19448+2916 ISM 4 Aa,Ab
19h 44m 48.74s +29° 15' 52.9" P.A. 167.00 sep 0.0 mag 7.00,8.00 Sp F2Iab+B8V dist. 787.4 pc (2568.5 l.y.)
Coord 2000 |
19448+2916 |
|
Discov num |
ISM 4 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
19 44 48.74 +29 15 52.9 |
|
Date first |
1949 |
|
Date last |
1988 |
|
Obs |
4 |
|
Pa first |
119 |
|
Pa last |
166.7 |
|
P.A. Now (θ) |
166.7° |
|
Sep first |
0.1 |
|
Sep last |
0.041 |
|
Sep. Now (ρ) |
0.041" |
|
Mag pri |
7.00 |
|
Mag sec |
8.00 |
|
delta mag (ΔM) |
1 |
|
Spectral class |
F2Iab+B8V (yellow-white/blue-white) |
|
Pri motion ra |
+000 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
19448+2916 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
87659 |
19 44 49 +29 15 53 |
ISM 4 Aa,Ab |
1988 |
4 |
167 |
0.0 |
7.00 |
8.00 |
1.00 |
|
<=== |
Show |
SU Cyg |
87659 |
19 44 49 +29 15 53 |
WRH 23 AE |
2015 |
10 |
289 |
24.8 |
7.03 |
10.54 |
3.51 |
|
|
Show |
|
87659 |
19 44 49 +29 15 53 |
WRH 23 AF |
2015 |
9 |
18 |
71.1 |
7.03 |
10.88 |
3.85 |
|
|
Show |
|
87659 |
19 44 49 +29 15 53 |
WRH 23 AG |
2015 |
9 |
88 |
75.9 |
7.03 |
10.21 |
3.18 |
|
|
Show |
|
87659 |
19 44 49 +29 15 53 |
EVS 42 AH |
2015 |
2 |
87 |
25.4 |
6.90 |
16.90 |
10.00 |
|
|
Show |
|
87659 |
19 44 49 +29 15 53 |
KRV 40 AI |
2015 |
1 |
34 |
42.4 |
6.90 |
19.20 |
12.30 |
|
|
Septuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
SU Cyg |
|
Constellation |
Cygnus |
|
SAO |
87659 |
|
HIP |
97150 |
|
Tycho2 |
2151-05896-1 |
|
Gaia DR2 |
2031776202613700480 |
|
HD |
186688 |
|
HR |
7518 |
|
BD |
BD+28 3460 |
|
Distance |
787.4 |
|
Distance ly |
2568.5 |
|