2212 Hephaistos help
Last update: 2025-08-17 13:00 UTC
Orbital Properties
Epoch
61000.0
MJD
Orbit type
Apollo
-
Perihelion (q)
0.358
au
Aphelion (Q)
3.977
au
Eccentricity (e)
0.835
-
Inclination (i)
11.2
deg
Orbit period (P)
1165.6
d
Earth MOID
0.11194
au
U parameter
0.0
-
Next Earth close approach
Date
2064-09-23
Nominal distance (from Earth center)
0.17783
au
26603207
km
Maximum Brightness
13
mag
Risk
Object is not in risk 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
ORBIT VISUALISATION TOOLS