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1336 Zeelandia

Stony Koronian asteroid

Field	Value
minorplanet	yes
name	1336 Zeelandia
background	#D6D6D6
image	001336-asteroid shape model (1336) Zeelandia.png
caption	Shape model of Zeelandia from its lightcurve
discovery_ref
discoverer	H. van Gent
discovery_site	Johannesburg Obs.
discovered	9 September 1934
mpc_name	(1336) Zeelandia
alt_names	1934 RW1929 QE
1930 XC1935 YF
1939 RPA906 YO
named_after	Zeeland
(a province of the Netherlands)
mp_category	main-belt(outer)
Koronis
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	112.01 yr (40,913 days)
aphelion	3.0348 AU
perihelion	2.6654 AU
semimajor	2.8501 AU
eccentricity	0.0648
period	4.81 yr (1,757 days)
mean_anomaly	117.20°
mean_motion	/ day
inclination	3.1972°
asc_node	97.420°
arg_peri	220.01°
dimensions	km
km
km
km
km
rotation	h
h
albedo

spectral_type	B–V 0.810
U–B 0.366
Tholen S
SMASS S
abs_magnitude	10.6610.79

1930 XC1935 YF 1939 RPA906 YO (a province of the Netherlands) Koronis km km km km h

U–B 0.366 Tholen S SMASS S

1336 Zeelandia, provisional designation , is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 9 September 1934, by Dutch astronomer Hendrik van Gent at the Union Observatory in Johannesburg, South Africa. The asteroid was named for the Dutch province of Zeeland.

Orbit and classification

Zeelandia belongs to the Koronis family (605), a very large asteroid family of 6,000 known members with stony composition and nearly co-planar ecliptical orbits.

It orbits the Sun in the outer main-belt at a distance of 2.7–3.0 AU once every 4 years and 10 months (1,757 days; semi-major axis of 2.85 AU). Its orbit has an eccentricity of 0.06 and an inclination of 3° with respect to the ecliptic. In October 1905, a first precovery was taken at the Lowell Observatory in Arizona. Its first identification as was made at Taunton Observatory (803) in December 1906. The body's observation arc begins with its official discovery observation at Johannesburg in September 1934.

Physical characteristics

Zeelandia has been characterized as a stony S-type asteroid in both the Tholen and SMASS classification.

Rotation period

In March 2004, a rotational lightcurve of Zeelandia was obtained from photometric observations by a collaboration of American astronomers. Lightcurve analysis gave a well-defined rotation period of 15.602 hours with a brightness variation of 0.61 magnitude (). The result was confirmed by photometrists Pierre Antonini, Federico Manzini, Julian Oey and Frederick Pilcher, as well as Hiromi and Hiroko Hamanowa, who measured a similar period of 15.624 with an amplitude of 0.50 magnitude in April 2005 ().

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Zeelandia measures between 19.18 and 23.63 kilometers in diameter and its surface has an albedo between 0.153 and 0.273.

The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.2183 and a diameter of 20.99 kilometers based on an absolute magnitude of 10.66.

Naming

This minor planet was named for the Dutch province of Zeeland. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 121).

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

koronis-asteroids discoveries-by-hendrik-van-gent named-minor-planets s-type-asteroids-(tholen) s-type-asteroids-(smass) astronomical-objects-discovered-in-1934

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