1580 Betulia

1580 Betulia
Lightcurve-based 3D-model of Betulia
Discovery[1]
Discovered byE. L. Johnson
Discovery siteJohannesburg Obs.
Discovery date22 May 1950
Designations
(1580) Betulia
Pronunciation/bɛˈtjuːliə/
Named after
Betulia Toro Herrick
(wife of astronomer S. Herrick)[2]
1950 KA
NEO · Amor[1][3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc66.64 yr (24,342 days)
Aphelion3.2684 AU
Perihelion1.1258 AU
2.1971 AU
Eccentricity0.4876
3.26 yr (1,190 days)
252.41°
0° 18m 9.36s / day
Inclination52.096°
62.291°
159.50°
Earth MOID0.1365 AU · 53.2 LD
Physical characteristics
Dimensions3.82 km[4]
3.9 km[5]
4.2 km (CALL-LCDB)[6]
4.57 km[7]
5.37±0.04 km[8]
5.39±0.54 km[9]
5.8 km (Gehrels 1994)[1]
8.55±5.23 km[10]
6.130 h[11]
6.1324±0.0002 h[12]
6.134 h[13]
6.135±0.005 h[14]
6.13836 h[9][15]
6.156 h[16]
6.48 h[17]
0.04±0.08[10]
0.05[18]
0.07±0.01[8]
0.077[7]
0.08 (Gehrels 1994)[1]
0.09 (CALL-LCDB)[6]
0.11[4]
0.17[5]
Tholen = C[1][6] · B[19]
B–V = 0.656[1]
U–B = 0.249[1]
14.00[19] · 14.5[10] · 14.53[7] · 14.58[5] · 14.8[1] · 14.8±0.3[12] · 14.90[8] · 15.1[4][6]

1580 Betulia, provisional designation 1950 KA, is an eccentric, carbonaceous asteroid, classified as near-Earth object of the Amor group, approximately 4.2 kilometers in diameter. It was discovered on 22 May 1950, by South African astronomer Ernest Johnson at the Union Observatory in Johannesburg.[3] The asteroid was named for Betulia Toro, wife of astronomer Samuel Herrick.[2]

  1. ^ a b c d e f g h i Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
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  4. ^ a b c Cite error: The named reference Harris-2005 was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference Harris-1998a was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference EARN was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Magri-2007 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
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  12. ^ a b Cite error: The named reference Wisniewski-1997 was invoked but never defined (see the help page).
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  19. ^ a b Cite error: The named reference Carry-2016 was invoked but never defined (see the help page).