo 11 photograph, by Patrick Vantuyne).<br /> <br /> | ||
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* Wood, C.A. [http://www.skyandtelescope.com/observing/objects/moon/3304151.html Messier on the Moon]. S&T Online article. | * Wood, C.A. [http://www.skyandtelescope.com/observing/objects/moon/3304151.html Messier on the Moon]. S&T Online article. | ||
| − | * Hill, Harold. ''[http://the-moon. | + | * Hill, Harold. ''[http://the-moon.us/wiki/A%20Portfolio%20of%20Lunar%20Drawings A Portfolio of Lunar Drawings]'', pages 22, 23 (the evening terminator from '''Messier A''' to [http://the-moon.us/wiki/Taruntius Taruntius]), and pages 210-214 (the Messier twins). |
* About W.H.Pickering himself (and his observations of the moon): ''EPIC MOON; a History of Lunar Exploration in the age of the Telescope'' (W.P.Sheehan/ T.A.Dobbins). | * About W.H.Pickering himself (and his observations of the moon): ''EPIC MOON; a History of Lunar Exploration in the age of the Telescope'' (W.P.Sheehan/ T.A.Dobbins). | ||
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Latest revision as of 20:44, 15 April 2018
Contents
Messier A
(current IAU-approved name; formerly W. Pickering and before that W.H. Pickering)
|
Lat: 2.02°S, Long: 46.95°E, Diam: 10.73 km, Depth: 2.24 km, Rükl 48, Copernican |
LO-IV-060H (Matching LO view of Messier) The namesake crater Messier lies just out of this field to the right (east).
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images ASU Apollo Image Archive
- Frame 5041, made by Lunar Orbiter 5, shows a westward oblique view of both Messier and Messier A. Note the bright retro-reflection ("Heiligenschein") near the horizon.
- AS10-35-5205, made through one of the small windows of Apollo 10's CM Charlie Brown, shows the Messier'-twins and one of LM Snoopys four nozzle clusters (bottom right corner).
- AS11-44-6616 is one of Apollo 11's un-labeled orbital Hasselblad photographs which show both craters Messier and Messier A near the frame's lower right corner.
- AS16-122-19535 is one of seven photographs which show the rotation of the Ascent Stage of Apollo 16's LM Orion during Stations-Keeping (before docking). Note the Messier twins at right!
- Apollo 15's orbital panoramic stereo frames AS15-P-10124 and 10129 also show Messier A.
- Research Lunar Orbiter and Apollo photographs: Danny Caes
Maps
(LAC zone 79B2) LAC map Geologic map AIC map LTO map
Description
Description: Wikipedia
Additional Information
- IAU page: Messier A
- Depth data from Kurt Fisher database
- Pike, 1976: 2.24 km
- Included on the ALPO list of banded craters
Nomenclature
- The present IAU name (Messier A) is derived from that of the nearby crater (Messier).
- According to Mary Blagg's Collated List of 1913, this crater (catalog entry 4255) was known to Beer and Mädler, and to Neison, as Messier A. Schmidt called it Messier East (see the note on IAU directions) or, occasionally, Messier A.
- In the 1928 IAU Transactions it is reported that the Lunar Commission considered adopting Krieger's suggestion of naming Hipparchus G (Catalog Number 3609, near Catalog Number 3607 for which Krieger suggested E. Pickering) W. Pickering after Prof. William H. Pickering (1858-1938), but that Prof. Pickering objected, saying that if a crater was to be named after him, he preferred it to be one "in which he is personally interested and on which he had worked."
- Following his wish, in the original IAU nomenclature of Blagg and Müller (1935) the name for the present catalog entry was changed to W. H. Pickering, honoring a living American astronomer and member of the Lunar Nomenclature Commission.
- In Table III of the first volume of the LPL's Photographic Lunar Atlas (approved by the IAU in 1961), Gerard Kuiper recommeded deleting the "H." changing the official name to W. Pickering.
- By the time they got to the Rectified Lunar Atlas (approved by the IAU in 1964), the LPL, for reasons explained in a news report about that IAU meeting, recommended reverting the name to Messier A with W. H. Pickering's commemoration being combined with that of E. C. Pickering in the unrelated crater formerly known as E. Pickering.
- Since the deletion of W. Pickering in 1964, Messier A has been the official IAU name for this crater.
LPOD Articles
A Comet and a Butterfly
Stunning
A Tunnel Thru the Moon
Fertility Central
Butterfly Wings & Railway Tracks
APOD Articles
Messier craters in Stereo (Red-Cyanblue anaglyph of orbital Apollo 11 photograph, by Patrick Vantuyne).
Bibliography
- Wood, C.A. Messier on the Moon. S&T Online article.
- Hill, Harold. A Portfolio of Lunar Drawings, pages 22, 23 (the evening terminator from Messier A to Taruntius), and pages 210-214 (the Messier twins).
- About W.H.Pickering himself (and his observations of the moon): EPIC MOON; a History of Lunar Exploration in the age of the Telescope (W.P.Sheehan/ T.A.Dobbins).
W. H. Pickering in the Sourcebook Project (William R. Corliss)
- In: Mysterious Universe, a handbook of astronomical anomalies (1979) :
- The Lunar Vegetation (Journal of the British Astronomical Association, 1926)
- Stationary Radiants (Journal of the British Astronomical Association, 1915)
- Curious Geometrical Figures appearing upon Mars (Scientific American, 1926)
