15183+2650 STF 1932 AB (HD 136176)
15h 18m 20.19s +26° 50' 24.7" P.A. 267.00 sep 1.6 mag 7.32,7.41 Sp F6V+F6V dist. 35.98 pc (117.37 l.y.)
| Coord 2000 |
15183+2650 |
|
Discov num |
STF1932 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 18 20.19 +26 50 24.7 |
|
| Date first |
1830 |
|
Date last |
2019 |
|
Obs |
601 |
|
| Pa first |
274 |
|
Pa last |
267.4 |
|
P.A. Now (θ) |
268.6° |
|
| Sep first |
1.6 |
|
Sep last |
1.621 |
|
Sep. Now (ρ) |
1.595" |
|
| Mag pri |
7.32 |
|
Mag sec |
7.41 |
|
delta mag (ΔM) |
0.09 |
|
Spectral class |
F6V+F6V (yellow-white/yellow-white) |
|
| Pri motion ra |
+090 |
|
Sec motion ra |
+090 |
|
| Pri motion dec |
+070 |
|
Sec motion dec |
+082 |
|
| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
|
rPM=0.099 (< 0.3, Physical double)
This double is physical.
15183+2650 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
83756 |
15 18 20 +26 50 25 |
CHR 45 Aa,Ab |
1984 |
1 |
66 |
0.3 |
7.10 |
|
|
|
|
| Show |
HD 136176 |
83756 |
15 18 20 +26 50 25 |
STF 1932 AB |
2019 |
601 |
267 |
1.6 |
7.32 |
7.41 |
0.09 |
Y |
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 136176 |
|
Constellation |
Corona Borealis |
|
SAO |
83756 |
|
HIP |
74893 |
|
| Tycho2 |
2028-00978-1 |
|
Gaia DR2 |
1271209615518148736 |
|
HD |
136176 |
|
GC |
20576 |
|
| ADS |
9578 |
|
BD |
BD+27 2477 |
|
Distance |
35.98 |
|
Distance ly |
117.37 |
|
ORBITAL ELEMENTS
| Period (P) | 196.628y | ± 3.5039 |
Periastron (T) | 1941.548y | ± 0.2787 |
Semi-major axis (a) | 1.21625a | ± 0.01228 |
| Eccentricity (e) | 0.64086 | ± 0.00992 |
Inclination (i) | 59.764° | ± 0.647 |
Longitude of periastron (ω) | 50.836° | ± 1.663 |
| Node (Ω) | 64.231° | ± 0.942 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
259.3 |
1.601 |
| 2001 |
259.7 |
1.606 |
| 2002 |
260.1 |
1.609 |
| 2003 |
260.5 |
1.612 |
| 2004 |
260.9 |
1.615 |
| 2005 |
261.3 |
1.618 |
| 2006 |
261.7 |
1.620 |
| 2007 |
262.1 |
1.621 |
| 2008 |
262.5 |
1.622 |
| 2009 |
262.9 |
1.623 |
| 2010 |
263.3 |
1.623 |
| 2011 |
263.7 |
1.623 |
| 2012 |
264.1 |
1.623 |
| 2013 |
264.5 |
1.622 |
| 2014 |
264.9 |
1.621 |
| 2015 |
265.3 |
1.620 |
| 2016 |
265.7 |
1.618 |
| 2017 |
266.1 |
1.616 |
| 2018 |
266.5 |
1.613 |
| 2019 |
266.9 |
1.610 |
| 2020 |
267.3 |
1.607 |
| 2021 |
267.7 |
1.603 |
| 2022 |
268.1 |
1.600 |
| 2023 |
268.6 |
1.595 |
| 2024 |
269.0 |
1.591 |
| 2025 |
269.4 |
1.586 |
| 2026 |
269.8 |
1.581 |
| 2027 |
270.2 |
1.576 |
| 2028 |
270.6 |
1.570 |
| 2029 |
271.1 |
1.564 |
| 2030 |
271.5 |
1.558 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
