01028+0214 A 2308
01h 02m 45.24s +02° 13' 41.6" P.A. 306.00 sep 0.4 mag 9.87,11.73 Sp G5 dist. 111.23 pc (362.83 l.y.)
| Coord 2000 |
01028+0214 |
|
Discov num |
A 2308 |
|
Comp |
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Coord arcsec 2000 |
01 02 45.24 +02 13 41.6 |
|
| Date first |
1910 |
|
Date last |
2019 |
|
Obs |
35 |
|
| Pa first |
338 |
|
Pa last |
305.9 |
|
P.A. Now (θ) |
125.1° |
|
| Sep first |
0.3 |
|
Sep last |
0.398 |
|
Sep. Now (ρ) |
0.41" |
|
| Mag pri |
9.87 |
|
Mag sec |
11.73 |
|
delta mag (ΔM) |
1.86 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+116 |
|
Sec motion ra |
|
|
| Pri motion dec |
-008 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cetus |
|
HIP |
4886 |
|
Tycho2 |
0019-00158-1 |
|
Gaia DR2 |
2539121001095832576 |
|
| ADS |
864 |
|
BD |
BD+01 194 |
|
Distance |
111.23 |
|
Distance ly |
362.83 |
|
ORBITAL ELEMENTS
| Period (P) | 141.8y | ± 5.52 |
Periastron (T) | 1958.95y | ± 4.96 |
Semi-major axis (a) | 0.367a | ± 0.006 |
| Eccentricity (e) | 0.124 | ± 0.025 |
Inclination (i) | 62.9° | ± 2.2 |
Longitude of periastron (ω) | 10.5° | ± 13.9 |
| Node (Ω) | 306.6° | ± 1.7 |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
96.2 |
0.273 |
| 2001 |
98.2 |
0.282 |
| 2002 |
100.1 |
0.292 |
| 2003 |
101.9 |
0.301 |
| 2004 |
103.5 |
0.310 |
| 2005 |
105.1 |
0.319 |
| 2006 |
106.6 |
0.327 |
| 2007 |
108.0 |
0.335 |
| 2008 |
109.4 |
0.343 |
| 2009 |
110.6 |
0.350 |
| 2010 |
111.9 |
0.357 |
| 2011 |
113.1 |
0.364 |
| 2012 |
114.2 |
0.370 |
| 2013 |
115.3 |
0.376 |
| 2014 |
116.4 |
0.382 |
| 2015 |
117.4 |
0.387 |
| 2016 |
118.5 |
0.391 |
| 2017 |
119.5 |
0.395 |
| 2018 |
120.4 |
0.399 |
| 2019 |
121.4 |
0.402 |
| 2020 |
122.4 |
0.405 |
| 2021 |
123.3 |
0.407 |
| 2022 |
124.2 |
0.409 |
| 2023 |
125.1 |
0.410 |
| 2024 |
126.1 |
0.411 |
| 2025 |
127.0 |
0.412 |
| 2026 |
127.9 |
0.412 |
| 2027 |
128.8 |
0.411 |
| 2028 |
129.7 |
0.410 |
| 2029 |
130.6 |
0.409 |
| 2030 |
131.6 |
0.407 |
| 2031 |
132.5 |
0.404 |
| 2032 |
133.5 |
0.402 |
| 2033 |
134.4 |
0.398 |
| 2034 |
135.4 |
0.395 |
| 2035 |
136.4 |
0.390 |
| 2036 |
137.4 |
0.386 |
| 2037 |
138.5 |
0.381 |
| 2038 |
139.6 |
0.376 |
| 2039 |
140.7 |
0.370 |
| 2040 |
141.8 |
0.364 |
| 2041 |
143.0 |
0.357 |
| 2042 |
144.2 |
0.350 |
| 2043 |
145.5 |
0.343 |
| 2044 |
146.9 |
0.336 |
| 2045 |
148.3 |
0.328 |
| 2046 |
149.8 |
0.320 |
| 2047 |
151.3 |
0.312 |
| 2048 |
152.9 |
0.303 |
| 2049 |
154.7 |
0.294 |
| 2050 |
156.5 |
0.285 |
|
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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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