103_hera | escapevelocity | 00482 (kilometreperseconds) <tsp> 103_hera | temperature | 1700 (kelvins) <tsp> 103_hera | apoapsis | 4371700000 (kilometres) <sep> hera (minor planet designation: 103 hera) is a moderately large main-belt asteroid with an orbital period of 444 years it was discovered by canadian-american astronomer james craig watson on september 7, 1868, and named after hera, queen and fifth in power of the olympian gods in greek mythology this is a stony s-type asteroid with a silicate surface composition photometric observations made in 2010 at the organ mesa observatory at las cruces, new mexico, and the hunters hill observatory at ngunnawal, australian capital territory, give a synodic rotation period of 23740±0001 h the bimodal light curve shows a maximum brightness variation of 045 ± 003 in magnitudemeasurements made with the iras observatory give a diameter of 9158±414 km and a geometric albedo of 019±002 
the celestial body known as 103 hera has an escape velocity of 0.0482 k.p.s.. temperature of 170.0 kelvins and an apoapsis of 437170000.0 kilometres.no information