554 Peraga

554 Peraga
Discovery
Discovered by	Paul Götz
Discovery site	Heidelberg
Discovery date	8 January 1905
Designations
MPC designation	(554) Peraga
Pronunciation	Italian: [peˈraːɡa]
Alternative designations	1905 PS
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	115.51 yr (42190 d)
Aphelion	2.7391 AU (409.76 Gm)
Perihelion	2.0095 AU (300.62 Gm)
Semi-major axis	2.3743 AU (355.19 Gm)
Eccentricity	0.15364
Orbital period	3.66 yr (1336.3 d)
Mean anomaly	215.70°
Mean motion	0° 16m 9.84s / day
Inclination	2.9349°
Longitude of ascending node	295.434°
Argument of perihelion	127.356°
Physical characteristics
Mean radius	47.935±2.05 km; 48.23 ± 0.84 km
Mass	(6.59 ± 0.66) × 1017 kg
Mean density	1.40 ± 0.15 g/cm3
Rotation period	13.7128 h (0.57137 d)
Geometric albedo	0.0496±0.005
Absolute magnitude (H)	9.1

Peraga (minor planet designation: 554 Peraga) is a minor planet orbiting the Sun that was discovered by German astronomer Paul Götz on January 8, 1905, from Heidelberg.

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 101 km.^[3]

References

^ ^a ^b Yeomans, Donald K., "554 Peraga", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 7 May 2016.
^ ^a ^b ^c 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.
^ Ostro, S. J.; et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science, 229 (4712), pp. 442–446, Bibcode:1985Sci...229..442O, doi:10.1126/science.229.4712.442, PMID 17738665.

External links

Lightcurve plot of 554 Peraga, Palmer Divide Observatory, B. D. Warner (2006)
Asteroid Lightcurve Database (LCDB), query form (info)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
554 Peraga at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
554 Peraga at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

[JPL-1] Yeomans, Donald K., "554 Peraga", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 7 May 2016.

[Carry2012-2] 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.

[Ostro1985-3] Ostro, S. J.; et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science, 229 (4712), pp. 442–446, Bibcode:1985Sci...229..442O, doi:10.1126/science.229.4712.442, PMID 17738665.

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