21166+4448 ES 97
21h 16m 32.74s +44° 48' 36.6" P.A. 290.00 sep 7.5 mag 9.98,10.90
Coord 2000 |
21166+4448 |
|
Discov num |
ES 97 |
|
Comp |
|
|
Coord arcsec 2000 |
21 16 32.74 +44 48 36.6 |
|
Date first |
1893 |
|
Date last |
2018 |
|
Obs |
15 |
|
Pa first |
291 |
|
Pa last |
290 |
|
P.A. Now (θ) |
290° |
|
Sep first |
7.8 |
|
Sep last |
7.491 |
|
Sep. Now (ρ) |
7.491" |
|
Mag pri |
9.98 |
|
Mag sec |
10.90 |
|
delta mag (ΔM) |
0.92 |
|
Spectral class |
|
|
Pri motion ra |
+013 |
|
Sec motion ra |
+009 |
|
Pri motion dec |
+010 |
|
Sec motion dec |
+011 |
|
Notes |
|
|
rPM=0.251 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3181-00293-1 |
|
Gaia DR2 |
1971771072722251136 |
|