18407+1749 ROE 88 AB
18h 40m 41.38s +17° 49' 44.4" P.A. 131.00 sep 8.4 mag 12.60,12.60
| Coord 2000 |
18407+1749 |
|
Discov num |
ROE 88 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 40 41.38 +17 49 44.4 |
|
| Date first |
1915 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
114 |
|
Pa last |
130.9 |
|
P.A. Now (θ) |
130.9° |
|
| Sep first |
7.5 |
|
Sep last |
8.378 |
|
Sep. Now (ρ) |
8.378" |
|
| Mag pri |
12.60 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
|
|
| Pri motion ra |
-006 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
+009 |
|
Sec motion dec |
-013 |
|
| Notes |
|
|
rPM=1.581
This double is not physical.
18407+1749 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 40 41 +17 49 44 |
ROE 88 AB |
2015 |
10 |
131 |
8.4 |
12.60 |
12.60 |
0.00 |
|
<=== |
| Show |
|
|
18 40 41 +17 49 44 |
ROE 88 AC |
2015 |
10 |
330 |
35.5 |
12.60 |
13.50 |
0.90 |
|
|
| Show |
|
|
18 40 41 +17 49 44 |
WLY 11 AD |
2015 |
8 |
322 |
14.2 |
12.60 |
13.90 |
1.30 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4511972653240666368 |
|
