08173-0522 A 337 (HD 69526)
08h 17m 15.69s -05° 22' 08.8" P.A. 55.00 sep 0.5 mag 7.99,9.57 Sp F2 dist. 111.11 pc (362.44 l.y.)
| Coord 2000 |
08173-0522 |
|
Discov num |
A 337 |
|
Comp |
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Coord arcsec 2000 |
08 17 15.69 -05 22 08.8 |
|
| Date first |
1902 |
|
Date last |
2021 |
|
Obs |
46 |
|
| Pa first |
63 |
|
Pa last |
54.8 |
|
P.A. Now (θ) |
55.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.544 |
|
Sep. Now (ρ) |
0.55" |
|
| Mag pri |
7.99 |
|
Mag sec |
9.57 |
|
delta mag (ΔM) |
1.58 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
-026 |
|
Sec motion ra |
-026 |
|
| Pri motion dec |
+030 |
|
Sec motion dec |
+030 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 69526 |
|
Constellation |
Hydra |
|
SAO |
135730 |
|
HIP |
40592 |
|
| Tycho2 |
4856-01454-1 |
|
Gaia DR2 |
3064606504551646208 |
|
HD |
69526 |
|
ADS |
6719 |
|
| BD |
BD-04 2288 |
|
Distance |
111.11 |
|
Distance ly |
362.44 |
|
ORBITAL ELEMENTS
| Period (P) | 207y | |
Periastron (T) | 1900.7y | |
Semi-major axis (a) | 0.465a | |
| Eccentricity (e) | 0.312 | |
Inclination (i) | 129.6° | |
Longitude of periastron (ω) | 311.7° | |
| Node (Ω) | 215.1° | |
Notes | n | |
Reference | Tok2014a | |
| Equinox | 2000 | |
Last observation | 2013 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
74.6 |
0.483 |
| 2001 |
73.7 |
0.487 |
| 2002 |
72.7 |
0.491 |
| 2003 |
71.8 |
0.495 |
| 2004 |
70.9 |
0.498 |
| 2005 |
70.0 |
0.502 |
| 2006 |
69.1 |
0.506 |
| 2007 |
68.2 |
0.509 |
| 2008 |
67.3 |
0.512 |
| 2009 |
66.4 |
0.516 |
| 2010 |
65.6 |
0.519 |
| 2011 |
64.7 |
0.522 |
| 2012 |
63.9 |
0.525 |
| 2013 |
63.1 |
0.528 |
| 2014 |
62.3 |
0.531 |
| 2015 |
61.5 |
0.533 |
| 2016 |
60.7 |
0.536 |
| 2017 |
59.9 |
0.538 |
| 2018 |
59.1 |
0.541 |
| 2019 |
58.3 |
0.543 |
| 2020 |
57.6 |
0.545 |
| 2021 |
56.8 |
0.547 |
| 2022 |
56.0 |
0.549 |
| 2023 |
55.3 |
0.550 |
| 2024 |
54.5 |
0.552 |
| 2025 |
53.8 |
0.553 |
| 2026 |
53.0 |
0.554 |
| 2027 |
52.3 |
0.555 |
| 2028 |
51.6 |
0.556 |
| 2029 |
50.8 |
0.557 |
| 2030 |
50.1 |
0.558 |
|
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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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