1108 Demeter

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1108 Demeter
Discovery
U–B = 0.308[1]
11.91[1][4][7][8][9][11][12]
12.51[10] · 12.51±0.38[17]

1108 Demeter, provisional designation 1929 KA, is a dark

rotation period
of 9.846 hours.

Orbit and classification

Demeter is a non-

701), a large family of stony asteroids, different to Demeter's spectral type (see below).[4]

It orbits the Sun in the

semi-major axis of 2.43 AU). Its orbit has an eccentricity of 0.26 and an inclination of 25° with respect to the ecliptic.[1] The asteroid was first observed at the Italian Observatory of Turin, three days prior to its official discovery observation at Heidelberg. The body's observation arc begins at Yerkes Observatory in December 1930.[18]

Physical characteristics

In the

spectral type is ambiguous, closest to a carbonaceous C-type and somewhat similar to an X-type asteroid.[1][4]

Rotation period

In June 2016, a rotational

Stéphane Charbonnel from July 2001, which gave a period of 9.70 and 9.701 hours with an amplitude of 0.12 and 0.14 magnitude, respectively.[13][14]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite

albedo between 0.0229 and 0.05.[6][7][8][9][10][11][12]

The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0464 and a diameter of 25.61 kilometers based on an absolute magnitude of 11.91.[4]

Naming

This

H 104).[3]

Conflict with Ceres

Demeter is the Greek equivalent of the Roman goddess

1 Ceres was named, the Greeks called it "Demeter" effectively translating the name into Greek, rather than using the Latin Ceres or the original Italian Cerere. However, this created a problem when asteroid Demeter was named. The Greeks resolved this by using the classical form of the name, Δημήτηρ Dēmêtēr, for the new asteroid, distinguishing it from the Modern Greek form Δήμητρα Dêmētra that had been used for 1 Ceres. This conflict did not occur in Greek-influenced Slavic languages
such as Russian, which had adopted Cerera for 1 Ceres, and were thus free to use the modern Greek form Demetra for the asteroid Demeter.

References

  1. ^ a b c d e f g h "JPL Small-Body Database Browser: 1108 Demeter (1929 KA)" (2018-01-22 last obs.). Jet Propulsion Laboratory. Retrieved 8 March 2018.
  2. ^ "Demeter". Merriam-Webster.com Dictionary.
  3. ^ .
  4. ^ a b c d e f "LCDB Data for (1108) Demeter". Asteroid Lightcurve Database (LCDB). Retrieved 8 March 2018.
  5. ^ a b "Asteroid 1108 Demeter – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 28 October 2019.
  6. ^
    S2CID 119293330
    .
  7. ^ . Retrieved 8 March 2018.
  8. ^ . Retrieved 22 October 2019.
  9. ^ .
  10. ^ .
  11. ^ )
  12. ^ . Retrieved 8 March 2018.
  13. ^ . Retrieved 8 March 2018.
  14. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1108) Demeter". Geneva Observatory. Retrieved 8 March 2018.
  15. ^
    ISSN 1052-8091
    . Retrieved 8 March 2018.
  16. ^ . Retrieved 8 March 2018.
  17. . Retrieved 8 March 2018.
  18. ^ a b "1108 Demeter (1929 KA)". Minor Planet Center. Retrieved 8 March 2018.

External links