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Doubles in session

Current system

23279+4206
ABH 173 AD

Selections

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Binocular doubles
Binary Systems
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Quadruple Systems
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Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

23279+4206 ABH 173 AD

23^h 27^m 55.82^s +42° 05' 39.2" P.A. 281.00 sep 72.9 mag 11.51,14.54 Sp G1V

Coord 2000	23279+4206		Discov num	ABH 173		Comp	AD		Coord arcsec 2000	23 27 55.82 +42 05 39.2
Date first	1987		Date last	2015		Obs	8
Pa first	282		Pa last	281.2		P.A. Now (θ)	281.2°
Sep first	72.6		Sep last	72.872		Sep. Now (ρ)	72.872"
Mag pri	11.51		Mag sec	14.54		delta mag (ΔM)	3.03		Spectral class	G1V (yellow)
Pri motion ra	+013		Sec motion ra	-011
Pri motion dec	-004		Sec motion dec	-001
Notes	U (Proper motion indicates non-physical)

rPM=1.778

This double is not physical.

23279+4206 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			23 27 56 +42 05 39	CHE 479 AB	2015	10	158	6.7	11.51	12.00	0.49
Show			23 27 56 +42 05 39	CHE 479 AC	2015	8	297	25.3	11.51	13.61	2.10
Show			23 27 56 +42 05 39	ABH 173 AD	2015	8	281	72.9	11.51	14.54	3.03		<===
Show			23 27 56 +42 05 39	ABH 173 AE	2015	8	305	103.1	11.51	13.31	1.80
Show			23 27 56 +42 05 39	ABH 173 AF	2015	8	224	89.5	11.51	14.33	2.82
Show			23 27 56 +42 05 33	CHE 479 BC	2015	9	305	30.7	11.75	13.61	1.86

Sextuple system
6 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Andromeda

Tycho2

3238-00728-1

Gaia DR2

1924735343974827776