00160-1637 BWL 2
00h 15m 58.08s -16° 36' 57.9" P.A. 79.00 sep 0.1 mag 8.90,9.00 Sp M4.0
| Coord 2000 |
00160-1637 |
|
Discov num |
BWL 2 |
|
Comp |
|
|
Coord arcsec 2000 |
00 15 58.08 -16 36 57.9 |
|
| Date first |
2011 |
|
Date last |
2023 |
|
Obs |
15 |
|
| Pa first |
90 |
|
Pa last |
78.9 |
|
P.A. Now (θ) |
261.4° |
|
| Sep first |
0.1 |
|
Sep last |
0.097 |
|
Sep. Now (ρ) |
0.101" |
|
| Mag pri |
8.90 |
|
Mag sec |
9.00 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
M4.0 (red) |
|
| Pri motion ra |
-110 |
|
Sec motion ra |
|
|
| Pri motion dec |
+035 |
|
Sec motion dec |
|
|
| Notes |
O
K
(Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cetus |
|
Gaia DR2 |
2368212771939556992 |
|
ORBITAL ELEMENTS
| Period (P) | 4.187y | ± 0.039 |
Periastron (T) | 2021.145y | ± 0.057 |
Semi-major axis (a) | 108m | ± 7.2 |
| Eccentricity (e) | 0.433 | ± 0.09 |
Inclination (i) | 63.63° | ± 2.11 |
Longitude of periastron (ω) | 98.03° | ± 4.82 |
| Node (Ω) | 111.81° | ± 5.15 |
Notes | | |
Reference | TSN2022a | |
| Equinox | 2000 | |
Last observation | 2020 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
140.4 |
0.049 |
| 2001 |
309.8 |
0.094 |
| 2002 |
13.9 |
0.068 |
| 2003 |
80.2 |
0.098 |
| 2004 |
120.8 |
0.077 |
| 2005 |
301.1 |
0.092 |
| 2006 |
358.2 |
0.071 |
| 2007 |
71.7 |
0.090 |
| 2008 |
110.8 |
0.095 |
| 2009 |
291.4 |
0.082 |
| 2010 |
344.1 |
0.076 |
| 2011 |
61.7 |
0.083 |
| 2012 |
103.3 |
0.104 |
| 2013 |
276.8 |
0.061 |
| 2014 |
332.1 |
0.082 |
| 2015 |
49.6 |
0.075 |
| 2016 |
96.6 |
0.107 |
| 2017 |
238.2 |
0.032 |
| 2018 |
321.8 |
0.089 |
| 2019 |
35.3 |
0.070 |
| 2020 |
90.0 |
0.105 |
| 2021 |
154.5 |
0.038 |
| 2022 |
312.8 |
0.093 |
| 2023 |
19.5 |
0.068 |
| 2024 |
82.9 |
0.100 |
| 2025 |
125.8 |
0.068 |
| 2026 |
304.2 |
0.093 |
| 2027 |
3.5 |
0.069 |
| 2028 |
74.8 |
0.093 |
| 2029 |
113.8 |
0.090 |
| 2030 |
295.0 |
0.087 |
| 2031 |
348.8 |
0.074 |
| 2032 |
65.4 |
0.085 |
| 2033 |
105.8 |
0.102 |
| 2034 |
282.9 |
0.070 |
| 2035 |
336.0 |
0.080 |
| 2036 |
54.0 |
0.078 |
| 2037 |
98.9 |
0.107 |
| 2038 |
257.8 |
0.042 |
| 2039 |
325.2 |
0.087 |
| 2040 |
40.5 |
0.072 |
| 2041 |
92.3 |
0.106 |
| 2042 |
178.1 |
0.030 |
| 2043 |
315.8 |
0.092 |
| 2044 |
25.1 |
0.068 |
| 2045 |
85.4 |
0.102 |
| 2046 |
132.4 |
0.058 |
| 2047 |
307.2 |
0.094 |
| 2048 |
9.0 |
0.069 |
| 2049 |
77.8 |
0.096 |
| 2050 |
117.3 |
0.084 |
|
|
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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