2009PASP..121..359L

Query : 2009PASP..121..359L

2009PASP..121..359L - Publ. Astron. Soc. Pac., 121, 359-364 (2009/April-0)

A close binary star resolved from occultation by 87 Sylvia.

LIN C.-L., ZHANG Z.-W., CHEN W.P., KING S.-K., LIN H.-C., WANG J.-H., MONDAL S., ALCOCK C., AXELROD T., BIANCO F.B., BYUN Y.-I., COEHLO N.K., COOK K.H., DAVE R., DE PATER I., DESCAMPS P., LEHNER M.J., KIM D.-W., LEE T., LISSAUER J.J., MARSHALL S.L., PORRATA R., PROTOPAPAS P., RICE J.A., SCHWAMB M.E., WANG S.-Y. and WEN C.-Y.

Abstract (from CDS):

The star BD +29 1748 was resolved to be a close binary from its occultation by the asteroid 87 Sylvia on 2006 December 18 UT. Four telescopes were used to observe this event at two sites separated by some 80 km. Two flux drops were observed at one site, whereas only one flux drop was detected at the other. From the long-term variation of Sylvia, we inferred the probable shape of the shadow during the occultation, and this in turn constrains the binary parameters: the two components of BD +29 1748 have a projected separation of 0.097-0.140 on the sky with a position angle 104°-110°. The asteroid was clearly resolved, with a size scale ranging from 130 to 290 km as projected onto the occultation direction, consistent with the size dimensions, measured by direct adaptive optics imaging. No occultation was detected for either of the two known moonlets of 87 Sylvia.

Abstract Copyright: ∼

Journal keyword(s): Stars

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	BD+29 1748	*	08 25 01.6609504656	+28 33 55.276189776		10.43	9.96			F8	5	0

Query : 2009PASP..121..359L

Basic data :

BD+29 1748 -- Star

* (BD,AG,...), NIR (2MASS)

08 25 01.6609504656 +28 33 55.276189776 (Optical) [ 0.1789 0.1344 90 ] A 2020yCat.1350....0G

08 21 58.3867273678 +28 43 44.143835826 [ 0.1789 0.1344 90 ]

194.6352550383311 +31.8996386176758 [ 0.1789 0.1344 90 ]

-10.159 -32.688 [0.213 0.143 90] A 2020yCat.1350....0G

V(km/s) -18.55 [0.38] / z(spectroscopic) -0.000062 [0.000001] / cz -18.55 [0.38] (Opt) A 2018yCat.1345....0G

3.3041 [0.216] A 2020yCat.1350....0G

F8 D ~

B 10.43 [0.04] D 2000A&A...355L..27H

V 9.96 [0.04] D 2000A&A...355L..27H

G 9.839635 [0.002814] C 2020yCat.1350....0G

J 9.043 [0.026] C 2003yCat.2246....0C

H 8.847 [0.024] C 2003yCat.2246....0C

K 8.801 [0.022] C 2003yCat.2246....0C

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`BD+29 1748`	`2MASS J08250165+2833553`	`TIC 302303562`	`Gaia DR2 707389364283812992`
`AG+28 902`	`PPM 98680`	`TYC 1947-293-1`	`Gaia DR3 707389364285110144`
`GSC 01947-00293`	`SAO 80166`	`YZ 28 4517`	`Gaia DR1 707389394348153856`

References (5 between 1850 and 2026) (Total 5)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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`BD+29 1748`	`AG+28 902`	`GSC 01947-00293`	`2MASS J08250165+2833553`	`PPM 98680`
`SAO 80166`	`TYC 1947-293-1`	`Gaia DR2 707389364283812992`	`Gaia DR3 707389364285110144`	`Gaia DR1 707389394348153856`

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