17134+1249 DAM 990 AB (HD 155818)
17h 13m 21.67s +12° 49' 27.6" P.A. 136.00 sep 25.6 mag 10.00,12.00 Sp F5
| Coord 2000 |
17134+1249 |
|
Discov num |
DAM 990 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 13 21.67 +12 49 27.6 |
|
| Date first |
1904 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
137 |
|
Pa last |
135.8 |
|
P.A. Now (θ) |
135.8° |
|
| Sep first |
25.0 |
|
Sep last |
25.648 |
|
Sep. Now (ρ) |
25.648" |
|
| Mag pri |
10.00 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
2 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
+005 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=1.316
This double is not physical.
17134+1249 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 155818 |
|
17 13 22 +12 49 28 |
DAM 990 AB |
2015 |
8 |
136 |
25.6 |
10.00 |
12.00 |
2.00 |
|
<=== |
| Show |
|
|
17 13 23 +12 49 09 |
DAM 990 BC |
2004 |
1 |
32 |
1.7 |
12.00 |
15.50 |
3.50 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 155818 |
|
Constellation |
Hercules |
|
Tycho2 |
0985-00231-1 |
|
Gaia DR2 |
4541420254684026496 |
|
| HD |
155818 |
|