20301+4857 GUI  32AD

Coord 2000	20301+4857		Discov num	GUI  32		Comp	AD		Coord arcsec 2000	20 30 03.53 +48 57 05.6
Date first	1899		Date last	2015		Obs	7
Pa first	45		Pa last	44		P.A. Now (θ)	44°
Sep first	133.1		Sep last	131.1		Sep. Now (ρ)	131.1"
Mag pri	4.92		Mag sec	11.99		delta mag (ΔM)	7.07		Spectral class	B2.5IV (blue-white)
Pri motion ra	+011		Sec motion ra	-002
Pri motion dec	+007		Sec motion dec	-005
Notes	N (See Notes)

rPM=1.357 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Ome1 Cyg	49712	20 30 04 +48 57 06	BU 669 AB	2013	10	336	15.0	4.95	12.90	7.95
Show		49712	20 30 04 +48 57 06	BU 669 AC	2013	11	89	55.8	4.92	11.77	6.85
Show		49712	20 30 04 +48 57 06	GUI 32 AD	2015	7	44	131.1	4.92	11.99	7.07		<===

Quadruple system
4 visible stars in this system

Precise pa	44.3		Precise sep	131.057		Constellation	Cygnus		SAO	49712
HIP	101138		Tycho2	3581-02031-1		Gaia DR2	2083947891862120192		HD	195556
HR	7844		GC	28537		BD	BD+48 3142		Flamsteed	45 Cygni
Flamsteed name	45 Cyg		Distance	278.55		Distance ly	908.63

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20301+4857	GUI 32	AD	2000	4	44	131.3	4.95		B2.5IV	D	203003.53+485705.6
20301+4857	GUI 32	AD	2003	5	44	131.6	4.95	12.10	B2.5IV	N D	203003.53+485705.6
20301+4857	GUI 32	AD	2013	6	44	130.9	4.92	11.99	B2.5IV	N	203003.53+485705.6
20301+4857	GUI 32	AD	2015	7	44	131.1	4.92	11.99	B2.5IV	N	203003.53+485705.6

If you need more information about this double, apply for a data request form to the WDS.