19500+1757 H 4 99 AB (HD 187566)
19h 49m 59.91s +17° 57' 26.0" P.A. 83.00 sep 25.6 mag 7.99,11.07 Sp B7Vp+B9V
| Coord 2000 |
19500+1757 |
|
Discov num |
H 4 99 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 49 59.91 +17 57 26.0 |
|
| Date first |
1782 |
|
Date last |
2018 |
|
Obs |
17 |
|
| Pa first |
90 |
|
Pa last |
83.2 |
|
P.A. Now (θ) |
83.2° |
|
| Sep first |
21.4 |
|
Sep last |
25.64 |
|
Sep. Now (ρ) |
25.64" |
|
| Mag pri |
7.99 |
|
Mag sec |
11.07 |
|
delta mag (ΔM) |
3.08 |
|
Spectral class |
B7Vp+B9V (blue-white/blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+007 |
|
| Pri motion dec |
-012 |
|
Sec motion dec |
+000 |
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=1.114
This double is not physical.
19500+1757 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 187566 |
105324 |
19 49 60 +17 57 26 |
H 4 99 AB |
2018 |
17 |
83 |
25.6 |
7.99 |
11.07 |
3.08 |
|
<=== |
| Show |
|
105324 |
19 49 60 +17 57 26 |
H 4 99 AC |
2018 |
23 |
256 |
68.8 |
7.99 |
9.10 |
1.11 |
|
|
| Show |
|
105324 |
19 49 60 +17 57 26 |
H 4 99 AD |
2018 |
11 |
340 |
44.1 |
7.99 |
13.23 |
5.24 |
|
|
| Show |
|
105324 |
19 49 60 +17 57 26 |
ABH 126 AE |
2018 |
10 |
143 |
71.0 |
7.99 |
13.42 |
5.43 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 187566 |
|
Constellation |
Sagitta |
|
SAO |
105324 |
|
Tycho2 |
1619-02489-1 |
|
| Gaia DR2 |
1821439903076671488 |
|
HD |
187566 |
|