20585+5028 STF 2741 AC

20^h 58^m 30.03^s +50° 27' 42.4" P.A. 355.00 sep 138.6 mag 5.94,11.77 Sp B5Vn dist. 331.13 pc (1080.15 l.y.)

Coord 2000	20585+5028		Discov num	STF2741		Comp	AC		Coord arcsec 2000	20 58 30.03 +50 27 42.4
Date first	1879		Date last	2003		Obs	5
Pa first	356		Pa last	355.4		P.A. Now (θ)	355.4°
Sep first	139.4		Sep last	138.58		Sep. Now (ρ)	138.58"
Mag pri	5.94		Mag sec	11.77		delta mag (ΔM)	5.83		Spectral class	B5Vn (blue-white)
Pri motion ra	+010		Sec motion ra	-003
Pri motion dec	+003		Sec motion dec	-001
Notes	N (See Notes)

rPM=1.303

This double is not physical.

20585+5028 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 199955	33034	20 58 30 +50 27 42	STF 2741 AB	2019	153	24	2.0	5.94	6.79	0.85
Show		33034	20 58 30 +50 27 42	STF 2741 AC	2003	5	355	138.6	5.94	11.77	5.83		<===
Show			20 58 29 +50 30 01	BU 9007 CD	2015	6	50	13.3	12.30	13.30	1.00

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Cygnus		SAO	33034		HIP	103530		Tycho2	3583-01164-1
Gaia DR2	2168990198522326528		HD	199955		HR	8040		ADS	14504
BD	BD+49 3426		Distance	331.13		Distance ly	1080.15