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20032+5028
HO 454

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20032+5028 HO 454

20^h 03^m 13.50^s +50° 27' 53.7" P.A. 53.00 sep 5.9 mag 7.55,11.36 Sp A0 dist. 194.55 pc (634.62 l.y.)

Coord 2000	20032+5028		Discov num	HO 454		Comp			Coord arcsec 2000	20 03 13.50 +50 27 53.7
Date first	1889		Date last	2015		Obs	11
Pa first	56		Pa last	53		P.A. Now (θ)	53°
Sep first	5.5		Sep last	5.9		Sep. Now (ρ)	5.9"
Mag pri	7.55		Mag sec	11.36		delta mag (ΔM)	3.81		Spectral class	A0 (white)
Pri motion ra	+004		Sec motion ra	+009
Pri motion dec	-023		Sec motion dec	-019
Notes

rPM=0.274 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	53		Precise sep	5.934		Constellation	Cygnus		SAO	32237
HIP	98734		Tycho2	3566-00086-1		Gaia DR2	2087932178399553664		HD	190546
BD	BD+50 2965		Distance	194.55		Distance ly	634.62

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20032+5028	HO 454		2000	6	53	6.0	7.55	11.36	A0	D	200313.50+502753.7
20032+5028	HO 454		2009	7	53	6.0	7.55	11.36	A0		200313.50+502753.7
20032+5028	HO 454		2010	7	52	5.7	7.55	11.36	A0		200313.50+502753.7
20032+5028	HO 454		2015	8	53	6.0	7.55	11.36	A0		200313.50+502753.7

If you need more information about this double, apply for a data request form to the WDS.