2017IBVS.6222....1H

Query : 2017IBVS.6222....1H

2017IBVS.6222....1H - IAU Inform. Bull. Var. Stars, 6222, 1-1 (2017/November-0)

14 years of photometric monitoring of MM Dra and a suspected variable in the field of blazar 1ES 1959+650.

HICKS S., LANEY C.D., CARINI M.T., RICHARDSON W.N., ANTONIUK K. and PIT N.

Abstract (from CDS):

We present a 14 year photometric study of one confirmed and one suspected variable star in the field of the TeV blazar 1ES 1959+650. Both stars have previously been used as comparison stars for the blazar 1ES 1959+650, and are identified as star 3 and star 5 by Villata et. al. (1998). Star 5 is also known as MM Dra and is an eclipsing binary of the EW UMa type, exhibiting evidence of the O'Connell effect. A very recent calibration based on Gaia parallaxes suggests a distance of about 600 pc. Star 3 is a variable star of undetermined type and a color analysis suggests it is a late K or early M type star.

Abstract Copyright: © Copyright: Konkoly Observatory, 2017

Journal keyword(s):

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

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 V* MM Dra EB* 19 59 44.2589217744 +65 10 05.080490292       14.34   ~ 9 0

Query : 2017IBVS.6222....1H

Basic data :
V* MM Dra -- Eclipsing Binary
Other object types: otypes_help 		* (UCAC4,[VRL98],...), EB* (2017ARep), V* (V*), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 59 44.2589217744 +65 10 05.080490292 (Optical) [ 0.2921 0.3178 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 59 15.3810413483 +65 01 46.910434974 [ 0.2921 0.3178 90 ]
Gal coord. (ep=J2000) : 		098.0088056931471 +17.7029284708335 [ 0.2921 0.3178 90 ]
Proper motions mas/yr : 		-15.000 -19.144 [0.401 0.365 90] A 2020yCat.1350....0G
Parallaxes (mas): 		1.7722 [0.321] A 2020yCat.1350....0G
Fluxes (5) :
R 14.34 [0.14] E 2012yCat.1322....0Z
G 14.411619 [0.007382] C 2020yCat.1350....0G
J 12.713 [0.021] C 2003yCat.2246....0C
H 12.198 [0.023] C 2003yCat.2246....0C
K 12.018 [0.022] C 2003yCat.2246....0C
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Identifiers (7) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

UCAC4 776-039999 TIC 256615555 [VRL98] 1ES 1959+650 5 Gaia DR2 2247560376025217280
2MASS J19594427+6510049 V* MM Dra Gaia DR3 2247560376025217280

References (9 between 1850 and 2026) (Total 9)
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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Collections of Measurements Description of Measurements

Var : 2    Plx : 2    PM : 2   

   

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UCAC4 776-039999 2MASS J19594427+6510049 V* MM Dra Gaia DR3 2247560376025217280 Gaia DR2 2247560376025217280

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