04089+2911 BU 1232 (HD 26090)
04h 08m 54.31s +29° 11' 26.7" P.A. 350.00 sep 0.3 mag 8.80,9.60 Sp G0IV dist. 77.88 pc (254.04 l.y.)
| Coord 2000 |
04089+2911 |
|
Discov num |
BU 1232 |
|
Comp |
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Coord arcsec 2000 |
04 08 54.31 +29 11 26.7 |
|
| Date first |
1891 |
|
Date last |
2011 |
|
Obs |
43 |
|
| Pa first |
350 |
|
Pa last |
350.2 |
|
P.A. Now (θ) |
350.2° |
|
| Sep first |
0.3 |
|
Sep last |
0.34 |
|
Sep. Now (ρ) |
0.34" |
|
| Mag pri |
8.80 |
|
Mag sec |
9.60 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
G0IV (yellow) |
|
| Pri motion ra |
+085 |
|
Sec motion ra |
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|
| Pri motion dec |
-047 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 26090 |
|
Constellation |
Taurus |
|
SAO |
76473 |
|
HIP |
19365 |
|
| Tycho2 |
1826-01301-1 |
|
Gaia DR2 |
164282846968545152 |
|
HD |
26090 |
|
ADS |
3017 |
|
| BD |
BD+28 624 |
|
Distance |
77.88 |
|
Distance ly |
254.04 |
|
ORBITAL ELEMENTS
| Period (P) | 60y | |
Periastron (T) | 1928y | |
Semi-major axis (a) | 0.28a | |
| Eccentricity (e) | 0.55 | |
Inclination (i) | 78.4° | |
Longitude of periastron (ω) | 18.3° | |
| Node (Ω) | 166.7° | |
Notes | n | |
Reference | Mlr1978a | |
| Equinox | | |
Last observation | 1976 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
340.5 |
0.278 |
| 2001 |
341.5 |
0.299 |
| 2002 |
342.3 |
0.319 |
| 2003 |
343.0 |
0.336 |
| 2004 |
343.7 |
0.352 |
| 2005 |
344.3 |
0.366 |
| 2006 |
344.9 |
0.378 |
| 2007 |
345.4 |
0.388 |
| 2008 |
345.9 |
0.397 |
| 2009 |
346.4 |
0.405 |
| 2010 |
346.9 |
0.411 |
| 2011 |
347.4 |
0.416 |
| 2012 |
347.8 |
0.419 |
| 2013 |
348.3 |
0.421 |
| 2014 |
348.7 |
0.422 |
| 2015 |
349.1 |
0.422 |
| 2016 |
349.6 |
0.420 |
| 2017 |
350.0 |
0.417 |
| 2018 |
350.5 |
0.413 |
| 2019 |
351.0 |
0.408 |
| 2020 |
351.5 |
0.401 |
| 2021 |
352.0 |
0.393 |
| 2022 |
352.5 |
0.385 |
| 2023 |
353.0 |
0.375 |
| 2024 |
353.6 |
0.363 |
| 2025 |
354.2 |
0.351 |
| 2026 |
354.9 |
0.338 |
| 2027 |
355.6 |
0.323 |
| 2028 |
356.4 |
0.308 |
| 2029 |
357.3 |
0.291 |
| 2030 |
358.3 |
0.273 |
|
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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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