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20238+3531
SEI1114

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

20238+3531 SEI1114

20^h 23^m 48.91^s +35° 30' 45.2" P.A. 55.00 sep 18.1 mag 12.24,12.03

Coord 2000	20238+3531		Discov num	SEI1114		Comp			Coord arcsec 2000	20 23 48.91 +35 30 45.2
Date first	1896		Date last	2015		Obs	13
Pa first	54		Pa last	55		P.A. Now (θ)	55°
Sep first	17.9		Sep last	18.1		Sep. Now (ρ)	18.1"
Mag pri	12.24		Mag sec	12.03		delta mag (ΔM)	0.21		Spectral class
Pri motion ra	+003		Sec motion ra	-003
Pri motion dec	-004		Sec motion dec	-004
Notes

rPM=1.2

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Precise pa	54.5		Precise sep	18.12		Constellation	Cygnus		Tycho2	2680-00010-1
Gaia DR2	2057190108162866944

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20238+3531	SEI1114		1998	6	55	18.2	12.24	12.03		D	202348.91+353045.2
20238+3531	SEI1114		2002	7	55	18.2	12.24	12.03		D	202348.91+353045.2
20238+3531	SEI1114		2010	8	55	17.9	12.24	12.03			202348.91+353045.2
20238+3531	SEI1114		2015	9	55	18.1	12.24	12.03			202348.91+353045.2

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