1309 Hyperborea

1309 Hyperborea
Discovery[1]
Discovered byG. Neujmin
Discovery siteSimeiz Obs.
Discovery date11 October 1931
Designations
(1309) Hyperborea
Pronunciation/haɪpərˈbɔːriːə/[2]
Named after
Hyperborea[3]
(Greek mythology)
1931 TO · 1934 GT
1971 SG1 · 1973 AW4
A919 RB · A919 SH
main-belt · (outer)[1][4]
background[5]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc98.23 yr (35,880 days)
Aphelion3.6888 AU
Perihelion2.7251 AU
3.2069 AU
Eccentricity0.1503
5.74 yr (2,098 days)
292.38°
0° 10m 17.76s / day
Inclination10.279°
206.08°
244.90°
Physical characteristics
Dimensions55.14±14.34 km[6]
55.48±13.26 km[7]
57.11 km (derived)[4]
57.15±3.9 km[8]
57.570±0.349 km[9]
57.99±0.72 km[10]
61.605±1.019 km[11]
64.40±2.03 km[12]
13.858±0.004 h[13]
13.87±0.002[13]
13.88±0.02 h[14]
13.95±0.02 h[15]
0.03±0.02[6]
0.032±0.007[12]
0.0387±0.0054[11]
0.04±0.03[7]
0.0411 (derived)[4]
0.043±0.005[9]
0.044±0.001[10]
0.0450±0.007[8]
C[4][16]
10.20[8][10][11] · 10.30[4][12] · 10.30±0.11[16] · 10.40[1][6] · 10.43[7]

1309 Hyperborea /haɪpərˈbɔːriːə/ is a carbonaceous background asteroid from the outermost regions of the asteroid belt, approximately 57 kilometers in diameter. It was discovered on 11 October 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula, and given the provisional designation 1931 TO.[17] The asteroid was named after Hyperborea, the northern homeland of a Greek mythical race of giants.[3]

  1. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ "hyperborean". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
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  6. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  12. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Oliver-2008 was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Apostolovska-2004 was invoked but never defined (see the help page).
  16. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).