21453+2501 BKO 491 BC
21h 45m 18.86s +25° 00' 08.3" P.A. 263.00 sep 3.1 mag 14.50,14.58 Sp MS MS
| Coord 2000 |
21453+2501 |
|
Discov num |
BKO 491 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 45 18.86 +25 00 08.3 |
|
| Date first |
2016 |
|
Date last |
2016 |
|
Obs |
1 |
|
| Pa first |
263 |
|
Pa last |
263.1 |
|
P.A. Now (θ) |
263.1° |
|
| Sep first |
3.1 |
|
Sep last |
3.055 |
|
Sep. Now (ρ) |
3.055" |
|
| Mag pri |
14.50 |
|
Mag sec |
14.58 |
|
delta mag (ΔM) |
0.08 |
|
Spectral class |
MS MS (red/red) |
|
| Pri motion ra |
+015 |
|
Sec motion ra |
+015 |
|
| Pri motion dec |
-017 |
|
Sec motion dec |
-018 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.043 (< 0.3, Physical double)
This double is physical.
21453+2501 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 45 18 +25 00 12 |
POU 5486 AB |
2015 |
5 |
116 |
8.2 |
13.60 |
13.80 |
0.20 |
|
|
| Show |
|
|
21 45 18 +25 00 12 |
BKO 491 AC |
2015 |
3 |
132 |
5.9 |
13.60 |
14.00 |
0.40 |
|
|
| Show |
|
|
21 45 19 +25 00 08 |
BKO 491 BC |
2016 |
1 |
263 |
3.1 |
14.50 |
14.58 |
0.08 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
