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06531+3128
SIN 23 AC

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

06531+3128 SIN 23 AC

06^h 53^m 04.66^s +31° 27' 44.5" P.A. 151.00 sep 56.4 mag 9.51,12.26 Sp G0 dist. 198.02 pc (645.94 l.y.)

Coord 2000	06531+3128		Discov num	SIN 23		Comp	AC		Coord arcsec 2000	06 53 04.66 +31 27 44.5
Date first	1899		Date last	2015		Obs	10
Pa first	151		Pa last	150.7		P.A. Now (θ)	150.7°
Sep first	55.4		Sep last	56.39		Sep. Now (ρ)	56.39"
Mag pri	9.51		Mag sec	12.26		delta mag (ΔM)	2.75		Spectral class	G0 (yellow)
Pri motion ra	-016		Sec motion ra	-013
Pri motion dec	-004		Sec motion dec	-009
Notes

rPM=0.354

Nature of this double is uncertain.

06531+3128 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 265345	59578	06 53 05 +31 27 44	SEI 466 AB	2015	14	154	29.7	9.51	11.39	1.88
Show		59578	06 53 05 +31 27 44	SIN 23 AC	2015	10	151	56.4	9.51	12.26	2.75		<===
Show		59578	06 53 05 +31 27 44	SIN 23 AD	2015	7	62	57.5	9.51	15.05	5.54
Show		59578	06 53 05 +31 27 44	SIN 23 AE	2015	7	341	95.5	9.51	15.36	5.85
Show		59578	06 53 05 +31 27 44	SIN 23 AF	2015	7	312	113.0	9.51	13.85	4.34
Show		59578	06 53 05 +31 27 44	SIN 23 AG	2015	6	103	153.4	9.51	14.80	5.29
Show		59578	06 53 05 +31 27 44	SIN 23 AH	2015	7	85	202.1	9.51	14.06	4.55

Octuple system
8 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Gemini		SAO	59578		HIP	33047		Tycho2	2436-00357-1
Gaia DR2	889262979953486848		HD	265345		BD	BD+31 1428		Distance	198.02
Distance ly	645.94