20396+1555 CIA 23 Ab1,2
20h 39m 38.25s +15° 54' 43.4" P.A. 250.00 sep 0.0 mag 3.86,6.43 Sp B9IV dist. 77.82 pc (253.85 l.y.)
| Coord 2000 |
20396+1555 |
|
Discov num |
CIA 23 |
|
Comp |
Ab1,2 |
|
Coord arcsec 2000 |
20 39 38.25 +15 54 43.4 |
|
| Date first |
2018 |
|
Date last |
2019 |
|
Obs |
11 |
|
| Pa first |
235 |
|
Pa last |
249.7 |
|
P.A. Now (θ) |
249.7° |
|
| Sep first |
0.0 |
|
Sep last |
0.003 |
|
Sep. Now (ρ) |
0.003" |
|
| Mag pri |
3.86 |
|
Mag sec |
6.43 |
|
delta mag (ΔM) |
2.57 |
|
Spectral class |
B9IV (blue-white) |
|
| Pri motion ra |
+066 |
|
Sec motion ra |
|
|
| Pri motion dec |
-002 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
20396+1555 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
106357 |
20 39 38 +15 54 43 |
WCK 2 Aa,Ab |
2019 |
92 |
289 |
0.1 |
3.86 |
6.43 |
2.57 |
Y |
|
| Show |
|
106357 |
20 39 38 +15 54 43 |
CIA 23 Ab1,2 |
2019 |
11 |
250 |
0.0 |
3.86 |
6.43 |
2.57 |
|
<=== |
| Show |
|
106357 |
20 39 38 +15 54 43 |
BU 298 AB |
2015 |
11 |
233 |
35.5 |
3.86 |
13.40 |
9.54 |
|
|
| Show |
Sualocin |
106357 |
20 39 38 +15 54 43 |
HJ 1554 AC |
2017 |
15 |
277 |
48.4 |
3.86 |
11.90 |
8.04 |
|
|
| Show |
|
106357 |
20 39 38 +15 54 43 |
BU 298 AD |
2015 |
13 |
160 |
45.4 |
3.86 |
12.90 |
9.04 |
|
|
| Show |
|
106357 |
20 39 38 +15 54 43 |
BU 298 AE |
2015 |
12 |
304 |
57.2 |
3.86 |
12.60 |
8.74 |
|
|
| Show |
|
106357 |
20 39 38 +15 54 43 |
BU 298 AF |
2015 |
12 |
118 |
72.2 |
3.86 |
10.70 |
6.84 |
|
|
Octuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV13207 Del |
|
Constellation |
Delphinus |
|
SAO |
106357 |
|
HIP |
101958 |
|
| Tycho2 |
1633-02442-1 |
|
HD |
196867 |
|
HR |
7906 |
|
GC |
28780 |
|
| ADS |
14121 |
|
BD |
BD+15 4222 |
|
Bayer |
Alpha Delphini |
|
Bayer name |
Alp Del |
|
| FK5 |
774 |
|
Distance |
77.82 |
|
Distance ly |
253.85 |
|
Bayer greek |
α Del |
|
