1132 Hollandia, provisional designation , is a stony
asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere.
...
from the middle region of the
asteroid belt, approximately 27 kilometers in diameter. It was discovered on 13 September 1929, by Dutch astronomer
Hendrik van Gent
Hendrik van Gent (14 September 1899, Pernis – March 29, 1947, Amsterdam)''Album studiosorum Academiæ lugduno-batavæ MDCCCLXXV-MCMXXV'', A. W. Sijthoff, 1925, p. 376 was a Dutch astronomer.
He moved to South Africa in 1928 in order to o ...
at Leiden Southern Station, annex to the
Johannesburg Observatory in South Africa.
It was named for the region
Holland in the Netherlands.
Classification and orbit
''Hollandia'' is an assumed stony
S-type asteroid. It orbits the Sun at a distance of 1.9–3.4
AU once every 4 years and 5 months (1,609 days). Its orbit has an
eccentricity of 0.278 and an
inclination of 7
° with respect to the
ecliptic.
The body's
observation arc begins with its official discovery observation as no
precoveries were taken and no prior identifications were made.
Physical characteristics
Between 2003 and 2014, three rotational
lightcurves of ''Hollandia'' were obtained from photometric observations taken by French amateur astronomer
René Roy, Jason Sauppe at
Oakley Observatory and Maurice Clark at
TTU's Preston Gott Observatory. Lightcurve analysis gave a
rotation period
The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the ...
between 5.360 and 5.568 hours with a brightness variation of 0.15–0.35
magnitude ().
According to the surveys carried out by the Japanese
Akari satellite, and NASA's
Wide-field Infrared Survey Explorer with its subsequent
NEOWISE mission, ''Hollandia'' measures between 20.48 and 27.727 kilometers in diameter, and its surface has an
albedo between 0.086 and 0.135.
The ''Collaborative Asteroid Lightcurve Link'' assumes an albedo of 0.10 – a compromise value that lies in between the albedos for
carbonaceous (0.057) and for
stony (0.20) asteroids – and calculates a diameter of 25.32 kilometers using an
absolute magnitude of 11.1.
Naming
This
asteroid
An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere.
...
was named after the Latin name for
The Netherlands, a region in the
European Union.
Naming citation was first published by
Paul Herget in ''
The Names of the Minor Planets'' in 1955 ().
References
External links
Asteroid Lightcurve Database (LCDB) query form
)
Dictionary of Minor Planet Names Google books
– Observatoire de Genève, Raoul Behrend
– Minor Planet Center
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{{DEFAULTSORT:Hollandia
001132
Discoveries by Hendrik van Gent
Named minor planets
19290913