17290-2420 RST 3105
17h 29m 00.20s -24° 20' 11.1" P.A. 247.00 sep 0.2 mag 8.55,12.61 Sp G2V dist. 58.93 pc (192.23 l.y.)
| Coord 2000 |
17290-2420 |
|
Discov num |
RST3105 |
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Comp |
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Coord arcsec 2000 |
17 29 00.20 -24 20 11.1 |
|
| Date first |
1935 |
|
Date last |
2021 |
|
Obs |
8 |
|
| Pa first |
18 |
|
Pa last |
246.7 |
|
P.A. Now (θ) |
246.7° |
|
| Sep first |
1.0 |
|
Sep last |
0.218 |
|
Sep. Now (ρ) |
0.218" |
|
| Mag pri |
8.55 |
|
Mag sec |
12.61 |
|
delta mag (ΔM) |
4.06 |
|
Spectral class |
G2V (yellow) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
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| Pri motion dec |
-019 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
SAO |
185442 |
|
HIP |
85548 |
|
Tycho2 |
6826-00232-1 |
|
| Gaia DR2 |
4110493197968056192 |
|
HD |
158213 |
|
CD |
CD-2413366 |
|
CP |
CP-24 5906 |
|
| Distance |
58.93 |
|
Distance ly |
192.23 |
|
ORBITAL ELEMENTS
| Period (P) | 247.872y | |
Periastron (T) | 2024.331y | |
Semi-major axis (a) | 0.842a | |
| Eccentricity (e) | 0.616 | |
Inclination (i) | 132.8° | |
Longitude of periastron (ω) | 296.6° | |
| Node (Ω) | 162.7° | |
Notes | n | |
Reference | Tok2018e | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
337.1 |
0.645 |
| 2001 |
335.7 |
0.627 |
| 2002 |
334.3 |
0.609 |
| 2003 |
332.7 |
0.590 |
| 2004 |
331.1 |
0.570 |
| 2005 |
329.4 |
0.550 |
| 2006 |
327.5 |
0.530 |
| 2007 |
325.4 |
0.508 |
| 2008 |
323.2 |
0.487 |
| 2009 |
320.8 |
0.464 |
| 2010 |
318.1 |
0.441 |
| 2011 |
315.1 |
0.418 |
| 2012 |
311.7 |
0.394 |
| 2013 |
308.0 |
0.371 |
| 2014 |
303.7 |
0.347 |
| 2015 |
298.8 |
0.324 |
| 2016 |
293.1 |
0.302 |
| 2017 |
286.6 |
0.281 |
| 2018 |
279.1 |
0.262 |
| 2019 |
270.6 |
0.246 |
| 2020 |
261.0 |
0.235 |
| 2021 |
250.7 |
0.228 |
| 2022 |
240.0 |
0.227 |
| 2023 |
229.4 |
0.231 |
| 2024 |
219.4 |
0.240 |
| 2025 |
210.3 |
0.253 |
| 2026 |
202.2 |
0.269 |
| 2027 |
195.1 |
0.287 |
| 2028 |
188.8 |
0.305 |
| 2029 |
183.2 |
0.324 |
| 2030 |
178.3 |
0.343 |
|
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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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