20375+3134 STFA 53 AC
20h 37m 31.77s +31° 34' 21.1" sep 71.3 mag 6.29,13.52 Sp B8IIIn dist. 261.78 pc (853.93 l.y.)
Coord 2000 |
20375+3134 |
|
Discov num |
STFA 53 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 37 31.77 +31 34 21.1 |
|
Date first |
1911 |
|
Date last |
2015 |
|
Obs |
4 |
|
Pa first |
1 |
|
Pa last |
0.3 |
|
P.A. Now (θ) |
0.3° |
|
Sep first |
71.2 |
|
Sep last |
71.34 |
|
Sep. Now (ρ) |
71.34" |
|
Mag pri |
6.29 |
|
Mag sec |
13.52 |
|
delta mag (ΔM) |
7.23 |
|
Spectral class |
B8IIIn (blue-white) |
|
Pri motion ra |
+009 |
|
Sec motion ra |
+008 |
|
Pri motion dec |
-000 |
|
Sec motion dec |
+004 |
|
Notes |
N
(See Notes) |
|
rPM=0.458
Nature of this double is uncertain.
20375+3134 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
48 Cyg |
70287 |
20 37 32 +31 34 21 |
STFA 53 AB |
2012 |
35 |
177 |
182.7 |
6.29 |
6.54 |
0.25 |
|
|
Show |
|
70287 |
20 37 32 +31 34 21 |
STFA 53 AC |
2015 |
4 |
0 |
71.3 |
6.29 |
13.52 |
7.23 |
|
<=== |
Show |
|
70287 |
20 37 32 +31 34 21 |
FYM 138 AH |
2012 |
3 |
89 |
111.0 |
6.29 |
14.00 |
7.71 |
|
|
Show |
|
70289 |
20 37 33 +31 31 19 |
FYM 138 BD |
2015 |
4 |
35 |
41.0 |
6.54 |
14.50 |
7.96 |
|
|
Show |
|
70289 |
20 37 33 +31 31 19 |
FYM 138 BE |
2015 |
4 |
29 |
58.4 |
6.54 |
14.40 |
7.86 |
|
|
Show |
|
70289 |
20 37 33 +31 31 19 |
FYM 138 BF |
2015 |
4 |
81 |
38.8 |
6.54 |
15.20 |
8.66 |
|
|
Show |
|
70289 |
20 37 33 +31 31 19 |
FYM 138 BG |
2015 |
4 |
83 |
62.5 |
6.54 |
15.00 |
8.46 |
|
|
Octuple system
8 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
SAO |
70287 |
|
HIP |
101765 |
|
Tycho2 |
2686-01751-1 |
|
Gaia DR2 |
1862667259759305216 |
|
HD |
196606 |
|
HR |
7885 |
|
GC |
28713 |
|
BD |
BD+31 4159 |
|
Flamsteed |
48 Cygni |
|
Flamsteed name |
48 Cyg |
|
Distance |
261.78 |
|
Distance ly |
853.93 |
|