3367 Alex
Template:Short description Template:DMCA
Page Module:Infobox/styles.css has no content.
| Discovery[1] | |
|---|---|
| Discovered by | N. G. Thomas |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 15 February 1983 |
| Designations | |
Named after | Alex R. Baltutis (discoverer's grandson)[2] |
| Template:Mp · 1953 XM Template:Mp · Template:Mp Template:Mp | |
| main-belt · (middle)[3] background | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 63.42 yr (23,165 days) |
| Aphelion | 2.9767 AU |
| Perihelion | 2.5915 AU |
| 2.7841 AU | |
| Eccentricity | 0.0692 |
| 4.65 yr (1,697 days) | |
| 180.67° | |
| Template:Deg2DMS / day | |
| Inclination | 5.3195° |
| 258.18° | |
| 237.17° | |
| Physical characteristics | |
| Dimensions | 9.607±0.124 km[4][5] 15.19±0.23 km[6] 16.96±1.11 km[7] 19.30 km (calculated)[3] |
| 9.6 h[8] 9.6±0.5 h[8] | |
| 0.057 (assumed)[3] 0.099±0.013[7] 0.101±0.014[5][6] 0.3033±0.0538[4] | |
| SMASS = X[1] E[4] · X[3] | |
| 12.3[1][3] · 12.00[7][4] · 12.20[6] · 12.77±0.25[9] | |
| Page Template:Reflist/styles.css has no content. | |
Script error: No such module "Check for conflicting parameters".
3367 Alex, provisional designation Template:Mp, is a background asteroid from the intermediate region of the asteroid belt, approximately 17 kilometers (11 miles) in diameter. It was discovered on 2 September 1993, by American astronomer Norman Thomas at Lowell's Anderson Mesa Station, near Flagstaff, Arizona, in the United States.[10] The X-type asteroid has a rotation period of 9.6 hours. It was named after the grandson of the discoverer, Alex Baltutis.[2]
Orbit and classification
Alex is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.6–3.0 AU once every 4 years and 8 months (1,697 days). Its orbit has an eccentricity of 0.07 and an inclination of 5° with respect to the ecliptic.[1] The asteroid was first identified as Template:Mp at Heidelberg Observatory in 1953, extending the body's observation arc by 30 years prior to its official discovery observation at Anderson Mesa.[10]
Naming
This minor planet was named by the discoverer after his grandson, Alex R. Baltutis.[2] The official naming citation was published by the Minor Planet Center on 26 March 1986 (M.P.C. 10550).[11]
Physical characteristics
In the SMASS classification, Alex is an X-type asteroid, while NASA's Wide-field Infrared Survey Explorer characterizes it as a bright E-type asteroid.[1][4] Due to its intermediate albedo, the body may be of metallic composition.
Rotation period
In February 2006 and April 2011, two rotational lightcurves of Alex were obtained from photometric observations made by French astronomers René Roy and Laurent Bernasconi, respectively. The fragmentary lightcurves gave an identical rotation period of 9.6 and 9.6±0.5 hours with a respective brightness variation of 0.01 and 0.05 in magnitude (U=1/1).[8] Such a low amplitude typically indicates that the body has a nearly spheroidal shape.
Diameter and albedo
According to the space-based surveys carried out by the Japanese Akari satellite and by WISE with its subsequent NEOWISE mission, Alex has an albedo of 0.10, and measures 17.0 and 15.2 kilometers in diameter, respectively.[7][6] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 19.3 kilometers with an absolute magnitude of 12.3.[3]
References
Page Template:Reflist/styles.css has no content.
- ^ a b c d e f Page Module:Citation/CS1/styles.css has no content."JPL Small-Body Database Browser: 3367 Alex (1983 CA3)" (2017-05-05 last obs.). Jet Propulsion Laboratory. Retrieved 17 June 2017.
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Schmadel, Lutz D. (2007). "(3367) Alex". Dictionary of Minor Planet Names – (3367) Alex. Springer Berlin Heidelberg. p. 280. doi:10.1007/978-3-540-29925-7_3367. ISBN 978-3-540-00238-3.
- ^ a b c d e f Template:Cite LCDB
- ^ a b c d e Page Module:Citation/CS1/styles.css has no content.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 9 May 2016.
- ^ a b Page Module:Citation/CS1/styles.css has no content.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 4 December 2016.
- ^ a b c d Page Module:Citation/CS1/styles.css has no content.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 9 May 2016.
- ^ a b c d Page Module:Citation/CS1/styles.css has no content.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)
- ^ a b c Page Module:Citation/CS1/styles.css has no content.Behrend, Raoul. "Asteroids and comets rotation curves – (3367) Alex". Geneva Observatory. Retrieved 9 May 2016.
- ^ Page Module:Citation/CS1/styles.css has no content.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 9 May 2016.
- ^ a b Page Module:Citation/CS1/styles.css has no content."3367 Alex (1983 CA3)". Minor Planet Center. Retrieved 9 May 2016.
- ^ Page Module:Citation/CS1/styles.css has no content."MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 May 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Script error: No such module "webarchive".)
- 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
- Template:AstDys
- 3367 Alex at the JPL Small-Body DatabaseTemplate:Edit at Wikidata
Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found. Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found. Lua error in package.lua at line 80: module 'Module:Authority control/config' not found.
