04142-4608 RST 2338 (HD 27019)
04h 14m 09.55s -46° 07' 56.0" P.A. 313.00 sep 0.1 mag 8.48,7.19 Sp F9+G7 dist. 45.13 pc (147.21 l.y.)
| Coord 2000 |
04142-4608 |
|
Discov num |
RST2338 |
|
Comp |
|
|
Coord arcsec 2000 |
04 14 09.55 -46 07 56.0 |
|
| Date first |
1934 |
|
Date last |
2020 |
|
Obs |
49 |
|
| Pa first |
104 |
|
Pa last |
312.8 |
|
P.A. Now (θ) |
247.6° |
|
| Sep first |
0.2 |
|
Sep last |
0.067 |
|
Sep. Now (ρ) |
0.174" |
|
| Mag pri |
8.48 |
|
Mag sec |
7.19 |
|
delta mag (ΔM) |
1.29 |
|
Spectral class |
F9+G7 (yellow-white/yellow) |
|
| Pri motion ra |
+165 |
|
Sec motion ra |
|
|
| Pri motion dec |
-104 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 27019 |
|
Constellation |
Horologium |
|
SAO |
216711 |
|
HIP |
19758 |
|
| Tycho2 |
8068-01630-1 |
|
Gaia DR2 |
4837303163043957248 |
|
HD |
27019 |
|
GC |
5126 |
|
| CD |
CD-46 1347 |
|
CP |
CP-46 409 |
|
Distance |
45.13 |
|
Distance ly |
147.21 |
|
ORBITAL ELEMENTS SOLUTION #1
| Period (P) | 36.33y | ± 0.15 |
Periastron (T) | 1993.01y | ± 10 |
Semi-major axis (a) | 0.296a | ± 0.005 |
| Eccentricity (e) | 0.011 | ± 0.012 |
Inclination (i) | 55.6° | ± 3.5 |
Longitude of periastron (ω) | 166° | ± 12 |
| Node (Ω) | 136.9° | ± 5 |
Notes | n | |
Reference | Doc2016i | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
357.3 |
0.214 |
| 2001 |
9.2 |
0.193 |
| 2002 |
23.6 |
0.177 |
| 2003 |
40.3 |
0.168 |
| 2004 |
57.6 |
0.170 |
| 2005 |
73.7 |
0.181 |
| 2006 |
87.3 |
0.199 |
| 2007 |
98.5 |
0.221 |
| 2008 |
107.6 |
0.243 |
| 2009 |
115.2 |
0.263 |
| 2010 |
121.9 |
0.280 |
| 2011 |
127.9 |
0.292 |
| 2012 |
133.5 |
0.298 |
| 2013 |
139.0 |
0.299 |
| 2014 |
144.6 |
0.293 |
| 2015 |
150.5 |
0.282 |
| 2016 |
157.0 |
0.267 |
| 2017 |
164.4 |
0.247 |
| 2018 |
173.2 |
0.225 |
| 2019 |
184.0 |
0.203 |
| 2020 |
197.3 |
0.183 |
| 2021 |
213.1 |
0.170 |
| 2022 |
230.5 |
0.167 |
| 2023 |
247.6 |
0.174 |
| 2024 |
262.6 |
0.190 |
| 2025 |
274.9 |
0.210 |
| 2026 |
285.0 |
0.232 |
| 2027 |
293.3 |
0.253 |
| 2028 |
300.5 |
0.271 |
| 2029 |
306.8 |
0.284 |
| 2030 |
312.8 |
0.291 |
|
|
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 |
|
ORBITAL ELEMENTS SOLUTION #2
| Period (P) | 18.145y | ± 0.05 |
Periastron (T) | 2002.71y | ± 0.08 |
Semi-major axis (a) | 0.1941a | ± 0.0021 |
| Eccentricity (e) | 0.631 | ± 0.012 |
Inclination (i) | 30.6° | ± 1.4 |
Longitude of periastron (ω) | 138.9° | ± 6.5 |
| Node (Ω) | 169.1° | ± 5.8 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
177.6 |
0.193 |
| 2001 |
195.5 |
0.142 |
| 2002 |
238.9 |
0.082 |
| 2003 |
340.8 |
0.076 |
| 2004 |
39.4 |
0.113 |
| 2005 |
68.5 |
0.152 |
| 2006 |
86.0 |
0.187 |
| 2007 |
98.1 |
0.218 |
| 2008 |
107.5 |
0.245 |
| 2009 |
115.1 |
0.266 |
| 2010 |
121.7 |
0.282 |
| 2011 |
127.7 |
0.293 |
| 2012 |
133.4 |
0.299 |
| 2013 |
139.0 |
0.300 |
| 2014 |
144.6 |
0.294 |
| 2015 |
150.6 |
0.282 |
| 2016 |
157.3 |
0.264 |
| 2017 |
165.2 |
0.237 |
| 2018 |
175.7 |
0.200 |
| 2019 |
192.2 |
0.150 |
| 2020 |
229.0 |
0.090 |
| 2021 |
327.3 |
0.071 |
| 2022 |
33.5 |
0.108 |
| 2023 |
65.2 |
0.146 |
| 2024 |
83.9 |
0.182 |
| 2025 |
96.6 |
0.214 |
| 2026 |
106.2 |
0.241 |
| 2027 |
114.1 |
0.263 |
| 2028 |
120.8 |
0.280 |
| 2029 |
126.9 |
0.292 |
| 2030 |
132.6 |
0.299 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
