568 Cheruskia

568 Cheruskia
Discovery
Discovered by	Paul Götz
Discovery site	Heidelberg
Discovery date	26 July 1905
Designations
MPC designation	(568) Cheruskia
Alternative designations	1905 QS
Orbital characteristics[1]
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	109.28 yr (39913 d)
Aphelion	3.3652 AU (503.43 Gm)
Perihelion	2.3978 AU (358.71 Gm)
Semi-major axis	2.8815 AU (431.07 Gm)
Eccentricity	0.16787
Orbital period	4.89 yr (1786.6 d)
Mean anomaly	164.09°
Mean motion	0° 12m 5.4s / day
Inclination	18.392°
Longitude of ascending node	249.791°
Argument of perihelion	174.386°
Physical characteristics
Mean radius	43.495±0.9 km
Rotation period	13.209 h (0.5504 d)[1][2]
Geometric albedo	0.0535±0.002
Absolute magnitude (H)	9.5

568 Cheruskia is a minor planet orbiting the Sun that was discovered by German astronomer Paul Götz on 26 July 1905 from Heidelberg.

Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, during 2008 gave a light curve with a period of 13.209 ± 0.001 hours and a brightness variation of 0.10 ± 0.01 in magnitude. This is in disagreement with a previous study reported in 2000 that gave a period estimate of 14.654 hours.^[2]

References

1 2 Yeomans, Donald K., "568 Cheruskia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
1 2 Warner, Brian D. (January 2009), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 May - September", The Minor Planet Bulletin, 36 (1), pp. 7–13, Bibcode:2009MPBu...36....7W.

External links

Lightcurve plot of 568 Cheruskia, Palmer Divide Observatory, B. D. Warner (2008)
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
568 Cheruskia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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[JPL-1] 1 2 Yeomans, Donald K., "568 Cheruskia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.

[Warner2009-2] 1 2 Warner, Brian D. (January 2009), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 May - September", The Minor Planet Bulletin, 36 (1), pp. 7–13, Bibcode:2009MPBu...36....7W.