17578-3853 SIN 104 AC

17^h 57^m 51.05^s -38° 52' 16.3" P.A. 240.00 sep 17.8 mag 9.91,12.30 Sp A0V

Coord 2000	17578-3853		Discov num	SIN 104		Comp	AC		Coord arcsec 2000	17 57 51.05 -38 52 16.3
Date first	1990		Date last	2015		Obs	4
Pa first	248		Pa last	240.4		P.A. Now (θ)	240.4°
Sep first	19.8		Sep last	17.808		Sep. Now (ρ)	17.808"
Mag pri	9.91		Mag sec	12.30		delta mag (ΔM)	2.39		Spectral class	A0V (white)
Pri motion ra	-003		Sec motion ra	+001
Pri motion dec	-008		Sec motion dec	-005
Notes

rPM=0.585

Nature of this double is uncertain.

17578-3853 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 163412		17 57 51 -38 52 16	I 1012 AB	2015	12	116	3.1	9.91	10.00	0.09
Show			17 57 51 -38 52 16	SIN 104 AC	2015	4	240	17.8	9.91	12.30	2.39		<===
Show			17 57 51 -38 52 16	SIN 104 AD	2015	4	301	33.9	9.91	13.50	3.59
Show			17 57 51 -38 52 16	SIN 104 AE	2015	4	76	37.6	9.91	13.20	3.29
Show			17 57 51 -38 52 16	SIN 104 AF	2015	4	73	47.4	9.91	13.00	3.09

Sextuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Scorpius

Tycho2

7886-01851-1

Gaia DR2

4036521212378251136

HD

163412