17594-2228 SNA 76 AB (HD 163892)

Coord 2000	17594-2228		Discov num	SNA  76		Comp	AB		Coord arcsec 2000	17 59 26.31 -22 28 00.8
Date first	2012		Date last	2012		Obs	1
Pa first	92		Pa last	91.8		P.A. Now (θ)	91.8°
Sep first	2.0		Sep last	2.01		Sep. Now (ρ)	2.01"
Mag pri	7.09		Mag sec	12.40		delta mag (ΔM)	5.31		Spectral class	O9.5IV (blue)
Pri motion ra	+002		Sec motion ra
Pri motion dec	-002		Sec motion dec
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 This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 163892	186053	17 59 26 -22 28 01	SNA 76 AB	2012	1	92	2.0	7.09	12.40	5.31		<===
Show		186053	17 59 26 -22 28 01	SNA 76 AC	2012	1	265	2.5	7.09	12.96	5.87
Show		186053	17 59 26 -22 28 01	SNA 76 AD	2012	1	84	6.5	7.09	13.40	6.31
Show		186053	17 59 26 -22 28 01	SNA 76 AE	2012	2	63	6.5	7.09	12.14	5.05

Quintuple system
5 estimated visually detectable stars in this system

Name	HD 163892		Constellation	Sagittarius		SAO	186053		HIP	88085
Tycho2	6262-00773-1		Gaia DR2	4069547797210386816		HD	163892		BD	BD-22 4478
CD	CD-2212392		Distance	2000		Distance ly	6524