2003 HG57

System parameters

Heliocentric orbitPhotometry Position 2020/09/30 17:32 UTC
DES class = CLASSICAL HV = 6.8±0.5 +14:34:34.81 -15:21:35.4
<a> = 43.68 (AU) V = 23.1 (V2 = 24.0) Uncertainty = 0.6 (arcsec)
<e> = 0.024 Δmag = 0.35 Rates: +3.472, -1.069 ("/hr)
<i> = 1.73 (degrees) B-V = NULL  
Perihelion = 2053 V-R = NULL Opposition: May
Aphelion = 2197    

Astrometric observations

Observation time (UTC)Observatory/InstrumentRADEC Δ (AU)Δx (arcsec) Δx errorΔy (arcsec) Δy error
2010/12/22  16.69889 HST/WFC3 +13:52:58.46 -11:18:58.8 43.24784 -0.25020 0.00152 +0.33813 0.00158
plus proprietary data                

Orbital knowledge

Comments: Binary discovered by Brown et al. HST program 11644.


Last updated: 2020/09/30 17:32 UTC