00583+2124 BU 302 (HD 5641)
00h 58m 18.89s +21° 24' 16.2" P.A. 231.00 sep 0.3 mag 6.60,8.77 Sp A2V dist. 129.7 pc (423.08 l.y.)
| Coord 2000 |
00583+2124 |
|
Discov num |
BU 302 |
|
Comp |
|
|
Coord arcsec 2000 |
00 58 18.89 +21 24 16.2 |
|
| Date first |
1875 |
|
Date last |
2017 |
|
Obs |
127 |
|
| Pa first |
94 |
|
Pa last |
230.8 |
|
P.A. Now (θ) |
230.8° |
|
| Sep first |
0.7 |
|
Sep last |
0.3 |
|
Sep. Now (ρ) |
0.3" |
|
| Mag pri |
6.60 |
|
Mag sec |
8.77 |
|
delta mag (ΔM) |
2.17 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-013 |
|
Sec motion ra |
-013 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 5641 |
|
Constellation |
Pisces |
|
SAO |
74402 |
|
HIP |
4558 |
|
| Tycho2 |
1195-01109-1 |
|
Gaia DR2 |
2789889882217773568 |
|
HD |
5641 |
|
HR |
277 |
|
| GC |
1160 |
|
ADS |
805 |
|
BD |
BD+20 131 |
|
Distance |
129.7 |
|
| Distance ly |
423.08 |
|
ORBITAL ELEMENTS
| Period (P) | 331.97y | ± 3.33 |
Periastron (T) | 2017.54y | ± 2.99 |
Semi-major axis (a) | 0.651a | ± 0.046 |
| Eccentricity (e) | 0.665 | ± 0.028 |
Inclination (i) | 48.1° | ± 1.2 |
Longitude of periastron (ω) | 252.2° | ± 3.7 |
| Node (Ω) | 17.2° | ± 2.2 |
Notes | | |
Reference | Cve2006e | |
| Equinox | 2000 | |
Last observation | 1999 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
186.5 |
0.347 |
| 2001 |
188.5 |
0.339 |
| 2002 |
190.5 |
0.330 |
| 2003 |
192.7 |
0.321 |
| 2004 |
195.0 |
0.311 |
| 2005 |
197.5 |
0.301 |
| 2006 |
200.1 |
0.290 |
| 2007 |
202.9 |
0.279 |
| 2008 |
206.0 |
0.267 |
| 2009 |
209.4 |
0.255 |
| 2010 |
213.1 |
0.242 |
| 2011 |
217.2 |
0.229 |
| 2012 |
221.9 |
0.216 |
| 2013 |
227.1 |
0.202 |
| 2014 |
233.1 |
0.190 |
| 2015 |
239.9 |
0.177 |
| 2016 |
247.7 |
0.167 |
| 2017 |
256.4 |
0.158 |
| 2018 |
266.1 |
0.151 |
| 2019 |
276.3 |
0.148 |
| 2020 |
286.8 |
0.148 |
| 2021 |
297.0 |
0.152 |
| 2022 |
306.5 |
0.159 |
| 2023 |
315.0 |
0.169 |
| 2024 |
322.5 |
0.181 |
| 2025 |
329.0 |
0.194 |
| 2026 |
334.7 |
0.208 |
| 2027 |
339.6 |
0.223 |
| 2028 |
343.9 |
0.239 |
| 2029 |
347.7 |
0.254 |
| 2030 |
351.1 |
0.269 |
|
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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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