20045-2342 BWL 54 AB
20h 04m 30.78s -23° 42' 01.9" P.A. 261.00 sep 2.3 mag 7.70,17.70 Sp M4.5
| Coord 2000 |
20045-2342 |
|
Discov num |
BWL 54 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 04 30.78 -23 42 01.9 |
|
| Date first |
2011 |
|
Date last |
2012 |
|
Obs |
2 |
|
| Pa first |
252 |
|
Pa last |
260.7 |
|
P.A. Now (θ) |
260.7° |
|
| Sep first |
2.3 |
|
Sep last |
2.34 |
|
Sep. Now (ρ) |
2.34" |
|
| Mag pri |
7.70 |
|
Mag sec |
17.70 |
|
delta mag (ΔM) |
10 |
|
Spectral class |
M4.5 (red) |
|
| Pri motion ra |
+123 |
|
Sec motion ra |
|
|
| Pri motion dec |
-339 |
|
Sec motion dec |
|
|
| Notes |
U
K
(Proper motion indicates non-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 not physical.
20045-2342 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 04 31 -23 42 02 |
BWL 54 AB |
2012 |
2 |
261 |
2.3 |
7.70 |
17.70 |
10.00 |
|
<=== |
| Show |
|
|
20 04 31 -23 42 02 |
BWL 54 AC |
2012 |
2 |
0 |
6.4 |
7.70 |
18.10 |
10.40 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|