Hansen
Contents
Hansen
|
Lat: 14.0°N, Long: 72.5°E, Diam: 39 km, Depth: 2.77 km, [/R%C3%BCkl%2038 Rükl: 38] |
Table of Contents
[#Hansen Hansen]
[#Hansen-Images Images]
[#Hansen-Maps Maps]
[#Hansen-Description Description]
[#Hansen-Description: Elger Description: Elger]
[#Hansen-Description: Wikipedia Description: Wikipedia]
[#Hansen-Additional Information Additional Information]
[#Hansen-Nomenclature Nomenclature]
[#Hansen-LPOD Articles LPOD Articles]
[#Hansen-Bibliography Bibliography]
LO-IV-165H
Images
LPOD Photo Gallery Lunar Orbiter Images Apollo Images
- The wonderful system of bright and dark "spokes" on the inner slopes of the cone-shaped crater Hansen A is noticeable near the right margin of Apollo 15's orbital ITEK-panoramic frame AS15-P-9151. Hansen A is located immediately west-southwest of Charles Wood's Lacus Risus Felis.
- Research Apollo 15's ITEK-frame: Danny Caes
Maps
([/LAC%20zone LAC zone] 63A1) USGS Digital Atlas PDF
IAU page: Hansen
Description
Description: Elger
([/IAU%20Directions IAU Directions]) HANSEN.--A ring-plain, 32 miles in diameter, on the E. border of the [/Mare%20Crisium Mare Crisium] N. of [/Condorcet Condorcet]. Schmidt shows a central mountain and a terraced wall.
Description: Wikipedia
Additional Information
Depth data from [/Kurt%20Fisher%20crater%20depths Kurt Fisher database]
- Westfall, 2000: 2.77 km
- Cherrington, 1969: 1.49 km
Nomenclature
- Named for Peter Andreas Hansen (December 8, 1795 - March 28, 1874), a Danish astronomer. The problems of gravitational astronomy engaged the chief part of Hansen's attention. He researched the mutual perturbations of Jupiter and Saturn. In 1838 he published a revision of the [/lunar%20theory lunar theory], entitled Fundamenta nova investigationis, &c., and improved Tables of the Moon ("Hansen's Lunar Tables") based upon it were printed in 1857. Hansen twice visited England and was twice (in 1842 and 1860) the recipient of the Gold Medal of the Royal Astronomical Society. He communicated to that society in 1847 an able paper on a long-period lunar inequality (Memoirs Roy. Astr. Society, xvi. 465), and in 1854 one on the moon's figure, advocating the mistaken hypothesis of its deformation by a huge elevation directed towards the earth (ib. xxiv. 29). Hansen gave in 1854 the first intimation that the accepted distance of the sun was too great by some millions of miles (Month. Notices Roy. Astr. Soc. xv. 9), the error of J. F. [/Encke Encke]'s result having been rendered evident through his investigation of a lunar inequality.
- Hansen is Catalog number 11 in Mary Blagg's [/Collated%20List Collated List] and in the IAU's [/Named%20Lunar%20Formations Named Lunar Formations]. The name is attributed to [/Beer%20and%20M%C3%A4dler Beer and Mädler], who do not appear to identify the honoree.
- Hansen B was called "Lower" by [/Wilkins%20and%20Moore Wilkins and Moore], but the I.A.U. did not accept that name. William Lower was an English selenographer, and friend of Thomas [/Harriot Harriot] circa 1610.
- Hansen B was also called "Olblatt" by Julius Heinrich Franz (mentioned in [/Named%20Lunar%20Formations Named Lunar Formations]). Research: Danny Caes.
LPOD Articles
Bibliography
This page has been edited 1 times. The last modification was made by - tychocrater tychocrater on Jun 13, 2009 3:24 pm - afx4
