17331-3035 CHM 6 BC

Coord 2000	17331-3035		Discov num	CHM   6		Comp	BC		Coord arcsec 2000	17 33 05.77 -30 35 09.4
Date first	2019		Date last	2020		Obs	2
Pa first	305		Pa last	306.4		P.A. Now (θ)	306.4°
Sep first	3.0		Sep last	3.092		Sep. Now (ρ)	3.092"
Mag pri	12.50		Mag sec	18.20		delta mag (ΔM)	5.7		Spectral class	M3.5 (red)
Pri motion ra	-149		Sec motion ra
Pri motion dec	-140		Sec motion dec
Notes	N R (See Notes, Red magnitudes)

Nature of this double is uncertain.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 33 06 -30 35 08	CHM 6 AB	2021	14	255	4.8	13.80	13.80	0.00
Show			17 33 06 -30 35 09	CHM 6 BC	2020	2	306	3.1	12.50	18.20	5.70		<===

Triple system
3 estimated visually detectable stars in this system

Constellation

Scorpius

discov_num	notes	refcode
CHM 6	NLTT 44988 + 44989.

refcode	metd	author	reference
Chm2004	E -	Chaname, J. & Gould, A.	2004ApJ...601..289C
Chm2004		ApJ 601, 289, 2004
Chm2004		(Photometry, coordinates, and astrometry from rNLTT. Astrometry from early
Chm2004		versions of 2MASS and UCAC, with date given only as "circa 2000". Measures
Chm2004		identical to discovery observations - predominantly close pairs - were assumed
Chm2004		not new observations, so not included in WDS. Similar concerns when primary and
Chm2004		secondary magnitudes or proper motions were the same.)

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17331-3035	CHM 6	BC	2020	2	306	3.1	12.50	18.20	M3.5	N R	173305.77-303509.4

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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