16413+3006 A 349
16h 41m 17.67s +30° 06' 36.2" P.A. 127.00 sep 0.7 mag 10.66,10.91 Sp K6
Coord 2000 |
16413+3006 |
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Discov num |
A 349 |
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Comp |
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Coord arcsec 2000 |
16 41 17.67 +30 06 36.2 |
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Date first |
1902 |
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Date last |
2018 |
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Obs |
68 |
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Pa first |
112 |
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Pa last |
126.5 |
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P.A. Now (θ) |
124.3° |
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Sep first |
0.6 |
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Sep last |
0.7 |
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Sep. Now (ρ) |
0.664" |
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Mag pri |
10.66 |
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Mag sec |
10.91 |
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delta mag (ΔM) |
0.25 |
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Spectral class |
K6 (yellow-orange) |
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Pri motion ra |
-043 |
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Sec motion ra |
-043 |
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Pri motion dec |
+092 |
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Sec motion dec |
+092 |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Hercules |
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HIP |
81694 |
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Tycho2 |
2582-01818-1 |
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Gaia DR2 |
1312238029347256704 |
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ADS |
10158 |
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BD |
BD+30 2860 |
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ORBITAL ELEMENTS
Period (P) | 135.69y | |
Periastron (T) | 1951.28y | |
Semi-major axis (a) | 0.435a | |
Eccentricity (e) | 0.532 | |
Inclination (i) | 165.1° | |
Longitude of periastron (ω) | 8.5° | |
Node (Ω) | 316.1° | |
Notes | | |
Reference | Hrt2014b | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
146.3 |
0.627 |
2001 |
145.3 |
0.631 |
2002 |
144.2 |
0.635 |
2003 |
143.2 |
0.638 |
2004 |
142.2 |
0.642 |
2005 |
141.2 |
0.645 |
2006 |
140.3 |
0.648 |
2007 |
139.3 |
0.651 |
2008 |
138.3 |
0.653 |
2009 |
137.4 |
0.656 |
2010 |
136.4 |
0.658 |
2011 |
135.5 |
0.659 |
2012 |
134.5 |
0.661 |
2013 |
133.6 |
0.662 |
2014 |
132.6 |
0.664 |
2015 |
131.7 |
0.664 |
2016 |
130.8 |
0.665 |
2017 |
129.9 |
0.666 |
2018 |
128.9 |
0.666 |
2019 |
128.0 |
0.666 |
2020 |
127.1 |
0.666 |
2021 |
126.1 |
0.665 |
2022 |
125.2 |
0.665 |
2023 |
124.3 |
0.664 |
2024 |
123.4 |
0.663 |
2025 |
122.4 |
0.661 |
2026 |
121.5 |
0.660 |
2027 |
120.5 |
0.658 |
2028 |
119.6 |
0.656 |
2029 |
118.6 |
0.654 |
2030 |
117.7 |
0.652 |
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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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