Astronomy:756 Lilliana
| Discovery [1] | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 26 April 1908 |
| Designations | |
| (756) Lilliana | |
| 1908 DC [2] | |
| Minor planet category | main belt |
| Orbital characteristics [2][3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 101.86 yr (37203 d) |
| |{{{apsis}}}|helion}} | 3.66990 astronomical unit|AU (549.009 Gm) |
| |{{{apsis}}}|helion}} | 2.71910 AU (406.772 Gm) |
| 3.19450 AU (477.890 Gm) | |
| Eccentricity | 0.148819 |
| Orbital period | 5.71 yr (2085.5 d) |
| Mean anomaly | 281.138° |
| Mean motion | 0° 10m 21.446s / day |
| Inclination | 20.3578° |
| Longitude of ascending node | 208.088° |
| 5.26073° | |
| Physical characteristics | |
| Mean radius | |
| Rotation period | |
| Geometric albedo | 0.0500±0.002 [4] |
| Absolute magnitude (H) | |
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
- ↑ "Numbered Minor Planets 1–5000", Discovery Circumstances (IAU Minor Planet center), https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html, retrieved 2013-04-07.
- ↑ 2.0 2.1 2.2 2.3 2.4 Yeomans, Donald K., "756 Lilliana", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=756, retrieved 5 May 2016.
- ↑ "(756) Lilliana". AstDyS. Italy: University of Pisa. https://newton.spacedys.com/astdys/index.php?pc=1.1.0&n=756.
- ↑ 4.0 4.1 Tedesco (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. http://www.psi.edu/pds/resource/imps.html.
- ↑ 5.0 5.1 Székely et al. (2005). "CCD photometry of 23 minor planets". Planetary and Space Science 53 (9): 925–936. doi:10.1016/j.pss.2005.04.006. Bibcode: 2005P&SS...53..925S. web preprint
- ↑ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0.. Planetary Data System. http://www.psi.edu/pds/resource/astermag.html.
- ↑ 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.
- ↑ 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.
External links
- Lightcurve plot of 756 Lilliana, Palmer Divide Observatory, B. D. Warner (2007)
- Asteroid Lightcurve Database (LCDB), query form (info )
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)–(5000) – Minor Planet Center
- 756 Lilliana at AstDyS-2, Asteroids—Dynamic Site
- 756 Lilliana at the JPL Small-Body Database
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