20040+3847 ALI 914

Coord 2000	20040+3847		Discov num	ALI 914		Comp			Coord arcsec 2000	20 04 01.01 +38 46 40.2
Date first	1928		Date last	2015		Obs	10
Pa first	227		Pa last	230		P.A. Now (θ)	230°
Sep first	16.1		Sep last	14.8		Sep. Now (ρ)	14.8"
Mag pri	12.03		Mag sec	12.23		delta mag (ΔM)	0.2		Spectral class
Pri motion ra	-016		Sec motion ra	-014
Pri motion dec	-021		Sec motion dec	-003
Notes

rPM=0.686 Nature of this double is uncertain.

Precise pa	230.2		Precise sep	14.763		Constellation	Cygnus		Tycho2	3150-03095-1
Gaia DR2	49961539712

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20040+3847	ALI 914		1929	3	227	16.5	12.03	12.60			200401.01+384640.2
20040+3847	ALI 914		1998	4	228	15.3	12.03	12.60			200401.01+384640.2
20040+3847	ALI 914		2002	5	230	15.0	12.03	12.60			200401.01+384640.2
20040+3847	ALI 914		2010	6	227	15.4	12.03	12.23			200401.01+384640.2
20040+3847	ALI 914		2015	6	230	14.8	12.03	12.23			200401.01+384640.2

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