18597+1615 SOZ 25 AD (HD 176441)

Coord 2000	18597+1615		Discov num	SOZ  25		Comp	AD		Coord arcsec 2000	18 59 42.52 +16 15 09.2
Date first	2000		Date last	2015		Obs	6
Pa first	208		Pa last	207.8		P.A. Now (θ)	207.8°
Sep first	18.4		Sep last	18.423		Sep. Now (ρ)	18.423"
Mag pri	6.10		Mag sec	12.10		delta mag (ΔM)	6		Spectral class	F5+M4 (yellow-white/red)
Pri motion ra	-104		Sec motion ra	-097
Pri motion dec	-123		Sec motion dec	-130
Notes	V K (Proper motion indicates physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes rPM=0.061 (< 0.3, Physical double) This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		104328	18 59 43 +16 15 09	TOK 622 AB	2016	8	267	999.9	7.06	12.90	5.84
Show		104328	18 59 43 +16 15 09	TOK 622 AC	2015	7	218	999.9	7.06	14.00	6.94
Show	HD 176441	104328	18 59 43 +16 15 09	SOZ 25 AD	2015	6	208	18.4	6.10	12.10	6.00		<===

Quadruple system
4 estimated visually detectable stars in this system

Name	HD 176441		Constellation	Aquila		SAO	104328		HIP	93252
Tycho2	1585-00581-1		Gaia DR2	4513821963108970368		HD	176441		BD	BD+16 3691
Distance	46.77		Distance ly	152.56