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20337+5616
HJ 1545

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

20337+5616 HJ 1545

20^h 33^m 51.80^s +56° 15' 59.2" P.A. 180.00 sep 15.5 mag 11.46,11.32

Coord 2000	20337+5616		Discov num	HJ 1545		Comp			Coord arcsec 2000	20 33 51.80 +56 15 59.2
Date first	1828		Date last	2015		Obs	14
Pa first	175		Pa last	180		P.A. Now (θ)	180°
Sep first	20.0		Sep last	15.5		Sep. Now (ρ)	15.5"
Mag pri	11.46		Mag sec	11.32		delta mag (ΔM)	0.14		Spectral class
Pri motion ra	+002		Sec motion ra	-003
Pri motion dec	-005		Sec motion dec	+014
Notes

rPM=1.372

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	180.2		Precise sep	15.472		Constellation	Cygnus		Tycho2	3958-01150-1
Gaia DR2	2186755836826769408

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20337+5616	HJ 1545		1999	6	180	15.9	11.46	11.32		D	203351.80+561559.2
20337+5616	HJ 1545		2003	8	180	15.7	11.46	11.32		D	203351.80+561559.2
20337+5616	HJ 1545		2010	9	180	15.5	11.46	11.32			203351.80+561559.2
20337+5616	HJ 1545		2015	10	180	15.5	11.46	11.32			203351.80+561559.2

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