Balmer (moon crater)
Balmer | ||
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position | 20.27 ° S , 70.22 ° O | |
diameter | 136 km | |
depth | 1960 m | |
Card sheet | 99 (PDF) | |
Named after | Johann Jakob Balmer (1825–1898) | |
Named since | 1964 | |
Unless otherwise stated, the information comes from the entry in the IAU / USGS database |
Balmer is an impact crater on the eastern edge of the lunar front , east of Mare Fecunditatis , northeast of Petavius crater and northwest of Humboldt . The crater wall has disappeared in the north, otherwise it has been moderately eroded. The inside of the crater is flat.
Letter | position | diameter | link |
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M. | 20.77 ° S , 71.55 ° O | 7 km | [1] |
N | 19.92 ° S , 69.8 ° E | 8 kilometers | [2] |
P | 20.48 ° S , 67.53 ° O | 15 km | [3] |
Q | 18.7 ° S , 70.47 ° O | 8 kilometers | [4] |
R. | 18.73 ° S , 69.12 ° O | 6 km | [5] |
S. | 18.57 ° S , 67.61 ° O | 8 kilometers | [6] |
The crater was officially named by the IAU in 1964 after the Swiss mathematician and physicist Johann Jakob Balmer .
Web links
Individual evidence
- ^ John E. Westfall: Atlas of the Lunar Terminator. Cambridge University Press, Cambridge et al. 2000, ISBN 0-521-59002-7 .