04268+5539 STF 531 (HD 27856)
04h 26m 46.23s +55° 38' 37.6" P.A. 325.00 sep 1.0 mag 7.69,8.76 Sp F4IV dist. 158.73 pc (517.78 l.y.)
Coord 2000 |
04268+5539 |
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Discov num |
STF 531 |
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Comp |
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Coord arcsec 2000 |
04 26 46.23 +55 38 37.6 |
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Date first |
1830 |
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Date last |
2019 |
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Obs |
51 |
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Pa first |
292 |
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Pa last |
325.3 |
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P.A. Now (θ) |
325.3° |
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Sep first |
0.8 |
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Sep last |
0.96 |
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Sep. Now (ρ) |
0.96" |
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Mag pri |
7.69 |
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Mag sec |
8.76 |
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delta mag (ΔM) |
1.07 |
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Spectral class |
F4IV (yellow-white) |
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Pri motion ra |
-012 |
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Sec motion ra |
-012 |
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Pri motion dec |
+003 |
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Sec motion dec |
+003 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 27856 |
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Constellation |
Camelopardalis |
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SAO |
24614 |
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HIP |
20748 |
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Tycho2 |
3736-00518-1 |
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Gaia DR2 |
277328722660925824 |
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HD |
27856 |
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GC |
5355 |
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ADS |
3207 |
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BD |
BD+55 881 |
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Distance |
158.73 |
|
Distance ly |
517.78 |
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ORBITAL ELEMENTS
Period (P) | 1107.5665y | ± 588.143 |
Periastron (T) | 1781.2947y | ± 83.3767 |
Semi-major axis (a) | 1.63387a | ± 0.80244 |
Eccentricity (e) | 0.64644 | ± 0.28814 |
Inclination (i) | 74.344° | ± 8.228 |
Longitude of periastron (ω) | 101.967° | ± 27.691 |
Node (Ω) | 112.911° | ± 19.567 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
321.7 |
0.973 |
2001 |
321.9 |
0.971 |
2002 |
322.1 |
0.970 |
2003 |
322.3 |
0.968 |
2004 |
322.5 |
0.966 |
2005 |
322.7 |
0.964 |
2006 |
322.8 |
0.962 |
2007 |
323.0 |
0.960 |
2008 |
323.2 |
0.958 |
2009 |
323.4 |
0.956 |
2010 |
323.6 |
0.954 |
2011 |
323.8 |
0.952 |
2012 |
324.0 |
0.950 |
2013 |
324.2 |
0.948 |
2014 |
324.4 |
0.946 |
2015 |
324.6 |
0.944 |
2016 |
324.8 |
0.942 |
2017 |
325.0 |
0.940 |
2018 |
325.2 |
0.938 |
2019 |
325.4 |
0.936 |
2020 |
325.6 |
0.934 |
2021 |
325.8 |
0.932 |
2022 |
326.0 |
0.930 |
2023 |
326.3 |
0.928 |
2024 |
326.5 |
0.926 |
2025 |
326.7 |
0.923 |
2026 |
326.9 |
0.921 |
2027 |
327.1 |
0.919 |
2028 |
327.3 |
0.917 |
2029 |
327.5 |
0.915 |
2030 |
327.7 |
0.913 |
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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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