756 Lilliana
| Discovery [1] | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 26 April 1908 |
| Designations | |
| MPC designation | 756 |
| 1908 DC [2] | |
| main belt | |
| Orbital characteristics [2][3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 101.86 yr (37203 d) |
| Aphelion | 3.66990 AU (549.009 Gm) |
| Perihelion | 2.71910 AU (406.772 Gm) |
| 3.19450 AU (477.890 Gm) | |
| Eccentricity | 0.148819 |
| 5.71 yr (2085.5 d) | |
| 281.138° | |
| 0° 10m 21.446s / day | |
| Inclination | 20.3578° |
| 208.088° | |
| 5.26073° | |
| Earth MOID | 1.71376 AU (256.375 Gm) |
| Jupiter MOID | 1.29622 AU (193.912 Gm) |
| Jupiter Tisserand parameter | 3.082 |
| Physical characteristics | |
Mean radius |
35.75±0.7 km [2] 35.75 ± 0.7 km (22.21 ± 0.43 mi)[4] |
|
9.361 ± 0.002 hours [5] 7.834 h (0.3264 d) [2] | |
| 0.0500 ± 0.002 [4] | |
|
9.6 [6] 9.9 [2] | |
|
| |
756 Lilliana is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on April 26, 1908 from Taunton, Massachusetts. It rotates around its axis of rotation every 9.3 hours.[5]
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
- ↑ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 2013-04-07.
- 1 2 3 4 5 Yeomans, Donald K., "756 Lilliana", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
- ↑ "(756) Lilliana". AstDyS. Italy: University of Pisa. Retrieved December 12, 2008.
- 1 2 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 January 17, 2010. Retrieved January 7, 2009.
- 1 2 Székely; Kiss, L; Szabo, G; Sarneczky, K; Csak, B; Varadi, M; Meszaros, S; et al. (2005). "CCD photometry of 23 minor planets" (abstract). 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. web preprint - ↑ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on June 17, 2012. Retrieved January 7, 2009.
- ↑ Warner, Brian D. (June 2008), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - June - October 2007", The Minor Planet Bulletin, 35 (2), pp. 56–60, Bibcode:2008MPBu...35...56W.
- ↑ Pilcher, Frederick (October 2012), "Rotation Period Determinations for 47 Aglaja, 252 Clementina, 611 Valeria, 627 Charis, and 756 Lilliana", Minor Planet Bulletin, 39, pp. 220–222, Bibcode:2012MPBu...39..220P.
External links
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