20070+3651 SEI 889

Coord 2000	20070+3651		Discov num	SEI 889		Comp			Coord arcsec 2000	20 07 02.65 +36 51 19.0
Date first	1896		Date last	2015		Obs	11
Pa first	211		Pa last	209		P.A. Now (θ)	209°
Sep first	7.0		Sep last	9.0		Sep. Now (ρ)	9"
Mag pri	9.39		Mag sec	12.20		delta mag (ΔM)	2.81		Spectral class	B8 (blue-white)
Pri motion ra	+004		Sec motion ra	-010
Pri motion dec	-002		Sec motion dec	-010
Notes

rPM=1.14 This double is not physical.

Precise pa	208.5		Precise sep	8.987		Constellation	Cygnus		SAO	69437
Tycho2	2683-02781-1		Gaia DR2	82778885760		HD	227741

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20070+3651	SEI 889		1998	4	209	8.7	9.39	12.20	B8	D	200702.65+365119.0
20070+3651	SEI 889		2002	5	208	8.7	9.39	12.20	B8	D	200702.65+365119.0
20070+3651	SEI 889		2010	6	209	8.9	9.39	12.20	B8		200702.65+365119.0
20070+3651	SEI 889		2015	7	209	9.0	9.39	12.20	B8		200702.65+365119.0

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