19072+2053 LDS 1017 (HD 349726)
19h 07m 13.20s +20° 52' 37.3" P.A. 290.00 sep 113.8 mag 10.95,10.99 Sp M2V+M2V dist. 8.51 pc (27.76 l.y.)
Coord 2000 |
19072+2053 |
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Discov num |
LDS1017 |
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Comp |
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Coord arcsec 2000 |
19 07 13.20 +20 52 37.3 |
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Date first |
1897 |
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Date last |
2019 |
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Obs |
28 |
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Pa first |
292 |
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Pa last |
290.1 |
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P.A. Now (θ) |
290.1° |
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Sep first |
115.4 |
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Sep last |
113.82 |
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Sep. Now (ρ) |
113.82" |
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Mag pri |
10.95 |
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Mag sec |
10.99 |
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delta mag (ΔM) |
0.04 |
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Spectral class |
M2V+M2V (red/red) |
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Pri motion ra |
-481 |
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Sec motion ra |
-478 |
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Pri motion dec |
-333 |
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Sec motion dec |
-349 |
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Notes |
N
O
W
T
(See Notes, Orbital solution, , Parallax indicates physical) |
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rPM=0.028 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 349726 |
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Constellation |
Sagitta |
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HIP |
93873 |
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Tycho2 |
1598-00578-1 |
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HD |
349726 |
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GL |
Gl 745A |
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Distance |
8.51 |
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Distance ly |
27.76 |
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ORBITAL ELEMENTS
Period (P) | 360c | |
Periastron (T) | 8254y | |
Semi-major axis (a) | 117.9a | |
Eccentricity (e) | 0.64 | |
Inclination (i) | 153° | |
Longitude of periastron (ω) | 231° | |
Node (Ω) | 206° | |
Notes | n | |
Reference | Kiy2012 | |
Equinox | | |
Last observation | 2007 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
110.6 |
115.415 |
2001 |
110.6 |
115.405 |
2002 |
110.6 |
115.395 |
2003 |
110.6 |
115.384 |
2004 |
110.6 |
115.374 |
2005 |
110.6 |
115.364 |
2006 |
110.6 |
115.353 |
2007 |
110.6 |
115.343 |
2008 |
110.6 |
115.333 |
2009 |
110.6 |
115.322 |
2010 |
110.6 |
115.312 |
2011 |
110.6 |
115.302 |
2012 |
110.6 |
115.291 |
2013 |
110.6 |
115.281 |
2014 |
110.5 |
115.271 |
2015 |
110.5 |
115.261 |
2016 |
110.5 |
115.250 |
2017 |
110.5 |
115.240 |
2018 |
110.5 |
115.230 |
2019 |
110.5 |
115.219 |
2020 |
110.5 |
115.209 |
2021 |
110.5 |
115.199 |
2022 |
110.5 |
115.188 |
2023 |
110.5 |
115.178 |
2024 |
110.5 |
115.168 |
2025 |
110.5 |
115.157 |
2026 |
110.5 |
115.147 |
2027 |
110.5 |
115.137 |
2028 |
110.4 |
115.126 |
2029 |
110.4 |
115.116 |
2030 |
110.4 |
115.106 |
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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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