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1347 Patria, provisional designation 1931 VW, is a carbonaceous asteroid from the background population of the central asteroid belt, approximately 32 kilometers in diameter. It was discovered on 6 November 1931, by Soviet astronomer Grigory Neujmin at the Simeiz Observatory on the Crimean peninsula. The asteroid was named for the Latin word of fatherland.

Orbit and classification

Patria is a non-family asteroid of the main belt's background population. It orbits the Sun in the central main-belt at a distance of 2.4–2.7 AU once every 4 years and 1 month (1,506 days; semi-major axis of 2.57 AU). Its orbit has an eccentricity of 0.07 and an inclination of 12° with respect to the ecliptic.

The asteroid was first identified as A898 VB at Heidelberg Observatory in November 1898. The body's observation arc begins a few days later at Vienna Observatory, almost 33 years prior to its official discovery observation at Simeiz.

Physical characteristics

Patria is an assumed C-type asteroid.

Rotation period

In October 2005, a first rotational lightcurve of Patria was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. Lightcurve analysis gave a slightly longer-than average rotation period of 29.5 hours with a brightness amplitude of 0.12 magnitude (U=2).

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Patria measures between 30.72 and 34.98 kilometers in diameter and its surface has an albedo between 0.03 and 0.0462.

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0506 and a diameter of 32.48 kilometers based on an absolute magnitude of 11.3.

Naming

This minor planet was named after "Patria", the Latin word for native country or fatherland. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 122).

References

1. ^ "JPL Small-Body Database Browser: 1347 Patria (1931 VW)" (2017-10-28 last obs.). Jet Propulsion Laboratory. Retrieved 16 November 2017.
2. "patria". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 21 March 2020.
3. ^ Schmadel, Lutz D. (2007). "(1347) Patria". Dictionary of Minor Planet Names – (1347) Patria. Springer Berlin Heidelberg. p. 109. doi:10.1007/978-3-540-29925-7_1348. ISBN 978-3-540-00238-3.
4. ^ "LCDB Data for (1347) Patria". Asteroid Lightcurve Database (LCDB). Retrieved 16 November 2017.
5. ^ "Asteroid 1347 Patria – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
6. ^ 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. S2CID 9341381. Retrieved 16 November 2017.
7. ^ Masiero, Joseph R.; Nugent, C.; Mainzer, A. K.; Wright, E. L.; Bauer, J. M.; Cutri, R. M.; et al. (October 2017). "NEOWISE Reactivation Mission Year Three: Asteroid Diameters and Albedos". The Astronomical Journal. 154 (4): 10. arXiv:1708.09504. Bibcode:2017AJ....154..168M. doi:10.3847/1538-3881/aa89ec.
8. ^ 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.
9. ^ Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
10. ^ 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)
11. ^ 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. S2CID 46350317. Retrieved 16 November 2017.
12. ^ Behrend, Raoul. "Asteroids and comets rotation curves – (1347) Patria". Geneva Observatory. Retrieved 16 November 2017.
13. 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. S2CID 53493339. Retrieved 16 November 2017.
14. ^ "1347 Patria (1931 VW)". Minor Planet Center. Retrieved 16 November 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
• 1347 Patria at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 1347 Patria at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

• Minor planet object articles (numbered)
• Background asteroids
• Discoveries by Grigory Neujmin
• Named minor planets
• Astronomical objects discovered in 1931