| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Winchester, Massachusetts |
| Discovery date | 10 February 1913 |
| Designations | |
| (740) Cantabia | |
| Pronunciation | /kænˈteɪbiə/[1] |
| 1913 QS | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 103.10 yr (37,659 d) |
| Aphelion | 3.3892 AU (507.02 Gm) |
| Perihelion | 2.7145 AU (406.08 Gm) |
| 3.0519 AU (456.56 Gm) | |
| Eccentricity | 0.11053 |
| 5.33 yr (1,947.4 d) | |
| 133.938° | |
| 0° 11m 5.532s / day | |
| Inclination | 10.846° |
| 116.099° | |
| 47.844° | |
| Physical characteristics | |
Mean radius | 45.45±0.85 km |
| 64.453 h (2.6855 d) | |
| 0.0552±0.002 | |
| 9.1 | |
740 Cantabia is a minor planet orbiting the Sun. It was discovered on 10 February 1913 at Winchester, Massachusetts by American amateur astronomer J. H. Metcalf. Cantabia is a contraction of Cantabrigia, Latin for Cambridge, named in honor of Cambridge, Massachusetts. It is orbiting at a distance of 3.05 AU with a period of 5.33 years and an eccentricity (ovalness) of 0.11.[2] Between 2014 and 2021, 740 Cantabia has been observed to occult three stars.
This asteroid shows an exceptionally slow rate of spin. Photometry observations from two independent teams during 2009 were combined to generate a light curve showing a rotation period of 64.453 hours (2.69 days) with a brightness variation of 0.16±0.03 in magnitude.[3] The spectrum is classified as type CX in the Tholen taxonomy.[4] It spans a girth estimated at ~91 km.[2]
See also
References
- ↑ Per 'Cantabria' in Noah Webster (1884) A Practical Dictionary of the English Language
- 1 2 3 "740 Cantabia (1913 QS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
- ↑ Stephens, Robert D.; et al. (January 2010), "Lightcurve Analysis of 740 Cantabia", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 37 (1): 17, Bibcode:2010MPBu...37...17S.
- ↑ Lazzaro, D.; et al. (November 2004), "S3OS2: the visible spectroscopic survey of 820 asteroids", Icarus, 172 (1): 179–220, Bibcode:2004Icar..172..179L, doi:10.1016/j.icarus.2004.06.006.
External links
- Lightcurve plot of 740 Cantabia, Palmer Divide Observatory, B. D. Warner (2009)
- 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
- 740 Cantabia at AstDyS-2, Asteroids—Dynamic Site
- 740 Cantabia at the JPL Small-Body Database