746 Marlu
From Wikipedia, the free encyclopedia
746 Marlu (prov. designation: A913 EJ or 1913 QY) is a dark and large background asteroid from the outer regions of the asteroid belt, approximately 72 kilometers (45 miles) in diameter. It was discovered on 1 March 1913, by German astronomer Franz Kaiser at the Heidelberg Observatory in southwest Germany.[1] The primitive P-type asteroid has a rotation period of 7.8 hours. It was named after the discoverer's daughter, Marie-Louise Kaiser.[2]
Quick Facts Discovery, Discovered by ...
![]() Modelled shape of Marlu from its lightcurve | |
Discovery [1] | |
---|---|
Discovered by | F. Kaiser |
Discovery site | Heidelberg Obs. |
Discovery date | 1 March 1913 |
Designations | |
(746) Marlu | |
Named after | Marie-Louise Kaiser (Discoverer's daughter)[2] |
A913 EJ · 1926 WA 1975 XN · 1913 QY | |
Orbital characteristics [3] | |
Epoch 31 May 2020 (JD 2459000.5) | |
Uncertainty parameter 0 | |
Observation arc | 104.37 yr (38,122 d) |
Aphelion | 3.8461 AU |
Perihelion | 2.3728 AU |
3.1094 AU | |
Eccentricity | 0.2369 |
5.48 yr (2,003 d) | |
60.352° | |
0° 10m 47.28s / day | |
Inclination | 17.480° |
1.9385° | |
306.79° | |
Physical characteristics | |
Dimensions | 72.0 km × 65.0 km[5] |
7.787 h[9][10] | |
Pole ecliptic latitude | |
Close