18028+0137 BU 635 AB (HD 164812)
18h 02m 49.73s +01° 36' 07.6" P.A. 302.00 sep 68.8 mag 8.63,9.93 Sp A5
Coord 2000 |
18028+0137 |
|
Discov num |
BU 635 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 02 49.73 +01 36 07.6 |
|
Date first |
1877 |
|
Date last |
2017 |
|
Obs |
21 |
|
Pa first |
303 |
|
Pa last |
302.3 |
|
P.A. Now (θ) |
302.3° |
|
Sep first |
68.0 |
|
Sep last |
68.77 |
|
Sep. Now (ρ) |
68.77" |
|
Mag pri |
8.63 |
|
Mag sec |
9.93 |
|
delta mag (ΔM) |
1.3 |
|
Spectral class |
A5 (white) |
|
Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
Pri motion dec |
-007 |
|
Sec motion dec |
-005 |
|
Notes |
N
(See Notes) |
|
rPM=0.275 (< 0.3, Physical double)
This double is physical.
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
Name |
HD 164812 |
|
Constellation |
Ophiuchus |
|
SAO |
123058 |
|
Tycho2 |
0430-02917-1 |
|
Gaia DR2 |
4467845368966034304 |
|
HD |
164812 |
|
DM |
BD+01 3566 |
|