1677 Tycho Brahe

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°
 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. 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.
    2. 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.
    3. 1 2 3 4 "LCDB Data for (1677) Tycho Brahe". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 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.
    5. 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.
    6. 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.
    7. "1677 Tycho Brahe (1940 RO)". Minor Planet Center. Retrieved November 2015.

    External links


    This article is issued from Wikipedia - version of the Friday, April 22, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.