07168+0059 A 2855 (HD 56361)
07h 16m 47.50s +00° 58' 46.3" P.A. 100.00 sep 0.3 mag 9.53,9.25 Sp K0 dist. 58.79 pc (191.77 l.y.)
| Coord 2000 |
07168+0059 |
|
Discov num |
A 2855 |
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Comp |
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Coord arcsec 2000 |
07 16 47.50 +00 58 46.3 |
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| Date first |
1914 |
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Date last |
2020 |
|
Obs |
50 |
|
| Pa first |
313 |
|
Pa last |
100 |
|
P.A. Now (θ) |
81.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.269 |
|
Sep. Now (ρ) |
0.277" |
|
| Mag pri |
9.53 |
|
Mag sec |
9.25 |
|
delta mag (ΔM) |
0.28 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
-024 |
|
Sec motion ra |
-024 |
|
| Pri motion dec |
+005 |
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Sec motion dec |
+005 |
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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 56361 |
|
Constellation |
Monoceros |
|
SAO |
115193 |
|
HIP |
35221 |
|
| Tycho2 |
0164-01217-1 |
|
HD |
56361 |
|
ADS |
5949 |
|
BD |
BD+01 1757 |
|
| Distance |
58.79 |
|
Distance ly |
191.77 |
|
ORBITAL ELEMENTS
| Period (P) | 64.44y | ± 0.45 |
Periastron (T) | 1958.36y | ± 0.69 |
Semi-major axis (a) | 0.349a | ± 0.003 |
| Eccentricity (e) | 0.178 | ± 0.01 |
Inclination (i) | 148.3° | ± 2.1 |
Longitude of periastron (ω) | 329.2° | ± 7 |
| Node (Ω) | 56.3° | ± 3.7 |
Notes | n | |
Reference | Msn2009 | |
| Equinox | 2000 | |
Last observation | 2006 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
229.7 |
0.392 |
| 2001 |
226.0 |
0.386 |
| 2002 |
222.1 |
0.380 |
| 2003 |
218.1 |
0.373 |
| 2004 |
213.9 |
0.365 |
| 2005 |
209.5 |
0.356 |
| 2006 |
204.9 |
0.346 |
| 2007 |
200.0 |
0.336 |
| 2008 |
194.8 |
0.326 |
| 2009 |
189.2 |
0.315 |
| 2010 |
183.3 |
0.305 |
| 2011 |
177.0 |
0.295 |
| 2012 |
170.2 |
0.285 |
| 2013 |
163.0 |
0.277 |
| 2014 |
155.3 |
0.270 |
| 2015 |
147.3 |
0.264 |
| 2016 |
139.0 |
0.260 |
| 2017 |
130.6 |
0.258 |
| 2018 |
122.0 |
0.258 |
| 2019 |
113.5 |
0.260 |
| 2020 |
105.2 |
0.263 |
| 2021 |
97.1 |
0.267 |
| 2022 |
89.3 |
0.272 |
| 2023 |
81.7 |
0.277 |
| 2024 |
74.4 |
0.282 |
| 2025 |
67.4 |
0.287 |
| 2026 |
60.6 |
0.291 |
| 2027 |
53.9 |
0.294 |
| 2028 |
47.4 |
0.297 |
| 2029 |
41.0 |
0.298 |
| 2030 |
34.6 |
0.300 |
|
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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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