20189+4522 ARG  37

Coord 2000	20189+4522		Discov num	ARG  37		Comp			Coord arcsec 2000	20 18 51.42 +45 21 32.5
Date first	1905		Date last	2018		Obs	11
Pa first	195		Pa last	194		P.A. Now (θ)	194°
Sep first	15.5		Sep last	14.1		Sep. Now (ρ)	14.1"
Mag pri	9.60		Mag sec	12.40		delta mag (ΔM)	2.8		Spectral class	F5 (yellow-white)
Pri motion ra	-008		Sec motion ra	-021
Pri motion dec	-012		Sec motion dec	-001
Notes

rPM=0.81 This double is not physical.

Precise pa	193.9		Precise sep	14.138		Constellation	Cygnus		SAO	49461
Tycho2	3572-00216-1		Gaia DR2	36363279104

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20189+4522	ARG 37		2000	3	194	14.6	9.60	12.40	F5	D	201851.42+452132.5
20189+4522	ARG 37		2003	4	194	14.6	9.60	12.40	F5	D	201851.42+452132.5
20189+4522	ARG 37		2010	5	195	14.5	9.60	12.40	F5		201851.42+452132.5
20189+4522	ARG 37		2015	6	194	14.5	9.60	12.40	F5		201851.42+452132.5
20189+4522	ARG 37		2018	7	194	14.1	9.60	12.40	F5		201851.42+452132.5

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