840 Zenobia

840 Zenobia is a minor planet orbiting the Sun. It was discovered by German astronomer Max Wolf at Heidelberg on September 25, 1916. The origin of the name is uncertain, but it may be named after the Slavic god of the hunt.^[3]

840 Zenobia

Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	25 September 1916
Designations
MPC designation	(840) Zenobia
Pronunciation	/zɛˈnoʊbiə/[1]
Alternative designations	1916 AK
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	99.23 yr (36243 d)
Aphelion	3.4448 AU (515.33 Gm)
Perihelion	2.8197 AU (421.82 Gm)
Semi-major axis	3.1322 AU (468.57 Gm)
Eccentricity	0.099775
Orbital period (sidereal)	5.54 yr (2024.8 d)
Mean anomaly	73.117°
Mean motion	0° 10m 40.08s / day
Inclination	9.9848°
Longitude of ascending node	272.773°
Argument of perihelion	10.358°
Earth MOID	1.80367 AU (269.825 Gm)
Jupiter MOID	1.68787 AU (252.502 Gm)
TJupiter	3.182
Physical characteristics
Synodic rotation period	5.565 h (0.2319 d)
Absolute magnitude (H)	10.0

Photometric observations of the asteroid during 2006 at the Palmer Divide Observatory in Colorado Springs, Colorado, were used to generate a light curve with a period of 5.565 ± 0.005 hours and a variation in brightness of 0.20 ± 0.02 magnitude.^[4]

References

1. Noah Webster (1884) A Practical Dictionary of the English Language
2. "840 Zenobia (1916 AK)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 4 May 2016.
3. Schmadel, Lutz D. (2003), Dictionary of Minor Planet Names, vol. 1, Springer, p. 77, ISBN 3540002383.
4. Warner, Brian D. (September 2006), "Asteroid lightcurve analysis at the Palmer Divide Observatory - late 2005 and early 2006", The Minor Planet Bulletin, 33: 58–62, Bibcode:2006MPBu...33...58W.

External links

• Lightcurve plot of 840 Zenobia, Palmer Divide Observatory, B. D. Warner (2005)
• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback 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
• 840 Zenobia at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 840 Zenobia at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters