20110+5717 ARG  36

Coord 2000	20110+5717		Discov num	ARG  36		Comp			Coord arcsec 2000	20 10 59.84 +57 17 16.8
Date first	1902		Date last	2018		Obs	34
Pa first	129		Pa last	129		P.A. Now (θ)	129°
Sep first	7.8		Sep last	8.0		Sep. Now (ρ)	8"
Mag pri	8.73		Mag sec	9.97		delta mag (ΔM)	1.24		Spectral class	F8 (yellow-white)
Pri motion ra	-019		Sec motion ra	-023
Pri motion dec	-044		Sec motion dec	-044
Notes	N V (See Notes, Proper motion indicates physical)

Visually invisible, K-band or other infrared star rPM=0.081 (< 0.3, Physical double) This double is physical.

Precise pa	128.5		Precise sep	8.023		Constellation	Cygnus		Tycho2	3944-00024-1
Gaia DR2	05402478336		HD	192238

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20110+5717	ARG 36		2004	22	128	7.9	8.73	9.97	F8	DV	201059.84+571716.8
20110+5717	ARG 36		2015	28	128	8.1	8.73	9.97	F8	NV	201059.84+571716.8
20110+5717	ARG 36		2018	30	127	8.1	8.73	9.97	F8	NV	201059.84+571716.8

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