18103+0235 BU 638 BC
18h 10m 21.33s +02° 34' 49.7" P.A. 4.00 sep 1.8 mag 10.78,13.60
| Coord 2000 |
18103+0235 |
|
Discov num |
BU 638 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 10 21.33 +02 34 49.7 |
|
| Date first |
1878 |
|
Date last |
2014 |
|
Obs |
12 |
|
| Pa first |
12 |
|
Pa last |
4 |
|
P.A. Now (θ) |
4° |
|
| Sep first |
1.7 |
|
Sep last |
1.76 |
|
Sep. Now (ρ) |
1.76" |
|
| Mag pri |
10.78 |
|
Mag sec |
13.60 |
|
delta mag (ΔM) |
2.82 |
|
Spectral class |
|
|
| Pri motion ra |
-007 |
|
Sec motion ra |
|
|
| Pri motion dec |
-016 |
|
Sec motion dec |
|
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18103+0235 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 10 21 +02 35 10 |
STF 2287 AB |
2014 |
19 |
153 |
22.9 |
10.51 |
10.78 |
0.27 |
|
|
| Show |
|
|
18 10 21 +02 35 10 |
BU 638 AD |
2015 |
13 |
222 |
59.7 |
10.51 |
12.07 |
1.56 |
|
|
| Show |
|
|
18 10 21 +02 35 10 |
BU 638 AE |
2015 |
5 |
344 |
13.7 |
10.51 |
15.50 |
4.99 |
|
|
| Show |
|
|
18 10 21 +02 34 50 |
BU 638 BC |
2014 |
12 |
4 |
1.8 |
10.78 |
13.60 |
2.82 |
|
<=== |
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Ophiuchus |
|
Tycho2 |
0435-02555-1 |
|
Gaia DR2 |
4469841326157874816 |
|
