20310-2907 CHR 185 (HD 195206)
20h 30m 56.79s -29° 06' 45.5" P.A. 266.00 sep 0.0 mag 9.20,6.50 Sp A5V dist. 209.21 pc (682.44 l.y.)
| Coord 2000 |
20310-2907 |
|
Discov num |
CHR 185 |
|
Comp |
|
|
Coord arcsec 2000 |
20 30 56.79 -29 06 45.5 |
|
| Date first |
1991 |
|
Date last |
2020 |
|
Obs |
7 |
|
| Pa first |
297 |
|
Pa last |
266.3 |
|
P.A. Now (θ) |
266.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.029 |
|
Sep. Now (ρ) |
0.029" |
|
| Mag pri |
9.20 |
|
Mag sec |
6.50 |
|
delta mag (ΔM) |
2.7 |
|
Spectral class |
A5V (white) |
|
| Pri motion ra |
+016 |
|
Sec motion ra |
|
|
| Pri motion dec |
+005 |
|
Sec motion dec |
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| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 195206 |
|
Constellation |
Microscopium |
|
SAO |
189374 |
|
HIP |
101211 |
|
| Tycho2 |
6920-01488-1 |
|
Gaia DR2 |
6797016991257105152 |
|
HD |
195206 |
|
HR |
7832 |
|
| GC |
28524 |
|
CD |
CD-2917122 |
|
CP |
CP-29 6318 |
|
Distance |
209.21 |
|
| Distance ly |
682.44 |
|
ORBITAL ELEMENTS
| Period (P) | 100y | |
Periastron (T) | 2022.61y | |
Semi-major axis (a) | 0.16a | |
| Eccentricity (e) | 0.9 | |
Inclination (i) | 119.2° | |
Longitude of periastron (ω) | 348.2° | |
| Node (Ω) | 114.1° | |
Notes | | |
Reference | Tok2021c | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
293.1 |
0.241 |
| 2001 |
292.7 |
0.235 |
| 2002 |
292.4 |
0.230 |
| 2003 |
292.0 |
0.224 |
| 2004 |
291.6 |
0.218 |
| 2005 |
291.2 |
0.212 |
| 2006 |
290.7 |
0.205 |
| 2007 |
290.2 |
0.198 |
| 2008 |
289.7 |
0.190 |
| 2009 |
289.2 |
0.182 |
| 2010 |
288.5 |
0.174 |
| 2011 |
287.9 |
0.165 |
| 2012 |
287.1 |
0.156 |
| 2013 |
286.2 |
0.146 |
| 2014 |
285.2 |
0.135 |
| 2015 |
284.1 |
0.124 |
| 2016 |
282.6 |
0.111 |
| 2017 |
280.9 |
0.098 |
| 2018 |
278.5 |
0.084 |
| 2019 |
275.0 |
0.068 |
| 2020 |
269.2 |
0.050 |
| 2021 |
256.1 |
0.030 |
| 2022 |
191.4 |
0.012 |
| 2023 |
91.0 |
0.016 |
| 2024 |
17.3 |
0.019 |
| 2025 |
346.7 |
0.034 |
| 2026 |
334.8 |
0.049 |
| 2027 |
328.5 |
0.063 |
| 2028 |
324.4 |
0.077 |
| 2029 |
321.6 |
0.089 |
| 2030 |
319.4 |
0.101 |
|
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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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