21309+4228 TDT 3004 AB
21h 30m 51.28s +42° 27' 34.9" P.A. 164.00 sep 5.9 mag 10.69,10.98
Coord 2000 |
21309+4228 |
|
Discov num |
TDT3004 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 30 51.28 +42 27 34.9 |
|
Date first |
1991 |
|
Date last |
2018 |
|
Obs |
9 |
|
Pa first |
179 |
|
Pa last |
163.7 |
|
P.A. Now (θ) |
163.7° |
|
Sep first |
6.2 |
|
Sep last |
5.933 |
|
Sep. Now (ρ) |
5.933" |
|
Mag pri |
10.69 |
|
Mag sec |
10.98 |
|
delta mag (ΔM) |
0.29 |
|
Spectral class |
|
|
Pri motion ra |
-005 |
|
Sec motion ra |
+055 |
|
Pri motion dec |
-007 |
|
Sec motion dec |
+009 |
|
Notes |
W
|
|
rPM=1.114
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3191-01166-1 |
|