17304-0104 STF 2173 AB
17h 30m 23.78s -01° 03' 46.2" P.A. 104.00 sep 0.2 mag 6.06,6.17 Sp G5V dist. 16.34 pc (53.3 l.y.)
Coord 2000 |
17304-0104 |
|
Discov num |
STF2173 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 30 23.78 -01 03 46.2 |
|
Date first |
1829 |
|
Date last |
2021 |
|
Obs |
692 |
|
Pa first |
147 |
|
Pa last |
104.3 |
|
P.A. Now (θ) |
35.5° |
|
Sep first |
0.6 |
|
Sep last |
0.222 |
|
Sep. Now (ρ) |
0.187" |
|
Mag pri |
6.06 |
|
Mag sec |
6.17 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
G5V (yellow) |
|
Pri motion ra |
-127 |
|
Sec motion ra |
-127 |
|
Pri motion dec |
-180 |
|
Sec motion dec |
-180 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
17304-0104 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
141702 |
17 30 24 -01 03 46 |
STF 2173 AB |
2021 |
692 |
104 |
0.2 |
6.06 |
6.17 |
0.11 |
Y |
<=== |
Show |
HD 158614 |
141702 |
17 30 24 -01 03 46 |
CSN 9 AC |
2002 |
1 |
241 |
13.7 |
3.82 |
10.60 |
6.78 |
|
|
Show |
|
141702 |
17 30 24 -01 03 46 |
CSN 9 AD |
2002 |
1 |
317 |
16.9 |
3.82 |
5.50 |
1.68 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
|
SAO |
141702 |
|
HIP |
85667 |
|
Tycho2 |
5080-02188-1 |
|
Gaia DR2 |
4373199682919087616 |
|
HD |
158614 |
|
HR |
6516 |
|
ADS |
10598 |
|
GL |
Gl 678A |
|
BD |
BD-00 3300 |
|
Distance |
16.34 |
|
Distance ly |
53.3 |
|
ORBITAL ELEMENTS
Period (P) | 46.4y | |
Periastron (T) | 1962.46y | |
Semi-major axis (a) | 0.98a | |
Eccentricity (e) | 0.175 | |
Inclination (i) | 99.1° | |
Longitude of periastron (ω) | 327.5° | |
Node (Ω) | 152.1° | |
Notes | n | |
Reference | Hei1994a | |
Equinox | 2000 | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
317.4 |
0.505 |
2001 |
311.4 |
0.381 |
2002 |
299.5 |
0.256 |
2003 |
269.0 |
0.155 |
2004 |
212.4 |
0.156 |
2005 |
182.1 |
0.257 |
2006 |
170.2 |
0.380 |
2007 |
164.1 |
0.499 |
2008 |
160.2 |
0.607 |
2009 |
157.5 |
0.697 |
2010 |
155.3 |
0.765 |
2011 |
153.5 |
0.810 |
2012 |
151.8 |
0.830 |
2013 |
150.1 |
0.826 |
2014 |
148.3 |
0.799 |
2015 |
146.4 |
0.751 |
2016 |
144.2 |
0.686 |
2017 |
141.4 |
0.606 |
2018 |
137.7 |
0.515 |
2019 |
132.3 |
0.417 |
2020 |
123.5 |
0.317 |
2021 |
107.1 |
0.226 |
2022 |
75.2 |
0.169 |
2023 |
35.5 |
0.187 |
2024 |
11.4 |
0.264 |
2025 |
359.3 |
0.363 |
2026 |
352.4 |
0.465 |
2027 |
348.0 |
0.566 |
2028 |
344.9 |
0.663 |
2029 |
342.6 |
0.753 |
2030 |
340.8 |
0.835 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|