astro.wikisort.org - Asteroid
1513 Mátra, provisional designation 1940 EB, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 10 March 1940, by Hungarian astronomer György Kulin at Konkoly Observatory in Budapest, Hungary.[8] It was later named after the Mátra mountain range.[2]
| Discovery[1] | |
|---|---|
| Discovered by | G. Kulin |
| Discovery site | Konkoly Obs. |
| Discovery date | 10 March 1940 |
| Designations | |
MPC designation | (1513) Matra |
Named after | Mátra (mountain range)[2] |
Alternative designations | 1940 EB · 1940 EO |
Minor planet category | main-belt · Flora[3] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.67 yr (24,351 days) |
| Aphelion | 2.4085 AU |
| Perihelion | 1.9763 AU |
Semi-major axis | 2.1924 AU |
| Eccentricity | 0.0986 |
Orbital period (sidereal) | 3.25 yr (1,186 days) |
Mean anomaly | 324.55° |
Mean motion | 0° 18m 12.96s / day |
| Inclination | 3.9773° |
Longitude of ascending node | 136.22° |
Argument of perihelion | 27.140° |
| Physical characteristics | |
| Dimensions | 4.96±0.70 km[4] 5.19±0.92 km[5] 5.85 km (calculated)[3] 6.603±0.271 km[6] |
Synodic rotation period | 24 h[7] |
Geometric albedo | 0.189±0.024[6] 0.24 (assumed)[3] 0.31±0.19[5] 0.34±0.13[4] |
Spectral type | S[3] |
Absolute magnitude (H) | 13.33[1][3][5][6] · 13.43[4] |
Orbit and classification
Mátra is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.4 AU once every 3 years and 3 months (1,186 days). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic.[1]
One day prior to Mátra's official discovery observation at Konkoly, a precovery was taken at Nice Observatory. However, the body's observation arc begins 10 years later in 1950, when it was observed at the La Plata Observatory in Argentina.[8]
Physical characteristics
Rotation period
American astronomer Richard P. Binzel obtained a rotational light-curve of Mátra from photometric observation in the 1980s. It gave a tentative rotation period of 24 hours with a brightness variation of 0.1 magnitude (U=1).[7] As of 2017, a secure period still has yet to be determined.[3]
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mátra measures between 4.96 and 6.60 kilometers in diameter and its surface has an albedo between 0.189 and 0.34.[4][5][6]
The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from the family's largest body and namesake, the asteroid 8 Flora – and calculates a diameter of 5.85 kilometers with an absolute magnitude of 13.33.[3]
Naming
This minor planet was named after the Mátra mountain range in northern Hungary, where the outstation of the discovering Konkoly Observatory is located.[2] The official naming citation was published by the Minor Planet Center on 1 February 1980 (M.P.C. 5182).[9]
References
- "JPL Small-Body Database Browser: 1513 Matra (1940 EB)" (2017-02-14 last obs.). Jet Propulsion Laboratory. Retrieved 5 June 2017.
- Schmadel, Lutz D. (2007). "(1513) Mátra". Dictionary of Minor Planet Names – (1513) Mátra. Springer Berlin Heidelberg. p. 120. doi:10.1007/978-3-540-29925-7_1514. ISBN 978-3-540-00238-3.
- "LCDB Data for (1513) Mátra". Asteroid Lightcurve Database (LCDB). Retrieved 4 January 2017.
- Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 4 January 2017.
- Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 4 January 2017.
- 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 4 January 2017.
- Binzel, R. P.; Mulholland, J. D. (December 1983). "A photoelectric lightcurve survey of small main belt asteroids". Icarus. 56 (3): 519–533. Bibcode:1983Icar...56..519B. doi:10.1016/0019-1035(83)90170-7. ISSN 0019-1035. Retrieved 4 January 2017.
- "1513 Matra (1940 EB)". Minor Planet Center. Retrieved 4 January 2017.
- "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 4 January 2017.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- 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
- 1513 Mátra at AstDyS-2, Asteroids—Dynamic Site
- 1513 Mátra at the JPL Small-Body Database
На других языках
[de] (1513) Mátra
(1513) Mátra ist ein Asteroid des Hauptgürtels, der am 10. März 1940 von dem ungarischen Astronomen György Kulin am Konkoly-Observatorium in Budapest entdeckt wurde.- [en] 1513 Mátra
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