Samir

Samir (about halfway between Delisle and Diophantus)

Lat: 28.5°N, Long: 34.29°W, Diam: 1.86 km, Depth: 0.418 km, [/R%C3%BCkl%2019 Rükl: 19]

Left: Apollo 15 AS15-M2332 Samir is the large western member of the bright crater pair, with the smaller [/Louise Louise] to its east (right). The winding channel above them is a small portion of [/Rima%20Diophantus Rima Diophantus].
Right: LROC NAC image - M104740941LE.

Table of Contents

[#Samir (about halfway between Delisle and Diophantus) Samir (about halfway between Delisle and Diophantus)]

[#Samir (about halfway between Delisle and Diophantus)-Images Images]

[#Samir (about halfway between Delisle and Diophantus)-Maps Maps]

[#Samir (about halfway between Delisle and Diophantus)-Description Description]

[#Samir (about halfway between Delisle and Diophantus)-Description-Elger Elger]

[#Samir (about halfway between Delisle and Diophantus)-Description-Wikipedia Wikipedia]

[#Samir (about halfway between Delisle and Diophantus)-Additional Information Additional Information]

[#Samir (about halfway between Delisle and Diophantus)-Nomenclature Nomenclature]

[#Samir (about halfway between Delisle and Diophantus)-LPOD Articles LPOD Articles]

[#Samir (about halfway between Delisle and Diophantus)-Bibliography Bibliography]

Images

LPOD Photo Gallery Lunar Orbiter Images Apollo Images

• Apollo 15's orbital Hasselblad photograph AS15-92-12460 shows a close-up of both Samir and its small nearby companion [/Louise Louise].
• Apollo 15's orbital ITEK-panoramic frames which show Samir and Louise:
  • AS15-P-10295 and AS15-P-10290 (on both frames: scroll to the right (north) of the pronounced crater [/Diophantus Diophantus]).
  • Research Apollo 15 photographs: Danny Caes

Maps

([/LAC%20zone LAC zone] 39B2) LAC map Geologic map LM map LTO map Topophotomap

Description

The larger of a pair of craters situated to the SW of a bend in the [/Rima%20Diophantus Diophantus Rille]. The smaller crater, 2.5 km to the east, is [/Louise Louise]. The pair is surrounded by a blanket of bright ejecta, suggesting that at least one of them resulted from a relatively fresh impact. Samir has a relatively flat floor, a little less than 1 km in diameter.
 - JimMosher JimMosher
 
 

Elger

([/IAU%20Directions IAU Directions]) S. of [/DELISLE DELISLE] there is a tolerably bright spot on the site of some hills.

Wikipedia

Samir

Additional Information

• IAU page: Samir
• In comparison to the current official IAU data listed in the title line, the position and dimensions in the older coordinate system of the topophotomap as read by [/LTVT LTVT] were: Lat: 28.492°N, Long: 34.306°W, Diam: 1.9 km. The depth listed in the title line was read from the highest point on the rim to the lowest point on the floor. On the topophotomap, the deepest point is indicated as falling at 28.498N/34.302W. The elevation of that point is listed as 5176 m. Strangely, on the lower resolution LTO-39B2, the elevation is given as 5163 m. Usually the [/LTO LTO] copies the information from the [/topophotomap topophotomap].
• From the shadows in AS15-M-2332, Samir is about 400 m deep, roughly confirming the validity of the topophotomap contours. [/Louise Louise] is about 140 m deep. - JimMosher JimMosher
• The pairing of Samir and [/Louise Louise], with their surrounding bright ejecta, is reminiscent of the pairing of [/Censorinus Censorinus] and [/Censorinus Censorinus] A. In the latter case it seems clear that the bright ejecta originate in the smaller of the two craters ([/Censorinus Censorinus]). In the present case, it appears (but is much less clear) that the reverse is true: the larger crater, Samir (similar in size, incidentally, to [/Censorinus Censorinus]), seems to be the source of the ejecta. - JimMosher JimMosher
• [/Moore%20et%20al%2C%201980 Moore et al, 1980] lists the "small crater between [/Delisle Delisle] and [/Diophantus Diophantus]" as a thermal anomaly crater, implying youthful age - - but which is the anomaly crater, [/Louise Louise] or Samir?

Nomenclature

• Samir is a generic Arabic male name. It honors no particular person.
• According to [/NASA%20RP-1097 NASA RP-1097], Samir is a [/Minor%20Feature Minor Feature] whose name was originally intended only for use in connection with Topophotomap 39B2/S1(on which it is plotted).
• In addition to Samir and [/Louise Louise], the other [/Minor%20Feature Minor Features] labeled on Topophotomap 39B2/S1 are [/Isabel Isabel] and [/Walter Walter].
  All these names were among 95 Topophotomap [/Minor%20Feature Minor Feature] names approved by the IAU in 1976 ([/IAU%20Transactions%20XVIIB IAU Transactions XVIIB]).
• Much confusion about Samir exists because in Antonin Rükl's popular [/R%C3%BCkl Atlas of the Moon] only a single crater is plotted at this location, and it is labeled [/Louise Louise] with a special arrow pointing to it. Similarly, in the popular Virtual Moon Atlas freeware program, only a single name is given in this region, and that name is "Louise". Rükl's reason for choosing the name [/Louise Louise] is unknown. In all likelihood, the crater he drew and labeled is Samir.
• In the original IAU nomenclature of [/Blagg%20and%20M%C3%BCller Blagg and Müller] there was a Greek-lettered peak known as [/Diophantus Diophantus] Alpha in this vicinity. This is probably the bright spot refered to by Elger, the spot being produced by the bright ejecta around Samir and [/Louise Louise].
  - JimMosher JimMosher

LPOD Articles

[/LPOD%20Apr%2029%2C%202008 A New Discovery?]

Bibliography

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This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx3u2