13491+2659 STF 1785 (HD 120476)
13h 49m 04.00s +26° 58' 47.7" P.A. 193.00 sep 2.7 mag 7.36,8.15 Sp K4V+K6V dist. 13.41 pc (43.74 l.y.)
Coord 2000 |
13491+2659 |
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Discov num |
STF1785 |
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Comp |
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Coord arcsec 2000 |
13 49 04.00 +26 58 47.7 |
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Date first |
1823 |
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Date last |
2021 |
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Obs |
923 |
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Pa first |
160 |
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Pa last |
192.6 |
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P.A. Now (θ) |
193.7° |
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Sep first |
5.7 |
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Sep last |
2.72 |
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Sep. Now (ρ) |
2.644" |
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Mag pri |
7.36 |
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Mag sec |
8.15 |
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delta mag (ΔM) |
0.79 |
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Spectral class |
K4V+K6V (yellow-orange/yellow-orange) |
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Pri motion ra |
-417 |
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Sec motion ra |
-463 |
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Pri motion dec |
-112 |
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Sec motion dec |
-071 |
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Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.132 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 120476 |
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Constellation |
Bootes |
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SAO |
83011 |
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HIP |
67422 |
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Tycho2 |
2002-00492-1 |
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HD |
120476 |
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GC |
18670 |
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ADS |
9031 |
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GL |
Gl 528A |
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BD |
BD+27 2296 |
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Distance |
13.41 |
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Distance ly |
43.74 |
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ORBITAL ELEMENTS
Period (P) | 156.1355y | ± 0.4982 |
Periastron (T) | 1916.7297y | ± 0.3174 |
Semi-major axis (a) | 2.4432a | ± 0.00469 |
Eccentricity (e) | 0.44695 | ± 0.00244 |
Inclination (i) | 47.73° | ± 0.237 |
Longitude of periastron (ω) | 199.619° | ± 1.522 |
Node (Ω) | 155.594° | ± 0.715 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
172.8 |
3.350 |
2001 |
173.6 |
3.332 |
2002 |
174.3 |
3.313 |
2003 |
175.1 |
3.292 |
2004 |
175.8 |
3.270 |
2005 |
176.6 |
3.247 |
2006 |
177.4 |
3.223 |
2007 |
178.2 |
3.198 |
2008 |
179.0 |
3.171 |
2009 |
179.9 |
3.143 |
2010 |
180.7 |
3.114 |
2011 |
181.6 |
3.084 |
2012 |
182.5 |
3.053 |
2013 |
183.4 |
3.021 |
2014 |
184.3 |
2.988 |
2015 |
185.2 |
2.954 |
2016 |
186.2 |
2.918 |
2017 |
187.2 |
2.882 |
2018 |
188.2 |
2.845 |
2019 |
189.2 |
2.806 |
2020 |
190.3 |
2.767 |
2021 |
191.4 |
2.727 |
2022 |
192.5 |
2.686 |
2023 |
193.7 |
2.644 |
2024 |
194.9 |
2.602 |
2025 |
196.1 |
2.559 |
2026 |
197.4 |
2.515 |
2027 |
198.7 |
2.470 |
2028 |
200.1 |
2.425 |
2029 |
201.5 |
2.379 |
2030 |
203.0 |
2.333 |
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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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