09174+2339 STF 1332 (HD 79872)
09h 17m 19.21s +23° 39' 09.8" P.A. 29.00 sep 5.9 mag 7.87,8.12 Sp F6V+F7V dist. 71.28 pc (232.52 l.y.)
| Coord 2000 |
09174+2339 |
|
Discov num |
STF1332 |
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Comp |
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Coord arcsec 2000 |
09 17 19.21 +23 39 09.8 |
|
| Date first |
1822 |
|
Date last |
2019 |
|
Obs |
145 |
|
| Pa first |
14 |
|
Pa last |
29.4 |
|
P.A. Now (θ) |
29.4° |
|
| Sep first |
5.5 |
|
Sep last |
5.933 |
|
Sep. Now (ρ) |
5.933" |
|
| Mag pri |
7.87 |
|
Mag sec |
8.12 |
|
delta mag (ΔM) |
0.25 |
|
Spectral class |
F6V+F7V (yellow-white/yellow-white) |
|
| Pri motion ra |
-046 |
|
Sec motion ra |
-046 |
|
| Pri motion dec |
-067 |
|
Sec motion dec |
-067 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 79872 |
|
Constellation |
Cancer |
|
SAO |
80738 |
|
HIP |
45574 |
|
| Tycho2 |
1951-01947-1 |
|
Gaia DR2 |
687376019276147968 |
|
HD |
79872 |
|
GC |
12804 |
|
| ADS |
7281 |
|
BD |
BD+24 2068 |
|
Distance |
71.28 |
|
Distance ly |
232.52 |
|
ORBITAL ELEMENTS
| Period (P) | 3395.218y | ± 1537.5039 |
Periastron (T) | 1500.7561y | ± 757.5483 |
Semi-major axis (a) | 9.86671a | ± 4.37108 |
| Eccentricity (e) | 0.78632 | ± 0.15608 |
Inclination (i) | 69.468° | ± 9.975 |
Longitude of periastron (ω) | 97.588° | ± 15.114 |
| Node (Ω) | 172.468° | ± 107.435 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
28.1 |
5.894 |
| 2001 |
28.1 |
5.894 |
| 2002 |
28.2 |
5.895 |
| 2003 |
28.3 |
5.895 |
| 2004 |
28.3 |
5.896 |
| 2005 |
28.4 |
5.896 |
| 2006 |
28.4 |
5.896 |
| 2007 |
28.5 |
5.897 |
| 2008 |
28.6 |
5.897 |
| 2009 |
28.6 |
5.898 |
| 2010 |
28.7 |
5.898 |
| 2011 |
28.8 |
5.898 |
| 2012 |
28.8 |
5.899 |
| 2013 |
28.9 |
5.899 |
| 2014 |
29.0 |
5.899 |
| 2015 |
29.0 |
5.900 |
| 2016 |
29.1 |
5.900 |
| 2017 |
29.2 |
5.900 |
| 2018 |
29.2 |
5.901 |
| 2019 |
29.3 |
5.901 |
| 2020 |
29.3 |
5.901 |
| 2021 |
29.4 |
5.901 |
| 2022 |
29.5 |
5.902 |
| 2023 |
29.5 |
5.902 |
| 2024 |
29.6 |
5.902 |
| 2025 |
29.7 |
5.903 |
| 2026 |
29.7 |
5.903 |
| 2027 |
29.8 |
5.903 |
| 2028 |
29.9 |
5.903 |
| 2029 |
29.9 |
5.904 |
| 2030 |
30.0 |
5.904 |
| 2031 |
30.1 |
5.904 |
| 2032 |
30.1 |
5.904 |
| 2033 |
30.2 |
5.904 |
| 2034 |
30.2 |
5.905 |
| 2035 |
30.3 |
5.905 |
| 2036 |
30.4 |
5.905 |
| 2037 |
30.4 |
5.905 |
| 2038 |
30.5 |
5.905 |
| 2039 |
30.6 |
5.906 |
| 2040 |
30.6 |
5.906 |
| 2041 |
30.7 |
5.906 |
| 2042 |
30.8 |
5.906 |
| 2043 |
30.8 |
5.906 |
| 2044 |
30.9 |
5.906 |
| 2045 |
31.0 |
5.906 |
| 2046 |
31.0 |
5.907 |
| 2047 |
31.1 |
5.907 |
| 2048 |
31.1 |
5.907 |
| 2049 |
31.2 |
5.907 |
| 2050 |
31.3 |
5.907 |
|
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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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