20444+1945 CAR 2 (HD 352860)
20h 44m 21.94s +19° 44' 57.9" P.A. 82.00 sep 0.2 mag 10.29,11.60 Sp K6V dist. 21.08 pc (68.76 l.y.)
| Coord 2000 |
20444+1945 |
|
Discov num |
CAR 2 |
|
Comp |
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Coord arcsec 2000 |
20 44 21.94 +19 44 57.9 |
|
| Date first |
2000 |
|
Date last |
2020 |
|
Obs |
44 |
|
| Pa first |
340 |
|
Pa last |
81.8 |
|
P.A. Now (θ) |
55.1° |
|
| Sep first |
0.2 |
|
Sep last |
0.226 |
|
Sep. Now (ρ) |
0.333" |
|
| Mag pri |
10.29 |
|
Mag sec |
11.60 |
|
delta mag (ΔM) |
1.31 |
|
Spectral class |
K6V (yellow-orange) |
|
| Pri motion ra |
-016 |
|
Sec motion ra |
|
|
| Pri motion dec |
-600 |
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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 352860 |
|
Constellation |
Delphinus |
|
HIP |
102357 |
|
Tycho2 |
1642-02848-1 |
|
| Gaia DR2 |
1814070838667074560 |
|
HD |
352860 |
|
GL |
Gl 804 |
|
BD |
BD+19 4499 |
|
| Distance |
21.08 |
|
Distance ly |
68.76 |
|
ORBITAL ELEMENTS
| Period (P) | 14.73y | ± 0.03 |
Periastron (T) | 2004.43y | ± 0.04 |
Semi-major axis (a) | 281.2m | ± 1.7 |
| Eccentricity (e) | 0.6 | ± 0.004 |
Inclination (i) | 129° | ± 0.6 |
Longitude of periastron (ω) | 245.6° | ± 0.7 |
| Node (Ω) | 78.9° | ± 0.5 |
Notes | | |
Reference | Mit2021 | |
| Equinox | | |
Last observation | 2020 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
349.0 |
0.250 |
| 2001 |
331.8 |
0.228 |
| 2002 |
311.3 |
0.209 |
| 2003 |
286.5 |
0.186 |
| 2004 |
247.6 |
0.125 |
| 2005 |
120.1 |
0.108 |
| 2006 |
81.8 |
0.225 |
| 2007 |
67.5 |
0.293 |
| 2008 |
57.5 |
0.328 |
| 2009 |
48.9 |
0.342 |
| 2010 |
40.6 |
0.342 |
| 2011 |
32.0 |
0.331 |
| 2012 |
22.7 |
0.314 |
| 2013 |
12.1 |
0.292 |
| 2014 |
359.6 |
0.267 |
| 2015 |
344.6 |
0.244 |
| 2016 |
326.6 |
0.222 |
| 2017 |
305.2 |
0.204 |
| 2018 |
278.5 |
0.176 |
| 2019 |
225.5 |
0.095 |
| 2020 |
103.1 |
0.144 |
| 2021 |
77.1 |
0.248 |
| 2022 |
64.5 |
0.305 |
| 2023 |
55.1 |
0.333 |
| 2024 |
46.6 |
0.343 |
| 2025 |
38.3 |
0.340 |
| 2026 |
29.6 |
0.327 |
| 2027 |
20.0 |
0.308 |
| 2028 |
8.9 |
0.285 |
| 2029 |
355.8 |
0.261 |
| 2030 |
340.1 |
0.238 |
|
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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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