02402+0436 HDS 347
02h 40m 14.23s +04° 35' 55.9" P.A. 325.00 sep 0.6 mag 11.58,11.94 Sp K7 dist. 100 pc (326.2 l.y.)
Coord 2000 |
02402+0436 |
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Discov num |
HDS 347 |
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Comp |
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Coord arcsec 2000 |
02 40 14.23 +04 35 55.9 |
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Date first |
1991 |
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Date last |
2018 |
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Obs |
17 |
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Pa first |
82 |
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Pa last |
324.9 |
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P.A. Now (θ) |
324.9° |
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Sep first |
0.3 |
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Sep last |
0.611 |
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Sep. Now (ρ) |
0.611" |
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Mag pri |
11.58 |
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Mag sec |
11.94 |
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delta mag (ΔM) |
0.36 |
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Spectral class |
K7 (yellow-orange) |
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Pri motion ra |
+072 |
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Sec motion ra |
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Pri motion dec |
-039 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cetus |
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HIP |
12446 |
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Tycho2 |
0050-00874-3 |
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Gaia DR2 |
5939394309662848 |
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Distance |
100 |
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Distance ly |
326.2 |
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ORBITAL ELEMENTS
Period (P) | 362.678y | ± 2.712 |
Periastron (T) | 2346.36y | ± 0.185 |
Semi-major axis (a) | 0.8002a | ± 0.0103 |
Eccentricity (e) | 0.631 | ± 0.006 |
Inclination (i) | 35° | ± 0.3 |
Longitude of periastron (ω) | 261.5° | ± 1 |
Node (Ω) | 135.2° | ± 0.7 |
Notes | n | |
Reference | Cve2020b | |
Equinox | | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
114.0 |
0.395 |
2001 |
116.5 |
0.408 |
2002 |
118.9 |
0.421 |
2003 |
121.1 |
0.434 |
2004 |
123.2 |
0.447 |
2005 |
125.1 |
0.459 |
2006 |
127.0 |
0.472 |
2007 |
128.8 |
0.484 |
2008 |
130.5 |
0.496 |
2009 |
132.1 |
0.507 |
2010 |
133.6 |
0.519 |
2011 |
135.1 |
0.530 |
2012 |
136.5 |
0.541 |
2013 |
137.8 |
0.552 |
2014 |
139.1 |
0.563 |
2015 |
140.4 |
0.573 |
2016 |
141.6 |
0.583 |
2017 |
142.8 |
0.593 |
2018 |
143.9 |
0.603 |
2019 |
145.0 |
0.613 |
2020 |
146.0 |
0.622 |
2021 |
147.1 |
0.632 |
2022 |
148.1 |
0.641 |
2023 |
149.0 |
0.650 |
2024 |
150.0 |
0.659 |
2025 |
150.9 |
0.667 |
2026 |
151.8 |
0.676 |
2027 |
152.7 |
0.684 |
2028 |
153.5 |
0.692 |
2029 |
154.4 |
0.700 |
2030 |
155.2 |
0.708 |
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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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