Tags: Planet.

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.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.

Loading...

This page contains content from the copyrighted Wikipedia article "177 Irma"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.