19521+4548 SMA 105

Coord 2000	19521+4548		Discov num	SMA 105		Comp			Coord arcsec 2000	19 52 01.76 +45 49 04.1
Date first	1892		Date last	2010		Obs	8
Pa first	318		Pa last	322		P.A. Now (θ)	322°
Sep first	12.0		Sep last	12.5		Sep. Now (ρ)	12.5"
Mag pri	12.30		Mag sec	12.70		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	-003		Sec motion ra	+002
Pri motion dec	-003		Sec motion dec	+007
Notes

rPM=1.536 This double is not physical.

Precise pa	322.2		Precise sep	12.54		Cdsa2 id	SMA 105		Constellation	Cygnus
Ra deg	19.867155555555556		De deg	45.81780555555556		last precise pa	322.2		last precise sep	12.54

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19521+4548	SMA 105		1921	4	317	12.1	11.00	11.50			195260.00+454800.0
19521+4548	SMA 105		1998	5	322	12.5	12.40	12.70		D	195201.76+454904.1
19521+4548	SMA 105		2007	6	322	12.5	12.40	12.70		D	195201.76+454904.1
19521+4548	SMA 105		2010	8	322	12.4	12.30	12.70			195201.76+454904.1

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