842 Kerstin

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842 Kerstin
lightcurve
Discovery [1]
Discovered byM. F. Wolf
Discovery siteHeidelberg Obs.
Discovery date1 October 1916
Designations
(842) Kerstin
PronunciationGerman: [ˈkɛʁstiːn][2]
Named after
unknown [3]
A916 TB · 1916 AM
Perihelion
2.8597 AU
3.2368 AU
Eccentricity0.1165
5.82 yr (2,127 d)
350.44°
0° 10m 9.48s / day
Inclination14.496°
5.4008°
352.49°
Physical characteristics
Mean diameter
Synodic rotation period
18.716±0.002 h[11]
(18.0°, 78.0°) (λ1/β1)[11][12]
  • 0.041±0.009[9]
  • 0.050±0.004[8]
  • 0.0552±0.009[7]
C (assumed)[12]

842 Kerstin (

rotation period of 18.7 hours and measures approximately 41 kilometers (25 miles) in diameter. Any reference of the origin of the asteroid's name is unknown.[3]

Orbit and classification

Kerstin is a non-

Heidelberg Observatory with its official discovery observation on 1 October 1916.[1]

Naming

"Kerstin" is a German feminine first name. Any reference of this name to a person or occurrence is unknown.[3]

Unknown meaning

Among the many thousands of

Karl Reinmuth.[13]

Physical characteristics

Kerstin is an assumed

astronomical albedo (see below) comparable to fresh asphalt.[12]

Rotation period

In 2018, Czech astronomers

U=2), and gave a spin axis at (18.0°, 78.0°) in ecliptic coordinates (λ, β).[11][12]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite

albedo of (0.0552±0.009), (0.050±0.004) and (0.041±0.009), respectively.[7][8][9][10] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 42.23 kilometers based on an absolute magnitude of 10.6.[12] Alternative mean-diameter measurements published by the WISE team include (36.87±11.73 km), (38.53±14.48 km), (44.602±0.680 km) and (45.536±0.186 km) with corresponding albedos of (0.06±0.04), (0.06±0.07), (0.051±0.005) and (0.0408±0.0082).[6][12]

References

  1. ^ a b c d e "842 Kerstin (A916 TB)". Minor Planet Center. Retrieved 8 March 2020.
  2. ^ (German Names)
  3. ^
    ISBN 978-3-540-00238-3
    .
  4. ^ a b c d "JPL Small-Body Database Browser: 842 Kerstin (A916 TB)" (2019-11-14 last obs.). Jet Propulsion Laboratory. Archived from the original on 19 September 2020. Retrieved 8 March 2020.
  5. ^ a b "Asteroid 842 Kerstin – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 8 March 2020.
  6. ^ a b c "Asteroid 842 Kerstin". Small Bodies Data Ferret. Retrieved 8 March 2020.
  7. ^
    Bibcode:2004PDSS...12.....T
    . Retrieved 7 March 2020.
  8. ^
    doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153
    )
  9. ^
    Bibcode:2016PDSS..247.....M
    . Retrieved 8 March 2020.
  10. ^
    doi:10.1088/0004-637X/791/2/121
    .
  11. ^
    ISSN 0004-6361
    .
  12. ^ a b c d e f "LCDB Data for (842) Kerstin". Asteroid Lightcurve Database (LCDB). Retrieved 8 March 2020.
  13. ISBN 978-3-540-00238-3
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=842_Kerstin&oldid=1195668626"