318 Magdalena

318 Magdalena
Discovery
Discovered by	Auguste Charlois
Discovery date	24 September 1891
Designations
MPC designation	(318) Magdalena
Pronunciation	/mæɡdəˈliːnə/
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	124.56 yr (45496 d)
Aphelion	3.46477 AU (518.322 Gm)
Perihelion	2.92120 AU (437.005 Gm)
Semi-major axis	3.19298 AU (477.663 Gm)
Eccentricity	0.085119
Orbital period (sidereal)	5.71 yr (2084.0 d)
Mean anomaly	158.522°
Mean motion	0° 10m 21.886s / day
Inclination	10.6573°
Longitude of ascending node	161.509°
Argument of perihelion	296.737°
Physical characteristics
Dimensions	85 km
Synodic rotation period	42.49 h (1.770 d)
Absolute magnitude (H)	9.4

Magdalena (minor planet designation: 318 Magdalena) is a main belt asteroid orbiting the Sun. It was discovered by Auguste Charlois on 24 September 1891 in Nice.

On April 15, 2005 UT Magdalena occulted a 10.7 mag star in the constellation Scutum for observers along a path across Australia.

Measurements made with the IRAS observatory give a diameter of 106.08 ± 0.25 km and a geometric albedo of 0.03 ± 0.01. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of 105.32 ± 11.11 km and a geometric albedo of 0.03 ± 0.01.^[3]

Alternative Rock group The Pixies named one of their songs after the asteroid on their album Indie Cindy.

References[]

^ Noah Webster (1884) A Practical Dictionary of the English Language
^ "318 Magdalena". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
^ Ryan, Erin Lee; et al. (April 2012), "The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer", arXiv:1204.1116 [astro-ph.EP]

External links[]

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

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[1] Noah Webster (1884) A Practical Dictionary of the English Language

[jpldata-2] "318 Magdalena". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.

[2012arXiv1204-3] Ryan, Erin Lee; et al. (April 2012), "The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer", arXiv:1204.1116 [astro-ph.EP]

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