16076+0002 HDS 2276
16h 07m 37.61s +00° 01' 57.7" P.A. 297.00 sep 0.1 mag 9.92,12.97 Sp K3V dist. 47.3 pc (154.29 l.y.)
Coord 2000 |
16076+0002 |
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Discov num |
HDS2276 |
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Comp |
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Coord arcsec 2000 |
16 07 37.61 +00 01 57.7 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
13 |
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Pa first |
178 |
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Pa last |
296.8 |
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P.A. Now (θ) |
296.8° |
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Sep first |
0.8 |
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Sep last |
0.065 |
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Sep. Now (ρ) |
0.065" |
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Mag pri |
9.92 |
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Mag sec |
12.97 |
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delta mag (ΔM) |
3.05 |
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Spectral class |
K3V (yellow-orange) |
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Pri motion ra |
+038 |
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Sec motion ra |
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Pri motion dec |
-014 |
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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 |
Serpens |
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HIP |
79008 |
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Tycho2 |
0367-00744-1 |
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Gaia DR2 |
4411276011106481920 |
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BD |
BD+00 3459 |
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Distance |
47.3 |
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Distance ly |
154.29 |
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ORBITAL ELEMENTS
Period (P) | 165y | |
Periastron (T) | 2022.86y | |
Semi-major axis (a) | 0.6a | |
Eccentricity (e) | 0.847 | |
Inclination (i) | 69.2° | |
Longitude of periastron (ω) | 180.1° | |
Node (Ω) | 172.1° | |
Notes | | |
Reference | Tok2018i | |
Equinox | 2000 | |
Last observation | 2018 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
182.9 |
0.601 |
2001 |
183.3 |
0.581 |
2002 |
183.8 |
0.560 |
2003 |
184.3 |
0.539 |
2004 |
184.8 |
0.517 |
2005 |
185.4 |
0.494 |
2006 |
186.0 |
0.471 |
2007 |
186.7 |
0.446 |
2008 |
187.5 |
0.421 |
2009 |
188.4 |
0.395 |
2010 |
189.4 |
0.368 |
2011 |
190.6 |
0.340 |
2012 |
192.0 |
0.311 |
2013 |
193.7 |
0.281 |
2014 |
195.8 |
0.250 |
2015 |
198.5 |
0.217 |
2016 |
202.2 |
0.184 |
2017 |
207.6 |
0.149 |
2018 |
216.3 |
0.114 |
2019 |
232.2 |
0.082 |
2020 |
263.8 |
0.060 |
2021 |
306.8 |
0.062 |
2022 |
335.8 |
0.083 |
2023 |
354.6 |
0.092 |
2024 |
15.1 |
0.077 |
2025 |
49.1 |
0.059 |
2026 |
91.8 |
0.064 |
2027 |
117.9 |
0.091 |
2028 |
131.1 |
0.125 |
2029 |
138.5 |
0.160 |
2030 |
143.3 |
0.194 |
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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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