1203 Nanna

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1203 Nanna
Discovery
Synodic rotation period
15.6±0.1 h (dated)[9]
18.54±0.01 h[10]
25.80±0.05 h[11]
0.028±0.017[7]
0.03±0.01[8]
0.03 (derived)[3]
0.04±0.00[4]
0.0473±0.012 (IRAS:2)[6]
0.056±0.004[5]
C[3]
11.20[5][6] · 11.60[8] · 11.63±0.24[12] · 11.7[1][3] · 11.71[4][7]

1203 Nanna (

Heidelberg Observatory in southwest Germany,[13] and named after Anna Risi, a model and mistress of painter Anselm Feuerbach.[2]

Orbit

Nanna is a dark C-type asteroid. It orbits the Sun at a distance of 2.2–3.6 AU once every 4 years and 11 months (1,797 days). Its orbit has an eccentricity of 0.25 and an inclination of 6° with respect to the ecliptic.[1] In 1926, it was first identified as 1926 RH, extending the body's observation arc by 5 years prior to its official discovery observation.[13]

Rotation period

In September 2009, two rotational

U=1).[9]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite

albedo of 0.028 and 0.056.[4][5][6][7][8] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.03 and a diameter of 35.06 kilometers with an absolute magnitude of 11.7.[3]

Naming

This

References

  1. ^ a b c d "JPL Small-Body Database Browser: 1203 Nanna (1931 TA)" (2017-01-02 last obs.). Jet Propulsion Laboratory. Retrieved 13 February 2017.
  2. ^ .
  3. ^ a b c d e f "LCDB Data for (1203) Nanna". Asteroid Lightcurve Database (LCDB). Retrieved 13 February 2017.
  4. ^ .
  5. ^ )
  6. ^ . Retrieved 22 October 2019.
  7. ^ . Retrieved 13 February 2017.
  8. ^ . Retrieved 13 February 2017.
  9. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1203) Nanna". Geneva Observatory. Retrieved 13 February 2017.
  10. ^
    ISSN 1052-8091
    . Retrieved 13 February 2017.
  11. . Retrieved 13 February 2017.
  12. . Retrieved 13 February 2017.
  13. ^ a b "1203 Nanna (1931 TA)". Minor Planet Center. Retrieved 13 February 2017.

External links