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Doubles in session

Current system

17247-3412
DAW 216 BC

Selections

Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

17247-3412 DAW 216 BC

17^h 24^m 44.73^s -34° 12' 02.7" P.A. 321.00 sep 4.9 mag 11.40,12.60 Sp O5/7V

Coord 2000	17247-3412		Discov num	DAW 216		Comp	BC		Coord arcsec 2000	17 24 44.73 -34 12 02.7
Date first	1919		Date last	2015		Obs	6
Pa first	321		Pa last	320.5		P.A. Now (θ)	320.5°
Sep first	5.5		Sep last	4.854		Sep. Now (ρ)	4.854"
Mag pri	11.40		Mag sec	12.60		delta mag (ΔM)	1.2		Spectral class	O5/7V (blue)
Pri motion ra	+001		Sec motion ra	-017
Pri motion dec	-011		Sec motion dec	+060
Notes	N (See Notes)

rPM=1.175

This double is not physical.

17247-3412 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			17 24 43 -34 11 57	MZA 36 Aa,Ab	2012	2	206	0.4	11.00	11.11	0.11
Show			17 24 43 -34 11 57	HJ 4946 AB	2015	8	110	16.4	10.44	11.40	0.96
Show			17 24 43 -34 11 57	SNA 71 AF	2012	1	254	4.2	5.89	10.70	4.81
Show			17 24 43 -34 11 57	SNA 71 AG	2012	1	46	4.4	5.89	12.33	6.44
Show			17 24 43 -34 11 57	SNA 71 AH	2012	1	92	5.3	5.89	13.24	7.35
Show			17 24 43 -34 11 57	SNA 71 AI	2012	1	308	5.3	5.89	13.39	7.50
Show			17 24 43 -34 11 57	SNA 71 AJ	2015	2	295	6.9	5.89	12.35	6.46
Show			17 24 45 -34 12 03	DAW 216 BC	2015	6	321	4.9	11.40	12.60	1.20		<===
Show			17 24 44 -34 11 59	WSI 62 CD	2015	2	205	3.5	12.60	14.60	2.00
Show			17 24 44 -34 11 59	WSI 62 CE	2006	2	182	3.6	12.60	15.40	2.80

11-fold system
10 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Scorpius

Gaia DR2

5976057082372349568