21390+2826 ES 520
21h 38m 58.86s +28° 26' 29.9" P.A. 36.00 sep 9.3 mag 11.20,11.70 Sp G0
Coord 2000 |
21390+2826 |
|
Discov num |
ES 520 |
|
Comp |
|
|
Coord arcsec 2000 |
21 38 58.86 +28 26 29.9 |
|
Date first |
1898 |
|
Date last |
2014 |
|
Obs |
15 |
|
Pa first |
42 |
|
Pa last |
35.9 |
|
P.A. Now (θ) |
35.9° |
|
Sep first |
6.8 |
|
Sep last |
9.271 |
|
Sep. Now (ρ) |
9.271" |
|
Mag pri |
11.20 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
G0 (yellow) |
|
Pri motion ra |
-004 |
|
Sec motion ra |
+020 |
|
Pri motion dec |
-015 |
|
Sec motion dec |
+010 |
|
Notes |
|
|
rPM=1.55
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS