13169+1701 BU 800 AB (HD 115404)
13h 16m 51.05s +17° 01' 01.9" P.A. 104.00 sep 7.7 mag 6.66,9.50 Sp K1V+M1V dist. 11.07 pc (36.11 l.y.)
Coord 2000 |
13169+1701 |
|
Discov num |
BU 800 |
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Comp |
AB |
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Coord arcsec 2000 |
13 16 51.05 +17 01 01.9 |
|
Date first |
1881 |
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Date last |
2020 |
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Obs |
214 |
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Pa first |
122 |
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Pa last |
104.1 |
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P.A. Now (θ) |
104.1° |
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Sep first |
1.3 |
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Sep last |
7.65 |
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Sep. Now (ρ) |
7.65" |
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Mag pri |
6.66 |
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Mag sec |
9.50 |
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delta mag (ΔM) |
2.84 |
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Spectral class |
K1V+M1V (yellow-orange/red) |
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Pri motion ra |
+631 |
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Sec motion ra |
+631 |
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Pri motion dec |
-261 |
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Sec motion dec |
-261 |
|
Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
13169+1701 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 115404 |
100491 |
13 16 51 +17 01 02 |
BU 800 AB |
2020 |
214 |
104 |
7.7 |
6.66 |
9.50 |
2.84 |
Y |
<=== |
Show |
|
100491 |
13 16 51 +17 01 02 |
BU 800 AC |
2015 |
10 |
334 |
128.2 |
6.66 |
12.60 |
5.94 |
|
|
Show |
|
100491 |
13 16 51 +17 01 02 |
BU 800 AD |
2015 |
6 |
74 |
35.2 |
6.66 |
13.30 |
6.64 |
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Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 115404 |
|
Constellation |
Coma Berenices |
|
SAO |
100491 |
|
HIP |
64797 |
|
Tycho2 |
1451-01151-1 |
|
HD |
115404 |
|
GC |
17981 |
|
ADS |
8841 |
|
GL |
Gl 505A |
|
BD |
BD+17 2611 |
|
Distance |
11.07 |
|
Distance ly |
36.11 |
|
ORBITAL ELEMENTS
Period (P) | 607.2223y | ± 220.7846 |
Periastron (T) | 1819.455y | ± 26.8889 |
Semi-major axis (a) | 6.36385a | ± 1.12646 |
Eccentricity (e) | 0.31334 | ± 0.12475 |
Inclination (i) | 94.417° | ± 0.548 |
Longitude of periastron (ω) | 217.465° | ± 48.581 |
Node (Ω) | 104.659° | ± 0.665 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
105.1 |
7.386 |
2001 |
105.1 |
7.407 |
2002 |
105.1 |
7.426 |
2003 |
105.0 |
7.445 |
2004 |
105.0 |
7.464 |
2005 |
105.0 |
7.483 |
2006 |
104.9 |
7.500 |
2007 |
104.9 |
7.518 |
2008 |
104.9 |
7.534 |
2009 |
104.8 |
7.551 |
2010 |
104.8 |
7.567 |
2011 |
104.8 |
7.582 |
2012 |
104.8 |
7.597 |
2013 |
104.7 |
7.611 |
2014 |
104.7 |
7.625 |
2015 |
104.7 |
7.639 |
2016 |
104.6 |
7.652 |
2017 |
104.6 |
7.664 |
2018 |
104.6 |
7.676 |
2019 |
104.5 |
7.688 |
2020 |
104.5 |
7.699 |
2021 |
104.5 |
7.710 |
2022 |
104.5 |
7.720 |
2023 |
104.4 |
7.729 |
2024 |
104.4 |
7.739 |
2025 |
104.4 |
7.748 |
2026 |
104.3 |
7.756 |
2027 |
104.3 |
7.764 |
2028 |
104.3 |
7.771 |
2029 |
104.2 |
7.778 |
2030 |
104.2 |
7.785 |
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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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