20256-5644 HJ 5193AB (Peacock)

Coord 2000	20256-5644		Discov num	HJ 5193		Comp	AB		Coord arcsec 2000	20 25 38.85 -56 44 06.3
Date first	1879		Date last	2008		Obs	7
Pa first	85		Pa last	80		P.A. Now (θ)	80°
Sep first	245.4		Sep last	249.4		Sep. Now (ρ)	249.4"
Mag pri	1.90		Mag sec	9.14		delta mag (ΔM)	7.24		Spectral class	B2IV (blue-white)
Pri motion ra	+007		Sec motion ra	+007
Pri motion dec	-086		Sec motion dec	-021
Notes	N (See Notes)

Visually invisible, K-band or other infrared star rPM=0.753 Nature of this double is uncertain.

Show	name	SAO	coord_2000	discov#	comp	first	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Peacock	246574	20256-5644	HJ 5193	AB	1879	2008	7	80	249.4	1.90	9.14	7.24		<===
Show		246574	20256-5644	HJ 5193	AC	1879	2010	3	77	244.4	1.90	9.70	7.80
Show		246574	20256-5644	HJ 5193	AD	1904	2010	3	254	62.3	1.90	9.70	7.80
Show		246577	20256-5644	HJ 5193	BC	1835	2010	10	332	16.7	9.14	9.70	0.56

Quadruple system
4 visible stars in this system

Precise pa	80.2		Precise sep	249.4		Common name	Peacock		Meaning	peacock
Constellation	Pavo		SAO	246574		HIP	100751		Tycho2	8785-01898-1
Gaia DR2	87465816064		HD	193924		HR	7790		GC	28374
CP	CP-57 9674		Bayer	Alpha Pavonis		Bayer name	Alp Pav		Distance	54.82
Distance ly	178.82

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20256-5644	HJ 5193	AB	1999	5	80	249.0	1.90	9.14	B2IV	N D	202538.85-564406.3
20256-5644	HJ 5193	AB	2008	6	80	249.4	1.90	9.14	B2IV	N D	202538.85-564406.3

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