19153+2454 HDS 2724 (HD 338030)
19h 15m 18.83s +24° 53' 49.4" P.A. 9.00 sep 0.1 mag 10.36,10.82 Sp M0 dist. 27.6 pc (90.03 l.y.)
Coord 2000 |
19153+2454 |
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Discov num |
HDS2724 |
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Comp |
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Coord arcsec 2000 |
19 15 18.83 +24 53 49.4 |
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Date first |
1991 |
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Date last |
2021 |
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Obs |
12 |
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Pa first |
284 |
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Pa last |
9.2 |
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P.A. Now (θ) |
302.3° |
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Sep first |
0.2 |
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Sep last |
0.066 |
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Sep. Now (ρ) |
0.137" |
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Mag pri |
10.36 |
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Mag sec |
10.82 |
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delta mag (ΔM) |
0.46 |
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Spectral class |
M0 (red) |
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Pri motion ra |
+239 |
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Sec motion ra |
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Pri motion dec |
+219 |
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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 338030 |
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Constellation |
Vulpecula |
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HIP |
94622 |
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Tycho2 |
2127-00939-1 |
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Gaia DR2 |
2023507806418375552 |
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HD |
338030 |
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GL |
Gl 751 |
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BD |
BD+24 3692 |
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Distance |
27.6 |
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Distance ly |
90.03 |
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ORBITAL ELEMENTS
Period (P) | 8.145y | ± 0.054 |
Periastron (T) | 2019.649y | ± 0.067 |
Semi-major axis (a) | 0.148a | ± 0.003 |
Eccentricity (e) | 0.527 | ± 0.018 |
Inclination (i) | 113.7° | ± 1.3 |
Longitude of periastron (ω) | 133.1° | ± 3.8 |
Node (Ω) | 268.8° | ± 1.5 |
Notes | | |
Reference | Tok2021f | |
Equinox | 2000 | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
284.6 |
0.188 |
2001 |
275.6 |
0.189 |
2002 |
264.3 |
0.146 |
2003 |
204.7 |
0.036 |
2004 |
72.6 |
0.085 |
2005 |
12.0 |
0.068 |
2006 |
319.0 |
0.102 |
2007 |
297.7 |
0.151 |
2008 |
286.0 |
0.185 |
2009 |
276.9 |
0.191 |
2010 |
266.4 |
0.156 |
2011 |
230.8 |
0.053 |
2012 |
79.3 |
0.084 |
2013 |
22.5 |
0.068 |
2014 |
324.0 |
0.095 |
2015 |
299.9 |
0.144 |
2016 |
287.5 |
0.181 |
2017 |
278.2 |
0.193 |
2018 |
268.3 |
0.165 |
2019 |
243.4 |
0.072 |
2020 |
86.3 |
0.081 |
2021 |
32.8 |
0.069 |
2022 |
329.8 |
0.088 |
2023 |
302.3 |
0.137 |
2024 |
289.0 |
0.177 |
2025 |
279.5 |
0.193 |
2026 |
270.0 |
0.172 |
2027 |
250.7 |
0.091 |
2028 |
94.4 |
0.072 |
2029 |
42.5 |
0.072 |
2030 |
336.5 |
0.082 |
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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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