18384+6708 STF 2384 AB,C (HD 173084)
18h 38m 23.66s +67° 07' 35.6" P.A. 162.00 sep 136.5 mag 7.78,12.50 Sp G5 dist. 53.82 pc (175.56 l.y.)
| Coord 2000 |
18384+6708 |
|
Discov num |
STF2384 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
18 38 23.66 +67 07 35.6 |
|
| Date first |
1910 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
167 |
|
Pa last |
162.2 |
|
P.A. Now (θ) |
162.2° |
|
| Sep first |
113.5 |
|
Sep last |
136.517 |
|
Sep. Now (ρ) |
136.517" |
|
| Mag pri |
7.78 |
|
Mag sec |
12.50 |
|
delta mag (ΔM) |
4.72 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-138 |
|
Sec motion ra |
|
|
| Pri motion dec |
+196 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18384+6708 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
17964 |
18 38 24 +67 07 36 |
STF 2384 AB |
2020 |
102 |
307 |
0.4 |
8.31 |
8.95 |
0.64 |
Y |
|
| Show |
HD 173084 |
17964 |
18 38 24 +67 07 36 |
STF 2384 AB,C |
2015 |
8 |
162 |
136.5 |
7.78 |
12.50 |
4.72 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 173084 |
|
Constellation |
Draco |
|
SAO |
17964 |
|
HIP |
91395 |
|
| Tycho2 |
4227-00251-1 |
|
Gaia DR2 |
2258633214027998976 |
|
HD |
173084 |
|
BD |
BD+67 1087 |
|
| Distance |
53.82 |
|
Distance ly |
175.56 |
|
