17254-5233 LPO 62 (HD 157318)

Coord 2000	17254-5233		Discov num	LPO  62		Comp			Coord arcsec 2000	17 25 25.76 -52 33 23.1
Date first	1892		Date last	2016		Obs	10
Pa first	93		Pa last	90.3		P.A. Now (θ)	90.3°
Sep first	10.6		Sep last	10.091		Sep. Now (ρ)	10.091"
Mag pri	9.96		Mag sec	10.60		delta mag (ΔM)	0.64		Spectral class	A3V+A5V (white/white)
Pri motion ra	-002		Sec motion ra	+006
Pri motion dec	-016		Sec motion dec	-015
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.499 This double is physical.

Name	HD 157318		Constellation	Ara		SAO	244730		Tycho2	8728-01005-1
Gaia DR2	5924726897446029312		HD	157318

discov_num	notes	refcode
LPO 62	SWR 221. CPM pair	Skf2004

refcode	metd	author	reference
Skf2004	-	Skiff, B.A.	...................
Skf2004		private communication, 2004 (may not be properly precessed)
Skf2004		(coordinates and identifications for Stock & Wroblewski pairs)

idgroup	discov	author
1	LPO	La Plata Obs.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17254-5233	LPO 62		1999	6	90	10.2	9.96	10.60	A3V A5V	N D	172525.76-523323.1
17254-5233	LPO 62		2010	8	90	9.8	9.96	10.60	A3V+A5V	NV	172525.76-523323.1
17254-5233	LPO 62		2015	9	90	10.1	9.96	10.60	A3V+A5V	NV	172525.76-523323.1
17254-5233	LPO 62		2016	10	90	10.1	9.96	10.60	A3V+A5V	NV	172525.76-523323.1

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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