6349 Acapulco
| Discovery [1] | |
|---|---|
| Discovered by | M. Koishikawa |
| Discovery site | Sendai Astronomical Observatory (Ayashi Station) |
| Discovery date | 8 February 1995 |
| Designations | |
| (6349) Acapulco | |
Named after | Acapulco (sister city)[2] |
| 1995 CN1 · 1947 EC 1973 AH4 · 1973 CL 1988 SA1 | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 69.65 yr (25,441 days) |
| Aphelion | 3.0398 AU |
| Perihelion | 2.2937 AU |
| 2.6668 AU | |
| Eccentricity | 0.1399 |
| 4.35 yr (1,591 days) | |
| 338.26° | |
| 0° 13m 34.68s / day | |
| Inclination | 10.790° |
| 328.12° | |
| 236.58° | |
| Physical characteristics | |
| Dimensions | 12.35 km (calculated)[3] 19.24±1.2 km (IRAS:5)[1] 20.429±0.206 km[4][5] 22.69±0.56 km[6] |
| 4.3755±0.0020 h[7] | |
| 0.0377±0.0066[4] 0.045±0.005[6][5] 0.0757±0.010 (IRAS:5)[1] 0.10 (assumed)[3] | |
| S [3] | |
| 12.3[1] · 12.66[3] · 12.2[4][6] · 12.209±0.001 (R)[7] · 12.18±0.54[8] | |
6349 Acapulco, provisional designation 1995 CN1, is a asteroid from the middle region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 8 February 1995, by Japanese astronomer Masahiro Koishikawa at the Ayashi Station of the Sendai Astronomical Observatory in the Tōhoku region of Japan.[9]
The asteroid orbits the Sun at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,591 days). Its orbit has an eccentricity of 0.14 and an inclination of 11° with respect to the ecliptic.[1] The first used precovery was taken at Palomar Observatory in 1953, extending the asteroid's observation arc by 42 years prior to its discovery.[9]
A rotational light-curve of this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in September 2010. The light-curve gave a rotation period of 4.3755±0.0020 hours with a brightness amplitude of 0.18 in magnitude (U=2).[7] According to the surveys carried out by the Infrared Astronomical Satellite IRAS, as well as NASA's Wide-field Infrared Survey Explorer with its following NEOWISE mission, the asteroid measures between 19.2 and 22.7 kilometers in diameter, and its surface has an albedo in the range of 0.037 to 0.076.[1][4][6] The Collaborative Asteroid Lightcurve Link, however, classifies it as a S-type asteroid, assumes a higher albedo of 0.10, and hence calculates a smaller diameter of 12.4 kilometers.[3]
The minor planet is named for the Mexican city of Acapulco, known for its major seaport, which is considered to be among the most beautiful ones in the world. Since 1973, Acapulco is the sister city of the Japanese city of Sendai, where the discovering observatory is located, and after which the minor planet 3133 Sendai is named. Hasekura Tsunenaga (1571–1622) – retainer of Date Masamune, who founded the city of Sendai – stopped by at Acapulco on his diplomatic mission to Rome.[2] Naming citation was published on 2 February 1999 (M.P.C. 33787).[10]
References
- ^ a b c d e f g "JPL Small-Body Database Browser: 6349 Acapulco (1995 CN1)" (2016-11-05 last obs.). Jet Propulsion Laboratory. Retrieved 5 December 2016.
- ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (6349) Acapulco. Springer Berlin Heidelberg. p. 526. ISBN 978-3-540-00238-3. Retrieved 27 April 2016.
- ^ a b c d e f "LCDB Data for (6349) Acapulco". Asteroid Lightcurve Database (LCDB). Retrieved 27 April 2016.
- ^ 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. Retrieved 27 April 2016.
- ^ a b Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 5 December 2016.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ 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 11 January 2016.
- ^ a b c Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 27 April 2016.
- ^ 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 27 April 2016.
- ^ a b "6349 Acapulco (1995 CN1)". Minor Planet Center. Retrieved 27 April 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 27 April 2016.
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 (5001)-(10000) – Minor Planet Center
- 6349 Acapulco at the JPL Small-Body Database
