940 Kordula

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940 Kordula
Discovery 
Perihelion
2.7940 AU
3.3657 AU
Eccentricity0.1699
6.17 yr (2,255 d)
41.359°
0° 9m 34.56s / day
Inclination6.2428°
66.320°
283.51°
Physical characteristics
Mean diameter
  • 79.852±0.504 km[4]
  • 87.21±2.6 km[5]
  • 87.65±1.50 km[6]
Synodic rotation period
15.57±0.36 h[7][8]
  • 0.035±0.002[6]
  • 0.0352±0.002[5]
  • 0.041±0.009[4]
9.2[3]
9.3[1]

940 Kordula (

Lahrer Hinkender Bote.[2]

Orbit and classification

Kordula is a non-

Heidelberg Observatory on 11 October 1920, the night after its official discovery observation.[1]

Naming

This

Saint Cordula
.

Reinmuth's calendar names

As with 22 other asteroids – starting with

Lutz Schmadel, the author of the Dictionary of Minor Planet Names learned about Reinmuth's source of inspiration from private communications with Dutch astronomer Ingrid van Houten-Groeneveld, who worked as a young astronomer at Heidelberg.[2]

Physical characteristics

In the

Tholen classification, Kordula is closest to an F-type asteroid, and somewhat similar to that to a common carbonaceous C-type asteroid.[3][11]

Rotation period

In October 1999, a rotational

Diameter and albedo

According to the surveys carried out by the

albedo of (0.041±0.009), (0.0352±0.002) and (0.035±0.002), respectively.[4][5][6]

Further published mean-diameters and albedos by the WISE team include (77.941±26.705 km), (87.10±25.52 km), (87.29±33.02 km), and (93.192±1.325 km) with corresponding albedos of (0.044±0.024), (0.04±0.03), (0.04±0.03), and (0.0308±0.0066).[11][7] The Collaborative Asteroid Lightcurve Link adopts the results from IRAS, that is, an albedo of 0.0352 and a diameter of 87.21 km based on an absolute magnitude of 9.55.[7][11]

References

  1. ^ a b c d e "940 Kordula (A920 TE)". Minor Planet Center. Retrieved 16 February 2020.
  2. ^ .
  3. ^ a b c d e f g h "JPL Small-Body Database Browser: 940 Kordula (A920 TE)" (2020-01-07 last obs.). Jet Propulsion Laboratory. Retrieved 16 February 2020.
  4. ^
    S2CID 119293330
    .
  5. ^ . Retrieved 16 February 2020.
  6. ^ )
  7. ^ a b c d "LCDB Data for (940) Kordula". Asteroid Lightcurve Database (LCDB). Retrieved 16 February 2020.
  8. ^ .
  9. ^ "Asteroid 940 Kordula – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 16 February 2020.
  10. ^ "Lahrer hinkender Bote – Kalender 1925". Badischen Landesbibliothek. 1925. p. 1. Retrieved 16 February 2020. Lahrer Bote archive
  11. ^ a b c "Asteroid 940 Kordula". Small Bodies Data Ferret. Retrieved 16 February 2020.

External links