08391-5557 HU 1443 AB (HD 74045)
08h 39m 04.06s -55° 56' 32.6" P.A. 16.00 sep 0.9 mag 7.75,8.88 Sp F3/5V dist. 185.53 pc (605.2 l.y.)
| Coord 2000 |
08391-5557 |
|
Discov num |
HU 1443 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 39 04.06 -55 56 32.6 |
|
| Date first |
1913 |
|
Date last |
2023 |
|
Obs |
32 |
|
| Pa first |
80 |
|
Pa last |
16.4 |
|
P.A. Now (θ) |
16.2° |
|
| Sep first |
0.6 |
|
Sep last |
0.895 |
|
Sep. Now (ρ) |
0.89" |
|
| Mag pri |
7.75 |
|
Mag sec |
8.88 |
|
delta mag (ΔM) |
1.13 |
|
Spectral class |
F3/5V (yellow-white) |
|
| Pri motion ra |
-024 |
|
Sec motion ra |
-024 |
|
| Pri motion dec |
+008 |
|
Sec motion dec |
+008 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
08391-5557 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 74045 |
236148 |
08 39 04 -55 56 33 |
HU 1443 AB |
2023 |
32 |
16 |
0.9 |
7.75 |
8.88 |
1.13 |
Y |
<=== |
| Show |
|
236148 |
08 39 04 -55 56 32 |
TOK 356 BC |
2023 |
17 |
13 |
0.1 |
8.88 |
10.50 |
1.62 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 74045 |
|
Constellation |
Carina |
|
SAO |
236148 |
|
HIP |
42424 |
|
| Tycho2 |
8572-01491-1 |
|
Gaia DR2 |
5316861584780948736 |
|
HD |
74045 |
|
GC |
11911 |
|
| CP |
CP-55 1660 |
|
Distance |
185.53 |
|
Distance ly |
605.2 |
|
ORBITAL ELEMENTS
| Period (P) | 1446.9632y | ± 641.8945 |
Periastron (T) | 2131.1649y | ± 285.2183 |
Semi-major axis (a) | 3.98276a | ± 2.09666 |
| Eccentricity (e) | 0.84541 | ± 0.12419 |
Inclination (i) | 99.288° | ± 5.943 |
Longitude of periastron (ω) | 243.333° | ± 44.555 |
| Node (Ω) | 164.835° | ± 35.876 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
24.1 |
0.855 |
| 2001 |
23.7 |
0.859 |
| 2002 |
23.2 |
0.863 |
| 2003 |
22.8 |
0.866 |
| 2004 |
22.3 |
0.870 |
| 2005 |
21.9 |
0.874 |
| 2006 |
21.4 |
0.878 |
| 2007 |
21.0 |
0.882 |
| 2008 |
20.6 |
0.886 |
| 2009 |
20.1 |
0.890 |
| 2010 |
19.7 |
0.894 |
| 2011 |
19.3 |
0.898 |
| 2012 |
18.9 |
0.902 |
| 2013 |
18.4 |
0.906 |
| 2014 |
18.0 |
0.910 |
| 2015 |
17.6 |
0.914 |
| 2016 |
17.2 |
0.918 |
| 2017 |
16.8 |
0.922 |
| 2018 |
16.4 |
0.926 |
| 2019 |
16.0 |
0.931 |
| 2020 |
15.6 |
0.935 |
| 2021 |
15.2 |
0.939 |
| 2022 |
14.8 |
0.943 |
| 2023 |
14.5 |
0.947 |
| 2024 |
14.1 |
0.951 |
| 2025 |
13.7 |
0.955 |
| 2026 |
13.3 |
0.959 |
| 2027 |
13.0 |
0.963 |
| 2028 |
12.6 |
0.968 |
| 2029 |
12.3 |
0.972 |
| 2030 |
11.9 |
0.976 |
| 2031 |
11.5 |
0.980 |
| 2032 |
11.2 |
0.984 |
| 2033 |
10.8 |
0.988 |
| 2034 |
10.5 |
0.992 |
| 2035 |
10.1 |
0.996 |
| 2036 |
9.8 |
1.000 |
| 2037 |
9.5 |
1.004 |
| 2038 |
9.1 |
1.008 |
| 2039 |
8.8 |
1.012 |
| 2040 |
8.5 |
1.016 |
| 2041 |
8.1 |
1.020 |
| 2042 |
7.8 |
1.024 |
| 2043 |
7.5 |
1.027 |
| 2044 |
7.2 |
1.031 |
| 2045 |
6.8 |
1.035 |
| 2046 |
6.5 |
1.039 |
| 2047 |
6.2 |
1.042 |
| 2048 |
5.9 |
1.046 |
| 2049 |
5.6 |
1.050 |
| 2050 |
5.3 |
1.053 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
Measures: green=micrometric, blue=interferometric, purple=photographic
|
|
