20244+4002 MLB 21
20h 24m 21.52s +40° 02' 47.1" P.A. 15.00 sep 8.8 mag 11.70,12.00
| Coord 2000 |
20244+4002 |
|
Discov num |
MLB 21 |
|
Comp |
|
|
Coord arcsec 2000 |
20 24 21.52 +40 02 47.1 |
|
| Date first |
1917 |
|
Date last |
2019 |
|
Obs |
43 |
|
| Pa first |
333 |
|
Pa last |
14.6 |
|
P.A. Now (θ) |
14.6° |
|
| Sep first |
5.6 |
|
Sep last |
8.797 |
|
Sep. Now (ρ) |
8.797" |
|
| Mag pri |
11.70 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
0.3 |
|
Spectral class |
|
|
| Pri motion ra |
-037 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-039 |
|
Sec motion dec |
+026 |
|
| Notes |
|
|
rPM=1.41
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Gaia DR2 |
2067474836848106496 |
|
ADS |
13821 |
|
