740 Cantabia

740 Cantabia

Discovery
Discovered by	Joel Hastings Metcalf
Discovery site	Winchester, Massachusetts
Discovery date	10 February 1913
Designations
MPC designation	(740) Cantabia
Pronunciation	/kænˈteɪbiə/[1]
Alternative designations	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)
Semi-major axis	3.0519 AU (456.56 Gm)
Eccentricity	0.11053
Orbital period (sidereal)	5.33 yr (1,947.4 d)
Mean anomaly	133.938°
Mean motion	0° 11^m 5.532^s / day
Inclination	10.846°
Longitude of ascending node	116.099°
Argument of perihelion	47.844°
Physical characteristics
Mean radius	45.45±0.85 km
Synodic rotation period	64.453 h (2.6855 d)
Geometric albedo	0.0552±0.002
Absolute magnitude (H)	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.^[citation needed]

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

• List of minor planets/701–800
• Meanings of minor planet names: 501–1000

References

1. Per 'Cantabria' in Noah Webster (1884) A Practical Dictionary of the English Language
2. "740 Cantabia (1913 QS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
3. 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.
4. Lazzaro, D.; et al. (November 2004), "S^3OS^2: 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
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 740 Cantabia at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters