16579+4722 A 1874 AD

16^h 57^m 53.18^s +47° 22' 00.0" P.A. 246.00 sep 25.9 mag 7.93,15.00 Sp K0V dist. 18.3 pc (59.69 l.y.)

Coord 2000	16579+4722		Discov num	A 1874		Comp	AD		Coord arcsec 2000	16 57 53.18 +47 22 00.0
Date first	1908		Date last	1998		Obs	2
Pa first	270		Pa last	246		P.A. Now (θ)	246°
Sep first	40.0		Sep last	25.9		Sep. Now (ρ)	25.9"
Mag pri	7.93		Mag sec	15.00		delta mag (ΔM)	7.07		Spectral class	K0V (yellow-orange)
Pri motion ra	-147		Sec motion ra	-014
Pri motion dec	+272		Sec motion dec	-020
Notes	N W (See Notes, )

rPM=1.038

This double is not physical.

16579+4722 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	V1090 Her	46409	16 57 53 +47 22 00	A 1874 AB	2021	47	64	5.0	7.93	10.85	2.92	Y
Show		46409	16 57 53 +47 22 00	STFA 32 AC	2021	36	262	112.4	7.93	8.05	0.12
Show		46409	16 57 53 +47 22 00	A 1874 AD	1998	2	246	25.9	7.93	15.00	7.07		<===
Show			16 57 54 +47 22 02	STFA 32 BC	2015	9	261	117.2	10.85	8.05	2.80

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Var name	V1090 Her		Constellation	Hercules		SAO	46409		HIP	83020
Tycho2	3500-01780-1		Gaia DR2	1408029509584967168		HD	153557		GL	Gl 649.1A
BD	BD+47 2415		Distance	18.3		Distance ly	59.69