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18106-1645
ABH 94 AF

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

18106-1645 ABH 94 AF

18^h 10^m 33.56^s -16° 44' 57.4" P.A. 49.00 sep 99.2 mag 8.27,13.07 Sp B1III

Coord 2000	18106-1645		Discov num	ABH 94		Comp	AF		Coord arcsec 2000	18 10 33.56 -16 44 57.4
Date first	1987		Date last	2015		Obs	5
Pa first	49		Pa last	48.7		P.A. Now (θ)	48.7°
Sep first	99.4		Sep last	99.152		Sep. Now (ρ)	99.152"
Mag pri	8.27		Mag sec	13.07		delta mag (ΔM)	4.8		Spectral class	B1III (blue-white)
Pri motion ra	+003		Sec motion ra	-009
Pri motion dec	+000		Sec motion dec	+015
Notes	N (See Notes)

rPM=1.098

This double is not physical.

18106-1645 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 166286	161139	18 10 34 -16 44 57	S 700 AB	2018	21	291	18.8	8.27	9.73	1.46
Show		161139	18 10 34 -16 44 57	S 700 AC	2018	27	353	28.6	8.27	8.59	0.32
Show		161139	18 10 34 -16 44 57	ABH 94 AD	2015	5	348	47.7	8.27	14.20	5.93
Show		161139	18 10 34 -16 44 57	ABH 94 AE	2015	5	65	58.0	8.27	13.48	5.21
Show		161139	18 10 34 -16 44 57	ABH 94 AF	2015	5	49	99.2	8.27	13.07	4.80		<===
Show		161139	18 10 34 -16 44 57	S 700 AG	2015	7	297	35.6	8.27	11.30	3.03

Septuple system
7 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Sagittarius		SAO	161139		Tycho2	6264-01001-1		Gaia DR2	4145581465816350464
HD	166286