17174+1939 COU 496 AC
17h 17m 24.44s +19° 38' 34.6" P.A. 250.00 sep 7.4 mag 11.30,12.80 Sp G0
| Coord 2000 |
17174+1939 |
|
Discov num |
COU 496 |
|
Comp |
AC |
|
Coord arcsec 2000 |
17 17 24.44 +19 38 34.6 |
|
| Date first |
1970 |
|
Date last |
2019 |
|
Obs |
11 |
|
| Pa first |
249 |
|
Pa last |
250.1 |
|
P.A. Now (θ) |
250.1° |
|
| Sep first |
7.1 |
|
Sep last |
7.35 |
|
Sep. Now (ρ) |
7.35" |
|
| Mag pri |
11.30 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
1.5 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
-050 |
|
| Pri motion dec |
+020 |
|
Sec motion dec |
+012 |
|
| Notes |
|
|
rPM=0.774
Nature of this double is uncertain.
17174+1939 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 17 24 +19 38 35 |
GII 244 Aa,Ab |
2013 |
1 |
14 |
0.2 |
12.10 |
12.10 |
0.00 |
|
|
| Show |
|
|
17 17 24 +19 38 35 |
COU 496 AB |
2016 |
4 |
172 |
0.8 |
11.30 |
12.80 |
1.50 |
|
|
| Show |
|
|
17 17 24 +19 38 35 |
COU 496 AC |
2019 |
11 |
250 |
7.4 |
11.30 |
12.80 |
1.50 |
|
<=== |
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1544-01668-1 |
|
Gaia DR2 |
4554658267304835072 |
|
