501 Urhixidur

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501 Urhixidur
Discovery
Discovered by Max Wolf
Discovery date 18 January 1903
Designations
MPC designation (501) Urhixidur
1903 LB; 1943 FC;
1949 FW; 1951 RB2;
1951 SE; 1955 FB
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 113.22 yr (41352 d)
Aphelion 3.6114 AU (540.26 Gm)
Perihelion 2.7270 AU (407.95 Gm)
3.1692 AU (474.11 Gm)
Eccentricity 0.13953
5.64 yr (2060.7 d)
16.65 km/s
201.00°
0° 10m 28.92s / day
Inclination 20.854°
357.30°
355.03°
Earth MOID 1.7217 AU (257.56 Gm)
Jupiter MOID 1.82444 AU (272.932 Gm)
Jupiter Tisserand parameter 3.086
Physical characteristics
Dimensions 77.44±2.3 km
Mass 4.9×1017 kg
Mean density
2.0 g/cm³
Equatorial surface gravity
0.0216 m/s²
Equatorial escape velocity
0.0409 km/s
13.1743 h (0.54893 d)
0.0812±0.005
Surface temp. min mean max
Kelvin[2] 144 K 153 K 165 K
Celsius -129°C -120°C -108°C
Fahrenheit -200.2°F -184°F -162.4°F
?
12.6–15.9
9.3

501 Urhixidur is a relatively large (ranked 372nd by IRAS) main belt asteroid. It was discovered by Dr. Maximilian Franz Joseph Cornelius Wolf (1863–1932), at the Königstuhl Observatory in Heidelberg, Germany on January 18, 1903. Like 500 Selinur and 502 Sigune, it is named after a character in Friedrich Theodor Vischer's then-bestseller satirical novel Auch Einer.[3]

Its rotational period was reported as 15 hours in 1992, but corrected to 13.174 hours in 2013.[4]

References[edit]

  1. ^ "501 Urhixidur". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 501. Retrieved 9 May 2016. 
  2. ^ "Planetary Habitability Calculators". Planetary Habitability Laboratory. University of Puerto Rico at Arecibo. Retrieved 17 December 2015. 
  3. ^ Schmadel, Lutz D. (2013). Dictionary of Minor Planet Names. Springer Science & Business Media. p. 84. ISBN 9783662028049. 
  4. ^ Hills, Kevin. "Asteroid Lightcurve Analysis at Riverland Dingo Observatory (RDO): 501 Urhixidur, 1897 Hind, 1928 Summa, 6261 Chione, and (68216) 2001 CV 26". The Minor Planet Bulletin. 40 (1): 12–13. Bibcode:2013MPBu...40...12H. ISSN 1052-8091. 

External links[edit]