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
| 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) |
286.9° |
|
| Sep first |
0.1 |
|
Sep last |
0.37 |
|
Sep. Now (ρ) |
0.303" |
|
| 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 |
2014 |
54 |
312 |
48.9 |
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 |
|
|
23 15 51 -09 04 43 |
BU 1220 BC |
2021 |
41 |
107 |
0.4 |
10.50 |
10.70 |
0.20 |
Y |
<=== |
| Show |
|
|
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 |
|
Tycho2 |
5821-01486-1 |
|
HD |
219430 |
|
ADS |
16633 |
|
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) | 284.1° | |
Notes | n | |
Reference | Zir2007 | |
| Equinox | 2000 | |
Last observation | 1986 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
282.9 |
0.618 |
| 2001 |
283.0 |
0.622 |
| 2002 |
283.1 |
0.624 |
| 2003 |
283.3 |
0.625 |
| 2004 |
283.4 |
0.625 |
| 2005 |
283.5 |
0.624 |
| 2006 |
283.6 |
0.621 |
| 2007 |
283.7 |
0.616 |
| 2008 |
283.8 |
0.610 |
| 2009 |
284.0 |
0.603 |
| 2010 |
284.1 |
0.594 |
| 2011 |
284.2 |
0.583 |
| 2012 |
284.3 |
0.571 |
| 2013 |
284.5 |
0.557 |
| 2014 |
284.6 |
0.541 |
| 2015 |
284.8 |
0.523 |
| 2016 |
284.9 |
0.503 |
| 2017 |
285.1 |
0.481 |
| 2018 |
285.3 |
0.457 |
| 2019 |
285.6 |
0.431 |
| 2020 |
285.8 |
0.403 |
| 2021 |
286.1 |
0.372 |
| 2022 |
286.5 |
0.338 |
| 2023 |
286.9 |
0.303 |
| 2024 |
287.4 |
0.265 |
| 2025 |
288.2 |
0.224 |
| 2026 |
289.3 |
0.181 |
| 2027 |
291.1 |
0.136 |
| 2028 |
294.7 |
0.089 |
| 2029 |
306.6 |
0.042 |
| 2030 |
48.5 |
0.019 |
|
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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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