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1077 Campanula

Main-belt asteroid

Field	Value
minorplanet	yes
name	1077 Campanula
background	#D6D6D6
image	001077-asteroid shape model (1077) Campanula.png
caption	Shape model of Campanula from its lightcurve
discovery_ref
discoverer	K. Reinmuth
discovery_site	Heidelberg Obs.
discovered	6 October 1926
mpc_name	(1077) Campanula
alt_names	1926 TK1957 AJ
1972 CB
pronounced
named_after	Campanula (bellflower)
mp_category	main-belt(inner)
Erigone
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	90.56 yr (33,077 days)
aphelion	2.8655 AU
perihelion	1.9220 AU
semimajor	2.3938 AU
eccentricity	0.1971
period	3.70 yr (1,353 days)
mean_anomaly	218.36°
mean_motion	/ day
inclination	5.3941°
asc_node	346.20°
arg_peri	13.591°
mean_diameter	km
km
km
rotation

pole_ecliptic_lat	{{plainlist
* (178.0°, 76.0°) (λ<sub>1</sub>/β<sub>1</sub>)<ref name	"Ferret" /
* (313.0°, 59.0°) (λ<sub>2</sub>/β<sub>2</sub>)<ref name	"Ferret" /}}
albedo

S<ref name	"lcdb" /
V–R
abs_magnitude	12.3

1972 CB Erigone km km

(178.0°, 76.0°) (λ1/β1)
(313.0°, 59.0°) (λ2/β2)}}

S V–R =

1077 Campanula, provisional designation , is a presumed Erigonian asteroid, approximately 9 km in diameter, located in the inner region of the asteroid belt. It was discovered on 6 October 1926, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the bellflower Campanula.

Classification and orbit

Campanula is considered to be a member of the Erigone family (406), which is named after 163 Erigone, while other sources classify it as a background asteroid, not associated to any known asteroid family. It orbits the Sun in the inner main-belt at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,353 days). Its orbit has an eccentricity of 0.20 and an inclination of 5° with respect to the ecliptic. The body's observation arc begins at Heidelberg, 2 months after its official discovery observation.

Naming

This minor planet was named for the bellflower Campanula. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 102).

Reinmuth's flowers

Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between and . This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants).

Physical characteristics

Campanula is an assumed stony S-type asteroid, which is not in line with the darker C- and X-types seen among the Erigonian asteroids.

Rotation period and poles

Several rotational lightcurves of Campanula were obtained from photometric observations. Lightcurve analysis gave a rotation period of 3.847 to 3.852 hours with a brightness variation of 0.24 to 0.40 magnitude (). A 2016-published lightcurve, using modeled photometric data from the Lowell Photometric Database (LPD), gave a concurring period of 3.850486 hours (), as well as two spin axis of (178.0°, 76.0°) and (313.0°, 59.0°) in ecliptic coordinates (λ, β).

Diameter and albedo

According to observations taken at the Balzaretto Observatory (A81) and the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Campanula measures between 7.55 and 9.709 kilometers in diameter and its surface has an albedo between 0.225 and 0.33. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 9.40 kilometers based on an absolute magnitude of 12.50.

Notes

References

{{OED. campanula

Info: Wikipedia Source

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erigone-asteroids discoveries-by-karl-wilhelm-reinmuth named-minor-planets astronomical-objects-discovered-in-1926

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