01015+6922 A 2901 (HD 5839)
01h 01m 30.15s +69° 21' 30.7" P.A. 64.00 sep 0.4 mag 7.12,7.84 Sp B9 dist. 273.97 pc (893.69 l.y.)
Coord 2000 |
01015+6922 |
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Discov num |
A 2901 |
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Comp |
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Coord arcsec 2000 |
01 01 30.15 +69 21 30.7 |
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Date first |
1917 |
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Date last |
2018 |
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Obs |
53 |
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Pa first |
10 |
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Pa last |
63.6 |
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P.A. Now (θ) |
63.6° |
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Sep first |
0.2 |
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Sep last |
0.438 |
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Sep. Now (ρ) |
0.438" |
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Mag pri |
7.12 |
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Mag sec |
7.84 |
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delta mag (ΔM) |
0.72 |
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Spectral class |
B9 (blue-white) |
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Pri motion ra |
-007 |
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Sec motion ra |
-007 |
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Pri motion dec |
-003 |
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Sec motion dec |
-003 |
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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 5839 |
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Constellation |
Cassiopeia |
|
SAO |
11526 |
|
HIP |
4789 |
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Tycho2 |
4296-00103-1 |
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HD |
5839 |
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GC |
1212 |
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ADS |
836 |
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BD |
BD+68 64 |
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Distance |
273.97 |
|
Distance ly |
893.69 |
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ORBITAL ELEMENTS
Period (P) | 1517.34y | ± 60.15 |
Periastron (T) | 1950.56y | ± 61.32 |
Semi-major axis (a) | 0.99a | ± 0.08 |
Eccentricity (e) | 0.621 | ± 0.033 |
Inclination (i) | 69.3° | ± 0.9 |
Longitude of periastron (ω) | 330.2° | ± 0.9 |
Node (Ω) | 48.4° | ± 0.7 |
Notes | n | |
Reference | Nov2007d | |
Equinox | 2000 | |
Last observation | 2001 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
58.4 |
0.411 |
2001 |
58.7 |
0.411 |
2002 |
59.1 |
0.410 |
2003 |
59.5 |
0.410 |
2004 |
59.9 |
0.410 |
2005 |
60.3 |
0.409 |
2006 |
60.7 |
0.409 |
2007 |
61.0 |
0.408 |
2008 |
61.4 |
0.407 |
2009 |
61.8 |
0.407 |
2010 |
62.2 |
0.406 |
2011 |
62.6 |
0.405 |
2012 |
63.0 |
0.405 |
2013 |
63.4 |
0.404 |
2014 |
63.8 |
0.403 |
2015 |
64.2 |
0.402 |
2016 |
64.6 |
0.401 |
2017 |
65.0 |
0.400 |
2018 |
65.4 |
0.399 |
2019 |
65.8 |
0.398 |
2020 |
66.2 |
0.397 |
2021 |
66.6 |
0.396 |
2022 |
67.0 |
0.395 |
2023 |
67.4 |
0.394 |
2024 |
67.9 |
0.392 |
2025 |
68.3 |
0.391 |
2026 |
68.7 |
0.390 |
2027 |
69.1 |
0.389 |
2028 |
69.5 |
0.387 |
2029 |
70.0 |
0.386 |
2030 |
70.4 |
0.385 |
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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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