20327+3916 SEI1160AB

Coord 2000	20327+3916		Discov num	SEI1160		Comp	AB		Coord arcsec 2000	20 32 43.51 +39 16 15.8
Date first	1896		Date last	2015		Obs	21
Pa first	54		Pa last	49		P.A. Now (θ)	49°
Sep first	13.4		Sep last	13.9		Sep. Now (ρ)	13.9"
Mag pri	8.20		Mag sec	10.38		delta mag (ΔM)	2.18		Spectral class	B9 (blue-white)
Pri motion ra	+001		Sec motion ra	+001
Pri motion dec	-001		Sec motion dec	+013
Notes

rPM=1.074 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		70175	20 32 44 +39 16 16	SEI 1160 AB	2015	21	49	13.9	8.20	10.38	2.18		<===
Show		70175	20 32 44 +39 16 16	SEI 1159 AC	2015	2	148	21.0	8.20	10.20	2.00

Triple system
3 visible stars in this system

Precise pa	49.3		Precise sep	13.9		Constellation	Cygnus		SAO	70175
HIP	101370		Tycho2	3153-01235-1		Gaia DR2	2064237840252052992		HD	195918
BD	BD+38 4138		Distance	507.61		Distance ly	1655.82

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20327+3916	SEI1160	AB	2007	8	50	14.3	8.20	10.38	B9	D	203243.51+391615.8
20327+3916	SEI1160	AB	2008	9	50	14.3	8.20	10.38	B9	D	203243.51+391615.8
20327+3916	SEI1160	AB	2009	10	51	14.5	8.20	10.38	B9	D	203243.51+391615.8
20327+3916	SEI1160	AB	2010	11	49	14.3	8.20	10.38	B9	D	203243.51+391615.8
20327+3916	SEI1160	AB	2013	13	48	14.1	8.20	10.38	B9		203243.51+391615.8
20327+3916	SEI1160	AB	2014	14	49	14.4	8.20	10.38	B9		203243.51+391615.8
20327+3916	SEI1160	AB	2015	16	49	13.9	8.20	10.38	B9		203243.51+391615.8

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