Astronomy:1067 Lunaria

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1067 Lunaria
Discovery[1]
Discovered byK. Reinmuth
Discovery siteHeidelberg Obs.
Discovery date9 September 1926
Designations
(1067) Lunaria
Pronunciation/luːˈnɛəriə/[5]
Named afterLunaria (flowering plant)[2]
1926 RG · 1974 PJ
1974 QC3
Minor planet categorymain-belt · (outer)[3]
Itha[4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc90.74 yr (33,142 days)
|{{{apsis}}}|helion}}3.4206 AU
|{{{apsis}}}|helion}}2.3207 AU
2.8706 AU
Eccentricity0.1916
Orbital period4.86 yr (1,777 days)
Mean anomaly222.90°
Mean motion0° 12m 9.36s / day
Inclination10.547°
Longitude of ascending node289.59°
115.03°
Physical characteristics
Dimensions15.43±0.73 km[6]
18.02±1.33 km[7]
18.07 km (derived)[3]
20.011±0.100 km[8]
22.968±0.243 km[9]
Rotation period6.057±0.001 h[10]
7.74 h[11]
Geometric albedo0.1240±0.0225[9]
0.185±0.012[8]
0.20 (assumed)[3]
0.221±0.034[7]
0.298±0.057[6]
L/S[12] · S[3]
Absolute magnitude (H)10.85±0.31[12] · 10.99[1][6][7] · 11.08[3][9][11]


1067 Lunaria, provisional designation 1926 RG, is a stony Itha asteroid from the outer regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 9 September 1926, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[13] The asteroid was named after the flowering plant Lunaria (honesty).[2]

Orbit and classification

Lunaria is a member of the Itha family,[4] a very small family of asteroids, named after its parent body 918 Itha.[14]:23

It orbits the Sun in the outer asteroid belt at a distance of 2.3–3.4 AU once every 4 years and 10 months (1,777 days; semi-major axis of 2.87 AU). Its orbit has an eccentricity of 0.19 and an inclination of 11° with respect to the ecliptic.[1] The body's observation arc begins at Heidelberg in October 1926, one month after its official discovery observation.[13]

Physical characteristics

Lunaria has been characterized as both L- and S-type asteroid by Pan-STARRS photometric survey.[12] The overall spectral type for the Itha family is that of a stony S-type.[14]:23

Rotation period

In July 1984, a first rotational lightcurve of Lunaria was obtained by American astronomer Richard Binzel. Lightcurve analysis gave a rotation period of 7.74 hours with a brightness variation of 0.13 magnitude ({{{1}}}).[11] In September 2004, Donald Pray at the Carbuncle Hill Observatory (I00) derived a refined period of 6.057 hours with an amplitude of 0.27 magnitude from photometric observations ({{{1}}}).[10]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Lunaria measures between 15.43 and 22.968 kilometers in diameter and its surface has an albedo between 0.1240 and 0.298.[6][7][8][9]

The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a diameter of 18.07 kilometers based on an absolute magnitude of 11.08.[3]

Naming

This minor planet was named after Lunaria (commonly known as "honesty"), a flowering plant in the mustard family. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 101).[2]

Reinmuth's flowers

Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between (1009) and (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were exclusively named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).[15]

References

  1. ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 1067 Lunaria (1926 RG)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001067. Retrieved 7 December 2017. 
  2. ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(1067) Lunaria". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 91. doi:10.1007/978-3-540-29925-7_1068. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (1067) Lunaria". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1067%7CLunaria. Retrieved 7 December 2017. 
  4. ↑ 4.0 4.1 "Asteroid 1067 Lunaria – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1067+Lunaria#Asteroid%201067%20LunariaEAR-A-VARGBDET-5-NESVORNYFAM-V3.0. Retrieved 26 October 2019. 
  5. ↑ lunarian (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=lunarian  (Subscription or UK public library membership required.)
  6. ↑ 6.0 6.1 6.2 6.3 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. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M. Retrieved 7 December 2017. 
  7. ↑ 7.0 7.1 7.2 7.3 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. doi:10.1093/pasj/63.5.1117. Bibcode: 2011PASJ...63.1117U.  (online, AcuA catalog p. 153)
  8. ↑ 8.0 8.1 8.2 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R. et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal 791 (2): 11. doi:10.1088/0004-637X/791/2/121. Bibcode: 2014ApJ...791..121M. 
  9. ↑ 9.0 9.1 9.2 9.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. 
  10. ↑ 10.0 10.1 Pray, Donald P. (March 2005). "Lightcurve analysis of asteroids 276, 539, 1014, 1067, 3693 and 4774". The Minor Planet Bulletin 32 (1): 8–9. ISSN 1052-8091. Bibcode: 2005MPBu...32....8P. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2005MPBu...32....8P. Retrieved 7 December 2017. 
  11. ↑ 11.0 11.1 11.2 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus 72 (1): 135–208. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Bibcode: 1987Icar...72..135B. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1987Icar...72..135B. Retrieved 7 December 2017. 
  12. ↑ 12.0 12.1 12.2 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 7 December 2017. 
  13. ↑ 13.0 13.1 "1067 Lunaria (1926 RG)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1067. Retrieved 7 December 2017. 
  14. ↑ 14.0 14.1 Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131. Bibcode: 2015aste.book..297N. 
  15. ↑ Schmadel, Lutz D. (2007). "(1054) Forsytia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 90. doi:10.1007/978-3-540-29925-7_1055. ISBN 978-3-540-00238-3. 

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