1677 Tycho Brahe
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 6 September 1940 |
| Designations | |
| MPC designation | 1677 Tycho Brahe |
Named after |
Tycho Brahe (astronomer)[2] |
|
1940 RO · 1928 SP 1935 FL · 1952 QN1 1952 SD1 · A916 UA | |
| main-belt · Eunomia [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.81 yr (29517 days) |
| Aphelion | 2.8023 AU (419.22 Gm) |
| Perihelion | 2.2612 AU (338.27 Gm) |
| 2.5318 AU (378.75 Gm) | |
| Eccentricity | 0.10685 |
| 4.03 yr (1471.4 d) | |
| 294.65° | |
| 0° 14m 40.776s / day | |
| Inclination | 14.855° |
| 337.92° | |
| 318.22° | |
| Earth MOID | 1.26447 AU (189.162 Gm) |
| Jupiter MOID | 2.52021 AU (377.018 Gm) |
| Jupiter Tisserand parameter | 3.396 |
| Physical characteristics | |
| Dimensions |
8.90±0.72 km[4] 11.686±0.116 km[5] 13.26 km (caculated)[3] |
| 3.89 h (0.162 d)[1][6] | |
|
0.466±0.090[4] 0.2277±0.0388[5] 0.21 (assumed)[3] | |
| S [3] | |
| 11.7 | |
|
| |
1677 Tycho Brahe, provisional designation 1940 RO, is a stony asteroid from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 6 September 1940.[7]
The S-type asteroid is a member of the Eunomia family, a large group of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.3–2.8 AU once every 4 years (1,472 days). Its orbit shows an eccentricity of 0.11 and is tilted by 15 degrees to the plane of the ecliptic. It has a rotation period of 3.89 hours[6] and an albedo of 0.23 and 0.47, according to different publications based on the WISE/NEOWISE mission.[4][5]
It is named for the great Danish-born astronomer Tycho Brahe (1546–1601) an early forerunner and father of modern astronomy. He is known for his unprecedented precise measurements in the pre-telescopic era. Brahe is also honored by the prominent crater Tycho in the southern highlands of the Moon and by the Martian cater Tycho Brahe.[2] The bright supernova, SN 1572, is also known as Tycho's Nova.
References
- 1 2 3 "JPL Small-Body Database Browser: 1677 Tycho Brahe (1940 RO)" (2015-06-13 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1677) Tycho Brahe. Springer Berlin Heidelberg. p. 133. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 4 "LCDB Data for (1677) Tycho Brahe". Asteroid Lightcurve Database (LCDB). Retrieved 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 November 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; 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 November 2015.
- 1 2 Violante, R.; Leake, M. A. (December 2012). "Photometry and Lightcurve Analysis of 7 Main-Belt Asteroids". Journal of the Southeastern Association for Research in Astronomy: 41–44. Bibcode:2012JSARA...7...41V. Retrieved November 2015.
- ↑ "1677 Tycho Brahe (1940 RO)". Minor Planet Center. Retrieved November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1677 Tycho Brahe at the JPL Small-Body Database
| ||||||
| ||||||||||||||||||||||||||||