16192+4140 STT 309 (HD 147275)
16h 19m 14.48s +41° 39' 33.6" P.A. 317.00 sep 0.3 mag 8.74,8.97 Sp A5+G dist. 209.21 pc (682.44 l.y.)
Coord 2000 |
16192+4140 |
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Discov num |
STT 309 |
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Comp |
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Coord arcsec 2000 |
16 19 14.48 +41 39 33.6 |
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Date first |
1843 |
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Date last |
2016 |
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Obs |
110 |
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Pa first |
225 |
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Pa last |
316.8 |
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P.A. Now (θ) |
316.8° |
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Sep first |
0.3 |
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Sep last |
0.27 |
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Sep. Now (ρ) |
0.27" |
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Mag pri |
8.74 |
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Mag sec |
8.97 |
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delta mag (ΔM) |
0.23 |
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Spectral class |
A5+G (white/yellow) |
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Pri motion ra |
-026 |
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Sec motion ra |
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Pri motion dec |
+028 |
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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 147275 |
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Constellation |
Hercules |
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SAO |
46022 |
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HIP |
79957 |
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Tycho2 |
3065-00774-1 |
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HD |
147275 |
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ADS |
10006 |
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BD |
BD+41 2689 |
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Distance |
209.21 |
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Distance ly |
682.44 |
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ORBITAL ELEMENTS
Period (P) | 345y | |
Periastron (T) | 1795y | |
Semi-major axis (a) | 0.418a | |
Eccentricity (e) | 0.445 | |
Inclination (i) | 61.1° | |
Longitude of periastron (ω) | 66.7° | |
Node (Ω) | 44.8° | |
Notes | | |
Reference | USN2002 | |
Equinox | 2000 | |
Last observation | 1997 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
297.6 |
0.294 |
2001 |
298.5 |
0.293 |
2002 |
299.5 |
0.291 |
2003 |
300.4 |
0.290 |
2004 |
301.3 |
0.288 |
2005 |
302.3 |
0.287 |
2006 |
303.3 |
0.286 |
2007 |
304.2 |
0.284 |
2008 |
305.2 |
0.283 |
2009 |
306.2 |
0.282 |
2010 |
307.2 |
0.281 |
2011 |
308.2 |
0.280 |
2012 |
309.2 |
0.279 |
2013 |
310.2 |
0.278 |
2014 |
311.3 |
0.277 |
2015 |
312.3 |
0.276 |
2016 |
313.3 |
0.275 |
2017 |
314.4 |
0.274 |
2018 |
315.4 |
0.274 |
2019 |
316.5 |
0.273 |
2020 |
317.5 |
0.272 |
2021 |
318.6 |
0.272 |
2022 |
319.7 |
0.271 |
2023 |
320.8 |
0.271 |
2024 |
321.8 |
0.270 |
2025 |
322.9 |
0.270 |
2026 |
324.0 |
0.270 |
2027 |
325.1 |
0.270 |
2028 |
326.2 |
0.270 |
2029 |
327.2 |
0.269 |
2030 |
328.3 |
0.269 |
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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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