20112+3718 SEI 965

Coord 2000	20112+3718		Discov num	SEI 965		Comp			Coord arcsec 2000	20 11 12.60 +37 17 25.5
Date first	1896		Date last	2015		Obs	10
Pa first	221		Pa last	220		P.A. Now (θ)	220°
Sep first	20.0		Sep last	20.5		Sep. Now (ρ)	20.5"
Mag pri	11.69		Mag sec	12.20		delta mag (ΔM)	0.51		Spectral class
Pri motion ra	-002		Sec motion ra	+001
Pri motion dec	-002		Sec motion dec	-003
Notes

rPM=1 This double is not physical.

Precise pa	219.7		Precise sep	20.471		Constellation	Cygnus		SAO	69573
Tycho2	2683-01415-1		Gaia DR2	97987097984

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20112+3718	SEI 965		1998	3	220	20.6	11.69	12.20		D	201112.60+371725.5
20112+3718	SEI 965		2002	4	220	20.5	11.69	12.20		D	201112.60+371725.5
20112+3718	SEI 965		2010	5	219	21.2	11.69	12.20			201112.60+371725.5
20112+3718	SEI 965		2015	6	220	20.5	11.69	12.20			201112.60+371725.5

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