18390+5559 A 1380 AB,C
18h 39m 02.89s +55° 59' 24.4" P.A. 332.00 sep 11.8 mag 9.65,14.00 Sp G0
| Coord 2000 |
18390+5559 |
|
Discov num |
A 1380 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
18 39 02.89 +55 59 24.4 |
|
| Date first |
1916 |
|
Date last |
2015 |
|
Obs |
9 |
|
| Pa first |
333 |
|
Pa last |
332.4 |
|
P.A. Now (θ) |
332.4° |
|
| Sep first |
11.8 |
|
Sep last |
11.775 |
|
Sep. Now (ρ) |
11.775" |
|
| Mag pri |
9.65 |
|
Mag sec |
14.00 |
|
delta mag (ΔM) |
4.35 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+010 |
|
Sec motion ra |
+011 |
|
| Pri motion dec |
+021 |
|
Sec motion dec |
+021 |
|
| Notes |
|
|
rPM=0.042 (< 0.3, Physical double)
This double is physical.
18390+5559 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 238916 |
31088 |
18 39 03 +55 59 24 |
A 1380 AB |
2016 |
17 |
20 |
1.0 |
10.50 |
10.32 |
0.18 |
|
|
| Show |
|
31088 |
18 39 03 +55 59 24 |
A 1380 AB,C |
2015 |
9 |
332 |
11.8 |
9.65 |
14.00 |
4.35 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Draco |
|
SAO |
31088 |
|
Tycho2 |
3909-00609-2 |
|
Gaia DR2 |
2148078556806865664 |
|
