19420+3802 SEI 662

Coord 2000	19420+3802		Discov num	SEI 662		Comp			Coord arcsec 2000	19 41 54.64 +38 01 53.2
Date first	1896		Date last	2015		Obs	10
Pa first	279		Pa last	282		P.A. Now (θ)	282°
Sep first	29.0		Sep last	27.9		Sep. Now (ρ)	27.9"
Mag pri	9.99		Mag sec	12.65		delta mag (ΔM)	2.66		Spectral class	A2 (white)
Pri motion ra	+001		Sec motion ra	+011
Pri motion dec	-002		Sec motion dec	+005
Notes

rPM=1.01 This double is not physical.

Precise pa	281.8		Precise sep	27.925		Constellation	Cygnus		Tycho2	3136-00527-1
Gaia DR2	88893465344		HD	225429

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19420+3802	SEI 662		1998	3	281	28.1	9.98	12.30		D	194154.64+380153.2
19420+3802	SEI 662		2002	4	282	28.0	9.98	12.30		D	194154.64+380153.2
19420+3802	SEI 662		2010	5	282	28.0	9.99	12.65	A2		194154.64+380153.2
19420+3802	SEI 662		2015	6	282	27.9	9.99	12.65	A2		194154.64+380153.2

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