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3917 Franz Schubert, provisional designation 1961 CX, is a bright background asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter. It was discovered on 15 February 1961, by astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, Germany. The asteroid was named after Austrian composer Franz Schubert.

Orbit and classification

Franz Schubert is a non-family asteroid from the main belt's background population. It orbits the Sun in the inner main-belt at a distance of 2.3–2.4 AU once every 3 years and 7 months (1,323 days; semi-major axis of 2.36 AU). Its orbit has an eccentricity of 0.02 and an inclination of 2° with respect to the ecliptic.

The body's observation arc begins with its official discovery observation at Tautenburg in February 1961.

Physical characteristics

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Franz Schubert measures 5.129 kilometers in diameter and its surface has a high albedo of 0.321.

Rotation period

As of 2017, no rotational lightcurve of Franz Schubert has been from photometric observations. The asteroid's rotation period, shape and poles remain unknown.

Naming

This minor planet was named after Austrian composer Franz Schubert (1797–1828). The official naming citation was published by the Minor Planet Center on 20 February 1989 (M.P.C. 14208).

References

1. ^ "JPL Small-Body Database Browser: 3917 Franz (1961 CX)" (2017-10-30 last obs.). Jet Propulsion Laboratory. Retrieved 17 November 2017.
2. ^ "3917 Franz (1961 CX)". Minor Planet Center. Retrieved 17 November 2017.
3. ^ Schmadel, Lutz D. (2007). "(3917) Franz Schubert". Dictionary of Minor Planet Names – (3917) Franz Schubert. Springer Berlin Heidelberg. p. 333. doi:10.1007/978-3-540-29925-7_3906. ISBN 978-3-540-00238-3.
4. ^ "Asteroid 3917 Franz Schubert – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
5. ^ 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 17 November 2017.
6. "Asteroid is not in the LCDB (Data request for (3917) Franz Schubert)". Asteroid Lightcurve Database (LCDB). Retrieved 17 November 2017.
7. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 November 2017.

External links

• "Die Entdeckung des kleinen Planeten (3917) Franz Schubert", ADS Astronomy Abstract Service (in German)
• (3917) Franz Schubert at AstDys-2
• 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
• 3917 Franz Schubert at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 3917 Franz Schubert 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 Freimut Börngen
• Named minor planets
• Astronomical objects discovered in 1961