21580+6722 MLB 307 BC
21h 57m 56.12s +67° 22' 05.4" P.A. 152.00 sep 3.1 mag 12.29,12.80
| Coord 2000 |
21580+6722 |
|
Discov num |
MLB 307 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 57 56.12 +67 22 05.4 |
|
| Date first |
1923 |
|
Date last |
2015 |
|
Obs |
4 |
|
| Pa first |
157 |
|
Pa last |
151.5 |
|
P.A. Now (θ) |
151.5° |
|
| Sep first |
3.9 |
|
Sep last |
3.106 |
|
Sep. Now (ρ) |
3.106" |
|
| Mag pri |
12.29 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
0.51 |
|
Spectral class |
|
|
| Pri motion ra |
+000 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
+008 |
|
Sec motion dec |
-038 |
|
| Notes |
|
|
rPM=1.21
This double is not physical.
21580+6722 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 57 59 +67 23 06 |
MLB 307 AB |
2015 |
8 |
194 |
62.0 |
10.91 |
12.29 |
1.38 |
|
|
| Show |
|
|
21 57 56 +67 22 05 |
MLB 307 BC |
2015 |
4 |
152 |
3.1 |
12.29 |
12.80 |
0.51 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
Tycho2 |
4274-00545-1 |
|
Gaia DR2 |
2219681704649646720 |
|
