00373-2446 BU 395 (HD 3443)
00h 37m 20.68s -24° 46' 02.1" P.A. 198.00 sep 0.1 mag 6.60,6.20 Sp G8V dist. 15.4 pc (50.23 l.y.)
| Coord 2000 |
00373-2446 |
|
Discov num |
BU 395 |
|
Comp |
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Coord arcsec 2000 |
00 37 20.68 -24 46 02.1 |
|
| Date first |
1875 |
|
Date last |
2021 |
|
Obs |
193 |
|
| Pa first |
315 |
|
Pa last |
197.6 |
|
P.A. Now (θ) |
273° |
|
| Sep first |
0.5 |
|
Sep last |
0.109 |
|
Sep. Now (ρ) |
0.28" |
|
| Mag pri |
6.60 |
|
Mag sec |
6.20 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
G8V (yellow) |
|
| Pri motion ra |
+140 |
|
Sec motion ra |
+140 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 3443 |
|
Constellation |
Cetus |
|
SAO |
166418 |
|
HIP |
2941 |
|
| Tycho2 |
6421-01924-1 |
|
HD |
3443 |
|
HR |
159 |
|
GC |
741 |
|
| ADS |
520 |
|
GL |
Gl 25A |
|
CD |
CD-25 225 |
|
CP |
CP-25 64 |
|
| Distance |
15.4 |
|
Distance ly |
50.23 |
|
ORBITAL ELEMENTS
| Period (P) | 25.02y | |
Periastron (T) | 1998.78y | |
Semi-major axis (a) | 0.675a | |
| Eccentricity (e) | 0.218 | |
Inclination (i) | 78.6° | |
Longitude of periastron (ω) | 318.1° | |
| Node (Ω) | 291.98° | |
Notes | n | |
Reference | Hrt2010a | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
289.1 |
0.523 |
| 2001 |
293.4 |
0.558 |
| 2002 |
297.5 |
0.536 |
| 2003 |
302.5 |
0.468 |
| 2004 |
309.7 |
0.369 |
| 2005 |
323.1 |
0.256 |
| 2006 |
354.7 |
0.163 |
| 2007 |
47.9 |
0.168 |
| 2008 |
77.5 |
0.265 |
| 2009 |
90.0 |
0.383 |
| 2010 |
96.7 |
0.496 |
| 2011 |
100.9 |
0.596 |
| 2012 |
104.1 |
0.677 |
| 2013 |
106.6 |
0.737 |
| 2014 |
108.8 |
0.771 |
| 2015 |
110.9 |
0.776 |
| 2016 |
113.0 |
0.751 |
| 2017 |
115.4 |
0.694 |
| 2018 |
118.4 |
0.602 |
| 2019 |
122.8 |
0.478 |
| 2020 |
130.8 |
0.326 |
| 2021 |
154.6 |
0.165 |
| 2022 |
237.3 |
0.132 |
| 2023 |
273.0 |
0.280 |
| 2024 |
283.4 |
0.425 |
| 2025 |
289.0 |
0.522 |
| 2026 |
293.3 |
0.558 |
| 2027 |
297.4 |
0.537 |
| 2028 |
302.4 |
0.470 |
| 2029 |
309.6 |
0.371 |
| 2030 |
322.7 |
0.258 |
| 2031 |
353.8 |
0.164 |
| 2032 |
47.0 |
0.166 |
| 2033 |
77.2 |
0.263 |
| 2034 |
89.9 |
0.380 |
| 2035 |
96.6 |
0.494 |
| 2036 |
100.9 |
0.594 |
| 2037 |
104.0 |
0.676 |
| 2038 |
106.5 |
0.736 |
| 2039 |
108.7 |
0.770 |
| 2040 |
110.8 |
0.776 |
| 2041 |
113.0 |
0.752 |
| 2042 |
115.4 |
0.695 |
| 2043 |
118.4 |
0.605 |
| 2044 |
122.7 |
0.481 |
| 2045 |
130.6 |
0.329 |
| 2046 |
153.7 |
0.168 |
| 2047 |
235.8 |
0.130 |
| 2048 |
272.6 |
0.277 |
| 2049 |
283.3 |
0.422 |
| 2050 |
288.9 |
0.520 |
|
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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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