20311+4203 CAN 2 Aa,Ab
20h 31m 08.38s +42° 02' 42.3" P.A. 258.00 sep 0.3 mag 11.80,15.00 Sp O9.7II
| Coord 2000 |
20311+4203 |
|
Discov num |
CAN 2 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
20 31 08.38 +42 02 42.3 |
|
| Date first |
2006 |
|
Date last |
2008 |
|
Obs |
3 |
|
| Pa first |
276 |
|
Pa last |
258.3 |
|
P.A. Now (θ) |
258.3° |
|
| Sep first |
0.4 |
|
Sep last |
0.34 |
|
Sep. Now (ρ) |
0.34" |
|
| Mag pri |
11.80 |
|
Mag sec |
15.00 |
|
delta mag (ΔM) |
3.2 |
|
Spectral class |
O9.7II (blue) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
|
|
| Pri motion dec |
-001 |
|
Sec motion dec |
|
|
| Notes |
V
(Proper motion indicates physical) |
|
This double is physical.
20311+4203 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 31 08 +42 02 42 |
CAN 2 Aa,Ab |
2008 |
3 |
258 |
0.3 |
11.80 |
15.00 |
3.20 |
|
<=== |
| Show |
|
|
20 31 08 +42 02 42 |
CAN 25 AB |
2008 |
2 |
221 |
4.2 |
7.00 |
15.40 |
8.40 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
