| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg |
| Discovery date | 19 September 1905 |
| Designations | |
| (574) Reginhild | |
| Pronunciation | German: [ˈʁeːɡɪnhɪlt] |
| 1905 RD | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.81 yr (40109 d) |
| Aphelion | 2.7924 AU (417.74 Gm) |
| Perihelion | 1.7120 AU (256.11 Gm) |
| 2.2522 AU (336.92 Gm) | |
| Eccentricity | 0.23985 |
| 3.38 yr (1234.6 d) | |
| 249.806° | |
| 0° 17m 29.76s / day | |
| Inclination | 5.6840° |
| 336.810° | |
| 76.710° | |
| Physical characteristics | |
Mean radius | 3.73±0.25 km |
| 14.339 h (0.5975 d)[1][2] | |
| 0.3819±0.057 | |
| 12.30 | |
Reginhild (minor planet designation: 574 Reginhild) is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on September 19, 1905. The name may have been inspired by the asteroid's provisional designation 1905 RD.
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a period of 14.339 ± 0.001 hours and a brightness variation of 0.17 ± 0.02 in magnitude. The light curve shows three uneven minimums and maximums per rotation cycle.[2]
References
- 1 2 Yeomans, Donald K., "574 Reginhild", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
- 1 2 Pilcher, Frederick (April 2011), "Rotation Period Determinations for 25 Phocaea, 140 Siwa, 149 Medusa 186 Celuta, 475 Ocllo, 574 Reginhild, and 603 Timandra", The Minor Planet Bulletin, vol. 38, no. 2, pp. 76–78, Bibcode:2011MPBu...38...76P.
External links
- 574 Reginhild at AstDyS-2, Asteroids—Dynamic Site
- 574 Reginhild at the JPL Small-Body Database
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