21154+3745 SMA 146
21h 15m 26.37s +37° 45' 08.7" P.A. 7.00 sep 4.5 mag 12.50,13.00
Coord 2000 |
21154+3745 |
|
Discov num |
SMA 146 |
|
Comp |
|
|
Coord arcsec 2000 |
21 15 26.37 +37 45 08.7 |
|
Date first |
1923 |
|
Date last |
2015 |
|
Obs |
4 |
|
Pa first |
5 |
|
Pa last |
6.9 |
|
P.A. Now (θ) |
6.9° |
|
Sep first |
4.4 |
|
Sep last |
4.462 |
|
Sep. Now (ρ) |
4.462" |
|
Mag pri |
12.50 |
|
Mag sec |
13.00 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
|
|
Pri motion ra |
-005 |
|
Sec motion ra |
+003 |
|
Pri motion dec |
-020 |
|
Sec motion dec |
+014 |
|
Notes |
|
|
rPM=1.694
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
1964772371975177472 |
|