20001+3842 SEI 777

Coord 2000	20001+3842		Discov num	SEI 777		Comp			Coord arcsec 2000	20 00 01.96 +38 41 58.9
Date first	1896		Date last	2017		Obs	14
Pa first	224		Pa last	222		P.A. Now (θ)	222°
Sep first	26.6		Sep last	25.0		Sep. Now (ρ)	25"
Mag pri	11.62		Mag sec	11.77		delta mag (ΔM)	0.15		Spectral class	A0 (white)
Pri motion ra	-004		Sec motion ra	+005
Pri motion dec	-007		Sec motion dec	-002
Notes

rPM=1.277 This double is not physical.

Precise pa	222.3		Precise sep	25.033		Constellation	Cygnus		SAO	69239
Tycho2	3150-03113-1		Gaia DR2	14037526400

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20001+3842	SEI 777		1998	6	222	25.2	11.62	11.77		D	200001.96+384158.9
20001+3842	SEI 777		2002	7	222	25.1	11.62	11.77		D	200001.96+384158.9
20001+3842	SEI 777		2010	8	222	24.9	11.62	11.77	A0		200001.96+384158.9
20001+3842	SEI 777		2017	9	222	25.0	11.62	11.77	A0		200001.96+384158.9

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