20237+4632 HJ 1513

Coord 2000	20237+4632		Discov num	HJ 1513		Comp			Coord arcsec 2000	20 23 39.36 +46 31 40.5
Date first	1828		Date last	2015		Obs	16
Pa first	322		Pa last	325		P.A. Now (θ)	325°
Sep first	8.0		Sep last	13.8		Sep. Now (ρ)	13.8"
Mag pri	8.45		Mag sec	11.50		delta mag (ΔM)	3.05		Spectral class	B8 (blue-white)
Pri motion ra	-003		Sec motion ra	-005
Pri motion dec	-007		Sec motion dec	-007
Notes

rPM=0.232 (< 0.3, Physical double) This double is physical.

Precise pa	325.3		Precise sep	13.79		Constellation	Cygnus		SAO	49573
HIP	100571		Tycho2	3572-01899-1		Gaia DR2	20165958528		HD	194423
BD	BD+46 2927		Distance	495.05		Distance ly	1614.85

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20237+4632	HJ 1513		2003	10	326	13.9	8.45	11.50	B8	D	202339.36+463140.5
20237+4632	HJ 1513		2010	13	324	13.1	8.45	11.50	B8		202339.36+463140.5
20237+4632	HJ 1513		2015	16	325	13.8	8.45	11.50	B8		202339.36+463140.5

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