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18570+3254
BU 648 AI

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

18570+3254 BU 648 AI

18^h 57^m 01.61^s +32° 54' 04.6" P.A. 89.00 sep 3.3 mag 5.34, Sp G0V dist. 14.87 pc (48.51 l.y.)

Coord 2000	18570+3254		Discov num	BU 648		Comp	AI		Coord arcsec 2000	18 57 01.61 +32 54 04.6
Date first	2015		Date last	2015		Obs	2
Pa first	89		Pa last	89		P.A. Now (θ)	89°
Sep first	3.2		Sep last	3.256		Sep. Now (ρ)	3.256"
Mag pri	5.34		Mag sec			delta mag (ΔM)			Spectral class	G0V (yellow)
Pri motion ra	+203		Sec motion ra
Pri motion dec	-144		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

18570+3254 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		67612	18 57 02 +32 54 05	BU 648 AB	2023	435	224	1.1	5.34	7.96	2.62	Y
Show	HD 176051	67612	18 57 02 +32 54 05	BU 648 AB,C	2015	10	293	76.3	5.22	11.00	5.78
Show		67612	18 57 02 +32 54 05	BU 648 AB,D	2014	6	201	83.9	5.22	12.20	6.98
Show		67612	18 57 02 +32 54 05	BU 648 AE	2015	8	318	124.8	5.34	12.50	7.16
Show		67612	18 57 02 +32 54 05	BU 648 AF	2015	9	78	85.9	5.34	12.60	7.26
Show		67612	18 57 02 +32 54 05	BU 648 AG	2015	2	117	2.1	5.34
Show		67612	18 57 02 +32 54 05	BU 648 AH	2015	2	104	2.2	5.34
Show		67612	18 57 02 +32 54 05	BU 648 AI	2015	2	89	3.3	5.34				<===
Show		67612	18 57 02 +32 54 05	BU 648 AJ	2015	2	105	4.3	5.34

Decuple system
11 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Lyra		SAO	67612		HIP	93017		Tycho2	2643-03345-1
HD	176051		HR	7162		ADS	11871		BD	BD+32 3267
Distance	14.87		Distance ly	48.51