17592+6409 STF 2273 AB (HD 164984)
17h 59m 13.71s +64° 08' 33.1" P.A. 282.00 sep 21.4 mag 7.31,7.63 Sp F4V+F5V dist. 73.1 pc (238.45 l.y.)
| Coord 2000 |
17592+6409 |
|
Discov num |
STF2273 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 59 13.71 +64 08 33.1 |
|
| Date first |
1823 |
|
Date last |
2019 |
|
Obs |
65 |
|
| Pa first |
286 |
|
Pa last |
282.1 |
|
P.A. Now (θ) |
282.1° |
|
| Sep first |
21.1 |
|
Sep last |
21.44 |
|
Sep. Now (ρ) |
21.44" |
|
| Mag pri |
7.31 |
|
Mag sec |
7.63 |
|
delta mag (ΔM) |
0.32 |
|
Spectral class |
F4V+F5V (yellow-white/yellow-white) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
+015 |
|
Sec motion dec |
+031 |
|
| Notes |
Z
(Parallax indicates components are physical) |
|
rPM=0.573
This double is physical.
17592+6409 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 164984 |
17717 |
17 59 14 +64 08 33 |
STF 2273 AB |
2019 |
65 |
282 |
21.4 |
7.31 |
7.63 |
0.32 |
|
<=== |
| Show |
|
17717 |
17 59 14 +64 08 33 |
STF 2273 AC |
2015 |
8 |
277 |
43.5 |
7.31 |
12.70 |
5.39 |
|
|
| Show |
|
17717 |
17 59 14 +64 08 33 |
STF 2273 AD |
2015 |
7 |
336 |
14.8 |
7.31 |
14.70 |
7.39 |
|
|
| Show |
|
|
17 59 11 +64 08 38 |
STF 2273 BC |
2015 |
11 |
271 |
22.4 |
7.63 |
12.70 |
5.07 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 164984 |
|
Constellation |
Draco |
|
SAO |
17717 |
|
HIP |
88071 |
|
| Tycho2 |
4208-01817-1 |
|
Gaia DR2 |
1439931598946548736 |
|
HD |
164984 |
|
GC |
24530 |
|
| BD |
BD+64 1237 |
|
Distance |
73.1 |
|
Distance ly |
238.45 |
|
