20020+3840 A 1411 AB (HD 190131)

20^h 01^m 59.20^s +38° 39' 55.4" P.A. 204.00 sep 1.3 mag 8.59,12.30 Sp A3V

Coord 2000	20020+3840		Discov num	A 1411		Comp	AB		Coord arcsec 2000	20 01 59.20 +38 39 55.4
Date first	1906		Date last	2016		Obs	9
Pa first	204		Pa last	203.8		P.A. Now (θ)	203.8°
Sep first	1.1		Sep last	1.318		Sep. Now (ρ)	1.318"
Mag pri	8.59		Mag sec	12.30		delta mag (ΔM)	3.71		Spectral class	A3V (white)
Pri motion ra	+002		Sec motion ra
Pri motion dec	-006		Sec motion dec
Notes

Nature of this double is uncertain.

20020+3840 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 190131	69289	20 01 59 +38 39 55	A 1411 AB	2016	9	204	1.3	8.59	12.30	3.71		<===
Show		69289	20 01 59 +38 39 55	A 1411 AC	2015	5	208	10.2	8.59	13.40	4.81
Show		69289	20 01 59 +38 39 55	A 1411 AD	2015	5	116	22.7	8.59	13.60	5.01

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 190131		Constellation	Cygnus		SAO	69289		Tycho2	3150-01983-1
Gaia DR2	2072415011337665408		HD	190131