16115+1507 A 1799 (HD 145648)
16h 11m 28.81s +15° 07' 25.3" P.A. 116.00 sep 0.8 mag 9.53,9.75 Sp G5 dist. 185.53 pc (605.2 l.y.)
Coord 2000 |
16115+1507 |
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Discov num |
A 1799 |
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Comp |
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Coord arcsec 2000 |
16 11 28.81 +15 07 25.3 |
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Date first |
1908 |
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Date last |
2016 |
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Obs |
75 |
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Pa first |
171 |
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Pa last |
116.3 |
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P.A. Now (θ) |
116.3° |
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Sep first |
0.3 |
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Sep last |
0.803 |
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Sep. Now (ρ) |
0.803" |
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Mag pri |
9.53 |
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Mag sec |
9.75 |
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delta mag (ΔM) |
0.22 |
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Spectral class |
G5 (yellow) |
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Pri motion ra |
+002 |
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Sec motion ra |
+002 |
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Pri motion dec |
+000 |
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Sec motion dec |
+000 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 145648 |
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Constellation |
Hercules |
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SAO |
101993 |
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HIP |
79333 |
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Tycho2 |
1504-00937-1 |
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Gaia DR2 |
4464707294053625600 |
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HD |
145648 |
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ADS |
9952 |
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BD |
BD+15 2964 |
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Distance |
185.53 |
|
Distance ly |
605.2 |
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ORBITAL ELEMENTS
Period (P) | 540y | |
Periastron (T) | 1833y | |
Semi-major axis (a) | 0.693a | |
Eccentricity (e) | 0.48 | |
Inclination (i) | 123.1° | |
Longitude of periastron (ω) | 163.6° | |
Node (Ω) | 90.1° | |
Notes | | |
Reference | Zir2014a | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
119.7 |
0.729 |
2001 |
119.4 |
0.734 |
2002 |
119.1 |
0.738 |
2003 |
118.8 |
0.742 |
2004 |
118.5 |
0.746 |
2005 |
118.3 |
0.750 |
2006 |
118.0 |
0.754 |
2007 |
117.7 |
0.758 |
2008 |
117.5 |
0.761 |
2009 |
117.2 |
0.765 |
2010 |
116.9 |
0.769 |
2011 |
116.7 |
0.773 |
2012 |
116.4 |
0.777 |
2013 |
116.2 |
0.781 |
2014 |
115.9 |
0.784 |
2015 |
115.7 |
0.788 |
2016 |
115.4 |
0.792 |
2017 |
115.2 |
0.795 |
2018 |
114.9 |
0.799 |
2019 |
114.7 |
0.803 |
2020 |
114.5 |
0.806 |
2021 |
114.2 |
0.810 |
2022 |
114.0 |
0.813 |
2023 |
113.8 |
0.817 |
2024 |
113.5 |
0.820 |
2025 |
113.3 |
0.824 |
2026 |
113.1 |
0.827 |
2027 |
112.9 |
0.831 |
2028 |
112.6 |
0.834 |
2029 |
112.4 |
0.837 |
2030 |
112.2 |
0.841 |
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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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