1711 Sandrine

1711 Sandrine

Discovery[1]
Discovered by	E. Delporte
Discovery site	Uccle Obs.
Discovery date	29 January 1935
Designations
MPC designation	(1711) Sandrine
Named after	(grand-niece of astronomer) Georges Roland[2]
Alternative designations	1935 BB · 1938 SF1 1943 QE · 1949 WF 1951 CX1 · 1952 HG1 1956 AH · 1956 AW 1956 DC · 1959 TR 1959 UH · A909 DJ
Minor planet category	main-belt · (outer) Eos[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	107.82 yr (39,380 days)
Aphelion	3.3596 AU
Perihelion	2.6666 AU
Semi-major axis	3.0131 AU
Eccentricity	0.1150
Orbital period (sidereal)	5.23 yr (1,910 days)
Mean anomaly	5.6639°
Mean motion	0° 11^m 18.24^s / day
Inclination	11.095°
Longitude of ascending node	134.78°
Argument of perihelion	251.25°
Physical characteristics
Dimensions	22.929±0.364 km[4]
Geometric albedo	0.133±0.011[4]
Spectral type	Tholen = S[1] B–V = 0.855[1] U–B = 0.447[1]
Absolute magnitude (H)	11.01[1]

1711 Sandrine, provisional designation 1935 BB, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 23 kilometers in diameter.

This asteroid was discovered on 29 January 1935, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle.^[5] It was named after the grand-niece of astronomer Georges Roland.^[2]

Classification and orbit

Sandrine is a member of the Eos family (606), the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids.^[3][6]: 23 It orbits the Sun in the outer main-belt at a distance of 2.7–3.4 AU once every 5 years and 3 months (1,910 days). Its orbit has an eccentricity of 0.12 and an inclination of 11° with respect to the ecliptic.^[1] The body's observation arc begins with its official discovery observation. Its first observation at Heidelberg in 1909, when it was identified as A909 DJ, has been discarded.^[5]

Physical characteristics

In the Tholen classification, Sandrine is characterized as a common S-type asteroid.^[1]

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Sandrine measures 22.93 kilometers in diameter, and its surface has an albedo of 0.133.^[4] It has an absolute magnitude of 11.01.^[1]

Lightcurves

As of 2017, Sandrine's rotation period and shape remain unknown.^[1]

Naming

This minor planet was named after Sandrine, a grand-niece of Georges Roland, astronomer at Uccle and co-discoverer of Comet Arend–Roland. Delporte also named 1707 Chantal and 1848 Delvaux after family members of his collaborator.^[2] The official naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C. 6832).^[7]

References

1. "JPL Small-Body Database Browser: 1711 Sandrine (1935 BB)" (2016-12-13 last obs.). Jet Propulsion Laboratory. Retrieved 7 June 2017.
2. Schmadel, Lutz D. (2007). "(1711) Sandrine". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 136. doi:10.1007/978-3-540-29925-7_1712. ISBN 978-3-540-00238-3.
3. "Asteroid 1711 Sandrine – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
4. 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. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 18 December 2016.
5. "1711 Sandrine (1935 BB)". Minor Planet Center. Retrieved 18 December 2016.
6. Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
7. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 18 December 2016.

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
• 1711 Sandrine at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 1711 Sandrine at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters