1169 Alwine

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1169 Alwine
Discovery [1]
Discovered by M. F. Wolf
M. Ferrero
Discovery site Heidelberg Obs.
Discovery date 30 August 1930
Designations
MPC designation (1169) Alwine
Named after
unknown[2]
1930 QH · 1937 VH
1955 SK1 · 1955 SR1
main-belt · (inner)
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 85.64 yr (31,279 days)
Aphelion 2.6770 AU
Perihelion 1.9613 AU
2.3191 AU
Eccentricity 0.1543
3.53 yr (1,290 days)
100.10°
0° 16m 44.76s / day
Inclination 4.0493°
255.11°
177.22°
Physical characteristics
Dimensions 7.893±0.185 km[3]
0.179±0.024[3]
12.8[1]

1169 Alwine, provisional designation 1930 QH, is an asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1930, by German and Italian astronomers Max Wolf and Mario Ferrero at Heidelberg Observatory in southwest Germany.[4]

Alwine orbits the Sun at a distance of 2.0–2.7 AU once every 3 years and 6 months (1,290 days). Its orbit has an eccentricity of 0.15 and an inclination of 4° with respect to the ecliptic.[1] As no precoveries were taken, and no prior identifications were made, Alwine's observation arc begins with its official discovery observation at Heidelberg in 1930.[4]

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Alwine measures 7.89 kilometers in diameter, and its surface has an albedo of 0.179.[3] Based on a generic magnitude-to-diameter conversion, its diameter is between 7 and 17 kilometers for an absolute magnitude of 12.8 and an albedo in the range of 0.05 to 0.25.[5] As of 2017, no rotational lightcurves have been obtained. The body's rotation period, pole and shape remain unknown.[6]

This minor planet is named after a common German female name. Any reference of this name to a person or occurrence is unknown.[2]

References[edit]

  1. ^ a b c d "JPL Small-Body Database Browser: 1169 Alwine (1930 QH)" (2016-04-19 last obs.). Jet Propulsion Laboratory. Retrieved 1 February 2017. 
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1169) Alwine. Springer Berlin Heidelberg. p. 98. ISBN 978-3-540-00238-3. Retrieved 1 February 2017. 
  3. ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096Freely accessible. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 1 February 2017. 
  4. ^ a b "1169 Alwine (1930 QH)". Minor Planet Center. Retrieved 1 February 2017. 
  5. ^ "Absolute Magnitude (H)". NASA/JPL. Retrieved 1 February 2017. 
  6. ^ "LCDB Data for (1169) Alwine". Asteroid Lightcurve Database (LCDB). Retrieved 1 February 2017. 

External links[edit]