15258+8430 MLR 347 (HD 140625)
15h 25m 47.59s +84° 30' 14.1" P.A. 214.00 sep 0.2 mag 9.52,9.91 Sp K0V dist. 59.99 pc (195.69 l.y.)
Coord 2000 |
15258+8430 |
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Discov num |
MLR 347 |
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Comp |
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Coord arcsec 2000 |
15 25 47.59 +84 30 14.1 |
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Date first |
1972 |
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Date last |
2008 |
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Obs |
13 |
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Pa first |
23 |
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Pa last |
213.5 |
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P.A. Now (θ) |
265.6° |
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Sep first |
0.2 |
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Sep last |
0.197 |
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Sep. Now (ρ) |
0.118" |
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Mag pri |
9.52 |
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Mag sec |
9.91 |
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delta mag (ΔM) |
0.39 |
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Spectral class |
K0V (yellow-orange) |
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Pri motion ra |
+128 |
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Sec motion ra |
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Pri motion dec |
-016 |
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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 140625 |
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Constellation |
Ursa Minor |
|
SAO |
2559 |
|
HIP |
75529 |
|
Tycho2 |
4638-01028-1 |
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Gaia DR2 |
1724154117776702848 |
|
HD |
140625 |
|
GC |
20944 |
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BD |
BD+84 348 |
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Distance |
59.99 |
|
Distance ly |
195.69 |
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ORBITAL ELEMENTS
Period (P) | 20.19y | |
Periastron (T) | 1979.62y | |
Semi-major axis (a) | 0.131a | |
Eccentricity (e) | 0.505 | |
Inclination (i) | 158.3° | |
Longitude of periastron (ω) | 23.5° | |
Node (Ω) | 44.5° | |
Notes | | |
Reference | Msn2017a | |
Equinox | 2000 | |
Last observation | 2008 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
11.1 |
0.064 |
2001 |
316.8 |
0.074 |
2002 |
282.8 |
0.098 |
2003 |
262.4 |
0.122 |
2004 |
248.5 |
0.144 |
2005 |
238.0 |
0.161 |
2006 |
229.3 |
0.175 |
2007 |
221.8 |
0.185 |
2008 |
214.9 |
0.192 |
2009 |
208.3 |
0.195 |
2010 |
201.9 |
0.195 |
2011 |
195.3 |
0.192 |
2012 |
188.5 |
0.186 |
2013 |
181.0 |
0.177 |
2014 |
172.7 |
0.165 |
2015 |
162.8 |
0.150 |
2016 |
150.6 |
0.133 |
2017 |
134.3 |
0.113 |
2018 |
111.0 |
0.093 |
2019 |
75.3 |
0.075 |
2020 |
22.5 |
0.064 |
2021 |
325.6 |
0.071 |
2022 |
287.9 |
0.093 |
2023 |
265.6 |
0.118 |
2024 |
250.8 |
0.140 |
2025 |
239.8 |
0.158 |
2026 |
230.9 |
0.173 |
2027 |
223.2 |
0.183 |
2028 |
216.2 |
0.191 |
2029 |
209.6 |
0.194 |
2030 |
203.1 |
0.195 |
2031 |
196.6 |
0.193 |
2032 |
189.8 |
0.187 |
2033 |
182.5 |
0.179 |
2034 |
174.3 |
0.168 |
2035 |
164.8 |
0.153 |
2036 |
153.1 |
0.136 |
2037 |
137.8 |
0.117 |
2038 |
116.2 |
0.097 |
2039 |
83.3 |
0.078 |
2040 |
33.7 |
0.065 |
2041 |
335.3 |
0.068 |
2042 |
293.5 |
0.088 |
2043 |
269.1 |
0.113 |
2044 |
253.3 |
0.136 |
2045 |
241.7 |
0.155 |
2046 |
232.5 |
0.170 |
2047 |
224.6 |
0.182 |
2048 |
217.5 |
0.189 |
2049 |
210.8 |
0.194 |
2050 |
204.3 |
0.195 |
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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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