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352 Gisela

Main-belt asteroid

352 Gisela
Discovery
A three-dimensional model of 352 Gisela based on its light curve.
Discovered by	Max Wolf
Discovery date	12 January 1893
Designations
MPC designation	(352) Gisela
Pronunciation	German: [ˈɡiːzəlaː]^[1]
Alternative designations	1893 B; A895 XA; 1950 XT
Minor planet category	Main belt (Flora family)
Orbital characteristics^[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	117.47 yr (42905 d)
Aphelion	2.52149 AU (377.210 Gm)
Perihelion	1.86634 AU (279.200 Gm)
Semi-major axis	2.19392 AU (328.206 Gm)
Eccentricity	0.14931
Orbital period (sidereal)	3.250 yr (1,186.9 d) 3.25 yr (1186.9 d)
Mean anomaly	74.6135°
Mean motion	0° 18^m 11.88^s / day
Inclination	3.38092°
Longitude of ascending node	247.353°
Argument of perihelion	144.194°
Physical characteristics
Dimensions	20.27±2.9 km
Mean density	~2.7 g/cm³^[3]
Synodic rotation period	7.4796 ± 0.0002 h (0.3116500 ± 8.3×10⁻⁶ d)^[4]
Geometric albedo	0.4261±0.153^[2]
Spectral type	S^[2]
Absolute magnitude (H)	10.01,^[2] 10.22^[5]

352 Gisela is an asteroid belonging to the Flora family^[4] in the Main Belt that has an unusually high albedo. It was discovered by German astronomer Max Wolf on 12 January 1893 in Heidelberg, and named after his wife.^[6] This minor planet is orbiting the Sun at a distance of 2.19 AU with a period of 3.250 yr and an orbital eccentricity of 0.149. The orbital plane is inclined at an angle of 3.38° to the plane of the ecliptic.^[2]

Photometric measurements of 352 Gisela during December 1999 were used to produce a light curve showing a sinodic rotation period of 7.49±0.01 h with a brightness variation of 0.32 in magnitude.^[7] This period estimate was refined to 7.4796±0.0002 h in 2012.^[4]

References

↑ (German Names)
1 2 3 4 5 Yeomans, Donald K., "352 Gisela", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
↑ Krasinsky, G. A.; Pitjeva, E. V.; Vasilyev, M. V.; Yagudina, E. I. (2002), "Hidden Mass in the Asteroid Belt", Icarus, 158 (1): 98–105, Bibcode:2002Icar..158...98K, doi:10.1006/icar.2002.6837.
1 2 3 Kryszczynska, A.; et al. (October 2012), "Do Slivan states exist in the Flora family?. I. Photometric survey of the Flora region", Astronomy & Astrophysics, 546: 51, Bibcode:2012A&A...546A..72K, doi:10.1051/0004-6361/201219199, A72.
↑ Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin, 34 (4): 113–119, Bibcode:2007MPBu...34..113W.
↑ Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 66, ISBN 9783662028049.
↑ Lazar, S.; et al. (June 2001), "Lightcurves and Rotation Periods for Minor Planets (305) Gordonia (307) Nike, (337) Devosa, and (352) Gisela", The Minor Planet Bulletin, 28: 32–34, Bibcode:2001MPBu...28...32L.{{citation}}: CS1 maint: multiple names: authors list (link)

External links

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

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