18253+2805 HDS 2604 Aa,Ab

18^h 25^m 20.37^s +28° 04' 59.0" P.A. 212.00 sep 0.7 mag 8.69,11.30 Sp B9 dist. 641.03 pc (2091.04 l.y.)

Coord 2000	18253+2805		Discov num	HDS2604		Comp	Aa,Ab		Coord arcsec 2000	18 25 20.37 +28 04 59.0
Date first	1991		Date last	2016		Obs	4
Pa first	208		Pa last	212.1		P.A. Now (θ)	212.1°
Sep first	0.7		Sep last	0.729		Sep. Now (ρ)	0.729"
Mag pri	8.69		Mag sec	11.30		delta mag (ΔM)	2.61		Spectral class	B9 (blue-white)
Pri motion ra	-003		Sec motion ra
Pri motion dec	+002		Sec motion dec
Notes

Nature of this double is uncertain.

18253+2805 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		86027	18 25 20 +28 04 59	HDS 2604 Aa,Ab	2016	4	212	0.7	8.69	11.30	2.61		<===
Show	HD 169818	86027	18 25 20 +28 04 59	HO 85 AB	2016	14	196	4.9	8.68	12.00	3.32

Triple system
2 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Hercules		SAO	86027		HIP	90287		Tycho2	2114-00276-1
Gaia DR2	4586495863438223616		HD	169818		BD	BD+28 2996		Distance	641.03
Distance ly	2091.04