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 |
|
Discov num |
A 2901 |
|
Comp |
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|
Coord arcsec 2000 |
01 01 30.15 +69 21 30.7 |
|
| Date first |
1917 |
|
Date last |
2018 |
|
Obs |
53 |
|
| Pa first |
10 |
|
Pa last |
63.6 |
|
P.A. Now (θ) |
63.6° |
|
| Sep first |
0.2 |
|
Sep last |
0.438 |
|
Sep. Now (ρ) |
0.438" |
|
| Mag pri |
7.12 |
|
Mag sec |
7.84 |
|
delta mag (ΔM) |
0.72 |
|
Spectral class |
B9 (blue-white) |
|
| Pri motion ra |
-007 |
|
Sec motion ra |
-007 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 5839 |
|
Constellation |
Cassiopeia |
|
SAO |
11526 |
|
HIP |
4789 |
|
| Tycho2 |
4296-00103-1 |
|
HD |
5839 |
|
GC |
1212 |
|
ADS |
836 |
|
| BD |
BD+68 64 |
|
Distance |
273.97 |
|
Distance ly |
893.69 |
|
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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