1460 Haltia
| Discovery[1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 24 November 1937 |
| Designations | |
| (1460) Haltia | |
Named after | Halti/Haltia[2] (highest Finnish peak) |
| 1937 WC | |
| main-belt · (middle) background[3] | |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 79.61 yr (29,077 days) |
| Aphelion | 3.0202 AU |
| Perihelion | 2.0643 AU |
| 2.5422 AU | |
| Eccentricity | 0.1880 |
| 4.05 yr (1,481 days) | |
| 245.72° | |
| 0° 14m 35.52s / day | |
| Inclination | 6.6858° |
| 74.185° | |
| 358.22° | |
| Physical characteristics | |
| Dimensions | 6.57±1.19 km[4] 7.43±0.61 km[5] 8.440±0.225 km[6] 8.97 km (calculated)[7] |
| 3.58682±0.00006 h[8] 3.588±0.005 h[8] 3.59 h[7] | |
| 0.186±0.032[5] 0.20 (assumed)[7] 0.226±0.030[6] 0.36±0.15[4] | |
| S (assumed)[7] | |
| 12.60[4][6][7] · 12.7[1] · 12.78±0.14[9] · 13.10[5] | |
1460 Haltia, provisional designation 1937 WC, is a stony background asteroid from the central regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 24 November 1937, by Finnish astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory in Turku, Finland.[10] The asteroid was named after Halti (Haltia), Finland's highest peak on the border to Norway.[2]
Orbit and classification
[edit]Haltia is a non-family asteroid of the main belt's background population.[3] It orbits the Sun in the central asteroid belt at a distance of 2.1–3.0 AU once every 4 years and 1 month (1,481 days). Its orbit has an eccentricity of 0.19 and an inclination of 7° with respect to the ecliptic.[1] The body's observation arc begins with its official discovery observation at Turku.[10]
Physical characteristics
[edit]Haltia is an assumed stony S-type asteroid.[7]
Rotation period
[edit]Two rotational lightcurves of Haltia were obtained from photometric observations by astronomers Henk de Groot, Raoul Behrend and René Roy. Lightcurve analysis gave a respective rotation period of 3.58682 and 3.588 hours with a brightness amplitude of 0.32 magnitude (U=3-/3).[8] The Lightcurve Data Base adopts a consolidated period of 3.59 hours.[7]
Diameter and albedo
[edit]According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Haltia measures between 6.57 and 8.44 kilometers in diameter and its surface has an albedo between 0.186 and 0.36.[4][5][6]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.97 based on an absolute magnitude of 12.6.[7]
Naming
[edit]This minor planet was named after Halti (Haltia), the highest Finnish peak at 1,365 metres (4,478 ft) located on the border between Norway and Finland.[2] The official naming citation was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3928).[11]
References
[edit]- ^ a b c d "JPL Small-Body Database Browser: 1460 Haltia (1937 WC)" (2017-07-04 last obs.). Jet Propulsion Laboratory. Retrieved 20 October 2017.
- ^ a b c Schmadel, Lutz D. (2007). "(1460) Haltia". Dictionary of Minor Planet Names – (1460) Haltia. Springer Berlin Heidelberg. p. 117. doi:10.1007/978-3-540-29925-7_1461. ISBN 978-3-540-00238-3.
- ^ a b "Asteroid 1460 Haltia – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
- ^ a b c d 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 20 October 2017.
- ^ 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)
- ^ 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 20 October 2017.
- ^ a b c d e f g h "LCDB Data for (1460) Haltia". Asteroid Lightcurve Database (LCDB). Retrieved 20 October 2017.
- ^ a b c Behrend, Raoul. "Asteroids and comets rotation curves – (1460) Haltia". Geneva Observatory. Retrieved 20 October 2017.
- ^ 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 20 October 2017.
- ^ a b "1460 Haltia (1937 WC)". Minor Planet Center. Retrieved 20 October 2017.
- ^ Schmadel, Lutz D. (2009). "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
[edit]- 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
- 1460 Haltia at AstDyS-2, Asteroids—Dynamic Site
- 1460 Haltia at the JPL Small-Body Database
