astro.wikisort.org - Asteroid1299 Mertona (prov. designation: 1934 BA) is a bright background asteroid from the central region of the asteroid belt. It was discovered on 18 January 1934, by French astronomer Guy Reiss at Algiers Observatory, Algeria, in northern Africa.[1] The likely stony asteroid with an unknown spectral type has a rotation period of 5.0 hours and measures approximately 14 kilometers (8.7 miles) in diameter. It was named after English astronomer Gerald Merton.[2]
1299 Mertona Modelled shape of Mertona, from its lightcurve |
|
Discovered by | G. Reiss |
---|
Discovery site | Algiers Obs. |
---|
Discovery date | 18 January 1934 |
---|
|
MPC designation | (1299) Mertona |
---|
Named after | Gerald Merton (English astronomer)[2] |
---|
Alternative designations | 1934 BA |
---|
Minor planet category | |
---|
|
Epoch 4 September 2017 (JD 2458000.5) |
Uncertainty parameter 0 |
Observation arc | 82.85 yr (30,260 days) |
---|
Aphelion | 3.3325 AU |
---|
Perihelion | 2.2706 AU |
---|
Semi-major axis | 2.8016 AU |
---|
Eccentricity | 0.1895 |
---|
Orbital period (sidereal) | 4.69 yr (1,713 days) |
---|
Mean anomaly | 328.61° |
---|
Mean motion | 0° 12m 36.72s / day |
---|
Inclination | 7.8754° |
---|
Longitude of ascending node | 165.61° |
---|
Argument of perihelion | 260.44° |
---|
|
Mean diameter | 14.140±0.322 km[6] 14.90±1.23 km[7] |
---|
Synodic rotation period | 4.977±0.003 h[8] |
---|
Pole ecliptic latitude | (73.0°, 35.0°) (λ1/β1)[5] |
---|
Geometric albedo | 0.219±0.038[7] 0.243±0.033[6] |
---|
Spectral type | unknown |
---|
Absolute magnitude (H) | 11.277±0.002 (R)[9] · 11.4[10][7] · 11.5[3][11] |
---|
|
Orbit and classification
Mertona is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[4][5] It orbits the Sun in the central main-belt at a distance of 2.3–3.3 AU once every 4 years and 8 months (1,713 days). Its orbit has an eccentricity of 0.19 and an inclination of 8° with respect to the ecliptic.[3] As neither precoveries nor prior identifications were obtained, Mertona's observation arc begins with its official discovery observation at Algiers.[1]
Naming
This minor planet was named after English astronomer Gerald Merton (1893–1983),[2] who was president of the British Astronomical Association between 1950 and 1952.[12] The naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 119).[2]
Physical characteristics
Rotation period
Several rotational lightcurves of Mertona were obtained during 2003–2016. Photometric observations were taken by astronomers Andy Monson and Steven Kipp (4.977±0.003 hours; Δ0.55 mag; U=3) in November 2003,[8] by French amateur astronomer René Roy (4.981±0.002 hours; Δ0.46 mag; U=3) in March 2005,[13] by astronomers at the Palomar Transient Factory (4.9787±0.0013 hours, Δ0.48 mag, U=2) in August 2012,[9] and by Daniel Klinglesmith (4.978±0.002 hours, Δ0.59 mag, U=3) at Etscorn Observatory (719) in Socorro, New Mexico.[14] In addition, a 2016-published lightcurve, modelling data from the Lowell photometric database, gave a concurring period of 4.97691±0.00001 hours and a spin axis of (73.0°, 35.0°) in ecliptic coordinates (U=n.a.).[15]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mertona measures between 14.14 and 14.90 kilometers in diameter, and its surface has an albedo between 0.219 and 0.243.[6][7] Although such a high albedo is typical for stony asteroids, the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.057, which it uses as the generic albedo for all carbonaceous C-type asteroids. It therefore calculates a larger diameter of 27.90 kilometers (as the lower the albedo or reflectivity, the larger a body's diameter at an unchanged absolute magnitude or brightness).[11] Carbonaceous asteroids are the predominant type in the outer main-belt, while stony asteroids are mostly found in the inner regions of the asteroid belt.
References
- "1299 Mertona (1934 BA)". Minor Planet Center. Retrieved 18 January 2017.
- Schmadel, Lutz D. (2007). "(1299) Mertona". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 107. doi:10.1007/978-3-540-29925-7_1300. ISBN 978-3-540-00238-3.
- "JPL Small-Body Database Browser: 1299 Mertona (1934 BA)" (2016-11-23 last obs.). Jet Propulsion Laboratory. Retrieved 7 July 2017.
- "Asteroid 1299 Mertona – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 16 March 2020.
- "Asteroid 1299 Mertona". Small Bodies Data Ferret. Retrieved 16 March 2020.
- Mainzer, A. K.; Bauer, J. M.; Cutri, R. M.; Grav, T.; Kramer, E. A.; Masiero, J. R.; et al. (June 2016). "NEOWISE Diameters and Albedos V1.0". NASA Planetary Data System. Bibcode:2016PDSS..247.....M. Retrieved 16 March 2020.
- 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)
- Monson, Andy; Kipp, Steven (December 2004). "Corrigendum: Rotational periods of asteroids 1165 Imprinetta, 1299 Mertona 1645 Waterfield, 1833 Shmakova, 2313 Aruna, and (13856) 1999 XZ105" (PDF). Minor Planet Bulletin. 31 (4): 97. Bibcode:2004MPBu...31...97M. ISSN 1052-8091. Retrieved 16 March 2020.
- 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 18 January 2017.
- 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.
- "LCDB Data for (1299) Mertona". Asteroid Lightcurve Database (LCDB). Retrieved 18 January 2017.
- British Astronomical Association List of Members, 1969 April 30, London: British Astronomical Association, 1969, p. 116
- Behrend, Raoul. "Asteroids and comets rotation curves – (1299) Mertona". Geneva Observatory. Retrieved 18 January 2017.
- Klinglesmith, Daniel A., III; Hanowell, Jesse; Risley, Ethan; Turk, Janek; Vargas, Angelica; Warren, Curtis Alan (July 2014). "Lightcurves for Inversion Model Candidates" (PDF). Minor Planet Bulletin. 41 (3): 139–143. Bibcode:2014MPBu...41..139K. ISSN 1052-8091. Retrieved 16 March 2020.
- Ďurech, J.; Hanuš, J.; Oszkiewicz, D.; Vančo, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics. 587: A48. arXiv:1601.02909. Bibcode:2016A&A...587A..48D. doi:10.1051/0004-6361/201527573. ISSN 0004-6361.
External links
Small Solar System bodies |
---|
Minor planets |
- Designation
- Groups
- List
- Moon
- Meanings of names
| Asteroid |
- Active
- Aten asteroid
- Asteroid belt
- Family
- Jupiter trojan
- Near-Earth
- Spectral types
|
---|
Distant minor planet |
- Cis-Neptunian object
- Damocloid
- Trans-Neptunian object
- Detached
- Kuiper belt
- Oort cloud
- Scattered disc
|
---|
|
---|
Comets |
- Extinct
- Great
- Halley-type
- Hyperbolic
- Long-period
- Lost
- Near-parabolic
- Periodic
- Sungrazing
|
---|
Other |
- Cosmic dust
- Meteoroids
- Space debris
|
---|
На других языках
[de] (1299) Mertona
(1299) Mertona ist ein Asteroid des Hauptgürtels, der am 18. Januar 1934 vom französischen Astronomen Guy Reiss in Algier entdeckt wurde.
- [en] 1299 Mertona
Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.
Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии