17098+0804 OSO 77 AG

Coord 2000	17098+0804		Discov num	OSO  77		Comp	AG		Coord arcsec 2000	17 09 47.38 +08 04 25.5
Date first	1995		Date last	1995		Obs	1
Pa first	198		Pa last	197.8		P.A. Now (θ)	197.8°
Sep first	15.7		Sep last	15.66		Sep. Now (ρ)	15.66"
Mag pri	12.61		Mag sec	19.50		delta mag (ΔM)	6.89		Spectral class
Pri motion ra	-172		Sec motion ra
Pri motion dec	-381		Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 09 47 +08 04 26	OSO 77 AB	2001	5	275	6.4	12.61	15.90	3.29
Show			17 09 47 +08 04 26	OSO 77 AC	1995	1	56	9.1	12.61	20.50	7.89
Show			17 09 47 +08 04 26	OSO 77 AD	1996	2	353	10.3	12.61	18.90	6.29
Show			17 09 47 +08 04 26	OSO 77 AE	2000	4	101	10.8	12.61	17.40	4.79
Show			17 09 47 +08 04 26	OSO 77 AF	1996	3	268	15.8	12.61	18.70	6.09
Show			17 09 47 +08 04 26	OSO 77 AG	1995	1	198	15.7	12.61	19.50	6.89		<===
Show			17 09 47 +08 04 26	OSO 77 AH	1995	1	20	17.1	12.61	19.30	6.69

Octuple system
8 estimated visually detectable stars in this system

Constellation

Ophiuchus

discov_num	notes	refcode
OSO 77	G139-016. None of the components share a common proper motion, based
	on color and comparison with POSS2 red plates	Oso2004

refcode	metd	author	reference
Oso2004	C j	Zapatero Osorio, M.R. & Martin, E.L.	2004A&A...419..167Z
Oso2004	+Pa	A&A 419, 167, 2004

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17098+0804	OSO 77	AG	1995	1	198	15.7	12.61	19.50		N D	170947.38+080425.5

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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