23401+1258 HU 1325
23h 40m 06.04s +12° 58' 04.5" P.A. 36.00 sep 0.9 mag 9.81,10.01 Sp G5 dist. 64.06 pc (208.96 l.y.)
| Coord 2000 |
23401+1258 |
|
Discov num |
HU 1325 |
|
Comp |
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Coord arcsec 2000 |
23 40 06.04 +12 58 04.5 |
|
| Date first |
1904 |
|
Date last |
2016 |
|
Obs |
45 |
|
| Pa first |
184 |
|
Pa last |
36.4 |
|
P.A. Now (θ) |
36.4° |
|
| Sep first |
0.7 |
|
Sep last |
0.87 |
|
Sep. Now (ρ) |
0.87" |
|
| Mag pri |
9.81 |
|
Mag sec |
10.01 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-027 |
|
Sec motion ra |
-027 |
|
| Pri motion dec |
-148 |
|
Sec motion dec |
-148 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
HIP |
116787 |
|
Tycho2 |
1176-01198-1 |
|
Gaia DR2 |
2764808785038362752 |
|
| ADS |
16914 |
|
BD |
BD+12 5013 |
|
Distance |
64.06 |
|
Distance ly |
208.96 |
|
ORBITAL ELEMENTS
| Period (P) | 318.8y | |
Periastron (T) | 1953.51y | |
Semi-major axis (a) | 0.86a | |
| Eccentricity (e) | 0.423 | |
Inclination (i) | 17.9° | |
Longitude of periastron (ω) | 99.9° | |
| Node (Ω) | 173.5° | |
Notes | | |
Reference | Sca2003a | |
| Equinox | 2000 | |
Last observation | 1995 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
14.1 |
0.767 |
| 2001 |
15.3 |
0.774 |
| 2002 |
16.5 |
0.781 |
| 2003 |
17.7 |
0.788 |
| 2004 |
18.8 |
0.795 |
| 2005 |
19.9 |
0.802 |
| 2006 |
21.1 |
0.809 |
| 2007 |
22.2 |
0.816 |
| 2008 |
23.2 |
0.822 |
| 2009 |
24.3 |
0.829 |
| 2010 |
25.3 |
0.835 |
| 2011 |
26.3 |
0.842 |
| 2012 |
27.4 |
0.848 |
| 2013 |
28.3 |
0.855 |
| 2014 |
29.3 |
0.861 |
| 2015 |
30.3 |
0.867 |
| 2016 |
31.2 |
0.873 |
| 2017 |
32.2 |
0.879 |
| 2018 |
33.1 |
0.885 |
| 2019 |
34.0 |
0.891 |
| 2020 |
34.9 |
0.897 |
| 2021 |
35.8 |
0.903 |
| 2022 |
36.7 |
0.908 |
| 2023 |
37.6 |
0.914 |
| 2024 |
38.4 |
0.919 |
| 2025 |
39.3 |
0.925 |
| 2026 |
40.1 |
0.930 |
| 2027 |
40.9 |
0.936 |
| 2028 |
41.7 |
0.941 |
| 2029 |
42.6 |
0.946 |
| 2030 |
43.4 |
0.951 |
|
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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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