20176+3643 SLE 988

Coord 2000	20176+3643		Discov num	SLE 988		Comp			Coord arcsec 2000	20 17 38.41 +36 42 34.0
Date first	1985		Date last	2015		Obs	8
Pa first	113		Pa last	115		P.A. Now (θ)	115°
Sep first	10.9		Sep last	10.8		Sep. Now (ρ)	10.8"
Mag pri	11.71		Mag sec	13.10		delta mag (ΔM)	1.39		Spectral class
Pri motion ra	-002		Sec motion ra	+005
Pri motion dec	-003		Sec motion dec	-017
Notes

rPM=0.883 This double is not physical.

Precise pa	114.5		Precise sep	10.836		Constellation	Cygnus		Tycho2	2684-01893-1
Gaia DR2	75909596288

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20176+3643	SLE 988		1985	1	113	10.9	11.40	12.70			201738.16+364317.0
20176+3643	SLE 988		1998	2	114	10.8	11.71	13.10			201738.41+364234.0
20176+3643	SLE 988		2002	3	114	10.9	11.71	13.10			201738.41+364234.0
20176+3643	SLE 988		2015	4	115	10.9	11.71	13.10			201738.41+364234.0

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