21005+5709 STI 2557
21h 00m 28.17s +57° 08' 04.1" P.A. 131.00 sep 8.1 mag 11.90,12.50
| Coord 2000 |
21005+5709 |
|
Discov num |
STI2557 |
|
Comp |
|
|
Coord arcsec 2000 |
21 00 28.17 +57 08 04.1 |
|
| Date first |
1917 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
121 |
|
Pa last |
130.8 |
|
P.A. Now (θ) |
130.8° |
|
| Sep first |
8.1 |
|
Sep last |
8.051 |
|
Sep. Now (ρ) |
8.051" |
|
| Mag pri |
11.90 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
|
|
| Pri motion ra |
-001 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
-010 |
|
| Notes |
|
|
rPM=1.3
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
Gaia DR2 |
2189305844809326720 |
|
