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1481 Tübingia
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date7 February 1938
Designations
(1481) Tubingia
Named after
 Tübingen (German city) [2]
1938 DR · 1930 UL
1933 FT1 · 1933 FY1
1935 SY1 · 1938 CN
1938 ES · 1939 LD
1941 WF · 1950 OQ
1955 LA · 1959 GY
A907 GQ · A912 FB
main-belt · ( outer) [3]
Orbital characteristics [1]
Epoch 4 September 2017 ( JD 2458000.5)
Uncertainty parameter 0
Observation arc84.28 yr (30,783 days)
Aphelion3.1492 AU
Perihelion2.8896 AU
3.0194 AU
Eccentricity0.0430
5.25 yr (1,916 days)
283.84 °
0° 11m 16.44s / day
Inclination3.5098°
353.74°
312.18°
Physical characteristics
Dimensions33.26±1.7 km ( IRAS:5) [4]
33.770±0.139 km [5]
35.20±0.73 km [6]
37.316±0.332 km [7]
40.12±0.51 km [8]
24 h [9]
160±20 (outdated) [10]
0.082±0.002 [8]
0.0920±0.0143 [7]
0.104±0.020 [6] [5]
0.1167±0.013 ( IRAS:5) [4]
0.1168 (SIMPS) [3]
C [3]
B–V = 0.920 [1]
U–B = 0.370 [1]
10.34 [1] [4] [6] [8] · 10.35 [3] [7] [10] · 10.87±0.68 [11]

1481 Tübingia, provisional designation 1938 DR, is a dark asteroid from the outer region of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 7 February 1938, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany, and named for the German city of Tübingen. [12]

Orbit and classification

Tübingia orbits the Sun in the outer main-belt at a distance of 2.9–3.1  AU once every 5 years and 3 months (1,916 days). Its orbit has an eccentricity of 0.04 and an inclination of 4 ° with respect to the ecliptic. [1] It was first identified as A907 GQ at the U.S. Taunton Observatory in 1907. The asteroid's first used observation was made at Heidelberg in 1933, extending the body's observation arc by 5 years prior to its official discovery observation. [12]

Physical characteristics

The asteroid has been characterized as a C-type asteroid. [3]

Rotation period

In October 2008, a rotational lightcurve of Tübingia was obtained form photometric observations by James W. Brinsfield at Via Capote Observatory ( G69) in California. Analysis gave a longer-than average rotation period of 24 hours with a brightness variation of 0.20 magnitude ( U=2). [9] The result supersedes a much longer period obtained in the 1980s. [10]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Tübingia measures between 33.26 and 40.12 kilometers in diameter, and its surface has an albedo of 0.082 to 0.117. [4] [5] [6] [7] [8] The Collaborative Asteroid Lightcurve Link adopts the results from IRAS, that is, an albedo of 0.117 and a diameter of 33.26 kilometers using an absolute magnitude of 10.35. [3]

Naming

This minor planet was named after Tübingen, city in southern Germany and birthplace of astronomer Johannes Kepler. [2] The official naming citation was published by the Minor Planet Center in April 1953 ( M.P.C. 909). [13]

References

  1. ^ a b c d e f "JPL Small-Body Database Browser: 1481 Tubingia (1938 DR)" (2017-07-05 last obs.). Jet Propulsion Laboratory. Retrieved 25 July 2017.
  2. ^ a b Schmadel, Lutz D. (2007). "(1481) Tübingia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 118. doi: 10.1007/978-3-540-29925-7_1482. ISBN  978-3-540-00238-3.
  3. ^ a b c d e f "LCDB Data for (1481) Tübingia". Asteroid Lightcurve Database (LCDB). Retrieved 16 December 2016.
  4. ^ a b c d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode: 2004PDSS...12.....T. Retrieved 22 October 2019.
  5. ^ a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645. Bibcode: 2014ApJ...791..121M. doi: 10.1088/0004-637X/791/2/121. Retrieved 16 December 2016.
  6. ^ a b c d Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; 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 16 December 2016.
  7. ^ a b c d 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.
  8. ^ a b c d 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. ( online, AcuA catalog p. 153)
  9. ^ a b Brinsfield, James W. (April 2009). "Asteroid Lightcurve Analysis at the Via Capote Observatory: 2008 4th Quarter". The Minor Planet Bulletin. 36 (2): 64–66. Bibcode: 2009MPBu...36...64B. ISSN  1052-8091. Retrieved 16 December 2016.
  10. ^ a b c Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus. 72 (1): 135–208. Bibcode: 1987Icar...72..135B. doi: 10.1016/0019-1035(87)90125-4. ISSN  0019-1035. Retrieved 16 December 2016.
  11. ^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762. Bibcode: 2015Icar..261...34V. doi: 10.1016/j.icarus.2015.08.007. Retrieved 16 December 2016.
  12. ^ a b "1481 Tubingia (1938 DR)". Minor Planet Center. Retrieved 16 December 2016.
  13. ^ Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi: 10.1007/978-3-642-01965-4. ISBN  978-3-642-01964-7.

External links

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