18034-2237 ARA 1839 (HD 164717)
18h 03m 24.89s -22° 37' 01.3" P.A. 42.00 sep 12.4 mag 8.18,12.00 Sp B3nn
Coord 2000 |
18034-2237 |
|
Discov num |
ARA1839 |
|
Comp |
|
|
Coord arcsec 2000 |
18 03 24.89 -22 37 01.3 |
|
Date first |
1921 |
|
Date last |
2020 |
|
Obs |
7 |
|
Pa first |
42 |
|
Pa last |
42.4 |
|
P.A. Now (θ) |
42.4° |
|
Sep first |
11.7 |
|
Sep last |
12.4 |
|
Sep. Now (ρ) |
12.4" |
|
Mag pri |
8.18 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
3.82 |
|
Spectral class |
B3nn (blue-white) |
|
Pri motion ra |
+003 |
|
Sec motion ra |
+010 |
|
Pri motion dec |
-002 |
|
Sec motion dec |
+008 |
|
Notes |
|
|
rPM=0.953
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 164717 |
|
Constellation |
Sagittarius |
|
SAO |
186185 |
|
Tycho2 |
6842-00181-1 |
|
Gaia DR2 |
4069660149242458752 |
|
HD |
164717 |
|
DM |
CD-2212481 |
|