23328-1651 VOU 28 BC
23h 32m 46.58s -16° 45' 08.4" P.A. 357.00 sep 0.7 mag 11.14,11.17 Sp M3Ve dist. 193.8 pc (632.18 l.y.)
| Coord 2000 |
23328-1651 |
|
Discov num |
VOU 28 |
|
Comp |
BC |
|
Coord arcsec 2000 |
23 32 46.58 -16 45 08.4 |
|
| Date first |
1934 |
|
Date last |
2021 |
|
Obs |
16 |
|
| Pa first |
358 |
|
Pa last |
357 |
|
P.A. Now (θ) |
357° |
|
| Sep first |
0.5 |
|
Sep last |
0.66 |
|
Sep. Now (ρ) |
0.66" |
|
| Mag pri |
11.14 |
|
Mag sec |
11.17 |
|
delta mag (ΔM) |
0.03 |
|
Spectral class |
M3Ve (red) |
|
| Pri motion ra |
+349 |
|
Sec motion ra |
|
|
| Pri motion dec |
-218 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23328-1651 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 221503 |
165756 |
23 32 49 -16 50 44 |
LDS 816 A,BC |
2010 |
11 |
353 |
338.2 |
8.76 |
10.39 |
1.63 |
|
|
| Show |
|
165756 |
23 32 49 -16 50 44 |
LAF 73 AD |
2005 |
1 |
234 |
9.0 |
5.60 |
21.20 |
15.60 |
|
|
| Show |
|
165756 |
23 32 49 -16 50 44 |
SHY 110 AE |
2016 |
5 |
190 |
999.9 |
8.76 |
11.06 |
2.30 |
|
|
| Show |
|
|
23 32 47 -16 45 08 |
VOU 28 BC |
2021 |
16 |
357 |
0.7 |
11.14 |
11.17 |
0.03 |
Y |
<=== |
Quintuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
HIP |
116191 |
|
Tycho2 |
6403-01115-1 |
|
GL |
Gl 897A |
|
| BD |
BD-17 6768 |
|
Distance |
193.8 |
|
Distance ly |
632.18 |
|
ORBITAL ELEMENTS
| Period (P) | 44.28y | ± 0.35 |
Periastron (T) | 2025.57y | ± 0.1 |
Semi-major axis (a) | 0.823a | ± 0.002 |
| Eccentricity (e) | 0.234 | ± 0.003 |
Inclination (i) | 89.4° | ± 0.5 |
Longitude of periastron (ω) | 243.6° | ± 1.5 |
| Node (Ω) | 176.7° | ± 0.5 |
Notes | n | |
Reference | Doc2022b | |
| Equinox | | |
Last observation | 2021 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
177.3 |
0.700 |
| 2001 |
177.4 |
0.635 |
| 2002 |
177.6 |
0.564 |
| 2003 |
177.8 |
0.487 |
| 2004 |
178.1 |
0.404 |
| 2005 |
178.5 |
0.317 |
| 2006 |
179.3 |
0.227 |
| 2007 |
181.1 |
0.134 |
| 2008 |
191.6 |
0.040 |
| 2009 |
346.4 |
0.057 |
| 2010 |
352.9 |
0.150 |
| 2011 |
354.4 |
0.243 |
| 2012 |
355.1 |
0.332 |
| 2013 |
355.5 |
0.416 |
| 2014 |
355.8 |
0.494 |
| 2015 |
356.0 |
0.564 |
| 2016 |
356.2 |
0.623 |
| 2017 |
356.3 |
0.670 |
| 2018 |
356.4 |
0.703 |
| 2019 |
356.5 |
0.718 |
| 2020 |
356.6 |
0.714 |
| 2021 |
356.8 |
0.688 |
| 2022 |
356.9 |
0.639 |
| 2023 |
357.0 |
0.566 |
| 2024 |
357.3 |
0.470 |
| 2025 |
357.6 |
0.354 |
| 2026 |
358.3 |
0.222 |
| 2027 |
1.4 |
0.081 |
| 2028 |
170.7 |
0.065 |
| 2029 |
174.9 |
0.207 |
| 2030 |
175.7 |
0.342 |
|
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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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