07187-2457 HJ 3948 AD
07h 18m 42.49s -24° 57' 15.8" P.A. 78.00 sep 83.5 mag 4.42,8.22 Sp O9II dist. 917.43 pc (2992.66 l.y.)
| Coord 2000 |
07187-2457 |
|
Discov num |
HJ 3948 |
|
Comp |
AD |
|
Coord arcsec 2000 |
07 18 42.49 -24 57 15.8 |
|
| Date first |
1834 |
|
Date last |
2020 |
|
Obs |
13 |
|
| Pa first |
73 |
|
Pa last |
78 |
|
P.A. Now (θ) |
78° |
|
| Sep first |
85.0 |
|
Sep last |
83.45 |
|
Sep. Now (ρ) |
83.45" |
|
| Mag pri |
4.42 |
|
Mag sec |
8.22 |
|
delta mag (ΔM) |
3.8 |
|
Spectral class |
O9II (blue) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
+014 |
|
| Pri motion dec |
+004 |
|
Sec motion dec |
+010 |
|
| Notes |
N
(See Notes) |
|
rPM=0.993
This double is not physical.
07187-2457 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
173446 |
07 18 42 -24 57 16 |
FIN 313 Aa,Ab |
2018 |
48 |
131 |
0.1 |
4.89 |
5.33 |
0.44 |
|
|
| Show |
Tau CMa |
173446 |
07 18 42 -24 57 16 |
HJ 3948 AB |
2015 |
14 |
90 |
8.3 |
4.42 |
10.20 |
5.78 |
|
|
| Show |
|
173446 |
07 18 42 -24 57 16 |
HJ 3948 AC |
2002 |
9 |
87 |
14.2 |
4.42 |
11.20 |
6.78 |
|
|
| Show |
|
173446 |
07 18 42 -24 57 16 |
HJ 3948 AD |
2020 |
13 |
78 |
83.5 |
4.42 |
8.22 |
3.80 |
|
<=== |
| Show |
|
173446 |
07 18 42 -24 57 16 |
TOK 42 AE |
2018 |
12 |
87 |
0.9 |
5.33 |
9.70 |
4.37 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV3528 CMa |
|
Constellation |
Canis Major |
|
SAO |
173446 |
|
HIP |
35415 |
|
| Tycho2 |
6541-04204-1 |
|
Gaia DR2 |
5616537013676667392 |
|
HD |
57061 |
|
HR |
2782 |
|
| GC |
9736 |
|
ADS |
5977 |
|
CD |
CD-24 5176 |
|
CP |
CP-24 2216 |
|
| Bayer |
Tau Canis Majoris |
|
Bayer name |
Tau CMa |
|
Flamsteed |
30 Canis Majoris |
|
Flamsteed name |
30 CMa |
|
| Distance |
917.43 |
|
Distance ly |
2992.66 |
|
Bayer greek |
τ CMa |
|
