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177 Irma
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From Wikipedia, the free encyclopedia
Irma (minor planet designation: 177 Irma) is a fairly large and dark main belt asteroid. It was discovered by the French brothers Paul Henry and Prosper Henry on November 5, 1877. Paul was credited for this discovery. The meaning of the name Irma is unknown.[3]
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico in 2011 gave a light curve with a period of 13.856 ± 0.001 hours and a brightness variation of 0.30 ± 0.03 in magnitude.[2]
References[edit]
^ a b Pilcher, Frederick (April 2012), "Rotation Period Determinations for 31 Euphrosyne, 65 Cybele, 154 Bertha 177 Irma, 200 Dynamene, 724 Hapag, 880 Herba, and 1470 Carla", The Minor Planet Bulletin, vol. 39, no. 2, pp. 57–60, Bibcode:2012MPBu...39...57P.
^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 29, ISBN 3642297188.
External links[edit]
t
e
Retrieved from "https://en.wikipedia.org/w/index.php?title=177_Irma&oldid=1191624256"
Categories:
●Minor planet object articles (numbered)
●Background asteroids
●Discoveries by Paul Henry and Prosper Henry
●Named minor planets
●C-type asteroids (Tholen)
●Ch-type asteroids (SMASS)
●Astronomical objects discovered in 1877
●C-type main-belt-asteroid stubs
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