18355+2104 STF 2345 (HD 171704)
18h 35m 31.17s +21° 04' 27.1" P.A. 225.00 sep 12.3 mag 9.08,10.48 Sp G dist. 121.36 pc (395.88 l.y.)
Coord 2000 |
18355+2104 |
|
Discov num |
STF2345 |
|
Comp |
|
|
Coord arcsec 2000 |
18 35 31.17 +21 04 27.1 |
|
Date first |
1829 |
|
Date last |
2018 |
|
Obs |
70 |
|
Pa first |
183 |
|
Pa last |
224.8 |
|
P.A. Now (θ) |
224.8° |
|
Sep first |
7.4 |
|
Sep last |
12.28 |
|
Sep. Now (ρ) |
12.28" |
|
Mag pri |
9.08 |
|
Mag sec |
10.48 |
|
delta mag (ΔM) |
1.4 |
|
Spectral class |
G (yellow) |
|
Pri motion ra |
+046 |
|
Sec motion ra |
-005 |
|
Pri motion dec |
+002 |
|
Sec motion dec |
-004 |
|
Notes |
L
(Linear solution) |
|
rPM=1.115
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 171704 |
|
Constellation |
Hercules |
|
SAO |
86223 |
|
HIP |
91140 |
|
Tycho2 |
1582-01303-1 |
|
Gaia DR2 |
4525824609965907712 |
|
HD |
171704 |
|
GC |
25405 |
|
BD |
BD+20 3853 |
|
Distance |
121.36 |
|
Distance ly |
395.88 |
|