04275-2427 I 413 (HD 28368)
04h 27m 31.65s -24° 27' 26.4" P.A. 331.00 sep 0.7 mag 8.51,9.48 Sp G0V dist. 72.94 pc (237.93 l.y.)
| Coord 2000 |
04275-2427 |
|
Discov num |
I 413 |
|
Comp |
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Coord arcsec 2000 |
04 27 31.65 -24 27 26.4 |
|
| Date first |
1902 |
|
Date last |
2016 |
|
Obs |
25 |
|
| Pa first |
330 |
|
Pa last |
330.9 |
|
P.A. Now (θ) |
330.9° |
|
| Sep first |
0.7 |
|
Sep last |
0.729 |
|
Sep. Now (ρ) |
0.729" |
|
| Mag pri |
8.51 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
0.97 |
|
Spectral class |
G0V (yellow) |
|
| Pri motion ra |
-034 |
|
Sec motion ra |
-034 |
|
| Pri motion dec |
-056 |
|
Sec motion dec |
-056 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 28368 |
|
Constellation |
Eridanus |
|
SAO |
169469 |
|
HIP |
20807 |
|
| Tycho2 |
6457-02465-1 |
|
Gaia DR2 |
4896225883800843136 |
|
HD |
28368 |
|
ADS |
3241 |
|
| CD |
CD-24 2354 |
|
CP |
CP-24 617 |
|
Distance |
72.94 |
|
Distance ly |
237.93 |
|
ORBITAL ELEMENTS
| Period (P) | 142.4y | |
Periastron (T) | 1968.6y | |
Semi-major axis (a) | 0.484a | |
| Eccentricity (e) | 0.75 | |
Inclination (i) | 31.7° | |
Longitude of periastron (ω) | 69.7° | |
| Node (Ω) | 95.9° | |
Notes | n | |
Reference | Hrt2010a | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
315.2 |
0.607 |
| 2001 |
316.1 |
0.615 |
| 2002 |
316.9 |
0.623 |
| 2003 |
317.8 |
0.630 |
| 2004 |
318.6 |
0.637 |
| 2005 |
319.4 |
0.644 |
| 2006 |
320.2 |
0.651 |
| 2007 |
321.0 |
0.657 |
| 2008 |
321.8 |
0.663 |
| 2009 |
322.5 |
0.669 |
| 2010 |
323.3 |
0.674 |
| 2011 |
324.0 |
0.680 |
| 2012 |
324.7 |
0.685 |
| 2013 |
325.4 |
0.689 |
| 2014 |
326.1 |
0.694 |
| 2015 |
326.8 |
0.698 |
| 2016 |
327.5 |
0.702 |
| 2017 |
328.1 |
0.706 |
| 2018 |
328.8 |
0.710 |
| 2019 |
329.5 |
0.713 |
| 2020 |
330.1 |
0.716 |
| 2021 |
330.8 |
0.719 |
| 2022 |
331.4 |
0.722 |
| 2023 |
332.0 |
0.724 |
| 2024 |
332.7 |
0.727 |
| 2025 |
333.3 |
0.729 |
| 2026 |
333.9 |
0.731 |
| 2027 |
334.6 |
0.732 |
| 2028 |
335.2 |
0.734 |
| 2029 |
335.8 |
0.735 |
| 2030 |
336.4 |
0.736 |
|
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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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