18417+5108 HU 754 AB (HD 173287)
18h 41m 44.99s +51° 07' 33.6" P.A. 94.00 sep 1.3 mag 8.36,11.53 Sp A2 dist. 318.47 pc (1038.85 l.y.)
| Coord 2000 |
18417+5108 |
|
Discov num |
HU 754 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 41 44.99 +51 07 33.6 |
|
| Date first |
1904 |
|
Date last |
2016 |
|
Obs |
6 |
|
| Pa first |
91 |
|
Pa last |
93.5 |
|
P.A. Now (θ) |
93.5° |
|
| Sep first |
1.4 |
|
Sep last |
1.317 |
|
Sep. Now (ρ) |
1.317" |
|
| Mag pri |
8.36 |
|
Mag sec |
11.53 |
|
delta mag (ΔM) |
3.17 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+003 |
|
| Pri motion dec |
+003 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=0.62
Nature of this double is uncertain.
18417+5108 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
31111 |
18 41 45 +51 07 34 |
HU 754 Aa,Ab |
2016 |
2 |
28 |
0.1 |
8.36 |
|
|
|
|
| Show |
HD 173287 |
31111 |
18 41 45 +51 07 34 |
HU 754 AB |
2016 |
6 |
94 |
1.3 |
8.36 |
11.53 |
3.17 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 173287 |
|
Constellation |
Draco |
|
SAO |
31111 |
|
HIP |
91680 |
|
| Tycho2 |
3539-00690-1 |
|
HD |
173287 |
|
BD |
BD+50 2651 |
|
Distance |
318.47 |
|
| Distance ly |
1038.85 |
|
