Arachne (minor planet designation: 407 Arachne) is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It was discovered on 13 October 1895, by German astronomer Max Wolf at Heidelberg Observatory.[4]
![]() Modelled shape of Arachne from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | 13 October 1895 |
| Designations | |
MPC designation | (407) Arachne |
| Pronunciation | /əˈrækniː/[1] |
Named after | Arachne [2] |
Alternative designations | 1895 CC |
Minor planet category | Main belt |
| Adjectives | Arachnean /ærəkˈniːən/[3] |
| Orbital characteristics [4] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 116.62 yr (42596 d) |
| Aphelion | 2.80706 AU (419.930 Gm) |
| Perihelion | 2.44624 AU (365.952 Gm) |
Semi-major axis | 2.62665 AU (392.941 Gm) |
| Eccentricity | 0.068685 |
Orbital period (sidereal) | 4.26 yr (1554.9 d) |
Mean anomaly | 155.411° |
Mean motion | 0° 13m 53.497s / day |
| Inclination | 7.52045° |
Longitude of ascending node | 294.698° |
Argument of perihelion | 81.6776° |
| Physical characteristics | |
| Dimensions | 95.07±5.4 km |
Synodic rotation period | 22.62 h (0.943 d)[4] |
Geometric albedo | 0.0548±0.007[4] |
Spectral type | C [4] |
Absolute magnitude (H) | 8.88[4] |
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