17336-3706 TNG 1 Aa,Ab

Coord 2000	17336-3706		Discov num	TNG   1		Comp	Aa,Ab		Coord arcsec 2000	17 33 36.52 -37 06 13.8
Date first	1999		Date last	2021		Obs	39
Pa first	266		Pa last	98.4		P.A. Now (θ)	98.4°
Sep first	0.0		Sep last	0.046		Sep. Now (ρ)	0.046"
Mag pri	2.08		Mag sec	2.73		delta mag (ΔM)	0.65		Spectral class	B2IV (blue-white)
Pri motion ra	-001		Sec motion ra
Pri motion dec	-029		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show		208954	17 33 37 -37 06 14	TNG 1 Aa,Ab	2021	39	98	0.0	2.08	2.73	0.65	Y	<===
Show		208954	17 33 37 -37 06 14	SEE 334 AB	2000	2	106	42.4	1.60	14.90	13.30
Show	Shaula	208954	17 33 37 -37 06 14	DUN 218 AC	2016	9	330	94.4	1.60	9.17	7.57

Quadruple system
3 estimated visually detectable stars in this system

Common name	Shaula		Constellation	Scorpius		SAO	208954		HIP	85927
Tycho2	7388-01093-1		HD	158926		HR	6527		GC	23769
CD	CD-3711673		CP	CP-37 7265		Bayer	Lambda Scorpii		Bayer name	Lam Sco
Flamsteed	35 Scorpii		Flamsteed name	35 Sco		FK5	652		Distance	175.13
Distance ly	571.27		Bayer greek	λ Sco

Meaning

tail lift

Period (P)	1052.8d (2.88y)	± 1.2	Periastron (T)	51562.3m (2000.05y)	± 2.8	Semi-major axis (a)	49.3m	± 0.3
Eccentricity (e)	0.121	± 0.005	Inclination (i)	77.2°	± 0.2	Longitude of periastron (ω)	74.8°	± 0.9
Node (Ω)	271.3°	± 0.15	Notes	n		Reference	Tng2006
Equinox			Last observation			Grade	2	(1=Definitive, 9=Indet.)

label theta rho 2000-01-01 298.6 0.019 2001-01-01 97.1 0.048 2002-01-01 254.8 0.033 2003-01-01 342.2 0.010 2004-01-01 100.9 0.043 2005-01-01 260.8 0.040 2006-01-01 50.1 0.014 2007-01-01 105.7 0.037 2008-01-01 265.1 0.045 2009-01-01 71.9 0.025 2010-01-01 113.2 0.029 2011-01-01 268.8 0.047 2012-01-01 80.5 0.036 2013-01-01 126.8 0.020 2014-01-01 272.3 0.047 2015-01-01 85.5 0.044 2016-01-01 157.1 0.013 2017-01-01 276.2 0.042 2018-01-01 89.2 0.049 2019-01-01 206.8 0.013 2020-01-01 281.4 0.035 2021-01-01 92.3 0.051 2022-01-01 237.0 0.020 2023-01-01 290.3 0.025 2024-01-01 95.5 0.050 2025-01-01 250.6 0.029 2026-01-01 313.0 0.014 2027-01-01 98.9 0.046 2028-01-01 258.0 0.036 2029-01-01 22.1 0.010 2030-01-01 103.1 0.040		Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
		Measures: green=micrometric, blue=interferometric, purple=photographic

discov_num	notes	refcode
SEE 334	AB: lam Sco = 35 Sco = Shaula. Variable. Spectroscopic binary.
TNG 1	Aa,Ab: The combined solution orbit by Tango et al. (2006) determines	Tng2006
	component masses of 10.4 +/- 1.3 Msun and 8.1 +/- 1.0 Msun. There is
	also a pre-MS subcomponent to A with a mass of 1.8 +/- 0.2 Msun. The
	dynamical parallax is 112 +/- 5 mas, about a factor of two smaller
	than the Hipparcos value of 216 +/- 42. The dynamical value is much
	more accurate. Two components have calculated effective temperatures
	of 25000 +/- 1000 and 21000 +/- 1000 degrees Kelvin, respectively.
	Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
	spectroscopic masses 77.47 +/- 30.56, 22.63, 10.96 Msun, respectively.	Mlk2012

refcode	metd	author	reference
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012
Tng2006	Ks j	Tango, W.J., Davis, J., Ireland, M.J., Aerts, C., Uytterhoeven, K., Jacob, A.P.,	2006MNRAS.370..884T
Tng2006		Mendez, A., North, J.R., et al.
Tng2006		MNRAS 370, 884, 2006

idgroup	discov	author
1	DUN	Dunlop, J.
3	SEE	See, T.J.J.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17336-3706	TNG 1	Aa,Ab	2005	31	284	0.0	2.08	2.73	B2IV	NOD	173336.52-370613.8
17336-3706	TNG 1	Aa,Ab	2009	35	86	0.0	2.08	2.73	B2IV	NOD	173336.52-370613.8
17336-3706	TNG 1	Aa,Ab	2014	36	104	0.0	2.08	2.73	B2IV	NO	173336.52-370613.8
17336-3706	TNG 1	Aa,Ab	2018	37	95	0.0	2.08	2.73	B2IV	NO	173336.52-370613.8
17336-3706	TNG 1	Aa,Ab	2019	38	259	0.0	2.08	2.73	B2IV	NO	173336.52-370613.8
17336-3706	TNG 1	Aa,Ab	2021	39	98	0.0	2.08	2.73	B2IV	NO	173336.52-370613.8

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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

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
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Show name coord_2000 discov# comp pa sep dist(') Show Shaula 17336-3706 TNG 1 Aa,Ab 98 0.0 Show Shaula 17336-3706 SEE 334 AB 106 42.4 Show Shaula 17336-3706 DUN 218 AC 330 94.4 Show 17324-3642 ARY 94 352 44.0 29 Show 17316-3725 TDT 395 295 1.9 31 Show 17308-3726 B 912 199 0.3 40 Show 17346-3624 JSP 718 309 1.4 44 Show 17336-3800 B 913 57 1.1 54 Show 17381-3654 RST3114 63 0.9 56 Show 17315-3616 BRT1723 229 3.3 57 Show 17289-3647 CHR 183 70 0.2 60 Show 17375-3747 B 915 AB 328 0.2 62 Show 17375-3747 COO 216 AB,C 194 13.9 62 Show 17286-3638 NSN 383 16 1.6 67 Show 17379-3752 I 247 AB 109 0.3 68 Show 17379-3752 I 247 AC 334 0.2 68 Show 17378-3619 BRT1731 322 4.6 70 Show 17340-3557 VOU 93 160 1.4 70 Show 17367-3607 WFC 197 280 9.4 70 Show 17385-3755 JSP 720 342 2.2 78 Show 17349-3549 BRT1729 177 4.0 79 Show 17336-3547 BRT1725 245 4.2 79 Show 17401-3648 RST3119 358 1.2 80 Show 17337-3546 VOU 70 AB 70 5.6 81 Show 17404-3707 RSS 455 95 10.3 81 Show 17383-3807 KPP2059 299 16.5 83 Show 17342-3544 VOU 71 138 9.3 83 Show 17303-3552 HDS2472 348 0.5 85 Show 17358-3542 VOU 72 150 1.4 88 Show 17318-3833 RST1965 357 0.5 89 Show 17401-3749 JSP 721 122 3.7 90 Show 17261-3718 RST3096 106 0.5 91 Show 17352-3837 RST1973 116 3.7 94 Show 17390-3559 I 606 82 2.0 94 Show 17374-3544 HDS2488 AB 289 0.3 95 Show 17374-3544 HDS2488 AC 80 2.2 95 Show 17315-3838 ARY 123 AB 168 9.1 95 Show 17315-3838 ARY 123 AC 166 43.9 95 Show 17281-3555 BRT1720 223 2.7 97 Show 17411-3739 JSP 933 339 5.7 98 Show 17294-3831 B 342 115 0.4 99 Show 17255-3647 BRT1718 73 2.4 100 Show 17254-3727 BRT1717 139 3.9 100 Show 17303-3839 I 1325 77 3.2 101 Show 17293-3839 TOK 792 307 1.6 106 Show 17271-3554 BRT1719 328 2.2 107 Show 17247-3649 BRT1716 321 3.1 108 Show 17243-3722 RST3091 1 2.4 113 Show 17268-3548 LDS 598 293 16.8 114 Show 17313-3901 HWE 87 233 3.2 118 Show 17425-3801 JSP 724 AB 152 119.5 120

	A	Ab	B
Ab	pa=100.5° sep=0.04"
B	pa=110.1° sep=34.54"	pa=110.1° sep=34.50"
C	pa=334.8° sep=89.85"	pa=334.8° sep=89.87"	pa=322.8° sep=116.95"

Common name	Shaula		Meaning	tail lift		Coord arcsec 2000	173336.52-370613.8		Mag	1.6
Spectral class	B2IV (blue-white)		PmRA	-1.00		PmDE	-29.0		SAO	208954
HIP	85927		Tycho2	7388-01093-1		HD	158926		HR	6527
GC	23769		CD	CD-3711673		CP	CP-37 7265		Bayer	Lambda Scorpii
Bayer name	Lam Sco		Flamsteed	35 Scorpii		Flamsteed name	35 Sco		FK5	652

SAO	208954		DelFlag			RA1950			PmRA1950	0.0001
DE1950			PmDE1950	-0.029		Vmag	1.7		SpType	B2
Double code			Source	74		CatNum	652		DM	CD-3711673
DMcomp			BDsup			HD	158926		M HD	0
GC	23769		RA1950rad	4.58240746		DE1950rad	-0.64698206		PmRA2000	0.0001
PmDE2000	-0.028

Catalog	H		HIP	85927		Proxy			RAhms	17 33 36.53
DEdms	-37 06 13.5		Vmag	1.62		VarFlag	1		R Vmag	G
RAdeg	263.402		DEdeg	-37.1037		AstroRef			Plx	4.64
CCDM	17336-3706		N CCDM	I		Nsys	1		Ncomp	1
MultFlag			Source			Qual			M HIP
Theta			Rho			HD	158926		BD
CD	CD-3711673		CP	CP-37 7265		Dm number	-3711673		VIred	-0.24
SpType	B1.5IV+...		R SpType			Coord arcsec 2000	173336.53-370613.5

HIP	85927		Sn	1		So	0		Nc	1
RArad	4.597235528		DErad	-0.6475825794		Plx	5.71		PmRA	-8.53
PmDE	-30.8		E RArad	0.66		E DErad	0.5		E Plx	0.75
E pmRA	1.08		E pmDE	0.62		Hpmag	1.5244		E Hpmag	0.0029
SHp	0.016		VA	1		BV	-0.231		E BV	0.008
VI	-0.24

Ccdm	17336-3706		RComp			Comp	A		Note1
Note2			Discov num			DRAs	0.55		DDEs	-12.7
R dRAs	41		Year			Theta			Rho
Obs	3		Vmag	1.7		Sp	B2		PmNote	*
PmRA	2		PmDE	-29		Dm number	-3711673		Cat1	CD
Name2	208954		Cat2	SAO		HD	158926		M HD
ADS BDS			M ADS BDS			N IDS			IDS	17268S3702A
HIC	85927

Coord arcsec 2000

173336.52-370613.8

Mag

2.73

Calc delta mag

0.65

Calc coord

yes

Coord arcsec 2000	173339.23-370625.7		Mag	14.9		Spectral class	B (blue-white)		Calc delta mag	12.82
Calc coord	yes

Ccdm	17336-3706		RComp			Comp	B		Note1
Note2			Discov num	SEE 334		DRAs	6.58		DDEs	-43.4
R dRAs	41		Year	1897		Theta	109		Rho	41.7
Obs	1		Vmag	14.9		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS	17268S3702B
HIC

Coord arcsec 2000	173333.33-370452.5		Mag	9.17		Spectral class	B (blue-white)		PmRA	-6.00
PmDE	-24.0		Tycho2	7388-01000-1		Calc delta mag	7.09		Calc coord	yes

Tycho2	7388-01000-1		Pflag			RAmdeg	263.38572810		DEmdeg	-37.08113570
PmRA	-3.8		PmDE	-32.3		E RAmdeg	28		E DEmdeg	33
E pmRA	1.5		E pmDE	1.7		EpRAm	1978.26		EpDEm	1972.50
Num	10		Q RAmdeg	0.9		Q DEmdeg	1.4		Q pmRA	0.9
Q pmDE	1.5		BTmag	9.580		E BTmag	0.030		VTmag	9.165
E VTmag	0.026		Prox	944		TYC	T		HIP
CCDM			RAdeg	263.38575250		DEdeg	-37.08103528		EpRA 1990	1.68
EpDE 1990	1.28		E RAdeg	39.4		E DEdeg	59.1		Posflg
Corr	0.0

Ccdm	17336-3706		RComp			Comp	C		Note1
Note2			Discov num	DUN 218		DRAs	-3.47		DDEs	67.8
R dRAs	41		Year	1897		Theta	331		Rho	94.9
Obs	1		Vmag	12.0		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS	17268S3702C
HIC