591 Irmgard
Discovery | |
---|---|
Discovered by | August Kopff |
Discovery site | Heidelberg |
Discovery date | 14 March 1906 |
Designations | |
MPC designation | (591) Irmgard |
Pronunciation | German: [ˈɪʁmɡaːt][1] |
1906 TP | |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 110.08 yr (40205 d) |
Aphelion | 3.2342 AU (483.83 Gm) |
Perihelion | 2.1241 AU (317.76 Gm) |
2.6792 AU (400.80 Gm) | |
Eccentricity | 0.20718 |
4.39 yr (1601.8 d) | |
43.3627° | |
0° 13m 29.1s / day | |
Inclination | 12.490° |
334.289° | |
217.191° | |
Physical characteristics | |
Mean radius | 25.93±0.65 km |
Synodic rotation period | 7.35 h (0.306 d) |
0.0364±0.002 | |
Absolute magnitude (H) | 10.64 |
Irmgard (minor planet designation: 591 Irmgard) is a minor planet orbiting the Sun.
References[]
- ^ (German Names)
- ^ "591 Irmgard (1906 TP)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
External links[]
- 591 Irmgard at AstDyS-2, Asteroids—Dynamic Site
- 591 Irmgard at the JPL Small-Body Database
Categories:
- Minor planet object articles (numbered)
- Background asteroids
- Discoveries by August Kopff
- Minor planets with names of unknown origin
- Named minor planets
- X-type asteroids (Tholen)
- Astronomical objects discovered in 1906
- Main-belt-asteroid stubs