21087+3719 SEI 1415
21h 08m 42.94s +37° 19' 30.4" P.A. 256.00 sep 31.7 mag 11.30,12.99
Coord 2000 |
21087+3719 |
|
Discov num |
SEI1415 |
|
Comp |
|
|
Coord arcsec 2000 |
21 08 42.94 +37 19 30.4 |
|
Date first |
1896 |
|
Date last |
2015 |
|
Obs |
9 |
|
Pa first |
256 |
|
Pa last |
255.7 |
|
P.A. Now (θ) |
255.7° |
|
Sep first |
28.3 |
|
Sep last |
31.722 |
|
Sep. Now (ρ) |
31.722" |
|
Mag pri |
11.30 |
|
Mag sec |
12.99 |
|
delta mag (ΔM) |
1.69 |
|
Spectral class |
|
|
Pri motion ra |
+025 |
|
Sec motion ra |
-006 |
|
Pri motion dec |
-003 |
|
Sec motion dec |
-009 |
|
Notes |
|
|
rPM=1.254
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
2713-00967-1 |
|
Gaia DR2 |
1868820504788771712 |
|