19124-3304 OL 22 (HD 179058)
19h 12m 25.18s -33° 03' 43.4" P.A. 54.00 sep 0.6 mag 8.36,9.51 Sp F8/G0V dist. 89.45 pc (291.79 l.y.)
| Coord 2000 |
19124-3304 |
|
Discov num |
OL 22 |
|
Comp |
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|
Coord arcsec 2000 |
19 12 25.18 -33 03 43.4 |
|
| Date first |
1909 |
|
Date last |
2015 |
|
Obs |
36 |
|
| Pa first |
66 |
|
Pa last |
54.2 |
|
P.A. Now (θ) |
61.1° |
|
| Sep first |
0.7 |
|
Sep last |
0.558 |
|
Sep. Now (ρ) |
0.549" |
|
| Mag pri |
8.36 |
|
Mag sec |
9.51 |
|
delta mag (ΔM) |
1.15 |
|
Spectral class |
F8/G0V (yellow-white) |
|
| Pri motion ra |
-033 |
|
Sec motion ra |
-033 |
|
| Pri motion dec |
+036 |
|
Sec motion dec |
+036 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 179058 |
|
Constellation |
Sagittarius |
|
SAO |
211041 |
|
HIP |
94367 |
|
| Tycho2 |
7427-00921-1 |
|
Gaia DR2 |
6756093782648704896 |
|
HD |
179058 |
|
CD |
CD-3314011 |
|
| CP |
CP-33 5517 |
|
Distance |
89.45 |
|
Distance ly |
291.79 |
|
ORBITAL ELEMENTS
| Period (P) | 125.83y | |
Periastron (T) | 1971.38y | |
Semi-major axis (a) | 0.392a | |
| Eccentricity (e) | 0.548 | |
Inclination (i) | 37.7° | |
Longitude of periastron (ω) | 49.6° | |
| Node (Ω) | 209.2° | |
Notes | n | |
Reference | Hrt2014b | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
36.3 |
0.467 |
| 2001 |
37.6 |
0.475 |
| 2002 |
38.9 |
0.482 |
| 2003 |
40.1 |
0.488 |
| 2004 |
41.3 |
0.494 |
| 2005 |
42.5 |
0.500 |
| 2006 |
43.7 |
0.505 |
| 2007 |
44.8 |
0.510 |
| 2008 |
45.9 |
0.515 |
| 2009 |
47.0 |
0.519 |
| 2010 |
48.1 |
0.523 |
| 2011 |
49.1 |
0.527 |
| 2012 |
50.2 |
0.530 |
| 2013 |
51.2 |
0.533 |
| 2014 |
52.2 |
0.536 |
| 2015 |
53.2 |
0.539 |
| 2016 |
54.2 |
0.541 |
| 2017 |
55.2 |
0.543 |
| 2018 |
56.2 |
0.544 |
| 2019 |
57.2 |
0.546 |
| 2020 |
58.1 |
0.547 |
| 2021 |
59.1 |
0.548 |
| 2022 |
60.1 |
0.548 |
| 2023 |
61.1 |
0.549 |
| 2024 |
62.0 |
0.549 |
| 2025 |
63.0 |
0.549 |
| 2026 |
64.0 |
0.548 |
| 2027 |
64.9 |
0.548 |
| 2028 |
65.9 |
0.547 |
| 2029 |
66.9 |
0.546 |
| 2030 |
67.8 |
0.545 |
|
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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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