21012+3949 SEI 1369
21h 01m 12.81s +39° 47' 57.0" P.A. 309.00 sep 4.5 mag 12.02,12.20
| Coord 2000 |
21012+3949 |
|
Discov num |
SEI1369 |
|
Comp |
|
|
Coord arcsec 2000 |
21 01 12.81 +39 47 57.0 |
|
| Date first |
1892 |
|
Date last |
2020 |
|
Obs |
8 |
|
| Pa first |
307 |
|
Pa last |
308.6 |
|
P.A. Now (θ) |
308.6° |
|
| Sep first |
4.5 |
|
Sep last |
4.54 |
|
Sep. Now (ρ) |
4.54" |
|
| Mag pri |
12.02 |
|
Mag sec |
12.20 |
|
delta mag (ΔM) |
0.18 |
|
Spectral class |
|
|
| Pri motion ra |
-010 |
|
Sec motion ra |
-040 |
|
| Pri motion dec |
-014 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=0.817
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3172-01744-1 |
|
Gaia DR2 |
1873051593021295616 |
|
