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From Wikipedia, the free encyclopedia
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.[citation needed]
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 | |
45.45±0.85 km | |
64.453 h (2.6855 d) | |
0.0552±0.002 | |
9.1 | |
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]
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