20178+3645 SEI1067

Coord 2000	20178+3645		Discov num	SEI1067		Comp			Coord arcsec 2000	20 17 47.23 +36 44 13.5
Date first	1896		Date last	2015		Obs	11
Pa first	55		Pa last	58		P.A. Now (θ)	58°
Sep first	15.2		Sep last	16.6		Sep. Now (ρ)	16.6"
Mag pri	11.32		Mag sec	11.30		delta mag (ΔM)	0.02		Spectral class	A0:V: (white)
Pri motion ra	-018		Sec motion ra	-003
Pri motion dec	-007		Sec motion dec	-009
Notes

rPM=0.784 Nature of this double is uncertain.

Precise pa	58.4		Precise sep	16.606		Constellation	Cygnus		Tycho2	2684-01790-1
Gaia DR2	20740184960

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20178+3645	SEI1067		1998	5	58	16.4	11.32	11.30		D	201747.23+364413.5
20178+3645	SEI1067		2002	6	58	16.5	11.32	11.30		D	201747.23+364413.5
20178+3645	SEI1067		2015	7	58	16.6	11.32	11.30	A0:V:		201747.23+364413.5

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