19036-7224 HDS 2703 (HD 175739)
19h 03m 33.56s -72° 23' 29.8" P.A. 9.00 sep 0.1 mag 8.67,10.99 Sp F6V dist. 110.25 pc (359.64 l.y.)
Coord 2000 |
19036-7224 |
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Discov num |
HDS2703 |
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Comp |
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Coord arcsec 2000 |
19 03 33.56 -72 23 29.8 |
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Date first |
1991 |
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Date last |
2020 |
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Obs |
6 |
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Pa first |
200 |
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Pa last |
9.4 |
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P.A. Now (θ) |
9.4° |
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Sep first |
0.4 |
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Sep last |
0.15 |
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Sep. Now (ρ) |
0.15" |
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Mag pri |
8.67 |
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Mag sec |
10.99 |
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delta mag (ΔM) |
2.32 |
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Spectral class |
F6V (yellow-white) |
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Pri motion ra |
+000 |
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Sec motion ra |
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Pri motion dec |
-131 |
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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 175739 |
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Constellation |
Pavo |
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HIP |
93584 |
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Tycho2 |
9300-00548-1 |
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Gaia DR2 |
6416875929879613568 |
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HD |
175739 |
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CP |
CP-72 2327 |
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Distance |
110.25 |
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Distance ly |
359.64 |
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ORBITAL ELEMENTS
Period (P) | 100y | |
Periastron (T) | 2017.37y | |
Semi-major axis (a) | 0.319a | |
Eccentricity (e) | 0.58 | |
Inclination (i) | 115.5° | |
Longitude of periastron (ω) | 120.6° | |
Node (Ω) | 186.8° | |
Notes | | |
Reference | Tok2020g | |
Equinox | 2000 | |
Last observation | 2019 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
190.8 |
0.333 |
2001 |
189.6 |
0.324 |
2002 |
188.4 |
0.314 |
2003 |
187.0 |
0.302 |
2004 |
185.6 |
0.290 |
2005 |
184.0 |
0.276 |
2006 |
182.2 |
0.260 |
2007 |
180.1 |
0.243 |
2008 |
177.8 |
0.225 |
2009 |
175.0 |
0.204 |
2010 |
171.5 |
0.182 |
2011 |
167.1 |
0.158 |
2012 |
161.0 |
0.133 |
2013 |
151.9 |
0.107 |
2014 |
137.2 |
0.082 |
2015 |
112.2 |
0.064 |
2016 |
78.2 |
0.062 |
2017 |
50.2 |
0.077 |
2018 |
33.1 |
0.099 |
2019 |
22.4 |
0.121 |
2020 |
15.0 |
0.141 |
2021 |
9.2 |
0.157 |
2022 |
4.4 |
0.169 |
2023 |
0.1 |
0.178 |
2024 |
356.2 |
0.184 |
2025 |
352.5 |
0.188 |
2026 |
348.9 |
0.190 |
2027 |
345.4 |
0.191 |
2028 |
341.8 |
0.190 |
2029 |
338.3 |
0.189 |
2030 |
334.6 |
0.187 |
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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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