07311-5734 HJ 3980 BC

07^h 31^m 05.61^s -57° 34' 46.5" P.A. 257.00 sep 6.6 mag 14.20,14.60

Coord 2000	07311-5734		Discov num	HJ 3980		Comp	BC		Coord arcsec 2000	07 31 05.61 -57 34 46.5
Date first	1920		Date last	2015		Obs	5
Pa first	264		Pa last	256.8		P.A. Now (θ)	256.8°
Sep first	7.1		Sep last	6.575		Sep. Now (ρ)	6.575"
Mag pri	14.20		Mag sec	14.60		delta mag (ΔM)	0.4		Spectral class
Pri motion ra	+025		Sec motion ra	-046
Pri motion dec	+006		Sec motion dec	-017
Notes

rPM=1.522

This double is not physical.

07311-5734 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			07 31 04 -57 34 29	HJ 3980 AB	2015	5	138	23.6	9.37	14.20	4.83
Show			07 31 04 -57 34 29	HJ 3980 AC	2015	4	154	21.3	9.37	14.60	5.23
Show			07 31 06 -57 34 46	HJ 3980 BC	2015	5	257	6.6	14.20	14.60	0.40		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Carina

Gaia DR2

5486164453935717632