19240-4557 I 116 AB (HD 181791)

19^h 24^m 01.10^s -45° 56' 35.7" P.A. 24.00 sep 2.7 mag 8.57,9.43 Sp G8III

Coord 2000	19240-4557	Discov num	I 116	Comp	AB	Coord arcsec 2000	19 24 01.10 -45 56 35.7
Date first	1900	Date last	2016	Obs	12
Pa first	30	Pa last	24	P.A. Now (θ)	24°
Sep first	2.3	Sep last	2.67	Sep. Now (ρ)	2.67"
Mag pri	8.57	Mag sec	9.43	delta mag (ΔM)	0.86	Spectral class	G8III (yellow)
Pri motion ra	+025	Sec motion ra	+025
Pri motion dec	-016	Sec motion dec	-013
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.101 (< 0.3, Physical double)

This double is physical.

19240-4557 SYSTEM COMPONENTS

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 181791		Constellation	Telescopium		SAO	229658		Tycho2	8376-01301-1
Gaia DR2	6663537035561531520		HD	181791		DM	CP-46 9700