01388-1758 LDS 838 (UV Cet)
01h 39m 01.54s -17° 57' 01.8" P.A. 324.00 sep 1.4 mag 12.70,13.20 Sp M5.5V+M6V
| Coord 2000 |
01388-1758 |
|
Discov num |
LDS 838 |
|
Comp |
|
|
Coord arcsec 2000 |
01 39 01.54 -17 57 01.8 |
|
| Date first |
1935 |
|
Date last |
2022 |
|
Obs |
125 |
|
| Pa first |
118 |
|
Pa last |
324.4 |
|
P.A. Now (θ) |
150.9° (calc) |
|
| Sep first |
2.0 |
|
Sep last |
1.436 |
|
Sep. Now (ρ) |
1.02" (calc) |
|
| Mag pri |
12.70 |
|
Mag sec |
13.20 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
M5.5V+M6V (red/red) |
|
| Pri motion ra |
+339 |
|
Sec motion ra |
+330 |
|
| Pri motion dec |
+056 |
|
Sec motion dec |
+056 |
|
| Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
|
rPM=0.026 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
UV Cet |
|
Constellation |
Cetus |
|
ORBITAL ELEMENTS
| Period (P) | 26.351y | ± 0.049 |
Periastron (T) | 2024.855y | ± 0.034 |
Semi-major axis (a) | 2.022a | ± 0.0042 |
| Eccentricity (e) | 0.6143 | ± 0.0034 |
Inclination (i) | 128.78° | ± 0.52 |
Longitude of periastron (ω) | 284.27° | ± 0.81 |
| Node (Ω) | 146.22° | ± 0.43 |
Notes | n | |
Reference | Msn2023 | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
142.7 |
1.149 |
| 2001 |
125.8 |
1.398 |
| 2002 |
113.1 |
1.541 |
| 2003 |
102.2 |
1.634 |
| 2004 |
92.3 |
1.703 |
| 2005 |
83.1 |
1.761 |
| 2006 |
74.5 |
1.817 |
| 2007 |
66.3 |
1.872 |
| 2008 |
58.7 |
1.929 |
| 2009 |
51.5 |
1.987 |
| 2010 |
44.7 |
2.045 |
| 2011 |
38.3 |
2.102 |
| 2012 |
32.2 |
2.155 |
| 2013 |
26.4 |
2.202 |
| 2014 |
20.8 |
2.240 |
| 2015 |
15.4 |
2.267 |
| 2016 |
10.0 |
2.278 |
| 2017 |
4.7 |
2.269 |
| 2018 |
359.3 |
2.235 |
| 2019 |
353.6 |
2.168 |
| 2020 |
347.4 |
2.058 |
| 2021 |
340.4 |
1.890 |
| 2022 |
331.5 |
1.639 |
| 2023 |
318.5 |
1.269 |
| 2024 |
290.0 |
0.749 |
| 2025 |
199.9 |
0.554 |
| 2026 |
150.9 |
1.020 |
| 2027 |
131.0 |
1.327 |
| 2028 |
117.3 |
1.499 |
| 2029 |
105.9 |
1.605 |
| 2030 |
95.7 |
1.680 |
| 2031 |
86.2 |
1.741 |
| 2032 |
77.4 |
1.797 |
| 2033 |
69.1 |
1.853 |
| 2034 |
61.3 |
1.909 |
| 2035 |
54.0 |
1.967 |
| 2036 |
47.1 |
2.025 |
| 2037 |
40.5 |
2.082 |
| 2038 |
34.3 |
2.137 |
| 2039 |
28.4 |
2.186 |
| 2040 |
22.7 |
2.228 |
| 2041 |
17.3 |
2.259 |
| 2042 |
11.9 |
2.276 |
| 2043 |
6.6 |
2.275 |
| 2044 |
1.2 |
2.250 |
| 2045 |
355.6 |
2.196 |
| 2046 |
349.7 |
2.102 |
| 2047 |
343.0 |
1.957 |
| 2048 |
334.9 |
1.739 |
| 2049 |
323.9 |
1.416 |
| 2050 |
303.7 |
0.945 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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