536 Merapi

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536 Merapi
Discovery
Discovered by George Henry Peters
Discovery site Washington, D.C.
Discovery date11 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
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]
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]

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    References

    1. (in Indonesian) http://langitselatan.com/2011/01/12/nama-nama-indonesia-pun-tertera-di-angkasa/
    2. 1 2 Yeomans, Donald K., "536 Merapi", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory , retrieved 8 May 2016.
    3. 1 2 3 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.
    4. "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
    5. 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.