16147+3352 YSC 152 Ea,Eb
16h 13m 56.27s +33° 46' 24.3" P.A. 29.00 sep 0.5 mag 12.40,15.00 dist. 21.08 pc (68.76 l.y.)
| Coord 2000 |
16147+3352 |
|
Discov num |
YSC 152 |
|
Comp |
Ea,Eb |
|
Coord arcsec 2000 |
16 13 56.27 +33 46 24.3 |
|
| Date first |
2008 |
|
Date last |
2018 |
|
Obs |
9 |
|
| Pa first |
321 |
|
Pa last |
28.7 |
|
P.A. Now (θ) |
28.7° |
|
| Sep first |
0.3 |
|
Sep last |
0.507 |
|
Sep. Now (ρ) |
0.507" |
|
| Mag pri |
12.40 |
|
Mag sec |
15.00 |
|
delta mag (ΔM) |
2.6 |
|
Spectral class |
|
|
| Pri motion ra |
-269 |
|
Sec motion ra |
|
|
| Pri motion dec |
-089 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
16147+3352 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Sig CrB |
65165 |
16 14 41 +33 51 31 |
STF 2032 AB |
2021 |
1134 |
240 |
7.2 |
5.62 |
6.49 |
0.87 |
Y |
|
| Show |
|
65165 |
16 14 41 +33 51 31 |
STF 2032 AC |
2021 |
19 |
91 |
27.7 |
5.62 |
13.10 |
7.48 |
|
|
| Show |
|
65165 |
16 14 41 +33 51 31 |
STF 2032 AD |
2021 |
120 |
82 |
95.3 |
5.62 |
10.78 |
5.16 |
|
|
| Show |
|
65165 |
16 14 41 +33 51 31 |
STF 2032 AE |
2021 |
17 |
241 |
635.1 |
5.62 |
12.31 |
6.69 |
|
|
| Show |
|
65165 |
16 14 40 +33 51 27 |
STF 2032 BD |
2021 |
72 |
81 |
102.0 |
6.49 |
10.78 |
4.29 |
|
|
| Show |
|
65165 |
16 13 56 +33 46 24 |
YSC 152 Ea,Eb |
2018 |
9 |
29 |
0.5 |
12.40 |
15.00 |
2.60 |
Y |
<=== |
| Show |
|
|
16 13 56 +33 46 24 |
RAO 65 EF |
2015 |
4 |
239 |
30.7 |
12.34 |
14.85 |
2.51 |
|
|
Septuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
TZ CrB |
|
Spectr |
F8V |
|
Constellation |
Corona Borealis |
|
SAO |
65165 |
|
| HIP |
79607 |
|
Tycho2 |
2583-01846-1 |
|
Gaia DR2 |
1322906861255829376 |
|
HD |
146361 |
|
| HR |
6063 |
|
GC |
21863 |
|
ADS |
9979 |
|
GL |
Gl 615.2A |
|
| BD |
BD+34 2750 |
|
Bayer |
Sigma Coronae Borealis |
|
Bayer name |
Sig CrB |
|
Distance |
21.08 |
|
| Distance ly |
68.76 |
|
Bayer greek |
σ CrB |
|
ORBITAL ELEMENTS SOLUTION #1
| Period (P) | 52y | |
Periastron (T) | 1963y | |
Semi-major axis (a) | 0.111a | |
| Eccentricity (e) | 0.36 | |
Inclination (i) | 59° | |
Longitude of periastron (ω) | 127° | |
| Node (Ω) | 30° | |
Notes | n | |
Reference | Hei1990d | |
| Equinox | 2000 | |
Last observation | | |
Grade | 9 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
24.3 |
0.130 |
| 2001 |
26.8 |
0.128 |
| 2002 |
29.4 |
0.124 |
| 2003 |
32.1 |
0.120 |
| 2004 |
35.1 |
0.114 |
| 2005 |
38.4 |
0.108 |
| 2006 |
42.2 |
0.100 |
| 2007 |
46.7 |
0.091 |
| 2008 |
52.3 |
0.081 |
| 2009 |
59.5 |
0.070 |
| 2010 |
69.4 |
0.059 |
| 2011 |
83.9 |
0.048 |
| 2012 |
105.1 |
0.041 |
| 2013 |
132.0 |
0.039 |
| 2014 |
157.2 |
0.043 |
| 2015 |
175.6 |
0.052 |
| 2016 |
188.6 |
0.061 |
| 2017 |
198.1 |
0.070 |
| 2018 |
205.7 |
0.076 |
| 2019 |
212.4 |
0.081 |
| 2020 |
218.4 |
0.083 |
| 2021 |
224.3 |
0.084 |
| 2022 |
230.2 |
0.083 |
| 2023 |
236.2 |
0.081 |
| 2024 |
242.6 |
0.079 |
| 2025 |
249.5 |
0.076 |
| 2026 |
256.8 |
0.074 |
| 2027 |
264.6 |
0.071 |
| 2028 |
272.9 |
0.070 |
| 2029 |
281.5 |
0.069 |
| 2030 |
290.2 |
0.069 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
ORBITAL ELEMENTS SOLUTION #2
| Period (P) | 52y | |
Periastron (T) | 1994.267y | |
Semi-major axis (a) | 0.514a | |
| Eccentricity (e) | 0 | |
Inclination (i) | 60.5° | |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 214.9° | |
Notes | n | |
Reference | Tok2019e | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
237.1 |
0.427 |
| 2001 |
242.4 |
0.398 |
| 2002 |
248.6 |
0.367 |
| 2003 |
255.9 |
0.336 |
| 2004 |
264.7 |
0.306 |
| 2005 |
275.2 |
0.281 |
| 2006 |
287.5 |
0.262 |
| 2007 |
301.2 |
0.254 |
| 2008 |
315.1 |
0.256 |
| 2009 |
328.2 |
0.270 |
| 2010 |
339.7 |
0.292 |
| 2011 |
349.4 |
0.320 |
| 2012 |
357.5 |
0.350 |
| 2013 |
4.2 |
0.382 |
| 2014 |
9.9 |
0.412 |
| 2015 |
14.9 |
0.440 |
| 2016 |
19.3 |
0.464 |
| 2017 |
23.3 |
0.484 |
| 2018 |
27.0 |
0.500 |
| 2019 |
30.6 |
0.509 |
| 2020 |
34.0 |
0.514 |
| 2021 |
37.4 |
0.512 |
| 2022 |
40.9 |
0.506 |
| 2023 |
44.5 |
0.493 |
| 2024 |
48.3 |
0.476 |
| 2025 |
52.5 |
0.453 |
| 2026 |
57.1 |
0.427 |
| 2027 |
62.4 |
0.398 |
| 2028 |
68.6 |
0.367 |
| 2029 |
75.9 |
0.336 |
| 2030 |
84.7 |
0.306 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
