02087-1005 HU 16 (HD 13191)
02h 08m 42.29s -10° 05' 18.9" P.A. 35.00 sep 0.9 mag 9.30,10.53 Sp G5
Coord 2000 |
02087-1005 |
|
Discov num |
HU 16 |
|
Comp |
|
|
Coord arcsec 2000 |
02 08 42.29 -10 05 18.9 |
|
Date first |
1899 |
|
Date last |
2017 |
|
Obs |
21 |
|
Pa first |
329 |
|
Pa last |
35.4 |
|
P.A. Now (θ) |
35.4° |
|
Sep first |
1.1 |
|
Sep last |
0.892 |
|
Sep. Now (ρ) |
0.892" |
|
Mag pri |
9.30 |
|
Mag sec |
10.53 |
|
delta mag (ΔM) |
1.23 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+152 |
|
Sec motion ra |
+152 |
|
Pri motion dec |
-016 |
|
Sec motion dec |
-016 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 13191 |
|
Constellation |
Cetus |
|
Tycho2 |
5281-02156-1 |
|
Gaia DR2 |
2461867767939946112 |
|
HD |
13191 |
|
ADS |
1674 |
|
ORBITAL ELEMENTS
Period (P) | 485y | |
Periastron (T) | 1929.62y | |
Semi-major axis (a) | 1.173a | |
Eccentricity (e) | 0 | |
Inclination (i) | 45.4° | |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 338.8° | |
Notes | | |
Reference | Tok2017c | |
Equinox | 2000 | |
Last observation | 2013 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
21.0 |
0.969 |
2001 |
21.8 |
0.965 |
2002 |
22.5 |
0.960 |
2003 |
23.3 |
0.956 |
2004 |
24.1 |
0.952 |
2005 |
24.9 |
0.947 |
2006 |
25.7 |
0.943 |
2007 |
26.5 |
0.938 |
2008 |
27.3 |
0.934 |
2009 |
28.2 |
0.930 |
2010 |
29.0 |
0.925 |
2011 |
29.8 |
0.921 |
2012 |
30.7 |
0.917 |
2013 |
31.5 |
0.913 |
2014 |
32.4 |
0.909 |
2015 |
33.3 |
0.905 |
2016 |
34.2 |
0.901 |
2017 |
35.0 |
0.897 |
2018 |
35.9 |
0.893 |
2019 |
36.8 |
0.889 |
2020 |
37.8 |
0.885 |
2021 |
38.7 |
0.882 |
2022 |
39.6 |
0.878 |
2023 |
40.5 |
0.875 |
2024 |
41.5 |
0.872 |
2025 |
42.4 |
0.868 |
2026 |
43.4 |
0.865 |
2027 |
44.3 |
0.862 |
2028 |
45.3 |
0.859 |
2029 |
46.3 |
0.856 |
2030 |
47.3 |
0.853 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|