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Current system

23100+4758
STF 2985 DE
HD 218739

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

23100+4758 STF 2985 DE (HD 218739)

23^h 09^m 58.87^s +47° 57' 33.8" P.A. 257.00 sep 15.6 mag 7.21,8.02 Sp G2IV-V dist. 24.98 pc (81.48 l.y.)

Coord 2000	23100+4758		Discov num	STF2985		Comp	DE		Coord arcsec 2000	23 09 58.87 +47 57 33.8
Date first	1823		Date last	2020		Obs	81
Pa first	253		Pa last	257.2		P.A. Now (θ)	257.2°
Sep first	14.7		Sep last	15.6		Sep. Now (ρ)	15.6"
Mag pri	7.21		Mag sec	8.02		delta mag (ΔM)	0.81		Spectral class	G2IV-V (yellow)
Pri motion ra	+154		Sec motion ra	+147
Pri motion dec	-001		Sec motion dec	+012
Notes	N T W (See Notes, Parallax indicates physical, )

rPM=0.096 (< 0.3, Physical double)

This double is physical.

23100+4758 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 218739	52754	23 09 59 +47 57 34	STF 2985 DE	2020	81	257	15.6	7.21	8.02	0.81		<===
Show		52754	23 09 59 +47 57 34	MET 95 DF	2003	1	222	7.1	5.70	13.10	7.40
Show		52754	23 09 59 +47 57 34	MET 95 DG	2003	1	288	9.5	5.70	18.80	13.10
Show		52754	23 09 59 +47 57 34	MET 95 DH	2003	1	239	12.1	5.70	18.50	12.80
Show			23 09 57 +47 57 30	MET 95 EF	2003	2	98	10.6	5.70	13.10	7.40
Show			23 09 57 +47 57 30	MET 95 EG	2003	1	42	9.2	5.70	18.80	13.10
Show			23 09 57 +47 57 30	MET 95 EH	2003	1	121	5.3	5.70	18.50	12.80
Show			23 09 57 +47 57 30	MET 95 EI	2004	1	224	2.1	5.70	16.60	10.90
Show			23 09 57 +47 57 30	MET 95 EJ	2003	1	182	4.1	5.70	15.80	10.10
Show			23 09 57 +47 57 30	MET 95 EK	2003	1	33	5.5	5.70	19.40	13.70
Show			23 09 57 +47 57 30	MET 95 EL	2003	1	38	6.0	5.70	18.30	12.60

Ninefold system
9 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 218739		Constellation	Andromeda		SAO	52754		HIP	114385
Tycho2	3627-01821-1		HD	218739		GC	32277		BD	BD+47 4059
Distance	24.98		Distance ly	81.48