16003-2237 LAB 3 (Dschubba)
16h 00m 20.01s -22° 37' 17.8" P.A. 16.00 sep 0.1 mag 2.39,4.62 Sp B0.3IV+B2 dist. 150.6 pc (491.26 l.y.)
Coord 2000 |
16003-2237 |
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Discov num |
LAB 3 |
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Comp |
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Coord arcsec 2000 |
16 00 20.01 -22 37 17.8 |
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Date first |
1973 |
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Date last |
2021 |
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Obs |
201 |
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Pa first |
351 |
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Pa last |
16.2 |
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P.A. Now (θ) |
332.2° |
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Sep first |
0.2 |
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Sep last |
0.076 |
|
Sep. Now (ρ) |
0.073" |
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Mag pri |
2.39 |
|
Mag sec |
4.62 |
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delta mag (ΔM) |
2.23 |
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Spectral class |
B0.3IV+B2 (blue-white/blue-white) |
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Pri motion ra |
-012 |
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Sec motion ra |
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Pri motion dec |
-022 |
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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.
OTHER CATALOGS AND DESIGNATIONS
Common name |
Dschubba |
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Constellation |
Scorpius |
|
SAO |
184014 |
|
HIP |
78401 |
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Tycho2 |
6779-02194-1 |
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HD |
143275 |
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HR |
5953 |
|
GC |
21489 |
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BD |
BD-22 4068 |
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CD |
CD-2211292 |
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CP |
CP-22 6106 |
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Bayer |
Delta Scorpii |
|
Bayer name |
Del Sco |
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Flamsteed |
7 Scorpii |
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Flamsteed name |
7 Sco |
|
FK5 |
594 |
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Distance |
150.6 |
|
Distance ly |
491.26 |
|
Bayer greek |
δ Sco |
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ORBITAL ELEMENTS
Period (P) | 3945.4d (10.8y) | ± 2.8 |
Periastron (T) | 55745.29m (2011.503y) | ± 0.19 |
Semi-major axis (a) | 98.94m | ± 0.14 |
Eccentricity (e) | 0.9373 | ± 0.0009 |
Inclination (i) | 34.12° | ± 0.79 |
Longitude of periastron (ω) | 359.5° | ± 2.5 |
Node (Ω) | 175° | ± 2.1 |
Notes | n | |
Reference | CIA2012c | |
Equinox | 2000 | |
Last observation | 2011 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
16.8 |
0.073 |
2001 |
319.8 |
0.040 |
2002 |
339.3 |
0.108 |
2003 |
345.1 |
0.147 |
2004 |
348.8 |
0.172 |
2005 |
351.7 |
0.186 |
2006 |
354.3 |
0.192 |
2007 |
356.9 |
0.188 |
2008 |
359.7 |
0.176 |
2009 |
3.2 |
0.153 |
2010 |
8.3 |
0.118 |
2011 |
21.1 |
0.058 |
2012 |
327.8 |
0.058 |
2013 |
340.8 |
0.117 |
2014 |
346.0 |
0.153 |
2015 |
349.4 |
0.176 |
2016 |
352.2 |
0.188 |
2017 |
354.8 |
0.192 |
2018 |
357.4 |
0.187 |
2019 |
0.3 |
0.172 |
2020 |
4.0 |
0.148 |
2021 |
9.8 |
0.108 |
2022 |
28.9 |
0.041 |
2023 |
332.2 |
0.073 |
2024 |
342.1 |
0.126 |
2025 |
346.7 |
0.159 |
2026 |
350.0 |
0.179 |
2027 |
352.8 |
0.190 |
2028 |
355.3 |
0.191 |
2029 |
358.0 |
0.184 |
2030 |
1.0 |
0.168 |
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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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