1998 SM165
Number
26308
Provisional name
1998 SM165
Class
Cubewano
Discovery
16.09.1998, 09:20:47 UT, Kitt Peak, AZ, USA
Discovery chart
Discovery position
10 Aries 28' Rx
Time of announcement
25.06.1999 - 19:34 UT
Orbital period
327.3 years
Orbit
  • crosses the orbits of Neptune and Pluto
Aphelion
65.550 AU
Perihelion
29.926 AU
Semimajor axis
47.738 AU
Magnitude
5.8
Diameter
132 - 410 km
Inclination
13.5
 
1998 SM165 has a binary companion.

Satellite
S/2001 (1998 SM165) 1
Discovery
22.12.2001, Hubble Space Telescope
Time of announcement
Distance between pair
about 6000 km