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554 Peraga

From Wikipedia, the free encyclopedia

Minor planet orbiting the Sun

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^[1]
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 (sidereal)	3.66yr (1336.3d)
Mean anomaly	215.70°
Mean motion	0° 16^m 9.84^s / day
Inclination	2.9349°
Longitude of ascending node	295.434°
Argument of perihelion	127.356°
Physical characteristics
Mean radius	47.935±2.05km^[1] 48.23 ± 0.84 km^[2]
Mass	(6.59 ± 0.66) × 10¹⁷ kg^[2]
Meandensity	1.40 ± 0.15 g/cm³^[2]
Synodic rotation period	13.7128 h (0.57137 d)
Geometric albedo	0.0496±0.005
Absolute magnitude (H)	9.1

554 Peraga is aminor planet orbiting theSun that was discovered by German astronomerPaul Götz on January 8, 1905, fromHeidelberg.

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

References

^^a ^bYeomans, Donald K.,"554 Peraga",JPL Small-Body Database Browser,NASA Jet Propulsion Laboratory, retrieved7 May 2016.
^^a ^b ^cCarry, B. (December 2012), "Density of asteroids",Planetary and Space Science, vol. 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, vol. 229, no. 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 Archived 16 December 2017 at theWayback Machine)
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 atAstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
554 Peraga at theJPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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Small Solar System bodies

Designation Groups List Moon Meanings of names
Asteroid	Active Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

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