20457-3736 HJ 5216 (HD 197557)

20^h 45^m 41.07^s -37° 36' 33.6" P.A. 22.00 sep 15.6 mag 10.10,10.55 Sp F7IV+F8IV

Coord 2000	20457-3736	Discov num	HJ 5216	Comp		Coord arcsec 2000	20 45 41.07 -37 36 33.6
Date first	1836	Date last	2016	Obs	17
Pa first	18	Pa last	21.6	P.A. Now (θ)	21.6°
Sep first	12.0	Sep last	15.622	Sep. Now (ρ)	15.622"
Mag pri	10.10	Mag sec	10.55	delta mag (ΔM)	0.45	Spectral class	F7IV+F8IV (yellow-white/yellow-white)
Pri motion ra	-010	Sec motion ra	-012
Pri motion dec	+010	Sec motion dec	+010
Notes	T (Parallax indicates physical)

rPM=0.128 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 197557		Constellation	Microscopium		Tycho2	7963-01588-1		Gaia DR2	6778218847115665792
HD	197557		DM	CP-38 8098