619 Triberga

619 Triberga is a main belt asteroid discovered on 22 October 1906 by August Kopff at Heidelberg-Königstuhl State Observatory.[1] Since it has an orbit that repeats itself almost exactly every four years with respect to the position of the Sun and Earth, it has been suggested as a way to calculate the mass of the Moon.[8] Triberga was named for the German town of Triberg.[9]

619 Triberga
Discovery [1]
Discovered byAugust Kopff
Discovery siteHeidelberg Obs.
Discovery date22 October 1906
Designations
(619) Triberga
Named after
Triberg im Schwarzwald
1906 WC
Main belt [2]
Orbital characteristics [2][3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc109.47 yr (39985 d)
Aphelion2.7084 AU (405.17 Gm)
Perihelion2.3342 AU (349.19 Gm)
2.5213 AU (377.18 Gm)
Eccentricity0.074209
4.00 yr (1462.3 d)
188.954°
0° 14m 46.284s / day
Inclination13.799°
187.484°
178.250°
Physical characteristics
Mean diameter
43 km
  • 26.311 h[2]
  • 29.37±0.06 h[4]
  • 29.412±0.003 h [5]
S [6]
9.95 [7]

    Since it has an absolute magnitude of 9.9, it is roughly 43 km in diameter. It has an opposition apparent magnitude of 13.5.

    References
    1. "Discovery Circumstances: Numbered Minor Planets (1)–(5000)". IAU: Minor Planet Center. Archived from the original on 2 February 2009. Retrieved 21 December 2008.
    2. "619 Triberga (1906 WC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
    3. "(619) Triberga". AstDyS. Italy: University of Pisa. Archived from the original on 26 May 2011. Retrieved 21 December 2008.
    4. Oliver; Shipley, Heath; Ditteon, Richard; et al. (2008). "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2008 March". The Minor Planet Bulletin. 35 (4): 149–150. Bibcode:2008MPBu...35..149O.
    5. Pray (2006). "Lightcurve analysis of asteroids 326, 329, 426, 619, 1829, 1967, 2453, 10518 and 42267". The Minor Planet Bulletin. 33 (1): 4–5. Bibcode:2006MPBu...33....4P.
    6. Neese (2005). "Asteroid Taxonomy". EAR-A-5-DDR-TAXONOMY-V5.0. Planetary Data System. Archived from the original on 17 January 2010. Retrieved 26 December 2008.
    7. Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 17 June 2012. Retrieved 26 December 2008.
    8. Brouwer, Dirk & Ashbrook, Joseph (1951). "The minor planet 619 Triberga and the mass of the moon". The Astronomical Journal. 56 (3): 57–58. Bibcode:1951AJ.....56...57B. doi:10.1086/106513.
    9. Schmadel, Lutz (2003). Dictionary of minor planet names (fifth ed.). Germany: Springer. p. 62. ISBN 3-540-00238-3. Retrieved 26 December 2008.


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