20308+3749 SEI 1147 AC
20h 30m 45.51s +37° 48' 58.8" P.A. 286.00 sep 14.5 mag 12.25,12.53
Coord 2000 |
20308+3749 |
|
Discov num |
SEI1147 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 30 45.51 +37 48 58.8 |
|
Date first |
1895 |
|
Date last |
2015 |
|
Obs |
8 |
|
Pa first |
280 |
|
Pa last |
285.6 |
|
P.A. Now (θ) |
285.6° |
|
Sep first |
18.7 |
|
Sep last |
14.462 |
|
Sep. Now (ρ) |
14.462" |
|
Mag pri |
12.25 |
|
Mag sec |
12.53 |
|
delta mag (ΔM) |
0.28 |
|
Spectral class |
|
|
Pri motion ra |
+003 |
|
Sec motion ra |
+035 |
|
Pri motion dec |
-001 |
|
Sec motion dec |
+010 |
|
Notes |
B
(Blue magnitudes) |
|
rPM=0.93
This double is not physical.
20308+3749 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
20 30 46 +37 48 59 |
SEI 1146 AB |
2015 |
9 |
42 |
10.2 |
12.25 |
12.27 |
0.02 |
|
|
Show |
|
|
20 30 46 +37 48 59 |
SEI 1147 AC |
2015 |
8 |
286 |
14.5 |
12.25 |
12.53 |
0.28 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
Gaia DR2 |
2063852182251302656 |
|