12301-1324 BU 28 AB (HD 108799)
12h 30m 04.77s -13° 23' 35.5" P.A. 349.00 sep 2.1 mag 6.49,9.58 Sp F9V dist. 24.65 pc (80.41 l.y.)
Coord 2000 |
12301-1324 |
|
Discov num |
BU 28 |
|
Comp |
AB |
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Coord arcsec 2000 |
12 30 04.77 -13 23 35.5 |
|
Date first |
1872 |
|
Date last |
2019 |
|
Obs |
103 |
|
Pa first |
355 |
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Pa last |
349 |
|
P.A. Now (θ) |
351° |
|
Sep first |
3.0 |
|
Sep last |
2.128 |
|
Sep. Now (ρ) |
2.133" |
|
Mag pri |
6.49 |
|
Mag sec |
9.58 |
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delta mag (ΔM) |
3.09 |
|
Spectral class |
F9V (yellow-white) |
|
Pri motion ra |
-262 |
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Sec motion ra |
-238 |
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Pri motion dec |
-054 |
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Sec motion dec |
-032 |
|
Notes |
N
O
(See Notes, Orbital solution) |
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rPM=0.122 (< 0.3, Physical double)
This double is physical.
12301-1324 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 108799 |
157326 |
12 30 05 -13 23 36 |
BU 28 AB |
2019 |
103 |
349 |
2.1 |
6.49 |
9.58 |
3.09 |
Y |
<=== |
Show |
|
157326 |
12 30 05 -13 23 36 |
LV 19 AC |
2013 |
6 |
303 |
71.3 |
6.49 |
10.60 |
4.11 |
|
|
Show |
|
157326 |
12 30 05 -13 23 36 |
LV 19 AD |
2013 |
5 |
166 |
71.2 |
6.49 |
11.60 |
5.11 |
|
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Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 108799 |
|
Constellation |
Corvus |
|
SAO |
157326 |
|
HIP |
60994 |
|
Tycho2 |
5533-01791-1 |
|
Gaia DR2 |
3528362362908431616 |
|
HD |
108799 |
|
HR |
4758 |
|
GC |
17036 |
|
ADS |
8573 |
|
GL |
Gl 469.2A |
|
BD |
BD-12 3647 |
|
Distance |
24.65 |
|
Distance ly |
80.41 |
|
ORBITAL ELEMENTS
Period (P) | 150.94y | |
Periastron (T) | 1946.09y | |
Semi-major axis (a) | 1.395a | |
Eccentricity (e) | 0.702 | |
Inclination (i) | 29.9° | |
Longitude of periastron (ω) | 60.9° | |
Node (Ω) | 112.8° | |
Notes | n | |
Reference | Msn2017a | |
Equinox | 2000 | |
Last observation | 2016 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
336.5 |
2.078 |
2001 |
337.1 |
2.087 |
2002 |
337.8 |
2.094 |
2003 |
338.4 |
2.102 |
2004 |
339.1 |
2.108 |
2005 |
339.7 |
2.114 |
2006 |
340.4 |
2.120 |
2007 |
341.0 |
2.125 |
2008 |
341.6 |
2.129 |
2009 |
342.3 |
2.133 |
2010 |
342.9 |
2.136 |
2011 |
343.5 |
2.139 |
2012 |
344.1 |
2.142 |
2013 |
344.8 |
2.143 |
2014 |
345.4 |
2.144 |
2015 |
346.0 |
2.145 |
2016 |
346.6 |
2.145 |
2017 |
347.2 |
2.145 |
2018 |
347.9 |
2.144 |
2019 |
348.5 |
2.143 |
2020 |
349.1 |
2.141 |
2021 |
349.7 |
2.139 |
2022 |
350.4 |
2.136 |
2023 |
351.0 |
2.133 |
2024 |
351.6 |
2.129 |
2025 |
352.3 |
2.125 |
2026 |
352.9 |
2.120 |
2027 |
353.5 |
2.114 |
2028 |
354.2 |
2.109 |
2029 |
354.8 |
2.102 |
2030 |
355.5 |
2.096 |
|
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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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