20311+4203 CAN 25 AB
20h 31m 08.38s +42° 02' 42.3" P.A. 221.00 sep 4.2 mag 7.00,15.40 Sp O9.7II
Coord 2000 |
20311+4203 |
|
Discov num |
CAN 25 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 31 08.38 +42 02 42.3 |
|
Date first |
2008 |
|
Date last |
2008 |
|
Obs |
2 |
|
Pa first |
221 |
|
Pa last |
220.6 |
|
P.A. Now (θ) |
220.6° |
|
Sep first |
4.2 |
|
Sep last |
4.22 |
|
Sep. Now (ρ) |
4.22" |
|
Mag pri |
7.00 |
|
Mag sec |
15.40 |
|
delta mag (ΔM) |
8.4 |
|
Spectral class |
O9.7II (blue) |
|
Pri motion ra |
-003 |
|
Sec motion ra |
|
|
Pri motion dec |
-001 |
|
Sec motion dec |
|
|
Notes |
V
K
(Proper motion indicates physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
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