20347-6319 HU 1615 (HD 195429)
20h 34m 44.16s -63° 18' 42.0" P.A. 287.00 sep 0.2 mag 8.07,8.21 Sp A3V dist. 183.82 pc (599.62 l.y.)
| Coord 2000 |
20347-6319 |
|
Discov num |
HU 1615 |
|
Comp |
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Coord arcsec 2000 |
20 34 44.16 -63 18 42.0 |
|
| Date first |
1914 |
|
Date last |
2018 |
|
Obs |
17 |
|
| Pa first |
359 |
|
Pa last |
287.4 |
|
P.A. Now (θ) |
287.4° |
|
| Sep first |
0.4 |
|
Sep last |
0.199 |
|
Sep. Now (ρ) |
0.199" |
|
| Mag pri |
8.07 |
|
Mag sec |
8.21 |
|
delta mag (ΔM) |
0.14 |
|
Spectral class |
A3V (white) |
|
| Pri motion ra |
+031 |
|
Sec motion ra |
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|
| Pri motion dec |
-006 |
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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 195429 |
|
Constellation |
Pavo |
|
SAO |
254818 |
|
HIP |
101543 |
|
| Tycho2 |
9104-01084-1 |
|
Gaia DR2 |
6429702282772505472 |
|
HD |
195429 |
|
GC |
28584 |
|
| CP |
CP-63 4590 |
|
Distance |
183.82 |
|
Distance ly |
599.62 |
|
ORBITAL ELEMENTS
| Period (P) | 357.17y | |
Periastron (T) | 1999.08y | |
Semi-major axis (a) | 0.387a | |
| Eccentricity (e) | 0.851 | |
Inclination (i) | 46° | |
Longitude of periastron (ω) | 263° | |
| Node (Ω) | 257.5° | |
Notes | | |
Reference | Tok2015c | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
187.9 |
0.043 |
| 2001 |
212.7 |
0.053 |
| 2002 |
228.6 |
0.066 |
| 2003 |
239.0 |
0.080 |
| 2004 |
246.5 |
0.093 |
| 2005 |
252.1 |
0.105 |
| 2006 |
256.6 |
0.117 |
| 2007 |
260.3 |
0.127 |
| 2008 |
263.4 |
0.137 |
| 2009 |
266.2 |
0.147 |
| 2010 |
268.6 |
0.156 |
| 2011 |
270.7 |
0.165 |
| 2012 |
272.7 |
0.173 |
| 2013 |
274.4 |
0.181 |
| 2014 |
276.0 |
0.188 |
| 2015 |
277.5 |
0.195 |
| 2016 |
278.9 |
0.202 |
| 2017 |
280.2 |
0.209 |
| 2018 |
281.5 |
0.215 |
| 2019 |
282.6 |
0.221 |
| 2020 |
283.7 |
0.227 |
| 2021 |
284.8 |
0.233 |
| 2022 |
285.7 |
0.239 |
| 2023 |
286.7 |
0.244 |
| 2024 |
287.6 |
0.250 |
| 2025 |
288.5 |
0.255 |
| 2026 |
289.3 |
0.260 |
| 2027 |
290.1 |
0.265 |
| 2028 |
290.9 |
0.270 |
| 2029 |
291.6 |
0.275 |
| 2030 |
292.3 |
0.279 |
|
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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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