18039-1913 B 2431 (HD 312561)
18h 03m 51.54s -19° 13' 07.1" P.A. 285.00 sep 9.7 mag 9.71,11.50 Sp M1
Coord 2000 |
18039-1913 |
|
Discov num |
B 2431 |
|
Comp |
|
|
Coord arcsec 2000 |
18 03 51.54 -19 13 07.1 |
|
Date first |
1919 |
|
Date last |
2015 |
|
Obs |
9 |
|
Pa first |
288 |
|
Pa last |
284.9 |
|
P.A. Now (θ) |
284.9° |
|
Sep first |
9.7 |
|
Sep last |
9.711 |
|
Sep. Now (ρ) |
9.711" |
|
Mag pri |
9.71 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
1.79 |
|
Spectral class |
M1 (red) |
|
Pri motion ra |
+002 |
|
Sec motion ra |
-010 |
|
Pri motion dec |
-004 |
|
Sec motion dec |
-007 |
|
Notes |
|
|
rPM=1.013
This double is not physical.
18039-1913 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
161033 |
18 03 52 -19 13 07 |
OCC 537 Aa,Ab |
1998 |
1 |
104 |
0.9 |
9.80 |
9.80 |
0.00 |
|
|
Show |
HD 312561 |
161033 |
18 03 52 -19 13 07 |
B 2431 |
2015 |
9 |
285 |
9.7 |
9.71 |
11.50 |
1.79 |
|
<=== |
Quadruple system
0 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 312561 |
|
Constellation |
Sagittarius |
|
SAO |
161033 |
|
Tycho2 |
6259-01445-1 |
|
Gaia DR2 |
4095295988730354176 |
|
HD |
312561 |
|