21009+5929 MLR 241 (HD 239547)

Coord 2000	21009+5929		Discov num	MLR 241		Comp			Coord arcsec 2000	21 00 54.53 +59 29 06.9
Date first	1971		Date last	2016		Obs	13
Pa first	168		Pa last	174.1		P.A. Now (θ)	174.1°
Sep first	0.9		Sep last	0.935		Sep. Now (ρ)	0.935"
Mag pri	10.41		Mag sec	10.53		delta mag (ΔM)	0.12		Spectral class	G (yellow)
Pri motion ra	-018		Sec motion ra	-018
Pri motion dec	+005		Sec motion dec	+005
Notes	N (See Notes)

Nature of this double is uncertain.

Name	HD 239547		Constellation	Cepheus		SAO	33071		Tycho2	3964-00809-1
Gaia DR2	2190889828740344320		HD	239547

discov_num	notes	refcode
MLR 241	No significant movement since first resolution.	Drd2009

refcode	metd	author	reference
Drd2009	C j	Durand, P.	2009O&T....74...23D
Drd2009		Obs. et Travaux 74, 23, 2009

idgroup	discov	author
1	MLR	Muller, P.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21009+5929	MLR 241		1995	7	172	0.8	10.41	10.53	G		210054.53+592906.9
21009+5929	MLR 241		2004	8	168	0.9	10.41	10.53	G	N	210054.53+592906.9
21009+5929	MLR 241		2008	9	173	0.9	10.41	10.53	G	N	210054.53+592906.9
21009+5929	MLR 241		2015	10	173	0.9	10.41	10.53	G	N	210054.53+592906.9
21009+5929	MLR 241		2016	11	174	0.9	10.41	10.53	G	N	210054.53+592906.9

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS