19054+3803 AG 227
19h 05m 22.05s +38° 03' 20.6" P.A. 31.00 sep 7.1 mag 10.68,11.20
| Coord 2000 |
19054+3803 |
|
Discov num |
AG 227 |
|
Comp |
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Coord arcsec 2000 |
19 05 22.05 +38 03 20.6 |
|
| Date first |
1903 |
|
Date last |
2015 |
|
Obs |
66 |
|
| Pa first |
8 |
|
Pa last |
30.9 |
|
P.A. Now (θ) |
30.9° |
|
| Sep first |
5.7 |
|
Sep last |
7.11 |
|
Sep. Now (ρ) |
7.11" |
|
| Mag pri |
10.68 |
|
Mag sec |
11.20 |
|
delta mag (ΔM) |
0.52 |
|
Spectral class |
|
|
| Pri motion ra |
-020 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
+006 |
|
Sec motion dec |
+005 |
|
| Notes |
O
B
(Orbital solution, Blue magnitudes) |
|
rPM=1.342
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
Gaia DR2 |
2099195953468032000 |
|
ADS |
12031 |
|
ORBITAL ELEMENTS
| Period (P) | 2873.5045y | ± 1329.6073 |
Periastron (T) | 2391.6582y | ± 766.565 |
Semi-major axis (a) | 23.54063a | ± 10.02188 |
| Eccentricity (e) | 0.72958 | ± 0.2007 |
Inclination (i) | 78.888° | ± 6.154 |
Longitude of periastron (ω) | 60.065° | ± 47.149 |
| Node (Ω) | 68.739° | ± 27.847 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
28.0 |
6.863 |
| 2001 |
28.2 |
6.877 |
| 2002 |
28.4 |
6.891 |
| 2003 |
28.6 |
6.905 |
| 2004 |
28.8 |
6.919 |
| 2005 |
29.0 |
6.934 |
| 2006 |
29.2 |
6.948 |
| 2007 |
29.4 |
6.962 |
| 2008 |
29.6 |
6.977 |
| 2009 |
29.7 |
6.991 |
| 2010 |
29.9 |
7.006 |
| 2011 |
30.1 |
7.020 |
| 2012 |
30.3 |
7.035 |
| 2013 |
30.5 |
7.050 |
| 2014 |
30.7 |
7.064 |
| 2015 |
30.9 |
7.079 |
| 2016 |
31.0 |
7.094 |
| 2017 |
31.2 |
7.108 |
| 2018 |
31.4 |
7.123 |
| 2019 |
31.6 |
7.138 |
| 2020 |
31.8 |
7.153 |
| 2021 |
31.9 |
7.168 |
| 2022 |
32.1 |
7.183 |
| 2023 |
32.3 |
7.198 |
| 2024 |
32.5 |
7.213 |
| 2025 |
32.6 |
7.228 |
| 2026 |
32.8 |
7.243 |
| 2027 |
33.0 |
7.258 |
| 2028 |
33.2 |
7.273 |
| 2029 |
33.3 |
7.288 |
| 2030 |
33.5 |
7.303 |
|
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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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