12306+0943 STF 1647 (HD 108875)
12h 30m 33.75s +09° 42' 56.4" P.A. 249.00 sep 1.3 mag 8.09,8.37 Sp F2 dist. 92.51 pc (301.77 l.y.)
Coord 2000 |
12306+0943 |
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Discov num |
STF1647 |
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Comp |
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Coord arcsec 2000 |
12 30 33.75 +09 42 56.4 |
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Date first |
1828 |
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Date last |
2017 |
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Obs |
282 |
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Pa first |
201 |
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Pa last |
248.7 |
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P.A. Now (θ) |
248.7° |
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Sep first |
1.2 |
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Sep last |
1.306 |
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Sep. Now (ρ) |
1.306" |
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Mag pri |
8.09 |
|
Mag sec |
8.37 |
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delta mag (ΔM) |
0.28 |
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Spectral class |
F2 (yellow-white) |
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Pri motion ra |
+051 |
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Sec motion ra |
+051 |
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Pri motion dec |
-058 |
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Sec motion dec |
-058 |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 108875 |
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Constellation |
Virgo |
|
SAO |
119436 |
|
HIP |
61035 |
|
Tycho2 |
0874-00223-1 |
|
Gaia DR2 |
3903746082287027072 |
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HD |
108875 |
|
GC |
17047 |
|
ADS |
8575 |
|
BD |
BD+10 2432 |
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Distance |
92.51 |
|
Distance ly |
301.77 |
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ORBITAL ELEMENTS
Period (P) | 1010.6613y | ± 461.8854 |
Periastron (T) | 2101.1215y | ± 37.8188 |
Semi-major axis (a) | 1.96209a | ± 0.84009 |
Eccentricity (e) | 0.637 | ± 0.27204 |
Inclination (i) | 66.97° | ± 9.808 |
Longitude of periastron (ω) | 259.437° | ± 21.707 |
Node (Ω) | 78.669° | ± 14.391 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
244.4 |
1.334 |
2001 |
244.6 |
1.331 |
2002 |
244.8 |
1.328 |
2003 |
245.1 |
1.325 |
2004 |
245.3 |
1.322 |
2005 |
245.5 |
1.319 |
2006 |
245.8 |
1.316 |
2007 |
246.0 |
1.313 |
2008 |
246.2 |
1.309 |
2009 |
246.5 |
1.306 |
2010 |
246.7 |
1.302 |
2011 |
247.0 |
1.299 |
2012 |
247.2 |
1.295 |
2013 |
247.5 |
1.291 |
2014 |
247.7 |
1.287 |
2015 |
248.0 |
1.283 |
2016 |
248.2 |
1.279 |
2017 |
248.5 |
1.274 |
2018 |
248.7 |
1.270 |
2019 |
249.0 |
1.265 |
2020 |
249.2 |
1.261 |
2021 |
249.5 |
1.256 |
2022 |
249.8 |
1.251 |
2023 |
250.0 |
1.246 |
2024 |
250.3 |
1.241 |
2025 |
250.6 |
1.236 |
2026 |
250.8 |
1.230 |
2027 |
251.1 |
1.225 |
2028 |
251.4 |
1.219 |
2029 |
251.7 |
1.213 |
2030 |
252.0 |
1.207 |
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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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