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Doubles in session

Current system

23177+4901
BU 717 AC
8 And

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

23177+4901 BU 717 AC (8 And)

23^h 17^m 44.64^s +49° 00' 55.0" P.A. 131.00 sep 217.3 mag 5.01,10.83 Sp M2III dist. 172.71 pc (563.38 l.y.)

Coord 2000	23177+4901		Discov num	BU 717		Comp	AC		Coord arcsec 2000	23 17 44.64 +49 00 55.0
Date first	1880		Date last	2008		Obs	9
Pa first	131		Pa last	131.4		P.A. Now (θ)	131.4°
Sep first	219.4		Sep last	217.25		Sep. Now (ρ)	217.25"
Mag pri	5.01		Mag sec	10.83		delta mag (ΔM)	5.82		Spectral class	M2III (red)
Pri motion ra	+034		Sec motion ra	+004
Pri motion dec	+006		Sec motion dec	-005
Notes	N (See Notes)

rPM=0.925

This double is not physical.

23177+4901 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		52871	23 17 45 +49 00 55	BU 717 AB	2016	12	163	7.8	5.01	13.00	7.99
Show	8 And	52871	23 17 45 +49 00 55	BU 717 AC	2008	9	131	217.3	5.01	10.83	5.82		<===
Show		52871	23 17 45 +49 00 55	FOX 273 AD	2007	4	233	58.6	5.01	12.46	7.45
Show		52871	23 17 45 +49 00 55	WAL 147 AE	2015	2	108	94.1	5.01	12.34	7.33
Show		52871	23 17 45 +49 00 55	KUI 116 AF	2015	2	181	14.7	5.01	16.00	10.99
Show			23 17 45 +49 00 48	KUI 116 BF	2015	2	200	7.6	13.00	16.00	3.00

Sextuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	8 And		Var name	NSV14484 And		Constellation	Andromeda		SAO	52871
HIP	115022		Tycho2	3644-02208-1		Gaia DR2	1942705624581332224		HD	219734
HR	8860		GC	32432		ADS	16656		BD	BD+48 3991
Flamsteed	8 Andromedae		Flamsteed name	8 And		Distance	172.71		Distance ly	563.38