18020-2731 STN 40 AB (HD 164404)
18h 02m 02.85s -27° 30' 53.4" P.A. 161.00 sep 2.4 mag 8.49,9.31 Sp B2V
| Coord 2000 |
18020-2731 |
|
Discov num |
STN 40 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 02 02.85 -27 30 53.4 |
|
| Date first |
1876 |
|
Date last |
1999 |
|
Obs |
19 |
|
| Pa first |
163 |
|
Pa last |
160.8 |
|
P.A. Now (θ) |
160.8° |
|
| Sep first |
3.0 |
|
Sep last |
2.41 |
|
Sep. Now (ρ) |
2.41" |
|
| Mag pri |
8.49 |
|
Mag sec |
9.31 |
|
delta mag (ΔM) |
0.82 |
|
Spectral class |
B2V (blue-white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
+026 |
|
Sec motion dec |
+000 |
|
| Notes |
|
|
rPM=1
This double is not physical.
18020-2731 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 164404 |
|
18 02 03 -27 30 53 |
STN 40 AB |
1999 |
19 |
161 |
2.4 |
8.49 |
9.31 |
0.82 |
|
<=== |
| Show |
|
|
18 02 03 -27 30 53 |
B 2850 AC |
1999 |
3 |
50 |
5.8 |
8.49 |
14.10 |
5.61 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 164404 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6850-02107-1 |
|
Gaia DR2 |
4063117200416630272 |
|
| HD |
164404 |
|
ADS |
10984 |
|
