19139 Apian

Apian

Discovery
Discovered by	F. Borngen
Discovery site	Tautenburg
Discovery date	6 April 1989
Designations
MPC designation	19139
Named after	Petrus Apianus
Alternative names	1989 GJ8, 1999 XP18
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	9715 days (26.60 yr)
Aphelion	2.7838253 AU (416.45434 Gm)
Perihelion	2.3841428 AU (356.66269 Gm)
Semi-major axis	2.583984 AU (386.5585 Gm)
Eccentricity	0.0773384
Orbital period	4.15 yr (1517.2 d)
Mean anomaly	322.4751°
Mean motion	0° 14^m 14.224^s / day
Inclination	8.023395°
Longitude of ascending node	48.22416°
Argument of perihelion	336.86331°
Earth MOID	1.38948 AU (207.863 Gm)
Jupiter MOID	2.57612 AU (385.382 Gm)
Jupiter Tisserand parameter	3.405
Physical characteristics
Absolute magnitude (H)	13.5

19139 Apian is a main-belt asteroid discovered on April 6, 1989 by F. Borngen at the astronomical observatory of the Thuringian State Observatory Tautenburg, Germany.

Apian is named after the German humanist Peter Apian. The name applies as official international standard and is registered at the International Astronomical Union (IAU).

References

1. "19139 Apian (1989 GJ8)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 April 2016.

External links

• Discovery Circumstances (15000–20000), with naming info, from the IAU Minor Planet Center
• 19139 Apian at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters