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1017 Jacqueline

Main-belt asteroid

Field	Value
minorplanet	yes
name	1017 Jacqueline
background	#D6D6D6
image	001017-asteroid shape model (1017) Jacqueline.png
caption	Shape model of Jacqueline from its lightcurve
discovery_ref
discoverer	B. Jekhovsky
discovery_site	Algiers Obs.
discovered	4 February 1924
mpc_name	(1017) Jacqueline
alt_names	1924 QL1929 LG
1953 ACA924 ED
A924 CH
named_after	Jacqueline Zadoc-Kahn Eisenmann
(discoverer's pupil)
mp_category	{{plainlist
* main-belt<ref name	"MPC-object" /(middle)
* background<ref name	"AstDys-object" /}}
orbit_ref
epoch	31 May 2020 (JD 2459000.5)
uncertainty	0
observation_arc	92.01 yr (33,607 d)
aphelion	2.8098 AU
perihelion	2.4017 AU
semimajor	2.6058 AU
eccentricity	0.0783
period	4.21 yr (1,536 d)
mean_anomaly	292.84°
mean_motion	/ day
inclination	7.9280°
asc_node	118.94°
arg_peri	68.145°
mean_diameter	{{plainlist
* {{val	37.65	3.4	ul	km}}
* {{val	38.87	0.51	u	km}}
* {{val	40.152	0.199	u	km}}}}
rotation
pole_ecliptic_lat	{{plainlist
* (7.0°, 55.0°) (λ<sub>1</sub>/β<sub>1</sub>)<ref name	"Ferret" /
* (170.0°, 65.0°) (λ<sub>2</sub>/β<sub>2</sub>)<ref name	"Ferret" /}}
albedo	{{plainlist
* <ref name	"AKARI" /
* <ref name	"Mainzer-2016" /
* <ref name	"SIMPS" /}}
spectral_type	SMASS C
abs_magnitude	11.1

1953 ACA924 ED A924 CH (discoverer's pupil)

main-belt(middle)
background}}
}}
(7.0°, 55.0°) (λ1/β1)
(170.0°, 65.0°) (λ2/β2)}}
}}

1017 Jacqueline (prov. designation: or ) is a dark background asteroid from the central regions of the asteroid belt. It was discovered on 4 February 1924, by Russian-French astronomer Benjamin Jekhowsky at the Algiers Observatory, Algeria, in North Africa. The carbonaceous C-type asteroid has a rotation period of 7.87 hours with a high brightness amplitude of 0.6 magnitude and measures approximately 39 km in diameter. It was named after the French physicist and long-time pupil of the discoverer, Jacqueline Zadoc-Kahn Eisenmann (1904–1998).

Orbit and classification

Jacqueline is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the intermediate asteroid belt at a distance of 2.4–2.8 AU once every 4 years and 3 months (1,536 days; semi-major axis of 2.61 AU). Its orbit has an eccentricity of 0.08 and an inclination of 8° with respect to the ecliptic. The asteroid's earliest preserved observation dates back to 7 March 1924 at Heidelberg Observatory, where the body's observation arc begins in February 1928, nearly four years after its official discovery observation at Algiers–Bouzaréah.

Naming

This minor planet was named after Jacqueline Zadoc-Kahn Eisenmann (1904–1998), a French physicist and long-time student of Jekhowsky's. The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 97).

Physical characteristics

In the Bus–Binzel SMASS classification, Jacqueline is a common, carbonaceous C-type asteroid.

Rotation period

In May 2000, a rotational lightcurve of Jacqueline was obtained from photometric observations by American photometrist Robert Stephens at the Santana Observatory in California. Analysis of the classically shaped bimodal lightcurve gave a well-defined rotation period of hours and a brightness variation of magnitude, indicative of a non-spheroidal shape (). Other measurements by Eric Barbotin and by astronomers at the Palomar Transient Factory gave a similar period of 7.873 and 7.875 hours with an amplitude of 0.72 and 0.43 magnitude, respectively ().

In 2016, a lightcurve was published using modeled photometric data from the Lowell Photometric Database. It gave a concurring sidereal period of 7.87149 hours, as well as two spin axes of (7.0°, 55.0°) and (170.0°, 65.0°) in ecliptic coordinates (λ, β).

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, Jacqueline measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0497 and a diameter of 37.61 kilometers based on an absolute magnitude of 11.0.

Alternative mean-diameter measurements published by the WISE team include (), (), (), () and () with corresponding albedos of (), (), (), () and ().

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.

background-asteroids discoveries-by-benjamin-jekhowsky named-minor-planets c-type-asteroids-(smass) astronomical-objects-discovered-in-1924

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