17581+5213 WAL 87 AC
17h 58m 05.37s +52° 13' 06.0" P.A. 57.00 sep 64.4 mag 7.56,12.07 Sp A2 dist. 113.64 pc (370.69 l.y.)
| Coord 2000 |
17581+5213 |
|
Discov num |
WAL 87 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 58 05.37 +52 13 06.0 |
|
| Date first |
1944 |
|
Date last |
2018 |
|
Obs |
3 |
|
| Pa first |
40 |
|
Pa last |
57.4 |
|
P.A. Now (θ) |
57.4° |
|
| Sep first |
60.0 |
|
Sep last |
64.44 |
|
Sep. Now (ρ) |
64.44" |
|
| Mag pri |
7.56 |
|
Mag sec |
12.07 |
|
delta mag (ΔM) |
4.51 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-024 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
17581+5213 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 164394 |
30665 |
17 58 05 +52 13 06 |
STF 2261 AB |
2018 |
31 |
261 |
9.6 |
7.56 |
10.02 |
2.46 |
|
|
| Show |
|
30665 |
17 58 05 +52 13 06 |
WAL 87 AC |
2018 |
3 |
57 |
64.4 |
7.56 |
12.07 |
4.51 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Draco |
|
SAO |
30665 |
|
HIP |
87960 |
|
Tycho2 |
3523-00314-1 |
|
| Gaia DR2 |
1367936092956367232 |
|
HD |
164394 |
|
BD |
BD+52 2119 |
|
Distance |
113.64 |
|
| Distance ly |
370.69 |
|
