03053-4059 HDS 391 (HD 19337)
03h 05m 18.24s -40° 59' 03.2" P.A. 51.00 sep 0.1 mag 7.91,9.58 Sp F5V dist. 80.91 pc (263.93 l.y.)
| Coord 2000 |
03053-4059 |
|
Discov num |
HDS 391 |
|
Comp |
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Coord arcsec 2000 |
03 05 18.24 -40 59 03.2 |
|
| Date first |
1991 |
|
Date last |
2020 |
|
Obs |
8 |
|
| Pa first |
303 |
|
Pa last |
51.2 |
|
P.A. Now (θ) |
51.2° |
|
| Sep first |
0.2 |
|
Sep last |
0.055 |
|
Sep. Now (ρ) |
0.055" |
|
| Mag pri |
7.91 |
|
Mag sec |
9.58 |
|
delta mag (ΔM) |
1.67 |
|
Spectral class |
F5V (yellow-white) |
|
| Pri motion ra |
+036 |
|
Sec motion ra |
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| Pri motion dec |
+005 |
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Sec motion dec |
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| Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 19337 |
|
Constellation |
Eridanus |
|
SAO |
216162 |
|
HIP |
14361 |
|
| Tycho2 |
7563-00636-1 |
|
Gaia DR2 |
4852007962834127104 |
|
HD |
19337 |
|
GC |
3709 |
|
| CD |
CD-41 893 |
|
CP |
CP-41 289 |
|
Distance |
80.91 |
|
Distance ly |
263.93 |
|
ORBITAL ELEMENTS
| Period (P) | 53.12y | |
Periastron (T) | 2036.18y | |
Semi-major axis (a) | 0.258a | |
| Eccentricity (e) | 0.5 | |
Inclination (i) | 80° | |
Longitude of periastron (ω) | 239.8° | |
| Node (Ω) | 303.7° | |
Notes | | |
Reference | Tok2017c | |
| Equinox | 2000 | |
Last observation | 2016 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
310.1 |
0.295 |
| 2001 |
310.9 |
0.291 |
| 2002 |
311.7 |
0.285 |
| 2003 |
312.6 |
0.278 |
| 2004 |
313.5 |
0.269 |
| 2005 |
314.5 |
0.260 |
| 2006 |
315.5 |
0.249 |
| 2007 |
316.6 |
0.238 |
| 2008 |
317.9 |
0.225 |
| 2009 |
319.3 |
0.212 |
| 2010 |
321.0 |
0.198 |
| 2011 |
322.8 |
0.183 |
| 2012 |
325.0 |
0.168 |
| 2013 |
327.7 |
0.152 |
| 2014 |
331.0 |
0.136 |
| 2015 |
335.1 |
0.120 |
| 2016 |
340.5 |
0.105 |
| 2017 |
347.7 |
0.090 |
| 2018 |
357.7 |
0.076 |
| 2019 |
11.3 |
0.066 |
| 2020 |
28.8 |
0.060 |
| 2021 |
48.1 |
0.060 |
| 2022 |
65.6 |
0.066 |
| 2023 |
79.2 |
0.076 |
| 2024 |
89.2 |
0.089 |
| 2025 |
96.5 |
0.104 |
| 2026 |
102.0 |
0.118 |
| 2027 |
106.3 |
0.132 |
| 2028 |
109.9 |
0.145 |
| 2029 |
112.9 |
0.156 |
| 2030 |
115.5 |
0.164 |
|
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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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