880 Herba

880 Herba
Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg Observatory
Discovery date	22 July 1917
Designations
MPC designation	(880) Herba
Alternative designations	1917 CK
Orbital characteristics[1]
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	98.72 yr (36057 days)
Aphelion	3.9674 AU (593.51 Gm)
Perihelion	2.0291 AU (303.55 Gm)
Semi-major axis	2.9983 AU (448.54 Gm)
Eccentricity	0.32323
Orbital period	5.19 yr (1896.3 d)
Mean anomaly	340.970°
Mean motion	0° 11m 23.424s / day
Inclination	15.145°
Longitude of ascending node	262.618°
Argument of perihelion	101.118°
Physical characteristics
Rotation period	12.266 h (0.5111 d)[1][2]
Spectral type	F-type
Absolute magnitude (H)	11.46

880 Herba is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 22 July 1917 in Heidelberg.

Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, in 2011 gave a light curve with a period of 12.266 ± 0.001 hours and a brightness variation of 0.13 ± 0.02 in magnitude. The curve is asymmetrical with one maxima and one minima.^[2]

References

1 2 Yeomans, Donald K., "880 Herba", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 3 May 2016.
1 2 Pilcher, Frederick (April 2012), "Rotation Period Determinations for 31 Euphrosyne, 65 Cybele, 154 Bertha 177 Irma, 200 Dynamene, 724 Hapag, 880 Herba, and 1470 Carla", The Minor Planet Bulletin, 39 (2), pp. 57–60, Bibcode:2012MPBu...39...57P.

External links

Lightcurve plot of 880 Herba, 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
880 Herba at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
880 Herba 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., "880 Herba", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 3 May 2016.

[Pilcher39-2] 1 2 Pilcher, Frederick (April 2012), "Rotation Period Determinations for 31 Euphrosyne, 65 Cybele, 154 Bertha 177 Irma, 200 Dynamene, 724 Hapag, 880 Herba, and 1470 Carla", The Minor Planet Bulletin, 39 (2), pp. 57–60, Bibcode:2012MPBu...39...57P.