19264+4928 YSC 134 (HD 183255)
19h 26m 25.98s +49° 27' 55.1" P.A. 50.00 sep 0.0 mag 8.40,9.40 Sp K2V+K4.5V dist. 25.01 pc (81.58 l.y.)
| Coord 2000 |
19264+4928 |
|
Discov num |
YSC 134 |
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Comp |
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Coord arcsec 2000 |
19 26 25.98 +49 27 55.1 |
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| Date first |
2008 |
|
Date last |
2015 |
|
Obs |
15 |
|
| Pa first |
202 |
|
Pa last |
49.6 |
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P.A. Now (θ) |
49.6° |
|
| Sep first |
0.0 |
|
Sep last |
0.024 |
|
Sep. Now (ρ) |
0.024" |
|
| Mag pri |
8.40 |
|
Mag sec |
9.40 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
K2V+K4.5V (yellow-orange/yellow-orange) |
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| Pri motion ra |
+457 |
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Sec motion ra |
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| Pri motion dec |
+714 |
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Sec motion dec |
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| Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 183255 |
|
Constellation |
Cygnus |
|
HIP |
95575 |
|
Tycho2 |
3551-01452-1 |
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| HD |
183255 |
|
GL |
GJ 1237 |
|
BD |
BD+49 3009 |
|
Distance |
25.01 |
|
| Distance ly |
81.58 |
|
ORBITAL ELEMENTS
| Period (P) | 0.45678y | ± 0.000008 |
Periastron (T) | 2012.44y | ± 0.000257 |
Semi-major axis (a) | 0.0273a | ± 0.0005 |
| Eccentricity (e) | 0.13698 | ± 0.00031 |
Inclination (i) | 136° | ± 1 |
Longitude of periastron (ω) | 243.2° | ± 0.016 |
| Node (Ω) | 23.5° | ± 1 |
Notes | n | |
Reference | Doc2018h | |
| Equinox | 2000 | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
231.8 |
0.025 |
| 2001 |
170.7 |
0.021 |
| 2002 |
65.3 |
0.021 |
| 2003 |
12.1 |
0.029 |
| 2004 |
321.0 |
0.024 |
| 2005 |
249.2 |
0.024 |
| 2006 |
191.0 |
0.024 |
| 2007 |
92.3 |
0.018 |
| 2008 |
24.4 |
0.028 |
| 2009 |
338.1 |
0.026 |
| 2010 |
268.9 |
0.022 |
| 2011 |
207.7 |
0.025 |
| 2012 |
126.3 |
0.017 |
| 2013 |
38.0 |
0.026 |
| 2014 |
352.7 |
0.027 |
| 2015 |
290.2 |
0.022 |
| 2016 |
223.4 |
0.025 |
| 2017 |
157.7 |
0.019 |
| 2018 |
54.6 |
0.023 |
| 2019 |
5.7 |
0.029 |
| 2020 |
311.0 |
0.023 |
| 2021 |
240.0 |
0.024 |
| 2022 |
181.2 |
0.023 |
| 2023 |
77.2 |
0.020 |
| 2024 |
18.0 |
0.029 |
| 2025 |
329.6 |
0.024 |
| 2026 |
258.5 |
0.023 |
| 2027 |
199.3 |
0.025 |
| 2028 |
108.3 |
0.017 |
| 2029 |
30.7 |
0.028 |
| 2030 |
345.4 |
0.027 |
|
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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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