20183+2539 BU 985 CD
20h 18m 16.93s +25° 39' 15.2" P.A. 67.00 sep 8.6 mag 10.87,13.60 Sp A1V
| Coord 2000 |
20183+2539 |
|
Discov num |
BU 985 |
|
Comp |
CD |
|
Coord arcsec 2000 |
20 18 16.93 +25 39 15.2 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
62 |
|
Pa last |
66.5 |
|
P.A. Now (θ) |
66.5° |
|
| Sep first |
8.9 |
|
Sep last |
8.615 |
|
Sep. Now (ρ) |
8.615" |
|
| Mag pri |
10.87 |
|
Mag sec |
13.60 |
|
delta mag (ΔM) |
2.73 |
|
Spectral class |
A1V (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
|
|
| Pri motion dec |
+003 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
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 |
|
HIP |
100086 |
|
Gaia DR2 |
1835372605164697472 |
|
