04123+0939 STT 74 (HD 26547)
04h 12m 16.47s +09° 39' 00.5" P.A. 111.00 sep 0.5 mag 8.30,8.80 Sp F0
| Coord 2000 |
04123+0939 |
|
Discov num |
STT 74 |
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Comp |
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Coord arcsec 2000 |
04 12 16.47 +09 39 00.5 |
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| Date first |
1845 |
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Date last |
2020 |
|
Obs |
67 |
|
| Pa first |
283 |
|
Pa last |
110.9 |
|
P.A. Now (θ) |
110.9° |
|
| Sep first |
0.3 |
|
Sep last |
0.497 |
|
Sep. Now (ρ) |
0.497" |
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| Mag pri |
8.30 |
|
Mag sec |
8.80 |
|
delta mag (ΔM) |
0.5 |
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Spectral class |
F0 (yellow-white) |
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| Pri motion ra |
-001 |
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Sec motion ra |
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| Pri motion dec |
-014 |
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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
| Name |
HD 26547 |
|
Constellation |
Taurus |
|
SAO |
111657 |
|
Tycho2 |
0670-00319-1 |
|
| Gaia DR2 |
3300345817635357568 |
|
HD |
26547 |
|
ADS |
3053 |
|
ORBITAL ELEMENTS
| Period (P) | 272.5y | |
Periastron (T) | 1993.23y | |
Semi-major axis (a) | 0.728a | |
| Eccentricity (e) | 0.397 | |
Inclination (i) | 96.6° | |
Longitude of periastron (ω) | 262.5° | |
| Node (Ω) | 106° | |
Notes | | |
Reference | Msn2019 | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
129.6 |
0.125 |
| 2001 |
125.6 |
0.147 |
| 2002 |
122.6 |
0.171 |
| 2003 |
120.4 |
0.194 |
| 2004 |
118.6 |
0.216 |
| 2005 |
117.2 |
0.239 |
| 2006 |
116.0 |
0.261 |
| 2007 |
115.0 |
0.283 |
| 2008 |
114.1 |
0.304 |
| 2009 |
113.4 |
0.325 |
| 2010 |
112.7 |
0.345 |
| 2011 |
112.2 |
0.365 |
| 2012 |
111.6 |
0.384 |
| 2013 |
111.2 |
0.403 |
| 2014 |
110.7 |
0.421 |
| 2015 |
110.3 |
0.438 |
| 2016 |
109.9 |
0.455 |
| 2017 |
109.6 |
0.471 |
| 2018 |
109.3 |
0.487 |
| 2019 |
109.0 |
0.502 |
| 2020 |
108.7 |
0.516 |
| 2021 |
108.4 |
0.530 |
| 2022 |
108.2 |
0.543 |
| 2023 |
107.9 |
0.555 |
| 2024 |
107.7 |
0.567 |
| 2025 |
107.5 |
0.579 |
| 2026 |
107.2 |
0.590 |
| 2027 |
107.0 |
0.600 |
| 2028 |
106.8 |
0.610 |
| 2029 |
106.6 |
0.619 |
| 2030 |
106.5 |
0.627 |
|
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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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