2212 Hephaistos help
Last update: 2024-04-30 21:31 UTC
Orbital Properties
Epoch
60400.0
MJD
Orbit type
Apollo
-
Perihelion (q)
0.352
au
Aphelion (Q)
3.976
au
Eccentricity (e)
0.837
-
Inclination (i)
11.5
deg
Orbit period (P)
1162.8
d
Earth MOID
0.11518
au
U parameter
0.0
-
Next Earth close approach
Date
2064-09-23
Nominal distance (from Earth center)
0.17783
au
26603199
km
Maximum Brightness
13
mag
Risk
Object is not in risk list
Object is not in priority list
Physical Properties
Absolute Magnitude (H)
13.5
mag
Diameter
6640
m
Taxonomic type
Sq/Q
Rotation period (T)
>20
h
Discovery Information
Discovery Date
1978-09-27
Observatory
Crimea-Nauchnyi
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