23191-1328 MCA 74 Aa,Ab
23h 19m 06.66s -13° 27' 30.8" P.A. 356.00 sep 0.2 mag 5.20,6.70 Sp F8IV+F9V dist. 21.12 pc (68.89 l.y.)
| Coord 2000 |
23191-1328 |
|
Discov num |
MCA 74 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
23 19 06.66 -13 27 30.8 |
|
| Date first |
1976 |
|
Date last |
2021 |
|
Obs |
42 |
|
| Pa first |
336 |
|
Pa last |
355.7 |
|
P.A. Now (θ) |
58.9° |
|
| Sep first |
0.2 |
|
Sep last |
0.215 |
|
Sep. Now (ρ) |
0.148" |
|
| Mag pri |
5.20 |
|
Mag sec |
6.70 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
F8IV+F9V (yellow-white/yellow-white) |
|
| Pri motion ra |
+267 |
|
Sec motion ra |
|
|
| Pri motion dec |
-046 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23191-1328 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
165625 |
23 19 07 -13 27 31 |
MCA 74 Aa,Ab |
2021 |
42 |
356 |
0.2 |
5.20 |
6.70 |
1.50 |
Y |
<=== |
| Show |
|
|
23 19 07 -13 27 31 |
STF 2998 AB |
2018 |
247 |
352 |
12.1 |
5.27 |
6.97 |
1.70 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Aquarius |
|
SAO |
165625 |
|
HIP |
115126 |
|
Tycho2 |
5827-01271-1 |
|
| HD |
219834 |
|
HR |
8866 |
|
GC |
32462 |
|
ADS |
16672 |
|
| GL |
Gl 894.2A |
|
BD |
BD-14 6448 |
|
Flamsteed |
94 Aquarii |
|
Flamsteed name |
94 Aqr |
|
| Distance |
21.12 |
|
Distance ly |
68.89 |
|
ORBITAL ELEMENTS
| Period (P) | 6.321y | ± 0.01 |
Periastron (T) | 2012.301y | ± 0.02 |
Semi-major axis (a) | 0.189a | ± 0.002 |
| Eccentricity (e) | 0.173 | ± 0.02 |
Inclination (i) | 44.5° | ± 1 |
Longitude of periastron (ω) | 28.3° | ± 1.5 |
| Node (Ω) | 161.9° | ± 1.5 |
Notes | n | |
Reference | Doc2018f | |
| Equinox | 2000 | |
Last observation | 2014 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
208.4 |
0.129 |
| 2001 |
295.9 |
0.153 |
| 2002 |
337.7 |
0.213 |
| 2003 |
9.0 |
0.202 |
| 2004 |
56.5 |
0.150 |
| 2005 |
125.6 |
0.151 |
| 2006 |
184.2 |
0.146 |
| 2007 |
272.5 |
0.130 |
| 2008 |
327.0 |
0.201 |
| 2009 |
358.4 |
0.213 |
| 2010 |
37.9 |
0.165 |
| 2011 |
104.3 |
0.143 |
| 2012 |
164.6 |
0.158 |
| 2013 |
242.3 |
0.120 |
| 2014 |
314.4 |
0.180 |
| 2015 |
348.6 |
0.218 |
| 2016 |
22.7 |
0.184 |
| 2017 |
81.2 |
0.141 |
| 2018 |
146.7 |
0.159 |
| 2019 |
211.6 |
0.128 |
| 2020 |
298.1 |
0.156 |
| 2021 |
338.8 |
0.214 |
| 2022 |
10.3 |
0.200 |
| 2023 |
58.9 |
0.148 |
| 2024 |
127.9 |
0.152 |
| 2025 |
186.7 |
0.145 |
| 2026 |
275.6 |
0.132 |
| 2027 |
328.3 |
0.203 |
| 2028 |
359.6 |
0.212 |
| 2029 |
39.8 |
0.163 |
| 2030 |
106.9 |
0.144 |
|
|
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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