00493-2124 BU 301 AB (HD 4731)
00h 49m 18.31s -21° 23' 50.6" P.A. 331.00 sep 0.8 mag 8.89,12.53 Sp F3IV/V dist. 125 pc (407.75 l.y.)
| Coord 2000 |
00493-2124 |
|
Discov num |
BU 301 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 49 18.31 -21 23 50.6 |
|
| Date first |
1891 |
|
Date last |
2001 |
|
Obs |
7 |
|
| Pa first |
319 |
|
Pa last |
330.5 |
|
P.A. Now (θ) |
330.5° |
|
| Sep first |
0.9 |
|
Sep last |
0.81 |
|
Sep. Now (ρ) |
0.81" |
|
| Mag pri |
8.89 |
|
Mag sec |
12.53 |
|
delta mag (ΔM) |
3.64 |
|
Spectral class |
F3IV/V (yellow-white) |
|
| Pri motion ra |
+038 |
|
Sec motion ra |
+027 |
|
| Pri motion dec |
+009 |
|
Sec motion dec |
+006 |
|
| Notes |
|
|
rPM=0.292 (< 0.3, Physical double)
This double is physical.
00493-2124 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 4731 |
166603 |
00 49 18 -21 23 51 |
BU 301 AB |
2001 |
7 |
331 |
0.8 |
8.89 |
12.53 |
3.64 |
|
<=== |
| Show |
|
166603 |
00 49 18 -21 23 51 |
BU 301 AC |
2016 |
20 |
299 |
11.0 |
8.89 |
9.98 |
1.09 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 4731 |
|
Constellation |
Cetus |
|
SAO |
166603 |
|
HIP |
3845 |
|
| Tycho2 |
5850-02582-1 |
|
Gaia DR2 |
2349697309661130624 |
|
HD |
4731 |
|
ADS |
681 |
|
| BD |
BD-22 138 |
|
Distance |
125 |
|
Distance ly |
407.75 |
|
