12244+2535 STF 1639 AB (HD 108007)
12h 24m 26.81s +25° 34' 56.7" P.A. 324.00 sep 1.9 mag 6.74,7.83 Sp A7V+F4V dist. 90.25 pc (294.4 l.y.)
Coord 2000 |
12244+2535 |
|
Discov num |
STF1639 |
|
Comp |
AB |
|
Coord arcsec 2000 |
12 24 26.81 +25 34 56.7 |
|
Date first |
1827 |
|
Date last |
2019 |
|
Obs |
446 |
|
Pa first |
291 |
|
Pa last |
323.6 |
|
P.A. Now (θ) |
323.6° |
|
Sep first |
1.3 |
|
Sep last |
1.88 |
|
Sep. Now (ρ) |
1.88" |
|
Mag pri |
6.74 |
|
Mag sec |
7.83 |
|
delta mag (ΔM) |
1.09 |
|
Spectral class |
A7V+F4V (white/yellow-white) |
|
Pri motion ra |
-013 |
|
Sec motion ra |
-013 |
|
Pri motion dec |
-013 |
|
Sec motion dec |
-013 |
|
Notes |
O
(Orbital solution) |
|
This double is physical.
12244+2535 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 108007 |
82293 |
12 24 27 +25 34 57 |
STF 1639 AB |
2019 |
446 |
324 |
1.9 |
6.74 |
7.83 |
1.09 |
Y |
<=== |
Show |
|
82293 |
12 24 27 +25 34 57 |
STF 1639 AC |
2015 |
11 |
159 |
91.4 |
6.74 |
11.42 |
4.68 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 108007 |
|
Constellation |
Coma Berenices |
|
SAO |
82293 |
|
HIP |
60525 |
|
Tycho2 |
1989-03211-1 |
|
Gaia DR2 |
4008366950132501120 |
|
HD |
108007 |
|
HR |
4719 |
|
GC |
16911 |
|
ADS |
8539 |
|
BD |
BD+26 2345 |
|
Distance |
90.25 |
|
Distance ly |
294.4 |
|
ORBITAL ELEMENTS
Period (P) | 575.44y | |
Periastron (T) | 1891.75y | |
Semi-major axis (a) | 1.224a | |
Eccentricity (e) | 0.926 | |
Inclination (i) | 150.4° | |
Longitude of periastron (ω) | 9.7° | |
Node (Ω) | 140.8° | |
Notes | | |
Reference | Ole2000b | |
Equinox | | |
Last observation | 2000 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
324.6 |
1.712 |
2001 |
324.5 |
1.720 |
2002 |
324.4 |
1.728 |
2003 |
324.3 |
1.736 |
2004 |
324.2 |
1.744 |
2005 |
324.1 |
1.751 |
2006 |
324.0 |
1.759 |
2007 |
323.9 |
1.767 |
2008 |
323.8 |
1.774 |
2009 |
323.7 |
1.782 |
2010 |
323.6 |
1.789 |
2011 |
323.5 |
1.796 |
2012 |
323.4 |
1.804 |
2013 |
323.3 |
1.811 |
2014 |
323.2 |
1.818 |
2015 |
323.1 |
1.825 |
2016 |
323.0 |
1.832 |
2017 |
323.0 |
1.839 |
2018 |
322.9 |
1.846 |
2019 |
322.8 |
1.853 |
2020 |
322.7 |
1.860 |
2021 |
322.6 |
1.867 |
2022 |
322.5 |
1.873 |
2023 |
322.4 |
1.880 |
2024 |
322.3 |
1.886 |
2025 |
322.2 |
1.893 |
2026 |
322.2 |
1.899 |
2027 |
322.1 |
1.906 |
2028 |
322.0 |
1.912 |
2029 |
321.9 |
1.918 |
2030 |
321.8 |
1.925 |
|
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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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