01559+0151 STF 186 (NSV667)
01h 55m 53.80s +01° 50' 59.6" P.A. 77.00 sep 0.6 mag 6.79,6.84 Sp G0V+F7V dist. 39.89 pc (130.12 l.y.)
| Coord 2000 |
01559+0151 |
|
Discov num |
STF 186 |
|
Comp |
|
|
Coord arcsec 2000 |
01 55 53.80 +01 50 59.6 |
|
| Date first |
1825 |
|
Date last |
2021 |
|
Obs |
456 |
|
| Pa first |
240 |
|
Pa last |
76.9 |
|
P.A. Now (θ) |
78.2° |
|
| Sep first |
1.4 |
|
Sep last |
0.6 |
|
Sep. Now (ρ) |
0.575" |
|
| Mag pri |
6.79 |
|
Mag sec |
6.84 |
|
delta mag (ΔM) |
0.05 |
|
Spectral class |
G0V+F7V (yellow/yellow-white) |
|
| Pri motion ra |
+164 |
|
Sec motion ra |
+164 |
|
| Pri motion dec |
+189 |
|
Sec motion dec |
+189 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV667 |
|
Constellation |
Cetus |
|
SAO |
110235 |
|
HIP |
8998 |
|
| Tycho2 |
0030-01344-1 |
|
Gaia DR2 |
2511415438379352192 |
|
HD |
11803 |
|
HR |
560 |
|
| GC |
2326 |
|
ADS |
1538 |
|
BD |
BD+01 347 |
|
Distance |
39.89 |
|
| Distance ly |
130.12 |
|
ORBITAL ELEMENTS
| Period (P) | 167.4y | ± 3.2 |
Periastron (T) | 1893.6y | ± 3.2 |
Semi-major axis (a) | 1.043a | ± 0.037 |
| Eccentricity (e) | 0.721 | ± 0.061 |
Inclination (i) | 74.4° | ± 2.6 |
Longitude of periastron (ω) | 44° | ± 3.7 |
| Node (Ω) | 220° | ± 0.7 |
Notes | n | |
Reference | Msn2021c | |
| Equinox | | |
Last observation | 2021 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
61.6 |
1.028 |
| 2001 |
62.0 |
1.011 |
| 2002 |
62.5 |
0.993 |
| 2003 |
62.9 |
0.976 |
| 2004 |
63.4 |
0.958 |
| 2005 |
63.9 |
0.940 |
| 2006 |
64.4 |
0.921 |
| 2007 |
64.9 |
0.903 |
| 2008 |
65.4 |
0.884 |
| 2009 |
66.0 |
0.865 |
| 2010 |
66.6 |
0.845 |
| 2011 |
67.2 |
0.826 |
| 2012 |
67.9 |
0.806 |
| 2013 |
68.6 |
0.786 |
| 2014 |
69.3 |
0.765 |
| 2015 |
70.1 |
0.745 |
| 2016 |
70.9 |
0.724 |
| 2017 |
71.7 |
0.703 |
| 2018 |
72.6 |
0.682 |
| 2019 |
73.6 |
0.661 |
| 2020 |
74.6 |
0.640 |
| 2021 |
75.7 |
0.618 |
| 2022 |
76.9 |
0.597 |
| 2023 |
78.2 |
0.575 |
| 2024 |
79.6 |
0.554 |
| 2025 |
81.0 |
0.532 |
| 2026 |
82.6 |
0.510 |
| 2027 |
84.4 |
0.489 |
| 2028 |
86.3 |
0.468 |
| 2029 |
88.4 |
0.447 |
| 2030 |
90.7 |
0.426 |
| 2031 |
93.2 |
0.405 |
| 2032 |
96.0 |
0.386 |
| 2033 |
99.1 |
0.366 |
| 2034 |
102.5 |
0.348 |
| 2035 |
106.3 |
0.331 |
| 2036 |
110.5 |
0.315 |
| 2037 |
115.1 |
0.300 |
| 2038 |
120.2 |
0.287 |
| 2039 |
125.7 |
0.276 |
| 2040 |
131.6 |
0.268 |
| 2041 |
137.8 |
0.262 |
| 2042 |
144.2 |
0.259 |
| 2043 |
150.8 |
0.258 |
| 2044 |
157.2 |
0.261 |
| 2045 |
163.5 |
0.266 |
| 2046 |
169.5 |
0.273 |
| 2047 |
175.2 |
0.283 |
| 2048 |
180.4 |
0.294 |
| 2049 |
185.3 |
0.306 |
| 2050 |
189.8 |
0.318 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
