19453+3048 AG  237

Coord 2000	19453+3048		Discov num	AG  237		Comp			Coord arcsec 2000	19 45 20.11 +30 48 02.2
Date first	1901		Date last	2011		Obs	25
Pa first	145		Pa last	141		P.A. Now (θ)	141°
Sep first	1.9		Sep last	2.4		Sep. Now (ρ)	2.4"
Mag pri	8.82		Mag sec	9.61		delta mag (ΔM)	0.79		Spectral class	A5 (white)
Pri motion ra	-003		Sec motion ra
Pri motion dec	+002		Sec motion dec
Notes

Nature of this double is uncertain.

Precise pa	140.7		Precise sep	2.425		Constellation	Cygnus		Tycho2	2656-01152-1
HD	186789		last precise pa	140.7		last precise sep	2.425

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19453+3048	AG 237		1999	21	140	2.4	8.82	9.61	A5		194520.11+304802.2
19453+3048	AG 237		2006	23	140	2.4	8.82	9.61	A5		194520.11+304802.2
19453+3048	AG 237		2009	24	141	2.4	8.82	9.61	A5		194520.11+304802.2
19453+3048	AG 237		2011	26	141	2.4	8.82	9.61	A5		194520.11+304802.2

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