15226+7254 HDS 2163 (HD 137825)
15h 22m 35.11s +72° 54' 15.2" P.A. 177.00 sep 0.2 mag 9.22,10.62 Sp G5 dist. 122.1 pc (398.29 l.y.)
Coord 2000 |
15226+7254 |
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Discov num |
HDS2163 |
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Comp |
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Coord arcsec 2000 |
15 22 35.11 +72 54 15.2 |
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Date first |
1991 |
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Date last |
2014 |
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Obs |
7 |
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Pa first |
12 |
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Pa last |
177.4 |
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P.A. Now (θ) |
177.4° |
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Sep first |
0.1 |
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Sep last |
0.226 |
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Sep. Now (ρ) |
0.226" |
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Mag pri |
9.22 |
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Mag sec |
10.62 |
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delta mag (ΔM) |
1.4 |
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Spectral class |
G5 (yellow) |
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Pri motion ra |
-038 |
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Sec motion ra |
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Pri motion dec |
+050 |
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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
Name |
HD 137825 |
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Constellation |
Ursa Minor |
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SAO |
8232 |
|
HIP |
75248 |
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Tycho2 |
4417-01473-1 |
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Gaia DR2 |
1697008412636753664 |
|
HD |
137825 |
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BD |
BD+73 673 |
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Distance |
122.1 |
|
Distance ly |
398.29 |
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ORBITAL ELEMENTS
Period (P) | 130.91y | |
Periastron (T) | 1993.53y | |
Semi-major axis (a) | 0.261a | |
Eccentricity (e) | 0.483 | |
Inclination (i) | 66° | |
Longitude of periastron (ω) | 39.2° | |
Node (Ω) | 3.7° | |
Notes | | |
Reference | Cve2015b | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
99.0 |
0.063 |
2001 |
114.4 |
0.069 |
2002 |
126.8 |
0.078 |
2003 |
136.3 |
0.090 |
2004 |
143.6 |
0.102 |
2005 |
149.3 |
0.115 |
2006 |
153.7 |
0.129 |
2007 |
157.4 |
0.142 |
2008 |
160.4 |
0.155 |
2009 |
163.0 |
0.168 |
2010 |
165.2 |
0.180 |
2011 |
167.1 |
0.192 |
2012 |
168.8 |
0.203 |
2013 |
170.4 |
0.214 |
2014 |
171.7 |
0.224 |
2015 |
173.0 |
0.234 |
2016 |
174.2 |
0.244 |
2017 |
175.3 |
0.253 |
2018 |
176.3 |
0.261 |
2019 |
177.2 |
0.269 |
2020 |
178.1 |
0.276 |
2021 |
179.0 |
0.284 |
2022 |
179.8 |
0.290 |
2023 |
180.6 |
0.297 |
2024 |
181.3 |
0.302 |
2025 |
182.0 |
0.308 |
2026 |
182.7 |
0.313 |
2027 |
183.4 |
0.318 |
2028 |
184.0 |
0.322 |
2029 |
184.7 |
0.326 |
2030 |
185.3 |
0.330 |
2031 |
185.9 |
0.333 |
2032 |
186.5 |
0.336 |
2033 |
187.1 |
0.339 |
2034 |
187.7 |
0.341 |
2035 |
188.2 |
0.343 |
2036 |
188.8 |
0.345 |
2037 |
189.4 |
0.346 |
2038 |
189.9 |
0.348 |
2039 |
190.5 |
0.348 |
2040 |
191.0 |
0.349 |
2041 |
191.6 |
0.349 |
2042 |
192.1 |
0.350 |
2043 |
192.7 |
0.349 |
2044 |
193.2 |
0.349 |
2045 |
193.7 |
0.348 |
2046 |
194.3 |
0.347 |
2047 |
194.9 |
0.346 |
2048 |
195.4 |
0.345 |
2049 |
196.0 |
0.343 |
2050 |
196.5 |
0.342 |
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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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