08317+1924 DEL 1 Ba,Bb
08h 31m 37.44s +19° 23' 49.5" P.A. 176.00 sep 0.9 mag 13.80,14.80 Sp M4 dist. 11.07 pc (36.11 l.y.)
| Coord 2000 |
08317+1924 |
|
Discov num |
DEL 1 |
|
Comp |
Ba,Bb |
|
Coord arcsec 2000 |
08 31 37.44 +19 23 49.5 |
|
| Date first |
2000 |
|
Date last |
2020 |
|
Obs |
11 |
|
| Pa first |
219 |
|
Pa last |
176.1 |
|
P.A. Now (θ) |
176.1° |
|
| Sep first |
0.5 |
|
Sep last |
0.904 |
|
Sep. Now (ρ) |
0.904" |
|
| Mag pri |
13.80 |
|
Mag sec |
14.80 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
M4 (red) |
|
| Pri motion ra |
-203 |
|
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 |
662732115407952768 |
|
| GL |
GJ 2069A |
|
Distance |
11.07 |
|
Distance ly |
36.11 |
|
ORBITAL ELEMENTS
| Period (P) | 63.1y | |
Periastron (T) | 1989.5y | |
Semi-major axis (a) | 0.767a | |
| Eccentricity (e) | 0.327 | |
Inclination (i) | 117° | |
Longitude of periastron (ω) | 31.1° | |
| Node (Ω) | 11.6° | |
Notes | n | |
Reference | Tok2021c | |
| Equinox | 2000 | |
Last observation | 2021 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
221.1 |
0.514 |
| 2001 |
216.3 |
0.574 |
| 2002 |
212.3 |
0.630 |
| 2003 |
209.0 |
0.683 |
| 2004 |
206.1 |
0.732 |
| 2005 |
203.5 |
0.776 |
| 2006 |
201.3 |
0.816 |
| 2007 |
199.2 |
0.851 |
| 2008 |
197.3 |
0.882 |
| 2009 |
195.5 |
0.908 |
| 2010 |
193.8 |
0.929 |
| 2011 |
192.1 |
0.946 |
| 2012 |
190.6 |
0.959 |
| 2013 |
189.0 |
0.968 |
| 2014 |
187.5 |
0.973 |
| 2015 |
186.0 |
0.974 |
| 2016 |
184.4 |
0.971 |
| 2017 |
182.9 |
0.965 |
| 2018 |
181.3 |
0.955 |
| 2019 |
179.7 |
0.941 |
| 2020 |
178.1 |
0.925 |
| 2021 |
176.4 |
0.905 |
| 2022 |
174.6 |
0.882 |
| 2023 |
172.7 |
0.856 |
| 2024 |
170.6 |
0.828 |
| 2025 |
168.5 |
0.797 |
| 2026 |
166.1 |
0.764 |
| 2027 |
163.5 |
0.729 |
| 2028 |
160.7 |
0.692 |
| 2029 |
157.5 |
0.654 |
| 2030 |
153.9 |
0.615 |
|
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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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