19306+2817 BU 651 AB
19h 30m 33.77s +28° 16' 51.3" P.A. 287.00 sep 6.4 mag 8.89,12.90 Sp F2
| Coord 2000 |
19306+2817 |
|
Discov num |
BU 651 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 30 33.77 +28 16 51.3 |
|
| Date first |
1878 |
|
Date last |
2015 |
|
Obs |
24 |
|
| Pa first |
290 |
|
Pa last |
287.2 |
|
P.A. Now (θ) |
287.2° |
|
| Sep first |
6.4 |
|
Sep last |
6.411 |
|
Sep. Now (ρ) |
6.411" |
|
| Mag pri |
8.89 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
4.01 |
|
Spectral class |
F2 (yellow-white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
+000 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=1.7
This double is not physical.
19306+2817 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
19 30 34 +28 16 51 |
COU 1161 Aa,Ab |
2013 |
11 |
16 |
0.2 |
8.10 |
8.90 |
0.80 |
|
|
| Show |
|
|
19 30 34 +28 16 51 |
COU 1161 Aa,Ac |
2014 |
4 |
314 |
0.2 |
8.10 |
8.80 |
0.70 |
|
|
| Show |
|
|
19 30 34 +28 16 51 |
BU 651 AB |
2015 |
24 |
287 |
6.4 |
8.89 |
12.90 |
4.01 |
|
<=== |
Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2137-01457-1 |
|
Gaia DR2 |
2026176286797361536 |
|
