18313-1855 TNN 10 AD

Coord 2000	18313-1855		Discov num	TNN  10		Comp	AD		Coord arcsec 2000	18 31 18.96 -18 54 31.7
Date first	2004		Date last	2004		Obs	1
Pa first	213		Pa last	212.6		P.A. Now (θ)	212.6°
Sep first	5.1		Sep last	5.11		Sep. Now (ρ)	5.11"
Mag pri	4.70		Mag sec	15.75		delta mag (ΔM)	11.05		Spectral class	K2V (yellow-orange)
Pri motion ra	-140		Sec motion ra
Pri motion dec	-195		Sec motion dec
Notes	U K (Proper motion indicates non-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 not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			18 31 19 -18 54 32	TNN 10 AB	2004	1	170	2.8	4.70	14.06	9.36
Show			18 31 19 -18 54 32	TNN 10 AC	2004	1	267	3.5	4.70	15.72	11.02
Show			18 31 19 -18 54 32	TNN 10 AD	2004	1	213	5.1	4.70	15.75	11.05		<===
Show			18 31 19 -18 54 32	TNN 10 AE	2004	1	71	5.3	4.70	15.91	11.21
Show			18 31 19 -18 54 32	TNN 10 AF	2004	1	119	5.4	4.70	13.62	8.92

Sextuple system
6 estimated visually detectable stars in this system

Constellation

Sagittarius

SAO

161557

Gaia DR2

4093301474693288960