Henry (lunar crater)

Not to be confused with Henry (Apollo lunar crater).

Henry is a lunar impact crater that is located to the northwest of the larger crater Cavendish, in the southeastern part of the Moon's near side. It was named after the Scottish-American scientist Joseph Henry. Less than a half diameter to the northwest is similar-sized crater Henry Frères, named for the brothers Paul and Prosper Henry.

Henry

Lunar Orbiter 4 image
Coordinates	24.0°S 56.8°W / -24.0; -56.8
Diameter	41 km
Depth	2.63 km
Colongitude	57° at sunrise
Eponym	Joseph Henry

The outer rim of Henry has undergone some impact erosion, particularly in the south and southeast where it is overlain by a pair of small craters. The former crater lies along the inner wall and part of the interior floor, with a rampart ridge to the north. The rim bulges outward slightly between these two depressions, and there are slight outward bulges to the north and northeast. The interior floor is relatively featureless, with an albedo that matches the surrounding terrain. A ray from Byrgius A, a satellite of Byrgius, crosses the northern half of the crater from west to east-northeast.

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 Henry.

Henry	Latitude	Longitude	Diameter
A	24.5° S	57.1° W	8 km
B	24.3° S	56.3° W	5 km
D	24.9° S	59.1° W	7 km
J	22.8° S	55.4° W	5 km
K	23.2° S	55.5° W	6 km
L	25.5° S	57.4° W	6 km
M	25.8° S	57.6° W	13 km
N	26.1° S	58.3° W	9 km
P	25.8° S	59.0° W	6 km

References

• Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
• Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
• Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
• McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24.
• 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. S2CID 122125855.
• Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6.
• Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3.
• Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4.
• Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3.
• Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6.
• Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.