22451-0240 A 2696 BC
22h 45m 04.43s -02° 39' 23.2" P.A. 71.00 sep 0.6 mag 10.31,10.16 Sp F8 dist. 12.53 pc (40.87 l.y.)
| Coord 2000 |
22451-0240 |
|
Discov num |
A 2696 |
|
Comp |
BC |
|
Coord arcsec 2000 |
22 45 04.43 -02 39 23.2 |
|
| Date first |
1913 |
|
Date last |
2019 |
|
Obs |
53 |
|
| Pa first |
262 |
|
Pa last |
71.4 |
|
P.A. Now (θ) |
71.4° |
|
| Sep first |
0.2 |
|
Sep last |
0.616 |
|
Sep. Now (ρ) |
0.616" |
|
| Mag pri |
10.31 |
|
Mag sec |
10.16 |
|
delta mag (ΔM) |
0.15 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
+017 |
|
| Pri motion dec |
-077 |
|
Sec motion dec |
-077 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
22451-0240 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
22 45 05 -02 39 42 |
STF 2938 A,BC |
2016 |
47 |
342 |
20.1 |
9.41 |
9.55 |
0.14 |
|
|
| Show |
|
146293 |
22 45 04 -02 39 23 |
A 2696 BC |
2019 |
53 |
71 |
0.6 |
10.31 |
10.16 |
0.15 |
Y |
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
SAO |
146293 |
|
HIP |
112325 |
|
Tycho2 |
5237-01613-1 |
|
| Gaia DR2 |
2649536913693752960 |
|
HD |
215415 |
|
GC |
31742 |
|
ADS |
16235 |
|
| DM |
BD-03 5501 |
|
Distance |
12.53 |
|
Distance ly |
40.87 |
|
ORBITAL ELEMENTS
| Period (P) | 302.1y | |
Periastron (T) | 1919.18y | |
Semi-major axis (a) | 0.481a | |
| Eccentricity (e) | 0.518 | |
Inclination (i) | 159° | |
Longitude of periastron (ω) | 300.5° | |
| Node (Ω) | 172.1° | |
Notes | n | |
Reference | Hrt2014b | |
| Equinox | 2000 | |
Last observation | 2008 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
86.9 |
0.571 |
| 2001 |
86.2 |
0.574 |
| 2002 |
85.5 |
0.577 |
| 2003 |
84.9 |
0.580 |
| 2004 |
84.2 |
0.584 |
| 2005 |
83.6 |
0.587 |
| 2006 |
83.0 |
0.589 |
| 2007 |
82.3 |
0.592 |
| 2008 |
81.7 |
0.595 |
| 2009 |
81.1 |
0.598 |
| 2010 |
80.5 |
0.601 |
| 2011 |
79.9 |
0.604 |
| 2012 |
79.3 |
0.606 |
| 2013 |
78.7 |
0.609 |
| 2014 |
78.1 |
0.612 |
| 2015 |
77.5 |
0.614 |
| 2016 |
76.9 |
0.617 |
| 2017 |
76.3 |
0.619 |
| 2018 |
75.8 |
0.622 |
| 2019 |
75.2 |
0.624 |
| 2020 |
74.6 |
0.626 |
| 2021 |
74.1 |
0.629 |
| 2022 |
73.5 |
0.631 |
| 2023 |
73.0 |
0.633 |
| 2024 |
72.4 |
0.636 |
| 2025 |
71.9 |
0.638 |
| 2026 |
71.3 |
0.640 |
| 2027 |
70.8 |
0.642 |
| 2028 |
70.3 |
0.644 |
| 2029 |
69.7 |
0.646 |
| 2030 |
69.2 |
0.648 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
