1681 Steinmetz
| Discovery [1] | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Observatory |
| Discovery date | 23 November 1948 |
| Designations | |
| MPC designation | 1681 Steinmetz |
Named after |
Julius Steinmetz (amateur astronomer)[2] |
|
1948 WE · 1926 YA 1936 BE · 1939 VC 1945 ED · 1957 YH 1958 AE · A914 DB | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 102.05 yr (37274 days) |
| Aphelion | 3.2487 AU (486.00 Gm) |
| Perihelion | 2.1483 AU (321.38 Gm) |
| 2.6985 AU (403.69 Gm) | |
| Eccentricity | 0.20389 |
| 4.43 yr (1619.1 d) | |
| 35.549° | |
| 0° 13m 20.424s / day | |
| Inclination | 7.2037° |
| 94.437° | |
| 1.8382° | |
| Earth MOID | 1.16476 AU (174.246 Gm) |
| Jupiter MOID | 1.94772 AU (291.375 Gm) |
| Jupiter Tisserand parameter | 3.327 |
| Physical characteristics | |
| Dimensions |
14.58±0.75 km[4] 16.16±0.34 km[5] 20.49 km (calculated)[3] |
| 8.99917 h (0.374965 d)[1][6] | |
|
0.204±0.024[4] 0.161±0.041[5] 0.10 (assumed)[3] | |
|
B–V = 0.878 U–B = 0.447 Tholen = S S [3] | |
| 11.56 | |
|
| |
1681 Steinmetz, provisional designation 1948 WE, is a stony asteroid from the middle region of the asteroid belt, about 16 kilometers in diameter. It was discovered on 23 November 1948 by French female astronomer Marguerite Laugier at Nice Observatory in south-eastern France.[7]
The S-type asteroid orbits the Sun at a distance of 2.1–3.2 AU once every 4 years and 5 months (1,618 days). Its orbit shows an eccentricity of 0.20 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 9.0 hours[6] and an albedo of 0.16–0.20, according to Akari and WISE/NEOWISE, while the Lightcurve Datatbase project assumes a somewhat lower albedo of 0.10.[3][4][5]
According to a proposal by Otto Kippes, who verified the discovery, it was named after Julius Steinmetz (1893–1965), a German amateur astronomer, orbit computer, and pastor from Gerolfingen in Bavaria.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1681 Steinmetz (1948 WE)" (2015-10-11 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1681) Steinmetz. Springer Berlin Heidelberg. p. 134. ISBN 978-3-540-29925-7. Retrieved 11 November 2015.
- 1 2 3 4 5 "LCDB Data for (1681) Steinmetz". Asteroid Lightcurve Database (LCDB). Retrieved 11 November 2015.
- 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; 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 11 November 2015.
- 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; et al. (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 11 November 2015. - 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1681) Steinmetz". Geneva Observatory. Retrieved 11 November 2015.
- ↑ "1681 Steinmetz (1948 WE)". Minor Planet Center. Retrieved 11 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
- 1681 Steinmetz at the JPL Small-Body Database
