16147+3352 STF 2032 AB (Sig CrB)
16h 14m 40.85s +33° 51' 31.0" P.A. 240.00 sep 7.2 mag 5.62,6.49 Sp G0V+G1V dist. 21.08 pc (68.76 l.y.)
| Coord 2000 |
16147+3352 |
|
Discov num |
STF2032 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 14 40.85 +33 51 31.0 |
|
| Date first |
1822 |
|
Date last |
2021 |
|
Obs |
1134 |
|
| Pa first |
70 |
|
Pa last |
239.5 |
|
P.A. Now (θ) |
239.5° |
|
| Sep first |
1.5 |
|
Sep last |
7.216 |
|
Sep. Now (ρ) |
7.216" |
|
| Mag pri |
5.62 |
|
Mag sec |
6.49 |
|
delta mag (ΔM) |
0.87 |
|
Spectral class |
G0V+G1V (yellow/yellow) |
|
| Pri motion ra |
-267 |
|
Sec motion ra |
-292 |
|
| Pri motion dec |
-087 |
|
Sec motion dec |
-082 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.084 (< 0.3, Physical double)
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
| Name |
Sig CrB |
|
Var name |
TZ CrB |
|
Constellation |
Corona Borealis |
|
SAO |
65165 |
|
| HIP |
79607 |
|
Tycho2 |
2583-01846-1 |
|
Gaia DR2 |
1328866562170960512 |
|
HD |
146361 |
|
| HR |
6063 |
|
GC |
21863 |
|
ADS |
9979 |
|
GL |
Gl 615.2A |
|
| BD |
BD+34 2750 |
|
Bayer |
Sigma Coronae Borealis |
|
Bayer name |
Sig CrB |
|
Flamsteed |
17 Coronae Borealis |
|
| Flamsteed name |
17 CrB |
|
Distance |
21.08 |
|
Distance ly |
68.76 |
|
Bayer greek |
σ CrB |
|
ORBITAL ELEMENTS
| Period (P) | 656.7036y | ± 318.7955 |
Periastron (T) | 1827.9361y | ± 2.6721 |
Semi-major axis (a) | 4.98567a | ± 1.47708 |
| Eccentricity (e) | 0.77131 | ± 0.06445 |
Inclination (i) | 23.176° | ± 22.689 |
Longitude of periastron (ω) | 76.808° | ± 34.215 |
| Node (Ω) | 0.969° | ± 44.769 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
236.0 |
6.977 |
| 2001 |
236.2 |
6.994 |
| 2002 |
236.3 |
7.010 |
| 2003 |
236.5 |
7.027 |
| 2004 |
236.7 |
7.043 |
| 2005 |
236.8 |
7.059 |
| 2006 |
237.0 |
7.075 |
| 2007 |
237.1 |
7.091 |
| 2008 |
237.3 |
7.107 |
| 2009 |
237.4 |
7.122 |
| 2010 |
237.6 |
7.138 |
| 2011 |
237.8 |
7.153 |
| 2012 |
237.9 |
7.168 |
| 2013 |
238.1 |
7.183 |
| 2014 |
238.2 |
7.198 |
| 2015 |
238.4 |
7.213 |
| 2016 |
238.5 |
7.227 |
| 2017 |
238.7 |
7.242 |
| 2018 |
238.8 |
7.256 |
| 2019 |
239.0 |
7.271 |
| 2020 |
239.1 |
7.285 |
| 2021 |
239.3 |
7.299 |
| 2022 |
239.4 |
7.313 |
| 2023 |
239.6 |
7.326 |
| 2024 |
239.7 |
7.340 |
| 2025 |
239.9 |
7.353 |
| 2026 |
240.0 |
7.367 |
| 2027 |
240.2 |
7.380 |
| 2028 |
240.3 |
7.393 |
| 2029 |
240.5 |
7.406 |
| 2030 |
240.6 |
7.419 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
SUSPECTED ORBITAL ELEMENTS
| Identifier | 16147+3352 STF2032 Aa,Ab |
| coord_arcsec_2000 | 161440.85+335131.0 |
| Period (P) | 1641.299649m | ± 0.000115 |
Periastron (T) | 50127.04855d (1996.119y) | ± 0.0002 |
Semi-major axis (a) | 1.225m | ± 0.013 |
| Eccentricity (e) | 0 | |
Inclination (i) | 28.08° | ± 0.34 |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 207.93° | ± 0.67 |
Notes | n | |
Reference | Rag2009 | |
| Equinox | 2000 | |
Last observation | 2007 | |
Grade | 8 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
268.9 |
0.001 |
| 2001 |
198.0 |
0.001 |
| 2002 |
122.1 |
0.001 |
| 2003 |
44.5 |
0.001 |
| 2004 |
334.8 |
0.001 |
| 2005 |
252.7 |
0.001 |
| 2006 |
184.0 |
0.001 |
| 2007 |
104.6 |
0.001 |
| 2008 |
30.7 |
0.001 |
| 2009 |
318.2 |
0.001 |
| 2010 |
237.7 |
0.001 |
| 2011 |
169.3 |
0.001 |
| 2012 |
87.6 |
0.001 |
| 2013 |
17.0 |
0.001 |
| 2014 |
300.8 |
0.001 |
| 2015 |
223.4 |
0.001 |
| 2016 |
153.6 |
0.001 |
| 2017 |
71.6 |
0.001 |
| 2018 |
2.9 |
0.001 |
| 2019 |
283.3 |
0.001 |
| 2020 |
209.6 |
0.001 |
| 2021 |
136.9 |
0.001 |
| 2022 |
56.6 |
0.001 |
| 2023 |
348.1 |
0.001 |
| 2024 |
266.4 |
0.001 |
| 2025 |
195.9 |
0.001 |
| 2026 |
119.5 |
0.001 |
| 2027 |
42.4 |
0.001 |
| 2028 |
332.4 |
0.001 |
| 2029 |
250.4 |
0.001 |
| 2030 |
181.9 |
0.001 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
