15002+2129 HU 907
15h 00m 10.00s +21° 28' 48.8" P.A. 284.00 sep 0.2 mag 10.19,10.20 Sp G0 dist. 158.73 pc (517.78 l.y.)
Coord 2000 |
15002+2129 |
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Discov num |
HU 907 |
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Comp |
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Coord arcsec 2000 |
15 00 10.00 +21 28 48.8 |
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Date first |
1904 |
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Date last |
2014 |
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Obs |
22 |
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Pa first |
155 |
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Pa last |
284.3 |
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P.A. Now (θ) |
284.3° |
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Sep first |
0.3 |
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Sep last |
0.19 |
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Sep. Now (ρ) |
0.19" |
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Mag pri |
10.19 |
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Mag sec |
10.20 |
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delta mag (ΔM) |
0.01 |
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Spectral class |
G0 (yellow) |
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Pri motion ra |
-025 |
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Sec motion ra |
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Pri motion dec |
-037 |
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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
Constellation |
Bootes |
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HIP |
73411 |
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Tycho2 |
1491-01319-1 |
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Gaia DR2 |
1261536627612991360 |
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ADS |
9473 |
|
BD |
BD+22 2769 |
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Distance |
158.73 |
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Distance ly |
517.78 |
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ORBITAL ELEMENTS
Period (P) | 173.2y | |
Periastron (T) | 2038.66y | |
Semi-major axis (a) | 0.259a | |
Eccentricity (e) | 0.474 | |
Inclination (i) | 47.1° | |
Longitude of periastron (ω) | 238.8° | |
Node (Ω) | 146.5° | |
Notes | | |
Reference | Lin2019d | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
260.6 |
0.210 |
2001 |
262.5 |
0.208 |
2002 |
264.5 |
0.207 |
2003 |
266.4 |
0.206 |
2004 |
268.4 |
0.205 |
2005 |
270.4 |
0.204 |
2006 |
272.4 |
0.203 |
2007 |
274.4 |
0.202 |
2008 |
276.5 |
0.201 |
2009 |
278.6 |
0.200 |
2010 |
280.7 |
0.199 |
2011 |
282.8 |
0.198 |
2012 |
284.9 |
0.197 |
2013 |
287.1 |
0.196 |
2014 |
289.2 |
0.195 |
2015 |
291.4 |
0.194 |
2016 |
293.7 |
0.193 |
2017 |
295.9 |
0.192 |
2018 |
298.2 |
0.190 |
2019 |
300.6 |
0.188 |
2020 |
302.9 |
0.187 |
2021 |
305.4 |
0.185 |
2022 |
307.8 |
0.183 |
2023 |
310.4 |
0.180 |
2024 |
313.0 |
0.178 |
2025 |
315.7 |
0.175 |
2026 |
318.5 |
0.171 |
2027 |
321.4 |
0.168 |
2028 |
324.4 |
0.164 |
2029 |
327.6 |
0.160 |
2030 |
331.0 |
0.155 |
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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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