21200+5436 SKF 1978 AB
21h 19m 58.57s +54° 35' 33.1" P.A. 298.00 sep 31.8 mag 10.33,10.48 Sp G0:+F5:
Coord 2000 |
21200+5436 |
|
Discov num |
SKF1978 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 19 58.57 +54 35 33.1 |
|
Date first |
1902 |
|
Date last |
2016 |
|
Obs |
13 |
|
Pa first |
298 |
|
Pa last |
298 |
|
P.A. Now (θ) |
298° |
|
Sep first |
31.7 |
|
Sep last |
31.758 |
|
Sep. Now (ρ) |
31.758" |
|
Mag pri |
10.33 |
|
Mag sec |
10.48 |
|
delta mag (ΔM) |
0.15 |
|
Spectral class |
G0:+F5: (yellow/yellow-white) |
|
Pri motion ra |
+026 |
|
Sec motion ra |
+027 |
|
Pri motion dec |
+012 |
|
Sec motion dec |
+013 |
|
Notes |
N
(See Notes) |
|
rPM=0.047 (< 0.3, Physical double)
This double is physical.
21200+5436 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 19 59 +54 35 33 |
TDT 2908 Aa,Ab |
2016 |
3 |
295 |
0.3 |
10.98 |
11.04 |
0.06 |
|
|
Show |
|
|
21 19 59 +54 35 33 |
SKF 1978 AB |
2016 |
13 |
298 |
31.8 |
10.33 |
10.48 |
0.15 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Tycho2 |
3957-01556-1 |
|