18593+5450 A 1387 AB
18h 59m 20.43s +54° 50' 12.5" P.A. 351.00 sep 0.3 mag 9.05,10.02 Sp A0
| Coord 2000 |
18593+5450 |
|
Discov num |
A 1387 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 59 20.43 +54 50 12.5 |
|
| Date first |
1906 |
|
Date last |
2016 |
|
Obs |
22 |
|
| Pa first |
2 |
|
Pa last |
351.4 |
|
P.A. Now (θ) |
351.4° |
|
| Sep first |
0.4 |
|
Sep last |
0.331 |
|
Sep. Now (ρ) |
0.331" |
|
| Mag pri |
9.05 |
|
Mag sec |
10.02 |
|
delta mag (ΔM) |
0.97 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
Nature of this double is uncertain.
18593+5450 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
31307 |
18 59 20 +54 50 12 |
A 1387 AB |
2016 |
22 |
351 |
0.3 |
9.05 |
10.02 |
0.97 |
|
<=== |
| Show |
HD 176868 |
31307 |
18 59 20 +54 50 12 |
MLR 575 AB,C |
2015 |
7 |
227 |
21.8 |
8.75 |
12.50 |
3.75 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Draco |
|
SAO |
31307 |
|
Tycho2 |
3923-00810-1 |
|
Gaia DR2 |
2152737668608664704 |
|
| HD |
176868 |
|
ADS |
11929 |
|
