1803 Zwicky

1803 Zwicky
Discovery[1]
Discovered byP. Wild
Discovery siteZimmerwald Obs.
Discovery date6 February 1967
Designations
(1803) Zwicky
Named after
Fritz Zwicky[2]
(Swiss astronomer)
1967 CA · 1931 DL
main-belt[1][3] · (inner)
Phocaea[4][5]
Orbital characteristics[3]
Epoch 17 December 2020 (JD 2459200.5)
Uncertainty parameter 0
Observation arc90.09 yr (32,907 d)
Aphelion2.9312 AU
Perihelion1.7685 AU
2.3498 AU
Eccentricity0.2474
3.60 yr (1,316 d)
284.97°
0° 16m 24.96s / day
Inclination21.553°
337.24°
253.96°
Known satellites1[6] (0.26Ds/Dp; P: 28.5 h)
Physical characteristics
  • 9.20±0.24 km[7]
  • 9.934±0.080 km[8][9]
  • (Prim.: 9.61±0.08 km)[6]
  • (Sec.: 2.50±0.19 km)[6]
2.73364±0.00005 h[10]
S[11][5]
12.23[1]
12.24[3]

1803 Zwicky, prov. designation: 1967 CA, is a stony Phocaea asteroid and binary system from the inner regions of the asteroid belt, approximately 10 kilometers (6.2 miles) in diameter. It was discovered on 6 February 1967, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.[1] It was later named after Swiss astronomer Fritz Zwicky.[2] The discovery of a 2.5-kilometer sized companion was announced on 8 March 2021.[6]

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  4. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference lcdb was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference johnstonsarchive-binary 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. ^ Cite error: The named reference Mainzer-2016 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. ^ Cite error: The named reference Pal-2020 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Popescu-2018b was invoked but never defined (see the help page).