20191+3635 SEI1080

Coord 2000	20191+3635		Discov num	SEI1080		Comp			Coord arcsec 2000	20 19 08.18 +36 34 29.7
Date first	1896		Date last	2015		Obs	9
Pa first	83		Pa last	72		P.A. Now (θ)	72°
Sep first	24.4		Sep last	22.6		Sep. Now (ρ)	22.6"
Mag pri	13.10		Mag sec	14.60		delta mag (ΔM)	1.5		Spectral class
Pri motion ra	+000		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes	R (Red magnitudes)

Visually invisible, K-band or other infrared star Nature of this double is uncertain.

Precise pa	71.7		Precise sep	22.563		Constellation	Cygnus		SAO	69829
Tycho2	2684-01981-1		Gaia DR2	30820894720

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20191+3635	SEI1080		1896	1	263	24.4	10.50	11.00		N	201904.25+363507.5
20191+3635	SEI1080		2008	2	253	22.5	10.50	11.00		N	201904.25+363507.5
20191+3635	SEI1080		2015	5	72	22.6	13.10	14.60		R	201908.18+363429.7

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