00428+1249 HDS 93
00h 42m 47.92s +12° 48' 41.8" P.A. 11.00 sep 0.3 mag 10.78,12.02 dist. 75.64 pc (246.74 l.y.)
| Coord 2000 |
00428+1249 |
|
Discov num |
HDS 93 |
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Comp |
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Coord arcsec 2000 |
00 42 47.92 +12 48 41.8 |
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| Date first |
1991 |
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Date last |
2021 |
|
Obs |
15 |
|
| Pa first |
160 |
|
Pa last |
11.3 |
|
P.A. Now (θ) |
11.3° |
|
| Sep first |
0.2 |
|
Sep last |
0.316 |
|
Sep. Now (ρ) |
0.316" |
|
| Mag pri |
10.78 |
|
Mag sec |
12.02 |
|
delta mag (ΔM) |
1.24 |
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Spectral class |
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| Pri motion ra |
+193 |
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Sec motion ra |
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| Pri motion dec |
-077 |
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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
| Constellation |
Pisces |
|
HIP |
3361 |
|
Tycho2 |
0610-00266-1 |
|
BD |
BD+12 81 |
|
| Distance |
75.64 |
|
Distance ly |
246.74 |
|
ORBITAL ELEMENTS
| Period (P) | 88.72y | ± 0.505 |
Periastron (T) | 1995.03y | ± 0.566 |
Semi-major axis (a) | 0.3023a | ± 0.0021 |
| Eccentricity (e) | 0.138 | ± 0.003 |
Inclination (i) | 143.4° | ± 0.5 |
Longitude of periastron (ω) | 263.9° | ± 2 |
| Node (Ω) | 32.7° | ± 0.7 |
Notes | | |
Reference | Cve2017b | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
97.7 |
0.219 |
| 2001 |
91.7 |
0.224 |
| 2002 |
85.9 |
0.230 |
| 2003 |
80.5 |
0.236 |
| 2004 |
75.3 |
0.242 |
| 2005 |
70.4 |
0.249 |
| 2006 |
65.8 |
0.256 |
| 2007 |
61.4 |
0.262 |
| 2008 |
57.2 |
0.269 |
| 2009 |
53.2 |
0.275 |
| 2010 |
49.4 |
0.280 |
| 2011 |
45.7 |
0.286 |
| 2012 |
42.1 |
0.290 |
| 2013 |
38.7 |
0.295 |
| 2014 |
35.4 |
0.298 |
| 2015 |
32.1 |
0.302 |
| 2016 |
28.9 |
0.304 |
| 2017 |
25.7 |
0.306 |
| 2018 |
22.6 |
0.308 |
| 2019 |
19.5 |
0.309 |
| 2020 |
16.4 |
0.309 |
| 2021 |
13.3 |
0.309 |
| 2022 |
10.2 |
0.309 |
| 2023 |
7.1 |
0.308 |
| 2024 |
4.0 |
0.307 |
| 2025 |
0.8 |
0.305 |
| 2026 |
357.6 |
0.304 |
| 2027 |
354.4 |
0.302 |
| 2028 |
351.2 |
0.299 |
| 2029 |
347.8 |
0.297 |
| 2030 |
344.5 |
0.295 |
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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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