13491+2659 STF 1785 (HD 120476)
13h 49m 04.00s +26° 58' 47.7" P.A. 194.00 sep 2.6 mag 7.36,8.15 Sp K4V+K6V dist. 13.41 pc (43.74 l.y.)
| Coord 2000 |
13491+2659 |
|
Discov num |
STF1785 |
|
Comp |
|
|
Coord arcsec 2000 |
13 49 04.00 +26 58 47.7 |
|
| Date first |
1823 |
|
Date last |
2024 |
|
Obs |
927 |
|
| Pa first |
160 |
|
Pa last |
194.4 |
|
P.A. Now (θ) |
196.1° |
|
| Sep first |
5.7 |
|
Sep last |
2.59 |
|
Sep. Now (ρ) |
2.559" |
|
| Mag pri |
7.36 |
|
Mag sec |
8.15 |
|
delta mag (ΔM) |
0.79 |
|
Spectral class |
K4V+K6V (yellow-orange/yellow-orange) |
|
| Pri motion ra |
-417 |
|
Sec motion ra |
-463 |
|
| Pri motion dec |
-112 |
|
Sec motion dec |
-071 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.132 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 120476 |
|
Constellation |
Bootes |
|
SAO |
83011 |
|
HIP |
67422 |
|
| Tycho2 |
2002-00492-1 |
|
HD |
120476 |
|
GC |
18670 |
|
ADS |
9031 |
|
| BD |
BD+27 2296 |
|
Distance |
13.41 |
|
Distance ly |
43.74 |
|
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 |
| 2031 |
204.6 |
2.286 |
| 2032 |
206.2 |
2.239 |
| 2033 |
207.9 |
2.192 |
| 2034 |
209.7 |
2.145 |
| 2035 |
211.5 |
2.098 |
| 2036 |
213.4 |
2.051 |
| 2037 |
215.4 |
2.004 |
| 2038 |
217.6 |
1.957 |
| 2039 |
219.8 |
1.911 |
| 2040 |
222.1 |
1.866 |
| 2041 |
224.5 |
1.821 |
| 2042 |
227.1 |
1.778 |
| 2043 |
229.8 |
1.735 |
| 2044 |
232.6 |
1.695 |
| 2045 |
235.5 |
1.655 |
| 2046 |
238.6 |
1.618 |
| 2047 |
241.9 |
1.583 |
| 2048 |
245.2 |
1.550 |
| 2049 |
248.8 |
1.520 |
| 2050 |
252.4 |
1.493 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
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