18437-2240 DON 919 AC
18h 43m 42.74s -22° 40' 13.0" P.A. 306.00 sep 14.9 mag 8.10,12.60 Sp F7V dist. 74.85 pc (244.16 l.y.)
| Coord 2000 |
18437-2240 |
|
Discov num |
DON 919 |
|
Comp |
AC |
|
Coord arcsec 2000 |
18 43 42.74 -22 40 13.0 |
|
| Date first |
1920 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
282 |
|
Pa last |
306.3 |
|
P.A. Now (θ) |
306.3° |
|
| Sep first |
14.9 |
|
Sep last |
14.949 |
|
Sep. Now (ρ) |
14.949" |
|
| Mag pri |
8.10 |
|
Mag sec |
12.60 |
|
delta mag (ΔM) |
4.5 |
|
Spectral class |
F7V (yellow-white) |
|
| Pri motion ra |
-033 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
-070 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.95
This double is not physical.
18437-2240 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
187196 |
18 43 43 -22 40 13 |
DON 919 AB |
2016 |
5 |
80 |
3.4 |
8.10 |
12.70 |
4.60 |
|
|
| Show |
|
187196 |
18 43 43 -22 40 13 |
DON 919 AC |
2015 |
8 |
306 |
14.9 |
8.10 |
12.60 |
4.50 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagittarius |
|
SAO |
187196 |
|
HIP |
91864 |
|
Tycho2 |
6859-00235-1 |
|
| Gaia DR2 |
4078516651023103360 |
|
HD |
172934 |
|
BD |
BD-22 4837 |
|
CD |
CD-2213240 |
|
| Distance |
74.85 |
|
Distance ly |
244.16 |
|
