20389+4741 A   746

Coord 2000	20389+4741		Discov num	A   746		Comp			Coord arcsec 2000	20 38 56.75 +47 41 12.4
Date first	1904		Date last	2016		Obs	8
Pa first	143		Pa last	150		P.A. Now (θ)	150°
Sep first	2.1		Sep last	2.0		Sep. Now (ρ)	2"
Mag pri	7.85		Mag sec	11.65		delta mag (ΔM)	3.8		Spectral class	A4IV (white)
Pri motion ra	+010		Sec motion ra	+013
Pri motion dec	-014		Sec motion dec	-014
Notes

rPM=0.157 (< 0.3, Physical double) This double is physical.

Precise pa	150.2		Precise sep	2.01		Constellation	Cygnus		SAO	49895
HIP	101896		Tycho2	3578-02339-1		Gaia DR2	2167649893846978560		HD	196989
BD	BD+47 3157		Distance	166.11		Distance ly	541.85

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20389+4741	A 746		2003	7	149	1.9	7.85	11.65	A4IV		203856.75+474112.4
20389+4741	A 746		2016	8	150	2.0	7.85	11.65	A4IV		203856.75+474112.4

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