 Star field showing Hilda (apmag 14.2) | |
| Discovery[1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Austrian Naval Obs. |
| Discovery date | 2 November 1875 |
| Designations | |
| (153) Hilda | |
| Pronunciation | /ˈhɪldə/[2] |
| A875 VC; 1935 GD | |
| Main belt (Hilda) | |
| Adjectives | Hildian /ˈhɪldiən/[3] |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 121.05 yr (44215 d) |
| Aphelion | 4.5341 AU (678.29 Gm) |
| Perihelion | 3.4225 AU (512.00 Gm) |
| 3.9783 AU (595.15 Gm) | |
| Eccentricity | 0.13971 |
| 7.935 yr (2,898.3 d) 7.94 yr (2898.3 d) | |
| 51.690° | |
| 0° 7m 27.156s / day | |
| Inclination | 7.8249° |
| 228.16° | |
| 38.617° | |
| Jupiter MOID | 0.569657 AU (85.2195 Gm) |
| TJupiter | 3.023 |
| Physical characteristics | |
| Dimensions | 170.63±3.3 km[1] |
| Mass | ~5.2×1018 kg |
Equatorial escape velocity | ~ 6 m/s |
| 5.9587 h (0.24828 d)[1] | |
| 0.0618±0.002[1] | |
| P[4] | |
| 7.48[1] | |
153 Hilda is a large asteroid in the outer main belt, with a diameter of 170 km.[1] The spectrum matches that of a P-type asteroid.[4] It was discovered by Johann Palisa on 2 November 1875, from the Austrian Naval Observatory at Pula, now Croatia.[1] The name was chosen by the astronomer Theodor von Oppolzer, who named it after one of his daughters.[5] It is the largest member of the hilda family, a collisional family of asteroids in the Hilda region.
- ^ a b c d e f g h Cite error: The named reference
jpldatawas invoked but never defined (see the help page). - ^ "Hilda". Dictionary.com Unabridged (Online). n.d.
- ^ Bhattacharya & Lichtman (2016) Solar Planetary Systems, p. 6
- ^ a b Cite error: The named reference
Lagerkvist_et_al_1995was invoked but never defined (see the help page). - ^ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer Science & Business Media. p. 29. ISBN 978-3-540-00238-3.