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20216+3807
SLE1013

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

20216+3807 SLE1013

20^h 21^m 38.99^s +38° 07' 28.6" P.A. 351.00 sep 15.1 mag 11.97,13.37

Coord 2000	20216+3807		Discov num	SLE1013		Comp			Coord arcsec 2000	20 21 38.99 +38 07 28.6
Date first	1985		Date last	2015		Obs	8
Pa first	350		Pa last	351		P.A. Now (θ)	351°
Sep first	15.4		Sep last	15.1		Sep. Now (ρ)	15.1"
Mag pri	11.97		Mag sec	13.37		delta mag (ΔM)	1.4		Spectral class
Pri motion ra	-001		Sec motion ra	-003
Pri motion dec	-003		Sec motion dec	-005
Notes

rPM=0.485

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Precise pa

350.9

Precise sep

15.078

Constellation

Cygnus

Gaia DR2

2061027403746781312

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20216+3807	SLE1013		1998	2	351	15.1	11.50	12.10		D	202138.93+380718.9
20216+3807	SLE1013		2002	3	351	15.1	11.97	13.37			202138.99+380728.6
20216+3807	SLE1013		2010	4	354	14.6	11.97	13.37			202138.99+380728.6
20216+3807	SLE1013		2015	4	351	15.1	11.97	13.37			202138.99+380728.6

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