1607 Mavis

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1607 Mavis
1607Mavis (Lightcurve Inversion).png
Lightcurve-based 3D-model of Mavis
Discovery [1]
Discovered by E. Johnson
Discovery site Johannesburg Obs.
Discovery date 3 September 1950
Designations
MPC designation (1607) Mavis
Named after
Mavis Bruwer
(wife of astronomer)
Jacobus Bruwer[2]
1950 RA · 1934 VQ
1958 OB · 1958 PD
A903 BH
main-belt · (middle)[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 114.29 yr (41,743 days)
Aphelion 3.3268 AU
Perihelion 1.7728 AU
2.5498 AU
Eccentricity 0.3047
4.07 yr (1,487 days)
158.86°
0° 14m 31.56s / day
Inclination 8.5789°
122.53°
235.96°
Physical characteristics
Dimensions 11.57±1.76 km[4]
12.10 km (derived)[3]
12.756±0.210 km[5][6]
14.91±0.25 km[7]
6.1339±0.0004 h[8]
6.1508±0.0005 h[9]
0.189±0.007[7]
0.193±0.021[6]
0.2487±0.0428[5]
0.31±0.11[4]
0.3320 (derived)[3]
S[3][10]
11.29±0.27[10] · 11.4[1][3] · 11.54[4] · 11.6[7][5]

1607 Mavis, provisional designation 1950 RA, is a stony asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 3 September 1950, by South African astronomer Ernest Johnson at Johannesburg Observatory in South Africa.[11] It was later named after the wife of astronomer Jacobus Bruwer.[2]

Orbit and classification[edit]

This asteroid orbits the Sun in the middle main-belt at a distance of 1.8–3.3 AU once every 4 years and 1 month (1,487 days). Its orbit has an eccentricity of 0.30 and an inclination of 9° with respect to the ecliptic.[1] The asteroid's observation arc begins with its official discovery observations, as the two previous identifications, A903 BH and 1934 VQ, made at Heidelberg and Simeiz in 1903 and 1934, respectively, remained unused.[11]

Physical characteristics[edit]

Mavis is a stony S-type asteroid.[3][10]

Rotation period[edit]

In September 2007, Australian astronomers Collin Bembrick and Julian Oeya independently obtained two rotational lightcurves of Mavis. These well-defined lightcurves gave a rotation period of 6.1339 and 6.1508 hours with a brightness variation of 0.50 and 0.53 magnitude, respectively (U=3/3).[8][9]

Diameter and albedo[edit]

According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Mavis measures between 11.57 and 14.91 kilometers in diameter and its surface has an albedo between 0.189 and 0.31.[4][5][6][7] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.3320 and a diameter of 12.10 kilometers based on an absolute magnitude of 11.4.[3]

Naming[edit]

This minor planet was named in honor of the Mavis Bruwer, wife of astronomer Jacobus Albertus Bruwer, who was an astronomer at Johannesburg Observatory, and after whom 1811 Bruwer was named.[2] Naming citation was published before November 1977 (M.P.C. 3931).[12]

References[edit]

  1. ^ a b c d "JPL Small-Body Database Browser: 1607 Mavis (1950 RA)" (2017-05-06 last obs.). Jet Propulsion Laboratory. Retrieved 5 June 2017. 
  2. ^ a b c Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1607) Mavis. Springer Berlin Heidelberg. p. 127. ISBN 978-3-540-00238-3. Retrieved 29 December 2016. 
  3. ^ a b c d e f g "LCDB Data for (1607) Mavis". Asteroid Lightcurve Database (LCDB). Retrieved 29 December 2016. 
  4. ^ a b c d 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. Bibcode:2016AJ....152...63N. arXiv:1606.08923Freely accessible. doi:10.3847/0004-6256/152/3/63. Retrieved 29 December 2016. 
  5. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. Bibcode:2011ApJ...741...90M. arXiv:1109.6407Freely accessible. doi:10.1088/0004-637X/741/2/90. Retrieved 29 December 2016. 
  6. ^ a b c 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. Bibcode:2011ApJ...741...68M. arXiv:1109.4096Freely accessible. doi:10.1088/0004-637X/741/2/68. Retrieved 29 December 2016. 
  7. ^ 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" (PDF). Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 29 December 2016. 
  8. ^ a b Bembrick, Collin; Allen, Bill; Bolt, Greg (June 2008). "The Rotation Periods of 845 Naema, 1607 Mavis, and (30105) 2000 FO3". The Minor Planet Bulletin. 35 (2): 74–75. Bibcode:2008MPBu...35...74B. ISSN 1052-8091. Retrieved 29 December 2016. 
  9. ^ a b Oey, Julian (September 2008). "Lightcurve Analysis of Asteroids from the Kingsgrove and Leura Observatories in the 2nd Half of 2007". The Minor Planet Bulletin. 35 (3): 132–135. Bibcode:2008MPBu...35..132O. ISSN 1052-8091. Retrieved 29 December 2016. 
  10. ^ a b c 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. Bibcode:2015Icar..261...34V. arXiv:1506.00762Freely accessible. doi:10.1016/j.icarus.2015.08.007. Retrieved 29 December 2016. 
  11. ^ a b "1607 Mavis (1950 RA)". Minor Planet Center. Retrieved 29 December 2016. 
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 December 2016. 

External links[edit]