17336-3706 TNG 1 Aa,Ab
17h 33m 36.52s -37° 06' 13.8" P.A. 98.00 sep 0.0 mag 2.08,2.73 Sp B2IV dist. 175.13 pc (571.27 l.y.)
Coord 2000 |
17336-3706 |
|
Discov num |
TNG 1 |
|
Comp |
Aa,Ab |
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Coord arcsec 2000 |
17 33 36.52 -37 06 13.8 |
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Date first |
1999 |
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Date last |
2021 |
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Obs |
39 |
|
Pa first |
266 |
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Pa last |
98.4 |
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P.A. Now (θ) |
98.4° |
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Sep first |
0.0 |
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Sep last |
0.046 |
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Sep. Now (ρ) |
0.046" |
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Mag pri |
2.08 |
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Mag sec |
2.73 |
|
delta mag (ΔM) |
0.65 |
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Spectral class |
B2IV (blue-white) |
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Pri motion ra |
-001 |
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Sec motion ra |
|
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Pri motion dec |
-029 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
17336-3706 SYSTEM COMPONENTS
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 |
|
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Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Common name |
Shaula |
|
Constellation |
Scorpius |
|
SAO |
208954 |
|
HIP |
85927 |
|
Tycho2 |
7388-01093-1 |
|
HD |
158926 |
|
HR |
6527 |
|
GC |
23769 |
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CD |
CD-3711673 |
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CP |
CP-37 7265 |
|
Bayer |
Lambda Scorpii |
|
Bayer name |
Lam Sco |
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Flamsteed |
35 Scorpii |
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Flamsteed name |
35 Sco |
|
FK5 |
652 |
|
Distance |
175.13 |
|
Distance ly |
571.27 |
|
Bayer greek |
λ Sco |
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ORBITAL ELEMENTS
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 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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