18170-1858 SNA 85 AC

Coord 2000	18170-1858		Discov num	SNA  85		Comp	AC		Coord arcsec 2000	18 16 58.56 -18 58 05.1
Date first	2012		Date last	2012		Obs	1
Pa first	88		Pa last	87.9		P.A. Now (θ)	87.9°
Sep first	5.1		Sep last	5.11		Sep. Now (ρ)	5.11"
Mag pri	6.67		Mag sec	12.57		delta mag (ΔM)	5.9		Spectral class	O7II-III (blue)
Pri motion ra	+000		Sec motion ra
Pri motion dec	-002		Sec motion dec
Notes	N K (See Notes, 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 Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		161255	18 16 59 -18 58 05	SNA 85 Aa,Ab	2012	2	265	0.0	6.80	9.30	2.50
Show		161255	18 16 59 -18 58 05	MZA 23 AB	2009	4	227	17.5	7.40	13.50	6.10
Show		161255	18 16 59 -18 58 05	SNA 85 AC	2012	1	88	5.1	6.67	12.57	5.90		<===
Show		161255	18 16 59 -18 58 05	SNA 85 AD	2012	1	247	5.8	6.67	13.63	6.96
Show		161255	18 16 59 -18 58 05	SNA 85 AE	2012	1	58	7.3	6.67	14.01	7.34

Sextuple system
5 estimated visually detectable stars in this system

Constellation	Sagittarius		SAO	161255		Tycho2	6273-00422-1		Gaia DR2	4094790350826867584
HD	167659