23159-0905 BU 1220 BC
23h 15m 51.01s -09° 04' 42.8" P.A. 107.00 sep 0.4 mag 10.50,10.70 Sp K3 dist. 45.93 pc (149.82 l.y.)
| Coord 2000 |
23159-0905 |
|
Discov num |
BU 1220 |
|
Comp |
BC |
|
Coord arcsec 2000 |
23 15 51.01 -09 04 42.8 |
|
| Date first |
1889 |
|
Date last |
2021 |
|
Obs |
41 |
|
| Pa first |
267 |
|
Pa last |
107.1 |
|
P.A. Now (θ) |
288.2° |
|
| Sep first |
0.1 |
|
Sep last |
0.37 |
|
Sep. Now (ρ) |
0.224" |
|
| Mag pri |
10.50 |
|
Mag sec |
10.70 |
|
delta mag (ΔM) |
0.2 |
|
Spectral class |
K3 (yellow-orange) |
|
| Pri motion ra |
+383 |
|
Sec motion ra |
|
|
| Pri motion dec |
-037 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23159-0905 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Psi1 Aqr |
146598 |
23 15 54 -09 05 16 |
STFB 12 A,BC |
2016 |
55 |
312 |
49.3 |
4.36 |
9.88 |
5.52 |
|
|
| Show |
|
146598 |
23 15 54 -09 05 16 |
BU 1220 AD |
2008 |
9 |
273 |
110.1 |
4.36 |
13.49 |
9.13 |
|
|
| Show |
|
146596 |
23 15 51 -09 04 43 |
BU 1220 BC |
2021 |
41 |
107 |
0.4 |
10.50 |
10.70 |
0.20 |
Y |
<=== |
| Show |
|
146596 |
23 15 51 -09 04 43 |
BU 1220 BC,E |
2008 |
9 |
294 |
42.3 |
9.88 |
14.30 |
4.42 |
|
|
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
SAO |
146596 |
|
HIP |
114855 |
|
Tycho2 |
5821-01486-1 |
|
| HD |
219430 |
|
HR |
8841 |
|
GC |
32374 |
|
ADS |
16633 |
|
| BD |
BD-09 6156 |
|
Bayer |
Psi 1 Aquarii |
|
Bayer name |
Psi1 Aqr |
|
FK5 |
1608 |
|
| Distance |
45.93 |
|
Distance ly |
149.82 |
|
Bayer greek |
ψ1 Aqr |
|
ORBITAL ELEMENTS
| Period (P) | 83.61y | |
Periastron (T) | 1950.98y | |
Semi-major axis (a) | 0.469a | |
| Eccentricity (e) | 0.448 | |
Inclination (i) | 87° | |
Longitude of periastron (ω) | 145° | |
| Node (Ω) | ° | |
Notes | n | |
Reference | Zir2007 | |
| Equinox | 2000 | |
Last observation | 1986 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
358.8 |
0.618 |
| 2001 |
358.9 |
0.622 |
| 2002 |
359.0 |
0.624 |
| 2003 |
359.2 |
0.625 |
| 2004 |
359.3 |
0.625 |
| 2005 |
359.4 |
0.624 |
| 2006 |
359.5 |
0.621 |
| 2007 |
359.6 |
0.616 |
| 2008 |
359.7 |
0.610 |
| 2009 |
359.9 |
0.603 |
| 2010 |
360.0 |
0.594 |
| 2011 |
0.1 |
0.583 |
| 2012 |
0.2 |
0.571 |
| 2013 |
0.4 |
0.557 |
| 2014 |
0.5 |
0.541 |
| 2015 |
0.7 |
0.523 |
| 2016 |
0.8 |
0.503 |
| 2017 |
1.0 |
0.481 |
| 2018 |
1.2 |
0.457 |
| 2019 |
1.5 |
0.431 |
| 2020 |
1.7 |
0.403 |
| 2021 |
2.0 |
0.372 |
| 2022 |
2.4 |
0.338 |
| 2023 |
2.8 |
0.303 |
| 2024 |
3.3 |
0.265 |
| 2025 |
4.1 |
0.224 |
| 2026 |
5.2 |
0.181 |
| 2027 |
7.0 |
0.136 |
| 2028 |
10.6 |
0.089 |
| 2029 |
22.5 |
0.042 |
| 2030 |
124.4 |
0.019 |
| 2031 |
166.4 |
0.061 |
| 2032 |
173.1 |
0.108 |
| 2033 |
175.8 |
0.152 |
| 2034 |
177.3 |
0.192 |
| 2035 |
178.3 |
0.225 |
| 2036 |
179.1 |
0.251 |
| 2037 |
179.7 |
0.269 |
| 2038 |
180.3 |
0.279 |
| 2039 |
180.9 |
0.281 |
| 2040 |
181.4 |
0.277 |
| 2041 |
182.0 |
0.268 |
| 2042 |
182.7 |
0.254 |
| 2043 |
183.4 |
0.236 |
| 2044 |
184.3 |
0.215 |
| 2045 |
185.4 |
0.192 |
| 2046 |
186.7 |
0.167 |
| 2047 |
188.6 |
0.141 |
| 2048 |
191.4 |
0.114 |
| 2049 |
195.8 |
0.087 |
| 2050 |
204.3 |
0.060 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
