06499-2228 DON 146 AB (HD 49939)
06h 49m 53.88s -22° 28' 22.3" P.A. 275.00 sep 0.9 mag 9.54,9.63 Sp A9V
| Coord 2000 |
06499-2228 |
|
Discov num |
DON 146 |
|
Comp |
AB |
|
Coord arcsec 2000 |
06 49 53.88 -22 28 22.3 |
|
| Date first |
1931 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
287 |
|
Pa last |
274.9 |
|
P.A. Now (θ) |
274.9° |
|
| Sep first |
0.7 |
|
Sep last |
0.893 |
|
Sep. Now (ρ) |
0.893" |
|
| Mag pri |
9.54 |
|
Mag sec |
9.63 |
|
delta mag (ΔM) |
0.09 |
|
Spectral class |
A9V (white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
+007 |
|
Sec motion dec |
+007 |
|
| Notes |
|
|
Nature of this double is uncertain.
06499-2228 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 49939 |
172394 |
06 49 54 -22 28 22 |
DON 146 AB |
2015 |
8 |
275 |
0.9 |
9.54 |
9.63 |
0.09 |
|
<=== |
| Show |
|
172394 |
06 49 54 -22 28 22 |
ARA 1666 AC |
1999 |
4 |
105 |
14.8 |
9.54 |
11.00 |
1.46 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 49939 |
|
Constellation |
Canis Major |
|
SAO |
172394 |
|
Tycho2 |
5962-00239-1 |
|
| Gaia DR2 |
2925774366775238912 |
|
HD |
49939 |
|
DM |
CD-22 3561 |
|
