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20210-1447
STFA 52 BC

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

20210-1447 STFA 52 BC

20^h 20^m 46.55^s -14° 47' 05.5" P.A. 111.00 sep 396.5 mag 6.08,8.83 Sp A0III dist. 104.06 pc (339.44 l.y.)

Coord 2000	20210-1447		Discov num	STFA 52		Comp	BC		Coord arcsec 2000	20 20 46.55 -14 47 05.5
Date first	1895		Date last	2015		Obs	14
Pa first	112		Pa last	110.9		P.A. Now (θ)	110.9°
Sep first	397.4		Sep last	396.516		Sep. Now (ρ)	396.516"
Mag pri	6.08		Mag sec	8.83		delta mag (ΔM)	2.75		Spectral class	A0III (white)
Pri motion ra	+043		Sec motion ra	+039
Pri motion dec	+000		Sec motion dec	+006
Notes	N (See Notes)

rPM=0.168 (< 0.3, Physical double)

This double is physical.

20210-1447 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		163481	20 21 01 -14 46 53	BLA 7 Aa,Ab	2021	15	35	0.1	3.10	4.90	1.80	Y
Show	Dabih	163481	20 21 01 -14 46 53	STFA 52 AB	2016	42	266	205.2	3.15	6.08	2.93
Show		163481	20 21 01 -14 46 53	STFA 52 AC	2012	11	133	226.1	3.15	8.83	5.68
Show		163481	20 21 01 -14 46 53	HJ 2948 AD	2000	3	292	115.9	3.15	12.96	9.81
Show		163471	20 20 47 -14 47 06	BAR 12 Ba,Bb	2021	30	52	0.4	6.16	9.14	2.98	Y
Show		163471	20 20 47 -14 47 06	STFA 52 BC	2015	14	111	396.5	6.08	8.83	2.75		<===
Show			20 20 53 -14 46 09	HJ 2948 DE	2000	8	321	3.9	13.70	14.40	0.70

Septuple system
5 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Capricornus		SAO	163471		HIP	100325		Tycho2	5753-02282-1
Gaia DR2	6875990891389558400		HD	193452		HR	7775		GC	28286
ADS	13717		DM	BD-15 5631		BD	BD-15 5626		Bayer	Beta 2 Capricorni
Bayer name	Bet2 Cap		Distance	104.06		Distance ly	339.44		Bayer greek	β² Cap