682 Hagar

682 Hagar
Modelled shape of Hagar from its lightcurve
Discovery [1]
Discovered byA. Kopff
Discovery siteHeidelberg Obs.
Discovery date17 June 1909
Designations
(682) Hagar
Pronunciation/ˈheɪɡɑːr/[2]
Named after
Hagar (Biblical woman)[3]
A909 MA · 1943 GK
1953 VU3 · 1975 VO5
1909 HA
main-belt [1][4] · (middle)
Eunomia [5][6][7]
Orbital characteristics [4]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc110.96 yr (40,529 d)
Aphelion3.1105 AU
Perihelion2.1966 AU
2.6536 AU
Eccentricity0.1722
4.32 yr (1,579 d)
225.55°
0° 13m 40.8s / day
Inclination11.507°
190.78°
105.08°
Physical characteristics
19±4 km[8]
4.8503±0.0001 h[8][a]
  • (56.0°, −78.0°) (λ1/β1)[9]
  • (255.0°, −57.0°) (λ2/β2)[9]
0.057 (assumed)[8]

682 Hagar (prov. designation: A909 MA or 1909 HA) is an Eunomia asteroid from the central regions of the asteroid belt. It was discovered on 17 June 1909, by German astronomer August Kopff at the Heidelberg-Königstuhl State Observatory.[1] The presumed S-type asteroid has a short rotation period of 4.9 hours and measures approximately 19 kilometers (12 miles) in diameter. Possibly inspired by the asteroid's provisional designation "1909 HA", it was named for the biblical woman Hagar.[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. ^ Cite error: The named reference Ferret-family was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Zappala-family was invoked but never defined (see the help page).
  8. ^ a b c d e f Cite error: The named reference Pilcher-2014b was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Ferret was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference lcdb was invoked but never defined (see the help page).


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