18400+1724 SLE 231 AB
18h 40m 02.68s +17° 24' 07.8" P.A. 110.00 sep 17.8 mag 12.30,12.80
| Coord 2000 |
18400+1724 |
|
Discov num |
SLE 231 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 40 02.68 +17 24 07.8 |
|
| Date first |
1904 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
110 |
|
Pa last |
109.5 |
|
P.A. Now (θ) |
109.5° |
|
| Sep first |
17.9 |
|
Sep last |
17.755 |
|
Sep. Now (ρ) |
17.755" |
|
| Mag pri |
12.30 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
|
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
|
|
rPM=0.555
Nature of this double is uncertain.
18400+1724 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 40 03 +17 24 08 |
SLE 231 AB |
2015 |
13 |
110 |
17.8 |
12.30 |
12.80 |
0.50 |
|
<=== |
| Show |
|
|
18 40 04 +17 24 02 |
TOB 294 BC |
2015 |
8 |
149 |
20.0 |
12.80 |
14.90 |
2.10 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1587-01731-1 |
|
Gaia DR2 |
4511920662650925056 |
|
