1536 Pielinen: Difference between revisions
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|publisher=Geneva Observatory |
|publisher=Geneva Observatory |
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|url=http://obswww.unige.ch/~behrend/page4cou.html#001536 |
|url=http://obswww.unige.ch/~behrend/page4cou.html#001536 |
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|accessdate=November 2015}}</ref> |
|accessdate=25 November 2015}}</ref> |
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<ref name="lcdb">{{cite web |
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|publisher=Asteroid Lightcurve Database (LCDB) |
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|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1536%7CPielinen |
|url=http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1536%7CPielinen |
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|accessdate=November 2015}}</ref> |
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<ref name="jpldata">{{cite web |
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|date=2003 |
|date=2003 |
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|isbn=978-3-540-29925-7 |
|isbn=978-3-540-29925-7 |
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|accessdate=November 2015}}</ref> |
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<ref name="MPC-Pielinen">{{cite web |
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|work=Minor Planet Center |
|work=Minor Planet Center |
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|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=1536 |
|url=http://www.minorplanetcenter.net/db_search/show_object?object_id=1536 |
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|accessdate=November 2015}}</ref> |
|accessdate=25 November 2015}}</ref> |
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<ref name="WISE">{{cite journal |
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|bibcode = 2011ApJ...741...90M |
|bibcode = 2011ApJ...741...90M |
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|doi = 10.1088/0004-637X/741/2/90 |
|doi = 10.1088/0004-637X/741/2/90 |
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|access-date= November 2015|arxiv = 1109.6407 }}</ref> |
|access-date= 25 November 2015|arxiv = 1109.6407 }}</ref> |
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Revision as of 23:32, 11 August 2016
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 18 September 1939 |
| Designations | |
| 1536 Pielinen | |
Named after | Pielinen (lake)[2] |
| 1939 SE · 1929 RZ 1931 ED · 1934 CW 1939 TP · 1939 UK 1952 RW · A903 SF A916 RA | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 112.55 yr (41109 days) |
| Aphelion | 2.6348 AU (394.16 Gm) |
| Perihelion | 1.7755 AU (265.61 Gm) |
| 2.2051 AU (329.88 Gm) | |
| Eccentricity | 0.19485 |
| 3.27 yr (1196.1 d) | |
| 175.60° | |
| 0° 18m 3.564s / day | |
| Inclination | 1.5328° |
| 195.68° | |
| 170.60° | |
| Earth MOID | 0.772805 AU (115.6100 Gm) |
| Jupiter MOID | 2.81861 AU (421.658 Gm) |
| TJupiter | 3.636 |
| Physical characteristics | |
| Dimensions | 7.934±0.037 km[4] 7.82 km (calculated)[3] |
| 66.22 h (2.759 d)[a][1] 66.34±0.02 h[a] 67.43±0.06 h[5] | |
| 0.2557±0.0662[4] 0.24 (assumed)[3] | |
| S [3] | |
| 12.7 | |
1536 Pielinen, provisional designation 1939 SE, is a stony asteroid from the inner regions of the asteroid belt, about 8 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory, Southwest Finland, on 18 September 1939.[6]
The asteroid is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 1.8–2.6 AU once every 3 years and 3 months (1,195 days). Its orbit shows an eccentricity of 0.19 and is tilted by 2 degrees to the plane of the ecliptic. Its relatively long rotation period of 66 to 67 hours has been measured several times.[a][5] Based on the survey carried out by the WISE/NEOWISE mission, it has an albedo of 0.26.[4] The Collaborative Asteroid Lightcurve Link (CALL) assumes a similar value of 0.24.[3]
The minor planet is named after Pielinen, Finland's fourth largest lake in Finnish Karelia. The Koli National Park is located on its western shores.[2]
References
- ^ a b c Pravec (2011) web: rotation period 66.22 hours with a brightness amplitude of 0.85 mag, and Stephens (2011) web: rotation period 66.34±0.02 hours with a brightness amplitude of 0.8 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1536) Pielinen
- ^ a b c "JPL Small-Body Database Browser: 1536 Pielinen (1939 SE)" (2015-10-23 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
- ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1536) Pielinen. Springer Berlin Heidelberg. p. 122. ISBN 978-3-540-29925-7. Retrieved 25 November 2015.
- ^ a b c d e "LCDB Data for (1536) Pielinen". Asteroid Lightcurve Database (LCDB). Retrieved 25 November 2015.
- ^ a b c 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. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 25 November 2015.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1536) Pielinen". Geneva Observatory. Retrieved 25 November 2015.
- ^ "1536 Pielinen (1939 SE)". Minor Planet Center. Retrieved 25 November 2015.
External links
- 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
- 1536 Pielinen at the JPL Small-Body Database
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