850 Altona

850 Altona
Discovery[1]
Discovered byS. Belyavskyj
Discovery siteSimeiz Obs.
Discovery date27 March 1916
Designations
(850) Altona
Pronunciation/ælˈtoʊnə/[2]
Named after
German city of Altona[3]
A916 FG · A923 RP
1916 Σ24 · 1923 RP
main-belt[1][4] · (outer)
background[5][6]
Orbital characteristics[4]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc102.52 yr (37,446 d)
Aphelion3.3753 AU
Perihelion2.6234 AU
2.9994 AU
Eccentricity0.1253
5.19 yr (1,897 d)
318.70°
0° 11m 22.92s / day
Inclination15.546°
121.13°
134.95°
Physical characteristics
Dimensions80.0 km × 80.0 km[6]
  • 73.16±0.88 km[7]
  • 77.097±2.263 km[8]
  • 80.90±1.8 km[9]
11.1913±0.0009 h[10][a]
  • 0.0390±0.002[9]
  • 0.043±0.009[8]
  • 0.048±0.001[7]
X (S3OS2)[11]
9.70[1][4]

850 Altona (prov. designation: A916 FG or 1916 Σ24) is a large background asteroid, approximately 77 kilometers (48 miles) in diameter, that is located in the outer region of the asteroid belt. It was discovered on 27 March 1916, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula.[1] The X-type asteroid has a rotation period of 11.2 hours. It was named after the city of Altona near Hamburg, Germany.[3]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Ferret was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference AKARI was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Warner-2018c was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Lazzaro-2004 was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).