20327+3916 SEI1159AC

Coord 2000	20327+3916		Discov num	SEI1159		Comp	AC		Coord arcsec 2000	20 32 43.51 +39 16 15.8
Date first	1895		Date last	2015		Obs	2
Pa first	146		Pa last	148		P.A. Now (θ)	148°
Sep first	19.7		Sep last	21.0		Sep. Now (ρ)	21"
Mag pri	8.20		Mag sec	10.20		delta mag (ΔM)	2		Spectral class	B9 (blue-white)
Pri motion ra	+003		Sec motion ra
Pri motion dec	+000		Sec motion dec
Notes

Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		70175	20327+3916	SEI1160	AB	1896	2015	21	49	13.9	8.20	10.38	2.18
Show		70175	20327+3916	SEI1159	AC	1895	2015	2	148	21.0	8.20	10.20	2.00		<===

Triple system
3 visible stars in this system

Precise pa	147.5		Precise sep	21		Constellation	Cygnus		SAO	70175
HIP	101370		Tycho2	3153-01235-1		Gaia DR2	40252052992		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	SEI1159	AC	1895	1	146	19.7	8.20	10.20	B9		203243.51+391615.8
20327+3916	SEI1159	AC	2015	2	148	21.0	8.20	10.20	B9		203243.51+391615.8

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