1551 Argelander

1551 Argelander

Discovery [1]
Discovered by	Y. Väisälä
Discovery site	Turku Observatory
Discovery date	24 February 1938
Designations
MPC designation	1551 Argelander
Named after	Friedrich Argelander[2]
Alternative names	1938 DC1 · 1930 BL 1940 XD · 1951 XG1 1953 GD1 · 1957 KR 1962 XP
Minor planet category	main-belt
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	86.24 yr (31500 days)
Aphelion	2.5529 AU (381.91 Gm)
Perihelion	2.2365 AU (334.58 Gm)
Semi-major axis	2.3947 AU (358.24 Gm)
Eccentricity	0.066059
Orbital period	3.71 yr (1353.6 d)
Mean anomaly	241.48°
Mean motion	0° 15^m 57.456^s / day
Inclination	3.7611°
Longitude of ascending node	107.24°
Argument of perihelion	233.53°
Earth MOID	1.22902 AU (183.859 Gm)
Jupiter MOID	2.66946 AU (399.346 Gm)
Jupiter Tisserand parameter	3.524
Physical characteristics
Rotation period	4.0614 h (0.16923 d)
Absolute magnitude (H)	12.2

1551 Argelander, provisional designation 1938 DC₁, is a main belt asteroid discovered on February 24, 1938, by Yrjö Väisälä at the Iso-Heikkilä Observatory in Turku, Finland.^[1]

It is named after Friedrich Wilhelm Argelander (1799–1875), author of the famous Bonner Durchmusterung and 19th-century head of the ancient observatory at Turku. The lunar crater Argelander is also named after him.^[2]

References

1. "JPL Small-Body Database Browser: 1551 Argelander (1938 DC1)" (2015-04-10 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1551) Argelander. Springer Berlin Heidelberg. p. 123. ISBN 978-3-540-29925-7. Retrieved October 2015.

External links

• "1551 Argelander (1938 DC1)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2001551.
• 1551 Argelander at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters