21391+5500 STI 2580
21h 39m 03.17s +54° 59' 41.9" P.A. 31.00 sep 5.2 mag 11.50,11.90
| Coord 2000 |
21391+5500 |
|
Discov num |
STI2580 |
|
Comp |
|
|
Coord arcsec 2000 |
21 39 03.17 +54 59 41.9 |
|
| Date first |
1905 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
32 |
|
Pa last |
30.5 |
|
P.A. Now (θ) |
30.5° |
|
| Sep first |
5.2 |
|
Sep last |
5.216 |
|
Sep. Now (ρ) |
5.216" |
|
| Mag pri |
11.50 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
0.4 |
|
Spectral class |
|
|
| Pri motion ra |
-004 |
|
Sec motion ra |
+010 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=1.632
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3971-01250-1 |
|
Gaia DR2 |
2174588190174368384 |
|
