13063+2044 HU 739
13h 06m 15.40s +20° 43' 45.1" P.A. 196.00 sep 1.7 mag 9.72,12.11 Sp K4V dist. 18.8 pc (61.33 l.y.)
Coord 2000 |
13063+2044 |
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Discov num |
HU 739 |
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Comp |
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Coord arcsec 2000 |
13 06 15.40 +20 43 45.1 |
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Date first |
1902 |
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Date last |
2019 |
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Obs |
43 |
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Pa first |
34 |
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Pa last |
196.4 |
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P.A. Now (θ) |
196.4° |
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Sep first |
0.9 |
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Sep last |
1.66 |
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Sep. Now (ρ) |
1.66" |
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Mag pri |
9.72 |
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Mag sec |
12.11 |
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delta mag (ΔM) |
2.39 |
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Spectral class |
K4V (yellow-orange) |
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Pri motion ra |
-044 |
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Sec motion ra |
-066 |
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Pri motion dec |
+086 |
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Sec motion dec |
+067 |
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Notes |
O
(Orbital solution) |
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rPM=0.301
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Coma Berenices |
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HIP |
63942 |
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Tycho2 |
1456-00692-1 |
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Gaia DR2 |
3943232534138172672 |
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ADS |
8778 |
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GL |
Gl 499A |
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BD |
BD+21 2486 |
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Distance |
18.8 |
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Distance ly |
61.33 |
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ORBITAL ELEMENTS
Period (P) | 307.7763y | ± 120.3725 |
Periastron (T) | 1934.6695y | ± 10.1375 |
Semi-major axis (a) | 2.21493a | ± 0.5524 |
Eccentricity (e) | 0.34805 | ± 0.16615 |
Inclination (i) | 108.714° | ± 1.801 |
Longitude of periastron (ω) | 174.739° | ± 16.973 |
Node (Ω) | 175.908° | ± 2.861 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
216.0 |
1.070 |
2001 |
214.6 |
1.103 |
2002 |
213.2 |
1.137 |
2003 |
211.9 |
1.171 |
2004 |
210.7 |
1.205 |
2005 |
209.5 |
1.239 |
2006 |
208.4 |
1.273 |
2007 |
207.4 |
1.307 |
2008 |
206.4 |
1.341 |
2009 |
205.5 |
1.375 |
2010 |
204.6 |
1.409 |
2011 |
203.7 |
1.443 |
2012 |
202.9 |
1.477 |
2013 |
202.1 |
1.511 |
2014 |
201.4 |
1.544 |
2015 |
200.7 |
1.577 |
2016 |
200.0 |
1.610 |
2017 |
199.3 |
1.643 |
2018 |
198.7 |
1.675 |
2019 |
198.1 |
1.708 |
2020 |
197.5 |
1.740 |
2021 |
197.0 |
1.771 |
2022 |
196.4 |
1.803 |
2023 |
195.9 |
1.834 |
2024 |
195.4 |
1.864 |
2025 |
194.9 |
1.895 |
2026 |
194.4 |
1.925 |
2027 |
194.0 |
1.955 |
2028 |
193.5 |
1.984 |
2029 |
193.1 |
2.013 |
2030 |
192.7 |
2.042 |
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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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