 Animation of 705 Erminia's orbit 2000-2020Sun Earth · Mars · Jupiter · 705 Erminia | |
| Discovery | |
|---|---|
| Discovered by | E. Ernst |
| Discovery site | Heidelberg Obs. |
| Discovery date | 6 October 1910 |
| Designations | |
| MPC designation | (705) Erminia |
| Pronunciation | /ərˈmɪniə/ |
| Alternative designations | 1910 KV |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 105.53 yr (38544 d) |
| Aphelion | 3.0635189 AU (458.29590 Gm) |
| Perihelion | 2.7809463 AU (416.02365 Gm) |
| Semi-major axis | 2.92223259 AU (437.159773 Gm) |
| Eccentricity | 0.04834875 |
| Orbital period (sidereal) | 5.00 yr (1824.6 d) |
| Mean anomaly | 348.73426° |
| Mean motion | 0° 11 50.288 / day |
| Inclination | 25.045517° |
| Longitude of ascending node | 2.8949214° |
| Argument of perihelion | 101.35517° |
| Physical characteristics | |
| Dimensions | 128 km × 141 km (occultation) |
| Mean diameter | 132.261±1.178 km 70-130 km (assumed albedo=0.05-0.3) 134.22 ±2.3 (IRAS) 133.9-134.5 (albedo estimate) |
| Mass | (4.12 ± 1.775/0.942)×10 kg |
| Mean density | 3.401 ± 1.465/0.778 g/cm |
| Synodic rotation period | 53.96 h (2.248 d) |
| Geometric albedo | 0.031±0.005 |
| Spectral type | X (tholen) C (SMASSII) B-V = 0.667-0.725 U-B = 0.249-0.327 |
| Absolute magnitude (H) | 8.51 |
705 Erminia is a minor planet orbiting the Sun. Its name derives from the comic opera Erminie. An occultation on 8 December 2014 gave 3 chords, with one measurement suggesting a small moon 6-10 kilometers wide at a distance of 400 kilometers to the primary.
See also
References
- ^ "705 Erminia (1910 KV)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016.
- ^ Fienga, A.; Avdellidou, C.; Hanuš, J. (February 2020). "Asteroid masses obtained with INPOP planetary ephemerides". Monthly Notices of the Royal Astronomical Society. 492 (1): 589–602. doi:10.1093/mnras/stz3407.
- "OCCULTATION OF UCAC4 315_245088 BY 705 Erminia 2014 December 08". occultations.org. Retrieved 8 February 2015.
External links
- Lightcurve plot of (705) Erminia, Antelope Hills Observatory
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 705 Erminia at AstDyS-2, Asteroids—Dynamic Site
- 705 Erminia at the JPL Small-Body Database
| Minor planets navigator | |
|---|---|
| Small Solar System bodies | |||||||
|---|---|---|---|---|---|---|---|
| Minor planets |
| ||||||
| Comets | |||||||
| Other | |||||||
_mathilde.jpg){kind=small} | This article about an asteroid native to the asteroid belt is a stub. You can help Misplaced Pages by expanding it. |