1947 Iso-Heikkilä
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 4 March 1935 |
| Designations | |
| MPC designation | 1947 Iso-Heikkilä |
Named after |
Iso-Heikkilä (location)[2] |
| 1935 EA | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.74 yr (29490 days) |
| Aphelion | 3.2706 AU (489.27 Gm) |
| Perihelion | 3.0382 AU (454.51 Gm) |
| 3.1544 AU (471.89 Gm) | |
| Eccentricity | 0.036829 |
| 5.60 yr (2046.3 d) | |
| 93.640° | |
| 0° 10m 33.312s / day | |
| Inclination | 11.910° |
| 90.926° | |
| 143.70° | |
| Earth MOID | 2.03109 AU (303.847 Gm) |
| Jupiter MOID | 1.7913 AU (267.97 Gm) |
| Jupiter Tisserand parameter | 3.172 |
| Physical characteristics | |
| Dimensions |
29.44±1.7 km[1] 30.72±0.86 km[4] 31.61±0.81 km[5] 29.20 km (derived)[3] |
Mean radius | 14.72 ± 0.85 km |
| 5.0158 h (0.20899 d)[1][6] | |
|
0.0976 0.091±0.006[4] 0.049±0.009[5] 0.0571 (derived)[3] 0.0976 ± 0.012[1] | |
| C [3] | |
| 11.4[1] | |
|
| |
1947 Iso-Heikkilä, provisional designation 1935 EA, is a dark, carbonaceous asteroid from the outer region of the asteroid belt, about 29 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Iso-Heikkilä Observatory on 4 March 1935.[7]
The C-type asteroid orbits the Sun at a distance of 3.0–3.3 AU once every 5.60 years (2,046 days). It has a rotation period of 5.016 hours.[6] It has an albedo of 0.06, according to the Light Curve Database project.[3]
It is named for the farm, located in the Iso-Heikkilä district and owned by Turku University. It became the site of the Turku Observatory, which is also called Iso-Heikkilä Observatory, in Finnish: Iso-Heikkilän tähtitorni. The discovery of minor planet 1947 Iso-Heikkilä in 1935 was the first one made by the observatory.[2]
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 1947 Iso-Heikkila (1935 EA)" (2015-10-16 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1947) Iso-Heikkilä. Springer Berlin Heidelberg. p. 156. ISBN 978-3-540-29925-7. Retrieved 7 November 2015.
- 1 2 3 4 5 "LCDB Data for (1947) Iso-Heikkila". Asteroid Lightcurve Database (LCDB). Retrieved 7 November 2015.
- 1 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. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 7 November 2015.
- 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794
. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 7 November 2015. - 1 2 Galád, A. (May 2010). "Accuracy of calibrated data from the SDSS moving object catalog, absolute magnitudes, and probable lightcurves for several asteroids". Astronomy and Astrophysics. 514: 10. Bibcode:2010A&A...514A..55G. doi:10.1051/0004-6361/201014029. Retrieved 7 November 2015.
- ↑ "1947 Iso-Heikkila (1935 EA)". Minor Planet Center. Retrieved 7 November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- 1947 Iso-Heikkilä at the JPL Small-Body Database
