08198-7131 BSO 17 Aa,Ab

Coord 2000	08198-7131		Discov num	BSO  17		Comp	Aa,Ab		Coord arcsec 2000	08 19 49.00 -71 30 54.0
Date first	2018		Date last	2020		Obs	2
Pa first	7		Pa last	7.1		P.A. Now (θ)	7.1°
Sep first	1.3		Sep last	1.339		Sep. Now (ρ)	1.339"
Mag pri	5.31		Mag sec	9.80		delta mag (ΔM)	4.49		Spectral class	B9III-IV (blue-white)
Pri motion ra	-017		Sec motion ra
Pri motion dec	+036		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		256497	08 19 49 -71 30 54	BSO 17 Aa,Ab	2020	2	7	1.3	5.31	9.80	4.49		<===
Show	Kap1 Vol	256497	08 19 49 -71 30 54	BSO 17 AB	2020	27	58	64.0	5.31	5.59	0.28
Show		256497	08 19 49 -71 30 54	BSO 17 AC	2020	20	48	98.4	5.31	7.67	2.36
Show		256499	08 20 01 -71 30 19	BSO 17 BC	2020	21	30	37.2	5.59	7.67	2.08

Quadruple system
3 estimated visually detectable stars in this system

Constellation	Volans		SAO	256497		HIP	40817		Tycho2	9201-02149-1
HD	71046		HR	3301		GC	11421		CP	CP-71 677
Bayer	Kappa 1 Volantis		Bayer name	Kap1 Vol		Distance	133.33		Distance ly	434.92
Bayer greek	κ1 Vol

discov_num	notes	refcode
BSO 17	A: kap 1 Vol. A is a spectroscopic binary.
	B: kap 2 Vol

refcode	metd	author	reference
BsO1847A	Ma -	Brisbane Obs.	.
BsO1847A		cited by Herschel (Cape Results, London, 1847)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
08198-7131	BSO 17	Aa,Ab	2018	1	7	1.3	5.31	9.80	B9III-IV	N	081949.00-713054.0
08198-7131	BSO 17	Aa,Ab	2020	2	7	1.3	5.31	9.80	B9III-IV	N	081949.00-713054.0

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS