Astronomy:914 Palisana
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| Discovery | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 4 July 1919 |
| Designations | |
| (914) Palisana | |
| Pronunciation | /pælɪˈseɪnə/ |
| Named after | Johann Palisa (Austrian astronomer)[1] |
| 1919 FN · A904 PB A916 WC | |
| Minor planet category | main-belt · Phocaea [2] |
| Orbital characteristics [3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.07 yr (30,706 days) |
| |{{{apsis}}}|helion}} | 2.9857 AU |
| |{{{apsis}}}|helion}} | 1.9300 AU |
| 2.4578 AU | |
| Eccentricity | 0.2148 |
| Orbital period | 3.85 yr (1,407 days) |
| Mean anomaly | 71.191° |
| Mean motion | 0° 15m 20.88s / day |
| Inclination | 25.206° |
| Longitude of ascending node | 255.80° |
| 49.144° | |
| Physical characteristics | |
| Dimensions | 76 km[4] 76.61±1.7 km[5] 77.000±13.12 km[6] 91.2 km[2] 97.33±1.49 km[7] |
| Mass | (2.35 ± 0.24) × 1018 kg[8] |
| Mean density | 8.36 ± 1.85[8] g/cm3 |
| Rotation period | 15.922 h (0.6634 d) |
| Geometric albedo | 0.0943±0.004[5] 0.0666[2] 0.059±0.002[7] 0.0934±0.0376[6] |
| B–V = 0.741 U–B = 0.368 Tholen = CU [3][8] C [2] | |
| Absolute magnitude (H) | 8.76[3][2][5][7][6] 8.96±0.30[9] |
914 Palisana, provisional designation 1919 FN, is a Phocaean asteroid from the inner regions of the asteroid belt, approximately 77 kilometers in diameter. It was discovered by German astronomer Max Wolf at Heidelberg Observatory on 4 July 1919.[10]
Description
The carbonaceous asteroid is classified as a CU-type on the Tholen taxonomic scheme. It orbits the Sun at a distance of 1.9–3.0 AU once every 3 years and 10 months (1,407 days). Its orbit has an eccentricity of 0.21 and an inclination of 25° with respect to the ecliptic.[3]
Measurements using the adaptive optics at the W. M. Keck Observatory give a diameter estimate of 76 km. The size ratio between the major and minor axes is 1.16.[4] During 2004, the asteroid was observed occulting a star. The resulting chords were used to determine a diameter estimate of 91.2 km. This is a poor match to the diameter determined by other means.[11]
The minor planet is named after the Austrian astronomer Johann Palisa (1848–1925), who has discovered many asteroids himself between 1874 and 1923.[1]
References
- ↑ 1.0 1.1 Schmadel, Lutz D. (2007). "(914) Palisana". Dictionary of Minor Planet Names – (914) Palisana. Springer Berlin Heidelberg. p. 82. doi:10.1007/978-3-540-29925-7_915. ISBN 978-3-540-00238-3.
- ↑ 2.0 2.1 2.2 2.3 2.4 "LCDB Data for (914) Palisana". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=914%7CPalisana.
- ↑ 3.0 3.1 3.2 3.3 "JPL Small-Body Database Browser: 914 Palisana (1919 FN)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2000914.
- ↑ 4.0 4.1 Marchis, F. et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus 185 (1): 39–63, doi:10.1016/j.icarus.2006.06.001, PMID 19081813, PMC 2600456, Bibcode: 2006Icar..185...39M, http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006Icar..185...39M&link_type=EJOURNAL&db_key=AST&high=, retrieved 2013-03-27.
- ↑ 5.0 5.1 5.2 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode: 2004PDSS...12.....T. https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab. Retrieved 22 October 2019.
- ↑ 6.0 6.1 6.2 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D. et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M. Retrieved 30 August 2016.
- ↑ 7.0 7.1 7.2 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. doi:10.1093/pasj/63.5.1117. Bibcode: 2011PASJ...63.1117U. (online, AcuA catalog p. 153)
- ↑ 8.0 8.1 8.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73 (1): 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
- ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus 261: 34–47. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 30 August 2016.
- ↑ "914 Palisana (1919 FN)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=914.
- ↑ Shevchenko, Vasilij G.; Tedesco, Edward F. (September 2006), "Asteroid albedos deduced from stellar occultations", Icarus 184 (1): 211–220, doi:10.1016/j.icarus.2006.04.006, Bibcode: 2006Icar..184..211S.
External links
- Lightcurve plot of 914 Palisana, Palmer Divide Observatory, B. D. Warner (2008)
- 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
- 914 Palisana at AstDyS-2, Asteroids—Dynamic Site
- 914 Palisana at the JPL Small-Body Database
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