20183+2539 WAL 131 AE
20h 18m 17.06s +25° 38' 53.7" P.A. 151.00 sep 122.8 mag 6.96,8.13 Sp B2V dist. 543.48 pc (1772.83 l.y.)
| Coord 2000 |
20183+2539 |
|
Discov num |
WAL 131 |
|
Comp |
AE |
|
Coord arcsec 2000 |
20 18 17.06 +25 38 53.7 |
|
| Date first |
1898 |
|
Date last |
2015 |
|
Obs |
22 |
|
| Pa first |
152 |
|
Pa last |
151.2 |
|
P.A. Now (θ) |
151.2° |
|
| Sep first |
122.4 |
|
Sep last |
122.826 |
|
Sep. Now (ρ) |
122.826" |
|
| Mag pri |
6.96 |
|
Mag sec |
8.13 |
|
delta mag (ΔM) |
1.17 |
|
Spectral class |
B2V (blue-white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
+005 |
|
Sec motion dec |
-001 |
|
| Notes |
N
(See Notes) |
|
rPM=1.103
This double is not physical.
20183+2539 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
88490 |
20 18 17 +25 38 54 |
BU 985 AB |
2009 |
8 |
153 |
5.9 |
6.99 |
12.80 |
5.81 |
|
|
| Show |
HD 193220 |
88490 |
20 18 17 +25 38 54 |
HJ 1499 AC |
2015 |
22 |
355 |
21.5 |
6.96 |
10.87 |
3.91 |
|
|
| Show |
|
88490 |
20 18 17 +25 38 54 |
WAL 131 AE |
2015 |
22 |
151 |
122.8 |
6.96 |
8.13 |
1.17 |
|
<=== |
| Show |
|
|
20 18 17 +25 39 15 |
BU 985 CD |
2015 |
13 |
67 |
8.6 |
10.87 |
13.60 |
2.73 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Vulpecula |
|
SAO |
88490 |
|
HIP |
100093 |
|
Tycho2 |
2159-00108-1 |
|
| Gaia DR2 |
1835372605164694144 |
|
HD |
193239 |
|
BD |
BD+25 4190 |
|
Distance |
543.48 |
|
| Distance ly |
1772.83 |
|
