536 Merapi
| Discovery | |
|---|---|
| Discovered by | George Henry Peters |
| Discovery site | Washington, D.C. |
| Discovery date | 11 May 1904 |
| Designations | |
| (536) Merapi | |
| Pronunciation | /məˈrɑːpi/ |
Named after | Mount Mĕrapi, West Sumatera[1] |
| 1904 OF | |
| Adjectives | Merapian |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 111.94 yr (40885 d) |
| Aphelion | 3.7977 AU (568.13 Gm) |
| Perihelion | 3.1992 AU (478.59 Gm) |
| 3.4984 AU (523.35 Gm) | |
| Eccentricity | 0.085546 |
| 6.54 yr (2390.1 d) | |
| 302.40° | |
| 0° 9m 2.232s / day | |
| Inclination | 19.425° |
| 59.239° | |
| 295.862° | |
| Physical characteristics | |
| 75.71±4.5 km[2] 77.585 ± 1.765 km[3] | |
| Mass | (2.61 ± 0.47) × 1019 kg[3] |
Mean density | 13.36 ± 2.59 g/cm3[3] |
| 8.78 h (0.366 d) | |
| 0.0452±0.006 | |
| 8.2 | |
Merapi (minor planet designation: 536 Merapi) is a main belt asteroid orbiting the Sun. It was discovered by American astronomer George Henry Peters on May 11, 1904, from Washington, D.C.[4]
Photometric observations of this asteroid at the Oakley Observatory in Terre Haute, Indiana, during 2006 gave a light curve with a period of 8.809 ± 0.008 hours and a brightness variation of 0.23 ± 0.05 in magnitude.[5]
References
- ^ (in Indonesian) http://langitselatan.com/2011/01/12/nama-nama-indonesia-pun-tertera-di-angkasa/
- ^ a b Yeomans, Donald K., "536 Merapi", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 8 May 2016.
- ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009, S2CID 119226456. See Table 1.
- ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
- ^ Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - October-November 2006", The Minor Planet Bulletin, 34 (3): 59–64, Bibcode:2007MPBu...34...59D.
External links
- Lightcurve plot of (536) Merapi, Antelope Hills Observatory
- 536 Merapi at AstDyS-2, Asteroids—Dynamic Site
- 536 Merapi at the JPL Small-Body Database
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