20598+3126 GYL 44

Coord 2000	20598+3126		Discov num	GYL  44		Comp			Coord arcsec 2000	20 59 48.99 +31 26 26.5
Date first	1893		Date last	2015		Obs	16
Pa first	2		Pa last	1.9		P.A. Now (θ)	1.9°
Sep first	50.0		Sep last	51.222		Sep. Now (ρ)	51.222"
Mag pri	10.74		Mag sec	11.00		delta mag (ΔM)	0.26		Spectral class	A5 (white)
Pri motion ra	-006		Sec motion ra	+000
Pri motion dec	-004		Sec motion dec	+003
Notes	N (See Notes)

rPM=1.279 This double is not physical.

Constellation

Cygnus

Tycho2

2688-01249-1

Gaia DR2

1864913562013458432

DM

BD+30 4272

discov_num	notes	refcode
GYL 44	B is BD+30@4272.

refcode	metd	author	reference
Gyl1958	Pa j	Goyal, A.N.	1958AJ.....63..147G
Gyl1958		AJ 63, 147, 1958
Gyl1962	Pa j	Goyal, A.N.	1962MNRAS.123..413G
Gyl1962		MNRAS 123, 413, 1962
Gyl1964	Pa j	Goyal, A.N.	1964MNRAS.127..215G
Gyl1964		MNRAS 127, 215, 1964
Gyl1966	Pa j	Goyal, A.N.	1966MNRAS.133...15G
Gyl1966		MNRAS 133, 15, 1966
Gyl1968	Pa j	Goyal, A.N.	1968AJ.....73..366G
Gyl1968		AJ 73, 366, 1968
Gyl1970	Pa j	Goyal, A.N.	1970MNRAS.150..235G
Gyl1970		MNRAS 150, 235, 1970

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20598+3126	GYL 44		1999	10	2	51.1	10.74	11.00	A5	N D	205948.99+312626.5
20598+3126	GYL 44		2002	11	2	51.1	10.74	11.00	A5	N D	205948.99+312626.5
20598+3126	GYL 44		2010	12	2	51.2	10.74	11.00	A5	N	205948.99+312626.5
20598+3126	GYL 44		2015	13	2	51.2	10.74	11.00	A5	N	205948.99+312626.5

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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