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20030+3701
COU2211

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

20030+3701 COU2211

20^h 03^m 01.60^s +37° 01' 37.1" P.A. 257.00 sep 1.0 mag 11.37,11.59 Sp Am

Coord 2000	20030+3701		Discov num	COU2211		Comp			Coord arcsec 2000	20 03 01.60 +37 01 37.1
Date first	1984		Date last	2016		Obs	6
Pa first	256		Pa last	257		P.A. Now (θ)	257°
Sep first	0.8		Sep last	1.0		Sep. Now (ρ)	1"
Mag pri	11.37		Mag sec	11.59		delta mag (ΔM)	0.22		Spectral class	Am (white)
Pri motion ra	-018		Sec motion ra	-018
Pri motion dec	+005		Sec motion dec	+005
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	256.5		Precise sep	0.973		Constellation	Cygnus		Tycho2	2682-01821-1
Gaia DR2	2060159648592060032		HD	227344

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20030+3701	COU2211		1996	4	256	0.9	11.37	11.59	Am		200301.60+370137.1
20030+3701	COU2211		2009	5	256	0.9	11.37	11.59	Am		200301.60+370137.1

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