18418-1909 J 2221 AB
18h 41m 44.78s -19° 09' 14.4" P.A. 254.00 sep 7.5 mag 10.03,11.70
| Coord 2000 |
18418-1909 |
|
Discov num |
J 2221 |
|
Comp |
AB |
|
Coord arcsec 2000 |
18 41 44.78 -19 09 14.4 |
|
| Date first |
1942 |
|
Date last |
2016 |
|
Obs |
8 |
|
| Pa first |
265 |
|
Pa last |
253.7 |
|
P.A. Now (θ) |
253.7° |
|
| Sep first |
5.0 |
|
Sep last |
7.488 |
|
Sep. Now (ρ) |
7.488" |
|
| Mag pri |
10.03 |
|
Mag sec |
11.70 |
|
delta mag (ΔM) |
1.67 |
|
Spectral class |
|
|
| Pri motion ra |
+021 |
|
Sec motion ra |
-028 |
|
| Pri motion dec |
+009 |
|
Sec motion dec |
-012 |
|
| Notes |
|
|
rPM=1.75
This double is not physical.
18418-1909 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
18 41 45 -19 09 14 |
J 2221 AB |
2016 |
8 |
254 |
7.5 |
10.03 |
11.70 |
1.67 |
|
<=== |
| Show |
|
|
18 41 45 -19 09 14 |
J 2221 AC |
2016 |
8 |
346 |
17.9 |
10.03 |
12.50 |
2.47 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
Gaia DR2 |
4092350637622230656 |
|
