18186-1346 DCH 25 EF
18h 18m 37.88s -13° 46' 35.0" P.A. 295.00 sep 1.1 mag 9.49,13.90 Sp B1V
| Coord 2000 |
18186-1346 |
|
Discov num |
DCH 25 |
|
Comp |
EF |
|
Coord arcsec 2000 |
18 18 37.88 -13 46 35.0 |
|
| Date first |
1998 |
|
Date last |
1998 |
|
Obs |
1 |
|
| Pa first |
295 |
|
Pa last |
295 |
|
P.A. Now (θ) |
295° |
|
| Sep first |
1.1 |
|
Sep last |
1.081 |
|
Sep. Now (ρ) |
1.081" |
|
| Mag pri |
9.49 |
|
Mag sec |
13.90 |
|
delta mag (ΔM) |
4.41 |
|
Spectral class |
B1V (blue-white) |
|
| Pri motion ra |
+001 |
|
Sec motion ra |
|
|
| Pri motion dec |
+002 |
|
Sec motion dec |
|
|
| Notes |
K
(K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
18186-1346 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 18 38 -13 45 35 |
DCH 22 AB |
1998 |
1 |
346 |
0.6 |
13.46 |
14.99 |
1.53 |
|
|
| Show |
|
|
18 18 38 -13 46 29 |
DCH 23 CD |
1998 |
1 |
322 |
0.8 |
10.99 |
15.45 |
4.46 |
|
|
| Show |
|
|
18 18 38 -13 46 35 |
DCH 25 EF |
1998 |
1 |
295 |
1.1 |
9.49 |
13.90 |
4.41 |
|
<=== |
Sextuple system
6 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Serpens |
|
Gaia DR2 |
4146612395388089344 |
|