20175+5646 STI2517

Coord 2000	20175+5646		Discov num	STI2517		Comp			Coord arcsec 2000	20 17 32.99 +56 45 23.2
Date first	1898		Date last	2015		Obs	6
Pa first	153		Pa last	151		P.A. Now (θ)	151°
Sep first	14.9		Sep last	16.1		Sep. Now (ρ)	16.1"
Mag pri	11.80		Mag sec	12.47		delta mag (ΔM)	0.67		Spectral class
Pri motion ra	-002		Sec motion ra	+001
Pri motion dec	-001		Sec motion dec	+003
Notes

rPM=1.581 This double is not physical.

Precise pa	150.6		Precise sep	16.104		Constellation	Cygnus		Tycho2	3945-00992-1
Gaia DR2	56569680000

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20175+5646	STI2517		1917	2	153	15.9	12.47	12.50			201733.94+564509.0
20175+5646	STI2517		2003	4	151	16.1	11.80	12.47			201732.99+564523.2
20175+5646	STI2517		2010	5	151	16.1	11.80	12.47			201732.99+564523.2
20175+5646	STI2517		2015	6	151	16.1	11.80	12.47			201732.99+564523.2

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