08254+3723 HU 856 (HD 70803)
08h 25m 23.73s +37° 23' 18.7" P.A. 308.00 sep 0.3 mag 8.72,8.86 Sp F5 dist. 178.25 pc (581.45 l.y.)
| Coord 2000 |
08254+3723 |
|
Discov num |
HU 856 |
|
Comp |
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Coord arcsec 2000 |
08 25 23.73 +37 23 18.7 |
|
| Date first |
1904 |
|
Date last |
2008 |
|
Obs |
38 |
|
| Pa first |
265 |
|
Pa last |
307.9 |
|
P.A. Now (θ) |
352.2° |
|
| Sep first |
0.3 |
|
Sep last |
0.288 |
|
Sep. Now (ρ) |
0.144" |
|
| Mag pri |
8.72 |
|
Mag sec |
8.86 |
|
delta mag (ΔM) |
0.14 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
-041 |
|
Sec motion ra |
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| Pri motion dec |
-035 |
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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 70803 |
|
Constellation |
Lynx |
|
SAO |
60797 |
|
HIP |
41286 |
|
| Tycho2 |
2489-01940-1 |
|
Gaia DR2 |
905006886951617024 |
|
HD |
70803 |
|
ADS |
6796 |
|
| BD |
BD+37 1856 |
|
Distance |
178.25 |
|
Distance ly |
581.45 |
|
ORBITAL ELEMENTS
| Period (P) | 80.35y | |
Periastron (T) | 1949.9y | |
Semi-major axis (a) | 0.201a | |
| Eccentricity (e) | 0.589 | |
Inclination (i) | 36.2° | |
Longitude of periastron (ω) | 263.6° | |
| Node (Ω) | 185.5° | |
Notes | n | |
Reference | USN2007a | |
| Equinox | 2000 | |
Last observation | 2004 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
285.7 |
0.248 |
| 2001 |
287.7 |
0.246 |
| 2002 |
289.6 |
0.244 |
| 2003 |
291.6 |
0.241 |
| 2004 |
293.7 |
0.239 |
| 2005 |
295.8 |
0.236 |
| 2006 |
297.9 |
0.234 |
| 2007 |
300.1 |
0.231 |
| 2008 |
302.3 |
0.228 |
| 2009 |
304.7 |
0.224 |
| 2010 |
307.0 |
0.221 |
| 2011 |
309.5 |
0.217 |
| 2012 |
312.1 |
0.213 |
| 2013 |
314.7 |
0.209 |
| 2014 |
317.5 |
0.204 |
| 2015 |
320.4 |
0.199 |
| 2016 |
323.4 |
0.194 |
| 2017 |
326.7 |
0.188 |
| 2018 |
330.1 |
0.182 |
| 2019 |
333.8 |
0.176 |
| 2020 |
337.7 |
0.169 |
| 2021 |
342.1 |
0.161 |
| 2022 |
346.8 |
0.153 |
| 2023 |
352.2 |
0.144 |
| 2024 |
358.3 |
0.134 |
| 2025 |
5.4 |
0.123 |
| 2026 |
14.0 |
0.111 |
| 2027 |
24.7 |
0.099 |
| 2028 |
38.6 |
0.086 |
| 2029 |
57.2 |
0.074 |
| 2030 |
81.0 |
0.068 |
|
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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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