19519+3407 SEI 706

Coord 2000	19519+3407		Discov num	SEI 706		Comp			Coord arcsec 2000	19 51 50.99 +34 07 34.0
Date first	1894		Date last	2015		Obs	13
Pa first	137		Pa last	140		P.A. Now (θ)	140°
Sep first	11.3		Sep last	12.3		Sep. Now (ρ)	12.3"
Mag pri	11.33		Mag sec	11.42		delta mag (ΔM)	0.09		Spectral class
Pri motion ra	+001		Sec motion ra	+005
Pri motion dec	+001		Sec motion dec	-006
Notes

rPM=1.032 This double is not physical.

Precise pa	139.7		Precise sep	12.256		Constellation	Cygnus		SAO	68978
Tycho2	2677-00030-1		Gaia DR2	66029531520

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19519+3407	SEI 706		2006	6	139	12.6	11.33	11.80		D	195150.99+340734.0
19519+3407	SEI 706		2010	8	139	11.7	11.33	11.42			195150.99+340734.0
19519+3407	SEI 706		2015	9	140	12.2	11.33	11.42			195150.99+340734.0

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