18028+0137 BU 635 BC
18h 02m 45.80s +01° 36' 43.8" P.A. 122.00 sep 1.5 mag 9.93,10.90 Sp A5
Coord 2000 |
18028+0137 |
|
Discov num |
BU 635 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 02 45.80 +01 36 43.8 |
|
Date first |
1878 |
|
Date last |
2013 |
|
Obs |
21 |
|
Pa first |
115 |
|
Pa last |
122.1 |
|
P.A. Now (θ) |
122.1° |
|
Sep first |
1.6 |
|
Sep last |
1.463 |
|
Sep. Now (ρ) |
1.463" |
|
Mag pri |
9.93 |
|
Mag sec |
10.90 |
|
delta mag (ΔM) |
0.97 |
|
Spectral class |
A5 (white) |
|
Pri motion ra |
+001 |
|
Sec motion ra |
|
|
Pri motion dec |
-005 |
|
Sec motion dec |
|
|
Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
18028+0137 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 164812 |
123058 |
18 02 50 +01 36 08 |
BU 635 AB |
2017 |
21 |
302 |
68.8 |
8.63 |
9.93 |
1.30 |
|
|
Show |
|
|
18 02 46 +01 36 44 |
BU 635 BC |
2013 |
21 |
122 |
1.5 |
9.93 |
10.90 |
0.97 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Ophiuchus |
|
Tycho2 |
0430-03398-1 |
|
Gaia DR2 |
4467845472045257344 |
|