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276 Adelheid

Main-belt asteroid

Field	Value
minorplanet	yes
name	276 Adelheid
background	#D6D6D6
image	276Adelheid (Lightcurve Inversion).png
caption	Lightcurve-based 3D-model Adelheid
discovery_ref
discoverer	J. Palisa
discovery_site	Vienna Obs.
discovered	17 April 1888
mpc_name	(276) Adelheid
alt_names	A888 HA
pronounced
named_after	unknown (Adelheid)
mp_category	main-belt(outer)
Alauda
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	118.38 yr (43,239 days)
aphelion	3.3296 AU
perihelion	2.9065 AU
semimajor	3.1181 AU
eccentricity	0.0678
period	5.51 yr (2,011 days)
mean_anomaly	276.54°
mean_motion	/ day
inclination	21.614°
asc_node	211.16°
arg_peri	265.21°
dimensions	km
km
km
km
121.56 km (derived)
km
km
km
km
km
rotation	h
h
h
h
h
h
h
h
h
h
albedo
0.0434 (derived)

spectral_type	Tholen XP
B–V 0.708
U–B 0.271
abs_magnitude	8.508.568.608.61

Alauda km km km 121.56 km (derived) km km km km km h h h h h h h h h

0.0434 (derived)

B–V 0.708 U–B 0.271

276 Adelheid is a dark Alauda asteroid from the outer region of the asteroid belt, approximately 121 kilometers in diameter. It was discovered by Austrian astronomer Johann Palisa at Vienna Observatory on 17 April 1888. The meaning of the asteroids's name is unknown.

Classification

Adelheid is a member of the Alauda family (902), a large family of typically bright carbonaceous asteroids and named after its parent body, 702 Alauda.

Physical characteristics

Photometric observations in 1992 gave a lightcurve with a period of 6.328 ± 0.012 hours and a brightness variation of 0.10 ± 0.02 in magnitude. The curve is regular with two maxima and minima.

In the Tholen classification, its spectrum has been characterized as that of an X-type asteroid, while polarimetric observations refined its classification to a primitive P-type.

Naming

Any reference of Adelheid's name to a person or occurrence is unknown. Among the many thousands of named minor planets, Adelheid is one of 120 asteroids for which no official naming citation has been published. All of these low-numbered asteroids have numbers between and and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth.

References

[https://www.germannames.de/wiki/Adelheid (German Names)]

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.

alauda-asteroids discoveries-by-johann-palisa named-minor-planets x-type-asteroids-(tholen) astronomical-objects-discovered-in-1888

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