15382+3615 STF 1964 CD
15h 38m 14.14s +36° 14' 49.7" P.A. 21.00 sep 1.5 mag 8.06,9.02 Sp F5 dist. 27.59 pc (90 l.y.)
Coord 2000 |
15382+3615 |
|
Discov num |
STF1964 |
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Comp |
CD |
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Coord arcsec 2000 |
15 38 14.14 +36 14 49.7 |
|
Date first |
1829 |
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Date last |
2019 |
|
Obs |
69 |
|
Pa first |
10 |
|
Pa last |
20.9 |
|
P.A. Now (θ) |
20.9° |
|
Sep first |
1.4 |
|
Sep last |
1.489 |
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Sep. Now (ρ) |
1.489" |
|
Mag pri |
8.06 |
|
Mag sec |
9.02 |
|
delta mag (ΔM) |
0.96 |
|
Spectral class |
F5 (yellow-white) |
|
Pri motion ra |
-062 |
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Sec motion ra |
-062 |
|
Pri motion dec |
+043 |
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Sec motion dec |
+043 |
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Notes |
N
O
W
(See Notes, Orbital solution, ) |
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This double is physical.
15382+3615 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 139691 |
|
15 38 13 +36 14 49 |
HU 1167 AB |
2016 |
26 |
80 |
1.4 |
8.07 |
9.87 |
1.80 |
Y |
|
Show |
|
64821 |
15 38 13 +36 14 49 |
STF 1964 AC |
2017 |
82 |
90 |
14.5 |
8.07 |
8.06 |
0.01 |
|
|
Show |
|
|
15 38 13 +36 14 49 |
STF 1964 AD |
2018 |
19 |
83 |
15.1 |
8.07 |
9.02 |
0.95 |
|
|
Show |
|
64821 |
15 38 14 +36 14 50 |
STF 1964 CD |
2019 |
69 |
21 |
1.5 |
8.06 |
9.02 |
0.96 |
Y |
<=== |
Show |
|
64821 |
15 38 14 +36 14 50 |
WAK 1 CE |
2011 |
5 |
82 |
0.2 |
8.07 |
8.20 |
0.13 |
|
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Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Corona Borealis |
|
SAO |
64821 |
|
HIP |
76566 |
|
Tycho2 |
2577-01755-1 |
|
Gaia DR2 |
1374656960858803072 |
|
HD |
139691 |
|
GC |
21037 |
|
ADS |
9731 |
|
BD |
BD+36 2626 |
|
Distance |
27.59 |
|
Distance ly |
90 |
|
ORBITAL ELEMENTS
Period (P) | 1230y | ± 261 |
Periastron (T) | 1955.3y | ± 21.3 |
Semi-major axis (a) | 1.582a | ± 0.027 |
Eccentricity (e) | 0 | |
Inclination (i) | 78.4° | ± 3.8 |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 15.9° | ± 1.6 |
Notes | n | |
Reference | Dru1995 | |
Equinox | | |
Last observation | 1994 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
18.6 |
1.543 |
2001 |
18.6 |
1.541 |
2002 |
18.7 |
1.539 |
2003 |
18.8 |
1.537 |
2004 |
18.8 |
1.535 |
2005 |
18.9 |
1.533 |
2006 |
18.9 |
1.531 |
2007 |
19.0 |
1.529 |
2008 |
19.1 |
1.527 |
2009 |
19.1 |
1.525 |
2010 |
19.2 |
1.523 |
2011 |
19.3 |
1.521 |
2012 |
19.3 |
1.519 |
2013 |
19.4 |
1.517 |
2014 |
19.5 |
1.514 |
2015 |
19.5 |
1.512 |
2016 |
19.6 |
1.510 |
2017 |
19.7 |
1.507 |
2018 |
19.7 |
1.505 |
2019 |
19.8 |
1.502 |
2020 |
19.8 |
1.500 |
2021 |
19.9 |
1.497 |
2022 |
20.0 |
1.495 |
2023 |
20.0 |
1.492 |
2024 |
20.1 |
1.490 |
2025 |
20.2 |
1.487 |
2026 |
20.2 |
1.484 |
2027 |
20.3 |
1.481 |
2028 |
20.4 |
1.479 |
2029 |
20.4 |
1.476 |
2030 |
20.5 |
1.473 |
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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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