04130-2832 HWE 10 (HD 26770)
04h 13m 00.58s -28° 32' 25.8" P.A. 55.00 sep 1.4 mag 8.20,8.27 Sp F7V dist. 59.42 pc (193.83 l.y.)
| Coord 2000 |
04130-2832 |
|
Discov num |
HWE 10 |
|
Comp |
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|
Coord arcsec 2000 |
04 13 00.58 -28 32 25.8 |
|
| Date first |
1875 |
|
Date last |
2016 |
|
Obs |
62 |
|
| Pa first |
35 |
|
Pa last |
54.8 |
|
P.A. Now (θ) |
54.8° |
|
| Sep first |
2.5 |
|
Sep last |
1.374 |
|
Sep. Now (ρ) |
1.374" |
|
| Mag pri |
8.20 |
|
Mag sec |
8.27 |
|
delta mag (ΔM) |
0.07 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
+090 |
|
Sec motion ra |
+090 |
|
| Pri motion dec |
+044 |
|
Sec motion dec |
+044 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 26770 |
|
Constellation |
Eridanus |
|
SAO |
169233 |
|
HIP |
19684 |
|
| Tycho2 |
6462-01479-1 |
|
Gaia DR2 |
4889221651137751040 |
|
HD |
26770 |
|
GC |
5094 |
|
| ADS |
3069 |
|
CD |
CD-28 1457 |
|
CP |
CP-28 485 |
|
Distance |
59.42 |
|
| Distance ly |
193.83 |
|
ORBITAL ELEMENTS
| Period (P) | 1326.4813y | ± 688.5812 |
Periastron (T) | 2085.3905y | ± 34.5859 |
Semi-major axis (a) | 2.43751a | ± 0.88767 |
| Eccentricity (e) | 0.79984 | ± 0.18396 |
Inclination (i) | 60.987° | ± 14.881 |
Longitude of periastron (ω) | 115.748° | ± 37.155 |
| Node (Ω) | 55.518° | ± 20.661 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
51.3 |
1.586 |
| 2001 |
51.5 |
1.575 |
| 2002 |
51.7 |
1.563 |
| 2003 |
51.9 |
1.552 |
| 2004 |
52.1 |
1.540 |
| 2005 |
52.3 |
1.528 |
| 2006 |
52.5 |
1.516 |
| 2007 |
52.7 |
1.504 |
| 2008 |
52.9 |
1.491 |
| 2009 |
53.1 |
1.479 |
| 2010 |
53.3 |
1.467 |
| 2011 |
53.6 |
1.454 |
| 2012 |
53.8 |
1.441 |
| 2013 |
54.0 |
1.428 |
| 2014 |
54.2 |
1.415 |
| 2015 |
54.5 |
1.402 |
| 2016 |
54.7 |
1.389 |
| 2017 |
55.0 |
1.375 |
| 2018 |
55.2 |
1.362 |
| 2019 |
55.5 |
1.348 |
| 2020 |
55.7 |
1.334 |
| 2021 |
56.0 |
1.320 |
| 2022 |
56.3 |
1.306 |
| 2023 |
56.6 |
1.291 |
| 2024 |
56.8 |
1.277 |
| 2025 |
57.1 |
1.262 |
| 2026 |
57.4 |
1.247 |
| 2027 |
57.7 |
1.232 |
| 2028 |
58.0 |
1.217 |
| 2029 |
58.4 |
1.201 |
| 2030 |
58.7 |
1.186 |
|
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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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