1798 Watts

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1798 Watts
Discovery
SMASS = S[1] · LS[8] · S[3]
12.8[7] · 12.9[1][3][5] · 13.05±0.17[8]

1798 Watts, provisional designation 1949 GC, is a stony asteroid and binary system from the inner regions of the asteroid belt, approximately 7 kilometers in diameter.

It was discovered on 4 April 1949, by

IU's Indiana Asteroid Program at Goethe Link Observatory near Brooklyn, Indiana, United States.[9] The asteroid was named for American astronomer Chester Burleigh Watts.[2] Its small minor-planet moon has a period
of 26.96 hours.

Orbit and classification

Watts is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,192 days). Its orbit has an eccentricity of 0.12 and an inclination of 6° with respect to the ecliptic.[1] Watts was first observed and identified as 1934 VS at Yerkes Observatory in 1934, extending the body's observation arc by 15 years prior to its official discovery observation.[9]

Physical characteristics

Spectral type

In the

PanSTARRS's photometric survey.[8]

Diameter and albedo

According to the survey carried out by NASA's

albedo between 0.276 and 0.294.[5][6][7] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this asteroid family – and calculates a diameter of 7.14 kilometers with an absolute magnitude of 12.9.[3]

Moon and lightcurve

In February 2017, a rotational

U=n.a.
). [a]

During the photometric observations, a minor-planet moon was discovered, making Watts a binary asteroid. The satellite of the synchronous binary has an orbital period of 26.96 hours.[4][a]

Naming

This

M.P.C. 3508).[10]

Notes

  1. ^ a b c D. Pray (2017), photometry for (1798) Watts at Collaborative Asteroid Lightcurve Link (CALL). Currently 2017CBET.4374....1P is missing on the SAO/NASA Astrophysics Data System (ADS)

References

  1. ^ a b c d e f "JPL Small-Body Database Browser: 1798 Watts (1949 GC)" (2017-04-30 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f "LCDB Data for (1798) Watts". Asteroid Lightcurve Database (LCDB). Retrieved 19 December 2016.
  4. ^ a b Johnston, Robert (19 March 2017). "(1798) Watts". johnstonsarchive.net. Retrieved 8 June 2017.
  5. ^
    doi:10.1088/2041-8205/759/1/L8
    . Retrieved 19 December 2016.
  6. ^
    doi:10.1088/0004-637X/791/2/121
    . Retrieved 19 December 2016.
  7. ^
    doi:10.1088/0004-637X/741/2/90
    .
  8. ^
    doi:10.1016/j.icarus.2015.08.007
    . Retrieved 19 December 2016.
  9. ^ a b "1798 Watts (1949 GC)". Minor Planet Center. Retrieved 19 December 2016.
  10. ISBN 978-3-642-01964-7
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=1798_Watts&oldid=1222552910"