536 Merapi

536 Merapi
Discovery
Discovered by	George Henry Peters
Discovery site	Washington, D.C.
Discovery date	11 May 1904
Designations
MPC designation	(536) Merapi
Pronunciation	/məˈrɑːpi/
Named after	Mount Mĕrapi, West Sumatera[1]
Alternative designations	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)
Semi-major axis	3.4984 AU (523.35 Gm)
Eccentricity	0.085546
Orbital period	6.54 yr (2390.1 d)
Mean anomaly	302.40°
Mean motion	0° 9m 2.232s / day
Inclination	19.425°
Longitude of ascending node	59.239°
Argument of perihelion	295.862°
Physical characteristics
Mean radius	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]
Rotation period	8.78 h (0.366 d)
Geometric albedo	0.0452±0.006
Absolute magnitude (H)	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/
Yeomans, Donald K., "536 Merapi", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 8 May 2016.
Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. 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), pp. 59–64, Bibcode:2007MPBu...34...59D.

External links

Lightcurve plot of (536) Merapi, Antelope Hills Observatory
536 Merapi at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
536 Merapi at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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[1] (in Indonesian) http://langitselatan.com/2011/01/12/nama-nama-indonesia-pun-tertera-di-angkasa/

[JPL-2] Yeomans, Donald K., "536 Merapi", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 8 May 2016.

[Carry2012-3] Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.

[IAU_MPC-4] "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.

[Warner2008-5] Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - October-November 2006", The Minor Planet Bulletin, 34 (3), pp. 59–64, Bibcode:2007MPBu...34...59D.