19105-5813 B 2468 (HD 178025)
19h 10m 26.26s -58° 13' 26.8" P.A. 39.00 sep 0.2 mag 10.14,11.85 Sp K3V dist. 59.07 pc (192.69 l.y.)
Coord 2000 |
19105-5813 |
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Discov num |
B 2468 |
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Comp |
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Coord arcsec 2000 |
19 10 26.26 -58 13 26.8 |
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Date first |
1929 |
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Date last |
2018 |
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Obs |
9 |
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Pa first |
350 |
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Pa last |
39.2 |
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P.A. Now (θ) |
39.2° |
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Sep first |
1.0 |
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Sep last |
0.244 |
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Sep. Now (ρ) |
0.244" |
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Mag pri |
10.14 |
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Mag sec |
11.85 |
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delta mag (ΔM) |
1.71 |
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Spectral class |
K3V (yellow-orange) |
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Pri motion ra |
+008 |
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Sec motion ra |
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Pri motion dec |
-061 |
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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 178025 |
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Constellation |
Pavo |
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HIP |
94181 |
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Tycho2 |
8772-00156-1 |
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Gaia DR2 |
6639513221888180224 |
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HD |
178025 |
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CP |
CP-58 7587 |
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Distance |
59.07 |
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Distance ly |
192.69 |
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ORBITAL ELEMENTS
Period (P) | 182.29y | |
Periastron (T) | 2013.45y | |
Semi-major axis (a) | 0.655a | |
Eccentricity (e) | 0.891 | |
Inclination (i) | 140° | |
Longitude of periastron (ω) | 5° | |
Node (Ω) | 168.5° | |
Notes | | |
Reference | Tok2015c | |
Equinox | 2000 | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
316.6 |
0.471 |
2001 |
315.2 |
0.445 |
2002 |
313.6 |
0.418 |
2003 |
311.8 |
0.390 |
2004 |
309.7 |
0.361 |
2005 |
307.2 |
0.330 |
2006 |
304.2 |
0.298 |
2007 |
300.5 |
0.265 |
2008 |
295.7 |
0.231 |
2009 |
289.2 |
0.195 |
2010 |
279.6 |
0.158 |
2011 |
264.1 |
0.121 |
2012 |
236.5 |
0.090 |
2013 |
190.0 |
0.074 |
2014 |
132.4 |
0.071 |
2015 |
84.1 |
0.091 |
2016 |
58.2 |
0.127 |
2017 |
44.4 |
0.168 |
2018 |
36.0 |
0.207 |
2019 |
30.2 |
0.245 |
2020 |
25.9 |
0.282 |
2021 |
22.6 |
0.316 |
2022 |
20.0 |
0.348 |
2023 |
17.7 |
0.380 |
2024 |
15.8 |
0.409 |
2025 |
14.2 |
0.438 |
2026 |
12.8 |
0.465 |
2027 |
11.5 |
0.492 |
2028 |
10.3 |
0.517 |
2029 |
9.3 |
0.542 |
2030 |
8.3 |
0.565 |
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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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