18031-5139 CVN  57AF

Coord 2000	18031-5139		Discov num	CVN  57		Comp	AF		Coord arcsec 2000	18 03 03.41 -51 38 56.4
Date first	2004		Date last	2004		Obs	1
Pa first	46		Pa last	46		P.A. Now (θ)	46°
Sep first	11.2		Sep last	11.2		Sep. Now (ρ)	11.2"
Mag pri	5.91		Mag sec	20.50		delta mag (ΔM)	14.59		Spectral class	F6V (yellow-white)
Pri motion ra	+004		Sec motion ra
Pri motion dec	-086		Sec motion dec
Notes	K (K-band or other infrared magnitudes)

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

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		245201	18 03 03 -51 38 56	SKF 1420 AB	2016	7	89	6.5	7.00	12.50	5.50
Show		245201	18 03 03 -51 38 56	CVN 57 AC	2004	1	199	7.4	5.91	19.20	13.29
Show		245201	18 03 03 -51 38 56	CVN 57 AD	2004	1	178	9.7	5.91	19.80	13.89
Show		245201	18 03 03 -51 38 56	CVN 57 AE	2004	1	322	10.1	5.91	20.40	14.49
Show		245201	18 03 03 -51 38 56	CVN 57 AF	2004	1	46	11.2	5.91	20.50	14.59		<===
Show		245201	18 03 03 -51 38 56	CVN 57 AG	2004	1	18	11.2	5.91	19.20	13.29
Show		245201	18 03 03 -51 38 56	CVN 57 AH	2004	1	37	13.0	5.91	20.90	14.99
Show		245201	18 03 03 -51 38 56	CVN 57 AI	2004	1	139	14.6	5.91	17.90	11.99
Show		245201	18 03 03 -51 38 56	CVN 57 AJ	2004	1	139	14.8	5.91	17.50	11.59

Decuple system
10 visible stars in this system

Precise pa	46.3		Precise sep	11.155		Constellation	Ara		SAO	245201
HIP	88399		Tycho2	8369-01619-1		Gaia DR2	6702775135228913280		HD	164249
CD	CD-5111312		CP	CP-5110709		Distance	48.15		Distance ly	157.07

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18031-5139	CVN 57	AF	2004	1	46	11.2	5.91	20.50	F6V+M2Ve	K	180303.41-513856.4

If you need more information about this double, apply for a data request form to the WDS.