19547+3831 ALI 907

Coord 2000	19547+3831		Discov num	ALI 907		Comp			Coord arcsec 2000	19 54 43.33 +38 30 46.5
Date first	1929		Date last	2015		Obs	9
Pa first	26		Pa last	23		P.A. Now (θ)	23°
Sep first	14.3		Sep last	14.6		Sep. Now (ρ)	14.6"
Mag pri	11.68		Mag sec	12.30		delta mag (ΔM)	0.62		Spectral class
Pri motion ra	+001		Sec motion ra	+002
Pri motion dec	+000		Sec motion dec	+000
Notes

rPM=0.5 Nature of this double is uncertain.

Precise pa	23.3		Precise sep	14.571		Constellation	Cygnus		Tycho2	3137-00555-1
Gaia DR2	24715436416

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19547+3831	ALI 907		1998	2	23	14.6	11.68	12.30		D	195443.33+383046.5
19547+3831	ALI 907		2002	3	24	14.6	11.68	12.30		D	195443.33+383046.5
19547+3831	ALI 907		2010	4	23	14.5	11.68	12.30			195443.33+383046.5
19547+3831	ALI 907		2015	5	23	14.6	11.68	12.30			195443.33+383046.5

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