19514+4044 COU 2530 AB
19h 51m 24.76s +40° 44' 07.1" P.A. 152.00 sep 0.2 mag 8.91,9.38 Sp G5 dist. 73.96 pc (241.26 l.y.)
| Coord 2000 |
19514+4044 |
|
Discov num |
COU2530 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 51 24.76 +40 44 07.1 |
|
| Date first |
1988 |
|
Date last |
2018 |
|
Obs |
15 |
|
| Pa first |
342 |
|
Pa last |
151.8 |
|
P.A. Now (θ) |
151.8° |
|
| Sep first |
0.3 |
|
Sep last |
0.162 |
|
Sep. Now (ρ) |
0.162" |
|
| Mag pri |
8.91 |
|
Mag sec |
9.38 |
|
delta mag (ΔM) |
0.47 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
+046 |
|
Sec motion ra |
|
|
| Pri motion dec |
+026 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
19514+4044 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
48906 |
19 51 25 +40 44 07 |
COU 2530 AB |
2018 |
15 |
152 |
0.2 |
8.91 |
9.38 |
0.47 |
Y |
<=== |
| Show |
V2514 Cyg |
48906 |
19 51 25 +40 44 07 |
ORL 6 AC |
2015 |
3 |
235 |
4.4 |
6.75 |
7.67 |
0.92 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
V2514 Cyg |
|
Constellation |
Cygnus |
|
SAO |
48906 |
|
HIP |
97706 |
|
| Tycho2 |
3141-02210-1 |
|
Gaia DR2 |
2073839531715609472 |
|
HD |
226195 |
|
BD |
BD+40 3908 |
|
| Distance |
73.96 |
|
Distance ly |
241.26 |
|
ORBITAL ELEMENTS
| Period (P) | 55y | ± 4.8 |
Periastron (T) | 2022.9y | ± 1 |
Semi-major axis (a) | 0.25a | ± 0.007 |
| Eccentricity (e) | 0.4 | |
Inclination (i) | 74.2° | ± 1.3 |
Longitude of periastron (ω) | 38.4° | ± 8.6 |
| Node (Ω) | 159.6° | ± 1.5 |
Notes | | |
Reference | Tok2019e | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
359.2 |
0.221 |
| 2001 |
1.5 |
0.205 |
| 2002 |
4.1 |
0.189 |
| 2003 |
7.3 |
0.172 |
| 2004 |
11.1 |
0.155 |
| 2005 |
15.9 |
0.138 |
| 2006 |
22.0 |
0.121 |
| 2007 |
30.1 |
0.105 |
| 2008 |
40.8 |
0.091 |
| 2009 |
54.8 |
0.081 |
| 2010 |
71.7 |
0.076 |
| 2011 |
89.4 |
0.077 |
| 2012 |
105.2 |
0.085 |
| 2013 |
117.8 |
0.096 |
| 2014 |
127.5 |
0.110 |
| 2015 |
134.9 |
0.125 |
| 2016 |
140.8 |
0.138 |
| 2017 |
145.7 |
0.150 |
| 2018 |
150.0 |
0.159 |
| 2019 |
153.9 |
0.164 |
| 2020 |
157.7 |
0.163 |
| 2021 |
161.7 |
0.155 |
| 2022 |
166.4 |
0.140 |
| 2023 |
172.5 |
0.118 |
| 2024 |
182.0 |
0.091 |
| 2025 |
200.0 |
0.063 |
| 2026 |
237.4 |
0.046 |
| 2027 |
281.1 |
0.055 |
| 2028 |
304.1 |
0.082 |
| 2029 |
315.1 |
0.113 |
| 2030 |
321.5 |
0.143 |
| 2031 |
325.7 |
0.171 |
| 2032 |
328.7 |
0.197 |
| 2033 |
331.0 |
0.220 |
| 2034 |
333.0 |
0.240 |
| 2035 |
334.6 |
0.258 |
| 2036 |
336.1 |
0.274 |
| 2037 |
337.4 |
0.287 |
| 2038 |
338.5 |
0.298 |
| 2039 |
339.7 |
0.306 |
| 2040 |
340.7 |
0.313 |
| 2041 |
341.8 |
0.318 |
| 2042 |
342.8 |
0.320 |
| 2043 |
343.8 |
0.321 |
| 2044 |
344.7 |
0.321 |
| 2045 |
345.7 |
0.318 |
| 2046 |
346.8 |
0.314 |
| 2047 |
347.8 |
0.309 |
| 2048 |
348.9 |
0.302 |
| 2049 |
350.0 |
0.294 |
| 2050 |
351.3 |
0.285 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
