22266-1645 SHJ 345 AB (53 Aqr)
22h 26m 34.30s -16° 44' 31.9" P.A. 98.00 sep 1.3 mag 6.29,6.39 Sp G0V+G0V dist. 20.2 pc (65.89 l.y.)
| Coord 2000 |
22266-1645 |
|
Discov num |
SHJ 345 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 26 34.30 -16 44 31.9 |
|
| Date first |
1800 |
|
Date last |
2021 |
|
Obs |
273 |
|
| Pa first |
291 |
|
Pa last |
97.8 |
|
P.A. Now (θ) |
97.8° |
|
| Sep first |
12.7 |
|
Sep last |
1.26 |
|
Sep. Now (ρ) |
1.26" |
|
| Mag pri |
6.29 |
|
Mag sec |
6.39 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
G0V+G0V (yellow/yellow) |
|
| Pri motion ra |
+251 |
|
Sec motion ra |
+251 |
|
| Pri motion dec |
-021 |
|
Sec motion dec |
-021 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
22266-1645 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
53 Aqr |
165077 |
22 26 34 -16 44 32 |
SHJ 345 AB |
2021 |
273 |
98 |
1.3 |
6.29 |
6.39 |
0.10 |
Y |
<=== |
| Show |
|
165077 |
22 26 34 -16 44 30 |
SHJ 345 BC |
1999 |
3 |
317 |
63.6 |
6.39 |
12.84 |
6.45 |
|
|
| Show |
|
|
22 26 31 -16 43 44 |
BU 1307 CD |
2015 |
2 |
104 |
2.4 |
12.84 |
13.80 |
0.96 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
53 Aqr |
|
Constellation |
Aquarius |
|
SAO |
165077 |
|
HIP |
110778 |
|
| Tycho2 |
6385-01461-1 |
|
Gaia DR2 |
2595463996992115840 |
|
HD |
212697 |
|
HR |
8544 |
|
| GC |
31348 |
|
ADS |
15934 |
|
GL |
Gl 859B |
|
BD |
BD-17 6520 |
|
| Flamsteed |
53 Aquarii |
|
Flamsteed name |
53 Aqr |
|
Distance |
20.2 |
|
Distance ly |
65.89 |
|
ORBITAL ELEMENTS
| Period (P) | 3500y | |
Periastron (T) | 2020.45y | |
Semi-major axis (a) | 14.558a | |
| Eccentricity (e) | 0.913 | |
Inclination (i) | 34.3° | |
Longitude of periastron (ω) | 158.4° | |
| Node (Ω) | 289.1° | |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
6.3 |
1.720 |
| 2001 |
8.8 |
1.667 |
| 2002 |
11.5 |
1.616 |
| 2003 |
14.4 |
1.567 |
| 2004 |
17.5 |
1.520 |
| 2005 |
20.8 |
1.475 |
| 2006 |
24.3 |
1.433 |
| 2007 |
28.0 |
1.393 |
| 2008 |
31.8 |
1.357 |
| 2009 |
35.9 |
1.324 |
| 2010 |
40.2 |
1.295 |
| 2011 |
44.7 |
1.270 |
| 2012 |
49.3 |
1.249 |
| 2013 |
54.1 |
1.233 |
| 2014 |
59.0 |
1.220 |
| 2015 |
64.0 |
1.213 |
| 2016 |
69.0 |
1.209 |
| 2017 |
74.0 |
1.210 |
| 2018 |
79.0 |
1.214 |
| 2019 |
83.9 |
1.222 |
| 2020 |
88.8 |
1.233 |
| 2021 |
93.6 |
1.247 |
| 2022 |
98.3 |
1.263 |
| 2023 |
102.8 |
1.281 |
| 2024 |
107.2 |
1.301 |
| 2025 |
111.5 |
1.323 |
| 2026 |
115.6 |
1.346 |
| 2027 |
119.6 |
1.370 |
| 2028 |
123.4 |
1.396 |
| 2029 |
127.1 |
1.423 |
| 2030 |
130.7 |
1.450 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
