20176-1230 BU 295 AB

20^h 17^m 38.86^s -12° 30' 29.6" P.A. 212.00 sep 53.2 mag 4.24,14.10 Sp G3Ib dist. 174.52 pc (569.28 l.y.)

Coord 2000	20176-1230		Discov num	BU 295		Comp	AB		Coord arcsec 2000	20 17 38.86 -12 30 29.6
Date first	1874		Date last	2008		Obs	7
Pa first	180		Pa last	211.9		P.A. Now (θ)	211.9°
Sep first	15.0		Sep last	53.19		Sep. Now (ρ)	53.19"
Mag pri	4.24		Mag sec	14.10		delta mag (ΔM)	9.86		Spectral class	G3Ib (yellow)
Pri motion ra	+022		Sec motion ra
Pri motion dec	+002		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

20176-1230 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		163422	20 17 39 -12 30 30	WZ 15 Aa,Ab	2002	3	353	0.8	4.44	8.60	4.16
Show		163422	20 17 39 -12 30 30	BU 295 AB	2008	7	212	53.2	4.24	14.10	9.86		<===
Show	Prima Giedi	163422	20 17 39 -12 30 30	HJ 607 AC	2020	34	228	47.4	4.24	9.60	5.36
Show			20 17 37 -12 31 04	WZ 15 CD	2015	4	108	31.7	9.60	14.20	4.60

Quintuple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Prima Giedi		Constellation	Capricornus		SAO	163422		HIP	100027
Tycho2	5748-02598-1		Gaia DR2	6880097807840983040		HD	192876		HR	7747
GC	28189		ADS	13632		BD	BD-12 5683		Bayer	Alpha 1 Capricorni
Bayer name	Alp1 Cap		Flamsteed	5 Capricorni		Flamsteed name	5 Cap		FK5	1527
Distance	174.52		Distance ly	569.28		Bayer greek	α¹ Cap

Other names

Giedi Prima, Al giedi prima, Algiedi Prima, Giedi Prime