![]() 3D convex shape model of 109 Felicitas | |
Discovery | |
---|---|
Discovered by | Christian Heinrich Friedrich Peters |
Discovery date | 9 October 1869 |
Designations | |
(109) Felicitas | |
Pronunciation | /fɪˈlɪsɪtæs/ [1] |
Named after | Felicitas |
A869 TA; 1911 HA | |
Main belt | |
Orbital characteristics [2] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 146.39 yr (53470 d) |
Aphelion | 3.4971 AU (523.16 Gm) |
Perihelion | 1.89658 AU (283.724 Gm) |
2.6968 AU (403.44 Gm) | |
Eccentricity | 0.29674 |
4.43 yr (1617.6 d) | |
Average
orbital speed | 17.73 km/s |
30.6904 ° | |
0° 13m 21.18s / day | |
Inclination | 7.8813° |
3.1617° | |
56.392° | |
Earth MOID | 0.920053 AU (137.6380 Gm) |
Jupiter MOID | 1.95452 AU (292.392 Gm) |
TJupiter | 3.291 |
Physical characteristics | |
Dimensions | 89.44±2.5
km
[2] 88.971 km [3] |
Mass | 7.5×1017 kg |
Equatorial
surface gravity | 0.0250 m/s2 |
Equatorial
escape velocity | 0.0473 km/s |
13.191 h (0.5496 d) [2] [4] | |
0.0699±0.004
[2] 0.07 ± 0.02 [3] | |
Temperature | ~170 K |
GC ( Tholen) [3] | |
8.75, [2] 8.759 [3] | |
Felicitas ( minor planet designation: 109 Felicitas) is a dark and fairly large main-belt asteroid. It was discovered by German-American astronomer C. H. F. Peters on October 9, 1869, and named after Felicitas, the Roman goddess of success. [5] The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003). [6]
This body is orbiting the Sun with a period of 4.43 years and an eccentricity (ovalness) of 0.3. Its orbital plane is inclined by 7.9° from the plane of the ecliptic. 109 Felicitas is classified as a carbonaceous GC-type asteroid. It is spinning with a rotation period of 13.2 hours. During 2002, 109 Felicitas was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 89 ± 9 km. This is consistent with the asteroid dimensions computed through other means. [4]
![]() 3D convex shape model of 109 Felicitas | |
Discovery | |
---|---|
Discovered by | Christian Heinrich Friedrich Peters |
Discovery date | 9 October 1869 |
Designations | |
(109) Felicitas | |
Pronunciation | /fɪˈlɪsɪtæs/ [1] |
Named after | Felicitas |
A869 TA; 1911 HA | |
Main belt | |
Orbital characteristics [2] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 146.39 yr (53470 d) |
Aphelion | 3.4971 AU (523.16 Gm) |
Perihelion | 1.89658 AU (283.724 Gm) |
2.6968 AU (403.44 Gm) | |
Eccentricity | 0.29674 |
4.43 yr (1617.6 d) | |
Average
orbital speed | 17.73 km/s |
30.6904 ° | |
0° 13m 21.18s / day | |
Inclination | 7.8813° |
3.1617° | |
56.392° | |
Earth MOID | 0.920053 AU (137.6380 Gm) |
Jupiter MOID | 1.95452 AU (292.392 Gm) |
TJupiter | 3.291 |
Physical characteristics | |
Dimensions | 89.44±2.5
km
[2] 88.971 km [3] |
Mass | 7.5×1017 kg |
Equatorial
surface gravity | 0.0250 m/s2 |
Equatorial
escape velocity | 0.0473 km/s |
13.191 h (0.5496 d) [2] [4] | |
0.0699±0.004
[2] 0.07 ± 0.02 [3] | |
Temperature | ~170 K |
GC ( Tholen) [3] | |
8.75, [2] 8.759 [3] | |
Felicitas ( minor planet designation: 109 Felicitas) is a dark and fairly large main-belt asteroid. It was discovered by German-American astronomer C. H. F. Peters on October 9, 1869, and named after Felicitas, the Roman goddess of success. [5] The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003). [6]
This body is orbiting the Sun with a period of 4.43 years and an eccentricity (ovalness) of 0.3. Its orbital plane is inclined by 7.9° from the plane of the ecliptic. 109 Felicitas is classified as a carbonaceous GC-type asteroid. It is spinning with a rotation period of 13.2 hours. During 2002, 109 Felicitas was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 89 ± 9 km. This is consistent with the asteroid dimensions computed through other means. [4]