19501+3158 ES 2427AB

Coord 2000	19501+3158		Discov num	ES 2427		Comp	AB		Coord arcsec 2000	19 50 01.93 +31 57 57.5
Date first	1930		Date last	2015		Obs	10
Pa first	64		Pa last	50		P.A. Now (θ)	50°
Sep first	4.0		Sep last	16.1		Sep. Now (ρ)	16.1"
Mag pri	10.70		Mag sec	12.40		delta mag (ΔM)	1.7		Spectral class	F8 (yellow-white)
Pri motion ra	-119		Sec motion ra	+026
Pri motion dec	-121		Sec motion dec	-001
Notes

rPM=1.109 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			19 50 02 +31 57 58	HDS 2823 Aa,Ab	1991	1	91	0.7	10.33	13.79	3.46
Show			19 50 02 +31 57 58	ES 2427 AB	2015	10	50	16.1	10.70	12.40	1.70		<===

Triple system
2 visible stars in this system

Precise pa	49.9		Precise sep	16.067		Constellation	Cygnus		HIP	97579
Tycho2	2673-03038-1		Gaia DR2	2033792908747408384		HD	331288		BD	BD+31 3800
Distance	62.42		Distance ly	203.61

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19501+3158	ES 2427	AB	1933	2	74	4.3	10.70	12.40	F8		195001.93+315757.5
19501+3158	ES 2427	AB	2011	3	50	15.6	10.70	12.40	F8		195001.93+315757.5
19501+3158	ES 2427	AB	2015	6	50	16.0	10.70	12.40	F8		195001.93+315757.5

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