Hagen (crater)
Hagen is a lunar impact crater on the far side of the Moon. It lies to the north of the huge walled plain Planck, and south-southwest of the crater Pauli.
| Coordinates | 48.3°S 135.1°E |
|---|---|
| Diameter | 55 km |
| Depth | Unknown |
| Colongitude | 226° at sunrise |
| Eponym | Johann G. Hagen |
This is a very eroded crater with an outer rim that has been worn and broken in several places by overlapping craters. Hagen J is attached to what remains of the southeastern rim, and Hagen S crosses the rim to the west. On the interior floor, Hagen C lies just to the southeast of the midpoint. There are small craterlets along the inner edge to the south and west. The floor is pock-marked by tiny craterlets, but is otherwise relatively featureless.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Hagen.
| Hagen | Latitude | Longitude | Diameter |
|---|---|---|---|
| C | 48.0° S | 135.5° E | 22 km |
| J | 49.0° S | 137.2° E | 47 km |
| P | 52.1° S | 133.7° E | 26 km |
| Q | 50.0° S | 132.7° E | 20 km |
| S | 48.3° S | 133.2° E | 23 km |
| V | 47.1° S | 132.2° E | 12 km |
gollark: You can probably distinguish 4 colors at a decent distance, and switching twice a second seems vaguely plausible, so that's 4 bits a second.
gollark: Can you generate and detect different *colors*?
gollark: Assuming you can switch the light on and off pretty fast, and the magic can respond quickly, you might actually get decent data rates out of it.
gollark: Well, in that case I guess you could do automatic Morse code (or some variant), and if you could make a bright enough light (and maybe focus it on the receiving tower with mirrors or something), that might be longer-range than having to actually see the individual semaphore arms.
gollark: Oh, right. Hmm.
References
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- Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05.CS1 maint: ref=harv (link)
- Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.CS1 maint: ref=harv (link)
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- McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.CS1 maint: ref=harv (link)
- Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763.CS1 maint: ref=harv (link)
- Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.CS1 maint: ref=harv (link)
- Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.CS1 maint: ref=harv (link)
- Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.CS1 maint: ref=harv (link)
- Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.CS1 maint: ref=harv (link)
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