17158-3344 SEE 322 AB
17h 15m 50.75s -33° 44' 13.2" P.A. 277.00 sep 0.2 mag 7.04,7.65 Sp B1/2Ib/II dist. 833.33 pc (2718.32 l.y.)
| Coord 2000 |
17158-3344 |
|
Discov num |
SEE 322 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 15 50.75 -33 44 13.2 |
|
| Date first |
1897 |
|
Date last |
2018 |
|
Obs |
26 |
|
| Pa first |
1 |
|
Pa last |
276.5 |
|
P.A. Now (θ) |
276.5° |
|
| Sep first |
0.2 |
|
Sep last |
0.197 |
|
Sep. Now (ρ) |
0.197" |
|
| Mag pri |
7.04 |
|
Mag sec |
7.65 |
|
delta mag (ΔM) |
0.61 |
|
Spectral class |
B1/2Ib/II (blue-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
|
|
| Pri motion dec |
+002 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
17158-3344 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
208604 |
17 15 51 -33 44 13 |
SEE 322 AB |
2018 |
26 |
277 |
0.2 |
7.04 |
7.65 |
0.61 |
Y |
<=== |
| Show |
HD 155889 |
208604 |
17 15 51 -33 44 13 |
SNA 66 AC |
2015 |
2 |
272 |
7.0 |
6.59 |
12.19 |
5.60 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Scorpius |
|
SAO |
208604 |
|
HIP |
84444 |
|
Tycho2 |
7366-01100-1 |
|
| Gaia DR2 |
5978967936370825472 |
|
HD |
155889 |
|
GC |
23284 |
|
CD |
CD-3311887 |
|
| Distance |
833.33 |
|
Distance ly |
2718.32 |
|
ORBITAL ELEMENTS
| Period (P) | 536y | |
Periastron (T) | 1870y | |
Semi-major axis (a) | 0.35a | |
| Eccentricity (e) | 0.64 | |
Inclination (i) | 111° | |
Longitude of periastron (ω) | 109° | |
| Node (Ω) | 167° | |
Notes | | |
Reference | Trn2008 | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
287.0 |
0.186 |
| 2001 |
286.3 |
0.186 |
| 2002 |
285.7 |
0.186 |
| 2003 |
285.0 |
0.185 |
| 2004 |
284.4 |
0.185 |
| 2005 |
283.7 |
0.185 |
| 2006 |
283.0 |
0.185 |
| 2007 |
282.4 |
0.184 |
| 2008 |
281.7 |
0.184 |
| 2009 |
281.0 |
0.184 |
| 2010 |
280.4 |
0.184 |
| 2011 |
279.7 |
0.184 |
| 2012 |
279.0 |
0.183 |
| 2013 |
278.3 |
0.183 |
| 2014 |
277.7 |
0.183 |
| 2015 |
277.0 |
0.183 |
| 2016 |
276.3 |
0.183 |
| 2017 |
275.6 |
0.183 |
| 2018 |
275.0 |
0.183 |
| 2019 |
274.3 |
0.183 |
| 2020 |
273.6 |
0.183 |
| 2021 |
272.9 |
0.183 |
| 2022 |
272.2 |
0.183 |
| 2023 |
271.6 |
0.183 |
| 2024 |
270.9 |
0.183 |
| 2025 |
270.2 |
0.183 |
| 2026 |
269.5 |
0.183 |
| 2027 |
268.9 |
0.183 |
| 2028 |
268.2 |
0.183 |
| 2029 |
267.5 |
0.183 |
| 2030 |
266.8 |
0.183 |
|
|
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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