19557+3824 ALI 908

Coord 2000	19557+3824		Discov num	ALI 908		Comp			Coord arcsec 2000	19 55 42.81 +38 24 10.8
Date first	1929		Date last	2010		Obs	4
Pa first	67		Pa last	63		P.A. Now (θ)	63°
Sep first	12.3		Sep last	12.3		Sep. Now (ρ)	12.3"
Mag pri	11.14		Mag sec	13.00		delta mag (ΔM)	1.86		Spectral class	B5 (blue-white)
Pri motion ra	-004		Sec motion ra	-003
Pri motion dec	-008		Sec motion dec	-003
Notes

rPM=0.57 Nature of this double is uncertain.

Precise pa	62.7		Precise sep	12.27		Constellation	Cygnus		Tycho2	3137-00709-1
HD	226608		last precise pa	62.7		last precise sep	12.27

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19557+3824	ALI 908		1998	2	63	12.0	11.14	13.00		D	195542.81+382410.8
19557+3824	ALI 908		2002	3	63	12.0	11.14	13.00		D	195542.81+382410.8
19557+3824	ALI 908		2010	4	63	12.1	11.14	13.00	B5		195542.81+382410.8

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