06504-1602 BU 898 AB (HD 49978)
06h 50m 23.93s -16° 01' 49.4" P.A. 356.00 sep 3.3 mag 8.24,11.19 Sp B7III/IV dist. 262.47 pc (856.18 l.y.)
| Coord 2000 |
06504-1602 |
|
Discov num |
BU 898 |
|
Comp |
AB |
|
Coord arcsec 2000 |
06 50 23.93 -16 01 49.4 |
|
| Date first |
1879 |
|
Date last |
2016 |
|
Obs |
14 |
|
| Pa first |
356 |
|
Pa last |
355.5 |
|
P.A. Now (θ) |
355.5° |
|
| Sep first |
3.0 |
|
Sep last |
3.253 |
|
Sep. Now (ρ) |
3.253" |
|
| Mag pri |
8.24 |
|
Mag sec |
11.19 |
|
delta mag (ΔM) |
2.95 |
|
Spectral class |
B7III/IV (blue-white) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-014 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
rPM=1.018
This double is not physical.
06504-1602 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 49978 |
151994 |
06 50 24 -16 01 49 |
BU 898 AB |
2016 |
14 |
356 |
3.3 |
8.24 |
11.19 |
2.95 |
|
<=== |
| Show |
|
151994 |
06 50 24 -16 01 49 |
BU 898 AC |
2015 |
14 |
282 |
97.7 |
8.24 |
10.61 |
2.37 |
|
|
| Show |
|
|
06 50 17 -16 01 29 |
BU 898 CD |
2016 |
11 |
269 |
2.0 |
10.61 |
10.93 |
0.32 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 49978 |
|
Constellation |
Canis Major |
|
SAO |
151994 |
|
HIP |
32811 |
|
| Tycho2 |
5950-00840-1 |
|
Gaia DR2 |
2946465526337277056 |
|
HD |
49978 |
|
BD |
BD-15 1533 |
|
| Distance |
262.47 |
|
Distance ly |
856.18 |
|
