04395-4507 I 1489 (HD 29803)
04h 39m 31.59s -45° 07' 24.4" P.A. 259.00 sep 0.3 mag 9.45,10.23 Sp K1V dist. 43.33 pc (141.34 l.y.)
| Coord 2000 |
04395-4507 |
|
Discov num |
I 1489 |
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Comp |
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Coord arcsec 2000 |
04 39 31.59 -45 07 24.4 |
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| Date first |
1927 |
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Date last |
2018 |
|
Obs |
34 |
|
| Pa first |
263 |
|
Pa last |
259.3 |
|
P.A. Now (θ) |
259.3° |
|
| Sep first |
0.2 |
|
Sep last |
0.251 |
|
Sep. Now (ρ) |
0.251" |
|
| Mag pri |
9.45 |
|
Mag sec |
10.23 |
|
delta mag (ΔM) |
0.78 |
|
Spectral class |
K1V (yellow-orange) |
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| Pri motion ra |
-044 |
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Sec motion ra |
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| Pri motion dec |
-083 |
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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 29803 |
|
Constellation |
Caelum |
|
SAO |
216921 |
|
HIP |
21698 |
|
| Tycho2 |
8076-00259-1 |
|
Gaia DR2 |
4790456198103051520 |
|
HD |
29803 |
|
CD |
CD-45 1627 |
|
| CP |
CP-45 497 |
|
Distance |
43.33 |
|
Distance ly |
141.34 |
|
ORBITAL ELEMENTS
| Period (P) | 32.79y | |
Periastron (T) | 1997.79y | |
Semi-major axis (a) | 0.27a | |
| Eccentricity (e) | 0.181 | |
Inclination (i) | 84.1° | |
Longitude of periastron (ω) | 281.6° | |
| Node (Ω) | 83.1° | |
Notes | n | |
Reference | Doc2012a | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
77.5 |
0.166 |
| 2001 |
79.9 |
0.205 |
| 2002 |
81.6 |
0.234 |
| 2003 |
82.9 |
0.251 |
| 2004 |
84.2 |
0.256 |
| 2005 |
85.4 |
0.251 |
| 2006 |
86.8 |
0.237 |
| 2007 |
88.4 |
0.215 |
| 2008 |
90.4 |
0.187 |
| 2009 |
93.2 |
0.154 |
| 2010 |
97.7 |
0.117 |
| 2011 |
106.4 |
0.079 |
| 2012 |
130.4 |
0.044 |
| 2013 |
195.4 |
0.035 |
| 2014 |
233.3 |
0.065 |
| 2015 |
245.5 |
0.103 |
| 2016 |
251.1 |
0.141 |
| 2017 |
254.3 |
0.176 |
| 2018 |
256.5 |
0.207 |
| 2019 |
258.2 |
0.234 |
| 2020 |
259.5 |
0.255 |
| 2021 |
260.7 |
0.269 |
| 2022 |
261.8 |
0.275 |
| 2023 |
262.9 |
0.273 |
| 2024 |
264.0 |
0.261 |
| 2025 |
265.3 |
0.238 |
| 2026 |
266.9 |
0.206 |
| 2027 |
269.3 |
0.164 |
| 2028 |
273.7 |
0.113 |
| 2029 |
286.1 |
0.057 |
| 2030 |
14.2 |
0.024 |
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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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