756 Lilliana

756 Lilliana
Discovery [1]
Discovered byJoel Hastings Metcalf
Discovery siteTaunton, Massachusetts
Discovery date26 April 1908
Designations
(756) Lilliana
1908 DC [2]
main belt
Orbital characteristics [2][3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc101.86 yr (37203 d)
Aphelion3.66990 AU (549.009 Gm)
Perihelion2.71910 AU (406.772 Gm)
3.19450 AU (477.890 Gm)
Eccentricity0.148819
5.71 yr (2085.5 d)
281.138°
0° 10m 21.446s / day
Inclination20.3578°
208.088°
5.26073°
Physical characteristics
  • 35.75±0.7 km [2]
  • 35.75 ± 0.7 km (22.21 ± 0.43 mi)[4]
  • 9.361±0.002 h [5]
  • 7.834 h (0.3264 d) [2]
0.0500±0.002 [4]

756 Lilliana is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on 26 April 1908 from Taunton, Massachusetts. It rotates around its axis of rotation every 9.36 hours.[5][clarification needed]

Photometric observations of this asteroid at Palmer Divide Observatory in Colorado Springs, Colorado, during 2007 gave a light curve with a period of 9.262±0.001 hours and a brightness variation of 0.83±0.03 in magnitude.[7] A 2012 study based upon observations at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2012 produced a conflicting period of 7.834±0.001 hours and a brightness variation of 0.17±0.02 in magnitude. Further study will be needed to resolve the discrepancies in period and amplitude.[8]

References

  1. ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
  2. ^ a b c d e Yeomans, Donald K., "756 Lilliana", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
  3. ^ "(756) Lilliana". AstDyS. Italy: University of Pisa. Archived from the original on 26 May 2011. Retrieved 12 December 2008.
  4. ^ a b Tedesco; et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on 19 January 2007. Retrieved 7 January 2009.
  5. ^ a b Székely; Kiss, L; Szabo, G; Sarneczky, K; Csak, B; Varadi, M; Meszaros, S; et al. (2005). "CCD photometry of 23 minor planets". Planetary and Space Science. 53 (9): 925–936. arXiv:astro-ph/0504462. Bibcode:2005P&SS...53..925S. doi:10.1016/j.pss.2005.04.006. S2CID 119361591. web preprint
  6. ^ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 11 June 2008. Retrieved 7 January 2009.
  7. ^ Warner, Brian D. (June 2008), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory – June–October 2007", The Minor Planet Bulletin, 35 (2): 56–60, Bibcode:2008MPBu...35...56W.
  8. ^ Pilcher, Frederick (October 2012), "Rotation Period Determinations for 47 Aglaja, 252 Clementina, 611 Valeria, 627 Charis, and 756 Lilliana", Minor Planet Bulletin, 39 (4): 220–222, Bibcode:2012MPBu...39..220P.


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