22288-0001 EBE 1 Aa,Ab
22h 28m 49.81s -00° 01' 12.2" P.A. 223.00 sep 0.6 mag 4.34,11.30 Sp F3IV-V dist. 28.17 pc (91.89 l.y.)
| Coord 2000 |
22288-0001 |
|
Discov num |
EBE 1 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
22 28 49.81 -00 01 12.2 |
|
| Date first |
2009 |
|
Date last |
2023 |
|
Obs |
18 |
|
| Pa first |
188 |
|
Pa last |
222.9 |
|
P.A. Now (θ) |
217.6° |
|
| Sep first |
0.4 |
|
Sep last |
0.646 |
|
Sep. Now (ρ) |
0.669" |
|
| Mag pri |
4.34 |
|
Mag sec |
11.30 |
|
delta mag (ΔM) |
6.96 |
|
Spectral class |
F3IV-V (yellow-white) |
|
| Pri motion ra |
+195 |
|
Sec motion ra |
+176 |
|
| Pri motion dec |
+034 |
|
Sec motion dec |
+013 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.143 (< 0.3, Physical double)
This double is physical.
22288-0001 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
146107 |
22 28 50 -00 01 12 |
EBE 1 Aa,Ab |
2023 |
18 |
223 |
0.6 |
4.34 |
11.30 |
6.96 |
Y |
<=== |
| Show |
Zet1 Aqr |
146107 |
22 28 50 -00 01 12 |
STF 2909 AB |
2024 |
1202 |
154 |
2.3 |
4.34 |
4.49 |
0.15 |
Y |
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
SAO |
146108 |
|
HIP |
110960 |
|
Tycho2 |
5226-01605-1 |
|
| HD |
213052 |
|
HR |
8558 |
|
GC |
31398 |
|
ADS |
15971 |
|
| BD |
BD-00 4365 |
|
Bayer |
Zeta 1 Aquarii |
|
Bayer name |
Zet1 Aqr |
|
Flamsteed |
55 Aquarii |
|
| Flamsteed name |
55 Aqr |
|
Distance |
28.17 |
|
Distance ly |
91.89 |
|
Bayer greek |
ζ1 Aqr |
|
ORBITAL ELEMENTS
| Period (P) | 25.0866y | ± 0.3006 |
Periastron (T) | 2004.4333y | ± 0.6225 |
Semi-major axis (a) | 0.40878a | ± 0.02897 |
| Eccentricity (e) | 0.73025 | ± 0.04198 |
Inclination (i) | 64.677° | ± 4.092 |
Longitude of periastron (ω) | 343.108° | ± 17.983 |
| Node (Ω) | 34.903° | ± 6.707 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
222.5 |
0.464 |
| 2001 |
226.4 |
0.382 |
| 2002 |
232.9 |
0.279 |
| 2003 |
249.1 |
0.152 |
| 2004 |
347.4 |
0.071 |
| 2005 |
59.1 |
0.109 |
| 2006 |
129.8 |
0.107 |
| 2007 |
166.6 |
0.185 |
| 2008 |
180.5 |
0.272 |
| 2009 |
187.8 |
0.353 |
| 2010 |
192.4 |
0.424 |
| 2011 |
195.8 |
0.486 |
| 2012 |
198.5 |
0.539 |
| 2013 |
200.7 |
0.583 |
| 2014 |
202.7 |
0.620 |
| 2015 |
204.4 |
0.649 |
| 2016 |
206.0 |
0.669 |
| 2017 |
207.5 |
0.683 |
| 2018 |
209.0 |
0.688 |
| 2019 |
210.5 |
0.685 |
| 2020 |
212.0 |
0.675 |
| 2021 |
213.6 |
0.655 |
| 2022 |
215.3 |
0.626 |
| 2023 |
217.2 |
0.586 |
| 2024 |
219.4 |
0.535 |
| 2025 |
222.2 |
0.471 |
| 2026 |
226.0 |
0.390 |
| 2027 |
232.2 |
0.289 |
| 2028 |
246.6 |
0.164 |
| 2029 |
334.5 |
0.067 |
| 2030 |
54.1 |
0.111 |
| 2031 |
124.4 |
0.103 |
| 2032 |
164.8 |
0.177 |
| 2033 |
179.7 |
0.265 |
| 2034 |
187.3 |
0.346 |
| 2035 |
192.1 |
0.418 |
| 2036 |
195.6 |
0.481 |
| 2037 |
198.3 |
0.534 |
| 2038 |
200.5 |
0.580 |
| 2039 |
202.5 |
0.617 |
| 2040 |
204.3 |
0.646 |
| 2041 |
205.9 |
0.668 |
| 2042 |
207.4 |
0.682 |
| 2043 |
208.9 |
0.688 |
| 2044 |
210.4 |
0.686 |
| 2045 |
211.9 |
0.676 |
| 2046 |
213.5 |
0.657 |
| 2047 |
215.2 |
0.629 |
| 2048 |
217.0 |
0.590 |
| 2049 |
219.2 |
0.540 |
| 2050 |
221.9 |
0.477 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
