09245+0621 STF 1348 AB (HD 81212)
09h 24m 28.48s +06° 21' 01.8" P.A. 314.00 sep 2.0 mag 7.45,7.57 Sp F7V dist. 71.17 pc (232.16 l.y.)
| Coord 2000 |
09245+0621 |
|
Discov num |
STF1348 |
|
Comp |
AB |
|
Coord arcsec 2000 |
09 24 28.48 +06 21 01.8 |
|
| Date first |
1831 |
|
Date last |
2018 |
|
Obs |
240 |
|
| Pa first |
334 |
|
Pa last |
314 |
|
P.A. Now (θ) |
314° |
|
| Sep first |
1.1 |
|
Sep last |
1.956 |
|
Sep. Now (ρ) |
1.956" |
|
| Mag pri |
7.45 |
|
Mag sec |
7.57 |
|
delta mag (ΔM) |
0.12 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
-173 |
|
Sec motion ra |
-172 |
|
| Pri motion dec |
-033 |
|
Sec motion dec |
-034 |
|
| Notes |
O
(Orbital solution) |
|
rPM=0.008 (< 0.3, Physical double)
This double is physical.
09245+0621 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 81212 |
117661 |
09 24 28 +06 21 02 |
STF 1348 AB |
2018 |
240 |
314 |
2.0 |
7.45 |
7.57 |
0.12 |
Y |
<=== |
| Show |
|
117661 |
09 24 28 +06 21 02 |
LDS 3888 AC |
2015 |
5 |
325 |
123.1 |
7.45 |
14.41 |
6.96 |
|
|
| Show |
|
|
09 24 24 +06 22 42 |
NSN 594 CD |
2016 |
3 |
22 |
1.8 |
14.64 |
15.63 |
0.99 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 81212 |
|
Constellation |
Hydra |
|
SAO |
117661 |
|
HIP |
46134 |
|
| Tycho2 |
0234-01664-1 |
|
Gaia DR2 |
585739741384499072 |
|
HD |
81212 |
|
GC |
12975 |
|
| BD |
BD+06 2169 |
|
Distance |
71.17 |
|
Distance ly |
232.16 |
|
ORBITAL ELEMENTS SOLUTION #1
| Period (P) | 4734.231y | |
Periastron (T) | 1800.232y | |
Semi-major axis (a) | 6.261a | |
| Eccentricity (e) | 0.82 | |
Inclination (i) | 100.01° | |
Longitude of periastron (ω) | 117.49° | |
| Node (Ω) | 148.32° | |
Notes | | |
Reference | Grv2021c | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
315.6 |
1.960 |
| 2001 |
315.5 |
1.960 |
| 2002 |
315.5 |
1.959 |
| 2003 |
315.4 |
1.959 |
| 2004 |
315.3 |
1.958 |
| 2005 |
315.2 |
1.958 |
| 2006 |
315.2 |
1.957 |
| 2007 |
315.1 |
1.957 |
| 2008 |
315.0 |
1.956 |
| 2009 |
314.9 |
1.956 |
| 2010 |
314.8 |
1.955 |
| 2011 |
314.8 |
1.955 |
| 2012 |
314.7 |
1.954 |
| 2013 |
314.6 |
1.953 |
| 2014 |
314.5 |
1.953 |
| 2015 |
314.5 |
1.952 |
| 2016 |
314.4 |
1.951 |
| 2017 |
314.3 |
1.951 |
| 2018 |
314.2 |
1.950 |
| 2019 |
314.1 |
1.949 |
| 2020 |
314.1 |
1.948 |
| 2021 |
314.0 |
1.947 |
| 2022 |
313.9 |
1.947 |
| 2023 |
313.8 |
1.946 |
| 2024 |
313.8 |
1.945 |
| 2025 |
313.7 |
1.944 |
| 2026 |
313.6 |
1.943 |
| 2027 |
313.5 |
1.942 |
| 2028 |
313.4 |
1.941 |
| 2029 |
313.4 |
1.940 |
| 2030 |
313.3 |
1.939 |
| 2031 |
313.2 |
1.938 |
| 2032 |
313.1 |
1.937 |
| 2033 |
313.0 |
1.936 |
| 2034 |
313.0 |
1.935 |
| 2035 |
312.9 |
1.934 |
| 2036 |
312.8 |
1.933 |
| 2037 |
312.7 |
1.932 |
| 2038 |
312.6 |
1.931 |
| 2039 |
312.6 |
1.930 |
| 2040 |
312.5 |
1.929 |
| 2041 |
312.4 |
1.928 |
| 2042 |
312.3 |
1.927 |
| 2043 |
312.3 |
1.925 |
| 2044 |
312.2 |
1.924 |
| 2045 |
312.1 |
1.923 |
| 2046 |
312.0 |
1.922 |
| 2047 |
311.9 |
1.921 |
| 2048 |
311.8 |
1.919 |
| 2049 |
311.8 |
1.918 |
| 2050 |
311.7 |
1.917 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
ORBITAL ELEMENTS SOLUTION #2
| Period (P) | 8612.811y | |
Periastron (T) | 1839.796y | |
Semi-major axis (a) | 9.331a | |
| Eccentricity (e) | 0.834 | |
Inclination (i) | 98.61° | |
Longitude of periastron (ω) | 317.36° | |
| Node (Ω) | 35.97° | |
Notes | | |
Reference | Grv2021c | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
27.5 |
1.965 |
| 2001 |
27.5 |
1.964 |
| 2002 |
27.4 |
1.962 |
| 2003 |
27.3 |
1.961 |
| 2004 |
27.2 |
1.959 |
| 2005 |
27.1 |
1.958 |
| 2006 |
27.1 |
1.956 |
| 2007 |
27.0 |
1.955 |
| 2008 |
26.9 |
1.953 |
| 2009 |
26.8 |
1.952 |
| 2010 |
26.8 |
1.950 |
| 2011 |
26.7 |
1.948 |
| 2012 |
26.6 |
1.946 |
| 2013 |
26.5 |
1.945 |
| 2014 |
26.4 |
1.943 |
| 2015 |
26.4 |
1.941 |
| 2016 |
26.3 |
1.939 |
| 2017 |
26.2 |
1.937 |
| 2018 |
26.1 |
1.935 |
| 2019 |
26.0 |
1.933 |
| 2020 |
26.0 |
1.931 |
| 2021 |
25.9 |
1.929 |
| 2022 |
25.8 |
1.927 |
| 2023 |
25.7 |
1.925 |
| 2024 |
25.6 |
1.923 |
| 2025 |
25.5 |
1.921 |
| 2026 |
25.5 |
1.919 |
| 2027 |
25.4 |
1.917 |
| 2028 |
25.3 |
1.915 |
| 2029 |
25.2 |
1.912 |
| 2030 |
25.1 |
1.910 |
| 2031 |
25.1 |
1.908 |
| 2032 |
25.0 |
1.905 |
| 2033 |
24.9 |
1.903 |
| 2034 |
24.8 |
1.901 |
| 2035 |
24.7 |
1.898 |
| 2036 |
24.6 |
1.896 |
| 2037 |
24.6 |
1.894 |
| 2038 |
24.5 |
1.891 |
| 2039 |
24.4 |
1.889 |
| 2040 |
24.3 |
1.886 |
| 2041 |
24.2 |
1.884 |
| 2042 |
24.1 |
1.881 |
| 2043 |
24.0 |
1.878 |
| 2044 |
24.0 |
1.876 |
| 2045 |
23.9 |
1.873 |
| 2046 |
23.8 |
1.871 |
| 2047 |
23.7 |
1.868 |
| 2048 |
23.6 |
1.865 |
| 2049 |
23.5 |
1.863 |
| 2050 |
23.4 |
1.860 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
ORBITAL ELEMENTS SOLUTION #3
| Period (P) | 568.4y | |
Periastron (T) | 1800y | |
Semi-major axis (a) | 1.836a | |
| Eccentricity (e) | 0.888 | |
Inclination (i) | 106.86° | |
Longitude of periastron (ω) | 63.73° | |
| Node (Ω) | 159.21° | |
Notes | | |
Reference | Grv2021c | |
| Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
315.5 |
1.964 |
| 2001 |
315.4 |
1.964 |
| 2002 |
315.3 |
1.963 |
| 2003 |
315.3 |
1.962 |
| 2004 |
315.2 |
1.961 |
| 2005 |
315.1 |
1.960 |
| 2006 |
315.0 |
1.959 |
| 2007 |
315.0 |
1.958 |
| 2008 |
314.9 |
1.957 |
| 2009 |
314.8 |
1.956 |
| 2010 |
314.7 |
1.955 |
| 2011 |
314.7 |
1.954 |
| 2012 |
314.6 |
1.953 |
| 2013 |
314.5 |
1.952 |
| 2014 |
314.5 |
1.950 |
| 2015 |
314.4 |
1.949 |
| 2016 |
314.3 |
1.948 |
| 2017 |
314.2 |
1.946 |
| 2018 |
314.2 |
1.945 |
| 2019 |
314.1 |
1.944 |
| 2020 |
314.0 |
1.942 |
| 2021 |
313.9 |
1.941 |
| 2022 |
313.8 |
1.939 |
| 2023 |
313.8 |
1.938 |
| 2024 |
313.7 |
1.936 |
| 2025 |
313.6 |
1.934 |
| 2026 |
313.5 |
1.933 |
| 2027 |
313.5 |
1.931 |
| 2028 |
313.4 |
1.929 |
| 2029 |
313.3 |
1.927 |
| 2030 |
313.2 |
1.926 |
| 2031 |
313.2 |
1.924 |
| 2032 |
313.1 |
1.922 |
| 2033 |
313.0 |
1.920 |
| 2034 |
312.9 |
1.918 |
| 2035 |
312.9 |
1.916 |
| 2036 |
312.8 |
1.914 |
| 2037 |
312.7 |
1.912 |
| 2038 |
312.6 |
1.910 |
| 2039 |
312.5 |
1.908 |
| 2040 |
312.5 |
1.906 |
| 2041 |
312.4 |
1.903 |
| 2042 |
312.3 |
1.901 |
| 2043 |
312.2 |
1.899 |
| 2044 |
312.1 |
1.897 |
| 2045 |
312.1 |
1.894 |
| 2046 |
312.0 |
1.892 |
| 2047 |
311.9 |
1.890 |
| 2048 |
311.8 |
1.887 |
| 2049 |
311.7 |
1.885 |
| 2050 |
311.7 |
1.882 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
