08554+7048 STF 1280 AB (HD 75632)
08h 55m 24.82s +70° 47' 39.2" P.A. 359.00 sep 3.8 mag 8.81,9.10 Sp M1V+M1V
Coord 2000 |
08554+7048 |
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Discov num |
STF1280 |
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Comp |
AB |
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Coord arcsec 2000 |
08 55 24.82 +70 47 39.2 |
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Date first |
1823 |
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Date last |
2022 |
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Obs |
261 |
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Pa first |
31 |
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Pa last |
358.8 |
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P.A. Now (θ) |
359.1° |
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Sep first |
8.8 |
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Sep last |
3.77 |
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Sep. Now (ρ) |
3.878" |
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Mag pri |
8.81 |
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Mag sec |
9.10 |
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delta mag (ΔM) |
0.29 |
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Spectral class |
M1V+M1V (red/red) |
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Pri motion ra |
-133 |
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Sec motion ra |
-135 |
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Pri motion dec |
-031 |
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Sec motion dec |
-042 |
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Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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rPM=0.079 (< 0.3, Physical double)
This double is physical.
08554+7048 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 75632 |
6682 |
08 55 25 +70 47 39 |
STF 1280 AB |
2022 |
261 |
359 |
3.8 |
8.81 |
9.10 |
0.29 |
Y |
<=== |
Show |
|
6682 |
08 55 25 +70 47 39 |
STF 1280 AC |
2015 |
5 |
88 |
398.4 |
8.81 |
12.40 |
3.59 |
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Show |
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08 55 25 +70 47 39 |
STF 1280 BC |
2015 |
5 |
88 |
398.5 |
9.10 |
12.40 |
3.30 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 75632 |
|
Constellation |
Ursa Major |
|
SAO |
6682 |
|
HIP |
43820 |
|
Tycho2 |
4378-02162-1 |
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HD |
75632 |
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GC |
12268 |
|
ADS |
7067 |
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ORBITAL ELEMENTS
Period (P) | 688.512y | ± 75.5535 |
Periastron (T) | 1994.3455y | ± 0.0642 |
Semi-major axis (a) | 7.18257a | ± 0.53293 |
Eccentricity (e) | 0.89905 | ± 0.00827 |
Inclination (i) | 60.483° | ± 0.378 |
Longitude of periastron (ω) | 221.491° | ± 0.389 |
Node (Ω) | 0.372° | ± 0.261 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
325.8 |
0.890 |
2001 |
331.9 |
1.067 |
2002 |
336.3 |
1.240 |
2003 |
339.6 |
1.409 |
2004 |
342.3 |
1.572 |
2005 |
344.4 |
1.728 |
2006 |
346.2 |
1.880 |
2007 |
347.7 |
2.026 |
2008 |
349.1 |
2.167 |
2009 |
350.2 |
2.304 |
2010 |
351.3 |
2.437 |
2011 |
352.2 |
2.565 |
2012 |
353.0 |
2.690 |
2013 |
353.8 |
2.812 |
2014 |
354.5 |
2.930 |
2015 |
355.2 |
3.046 |
2016 |
355.8 |
3.158 |
2017 |
356.3 |
3.268 |
2018 |
356.9 |
3.375 |
2019 |
357.3 |
3.480 |
2020 |
357.8 |
3.583 |
2021 |
358.3 |
3.683 |
2022 |
358.7 |
3.782 |
2023 |
359.1 |
3.878 |
2024 |
359.4 |
3.973 |
2025 |
359.8 |
4.066 |
2026 |
0.1 |
4.157 |
2027 |
0.5 |
4.246 |
2028 |
0.8 |
4.334 |
2029 |
1.1 |
4.420 |
2030 |
1.4 |
4.505 |
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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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