08317+1924 BEU 12 Aa,Ab (CU Cnc)
08h 31m 37.58s +19° 23' 39.5" P.A. 223.00 sep 0.3 mag 11.70,17.10 Sp M3.5 dist. 11.07 pc (36.11 l.y.)
| Coord 2000 |
08317+1924 |
|
Discov num |
BEU 12 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
08 31 37.58 +19 23 39.5 |
|
| Date first |
1999 |
|
Date last |
2020 |
|
Obs |
11 |
|
| Pa first |
157 |
|
Pa last |
222.9 |
|
P.A. Now (θ) |
222.9° |
|
| Sep first |
0.7 |
|
Sep last |
0.345 |
|
Sep. Now (ρ) |
0.345" |
|
| Mag pri |
11.70 |
|
Mag sec |
17.10 |
|
delta mag (ΔM) |
5.4 |
|
Spectral class |
M3.5 (red) |
|
| Pri motion ra |
-229 |
|
Sec motion ra |
|
|
| Pri motion dec |
-087 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
08317+1924 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
CU Cnc |
|
08 31 38 +19 23 40 |
BEU 12 Aa,Ab |
2020 |
11 |
223 |
0.3 |
11.70 |
17.10 |
5.40 |
Y |
<=== |
| Show |
|
|
08 31 38 +19 23 40 |
LDS 905 AB |
2020 |
14 |
348 |
10.0 |
11.70 |
13.40 |
1.70 |
|
|
| Show |
|
|
08 31 38 +19 23 40 |
LMP 40 AC |
2001 |
2 |
308 |
21.5 |
11.70 |
15.80 |
4.10 |
|
|
| Show |
|
|
08 31 37 +19 23 50 |
DEL 1 Ba,Bb |
2020 |
11 |
176 |
0.9 |
13.80 |
14.80 |
1.00 |
Y |
|
Quintuple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
CU Cnc |
|
Constellation |
Cancer |
|
HIP |
41824 |
|
Gaia DR2 |
662732046688476288 |
|
| GL |
GJ 2069A |
|
Distance |
11.07 |
|
Distance ly |
36.11 |
|
ORBITAL ELEMENTS
| Period (P) | 66y | |
Periastron (T) | 1993.29y | |
Semi-major axis (a) | 0.977a | |
| Eccentricity (e) | 0.653 | |
Inclination (i) | 78.3° | |
Longitude of periastron (ω) | 273.7° | |
| Node (Ω) | 152.5° | |
Notes | n | |
Reference | Tok2021c | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
159.0 |
0.686 |
| 2001 |
160.7 |
0.702 |
| 2002 |
162.3 |
0.710 |
| 2003 |
163.9 |
0.711 |
| 2004 |
165.5 |
0.705 |
| 2005 |
167.1 |
0.695 |
| 2006 |
168.8 |
0.681 |
| 2007 |
170.5 |
0.664 |
| 2008 |
172.4 |
0.644 |
| 2009 |
174.4 |
0.622 |
| 2010 |
176.6 |
0.599 |
| 2011 |
178.9 |
0.574 |
| 2012 |
181.4 |
0.548 |
| 2013 |
184.2 |
0.521 |
| 2014 |
187.3 |
0.495 |
| 2015 |
190.8 |
0.468 |
| 2016 |
194.6 |
0.443 |
| 2017 |
199.0 |
0.418 |
| 2018 |
203.8 |
0.395 |
| 2019 |
209.2 |
0.375 |
| 2020 |
215.2 |
0.357 |
| 2021 |
221.7 |
0.343 |
| 2022 |
228.8 |
0.333 |
| 2023 |
236.1 |
0.327 |
| 2024 |
243.6 |
0.326 |
| 2025 |
251.1 |
0.331 |
| 2026 |
258.2 |
0.340 |
| 2027 |
264.9 |
0.353 |
| 2028 |
271.0 |
0.370 |
| 2029 |
276.6 |
0.390 |
| 2030 |
281.6 |
0.412 |
|
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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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