03174+0739 BU 1039 AC (HD 20439)
03h 17m 26.29s +07° 39' 21.0" P.A. 38.00 sep 156.0 mag 7.44,7.82 Sp F9IV-V dist. 41.75 pc (136.19 l.y.)
Coord 2000 |
03174+0739 |
|
Discov num |
BU 1039 |
|
Comp |
AC |
|
Coord arcsec 2000 |
03 17 26.29 +07 39 21.0 |
|
Date first |
1897 |
|
Date last |
2015 |
|
Obs |
19 |
|
Pa first |
37 |
|
Pa last |
37.5 |
|
P.A. Now (θ) |
37.5° |
|
Sep first |
156.0 |
|
Sep last |
155.972 |
|
Sep. Now (ρ) |
155.972" |
|
Mag pri |
7.44 |
|
Mag sec |
7.82 |
|
delta mag (ΔM) |
0.38 |
|
Spectral class |
F9IV-V (yellow-white) |
|
Pri motion ra |
+170 |
|
Sec motion ra |
+167 |
|
Pri motion dec |
-006 |
|
Sec motion dec |
-008 |
|
Notes |
N
T
(See Notes, Parallax indicates physical) |
|
rPM=0.021 (< 0.3, Physical double)
This double is physical.
03174+0739 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
111104 |
03 17 26 +07 39 21 |
BU 1039 AB |
2002 |
3 |
201 |
2.5 |
7.39 |
13.40 |
6.01 |
|
|
Show |
HD 20439 |
111104 |
03 17 26 +07 39 21 |
BU 1039 AC |
2015 |
19 |
38 |
156.0 |
7.44 |
7.82 |
0.38 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 20439 |
|
Constellation |
Cetus |
|
SAO |
111104 |
|
HIP |
15310 |
|
Tycho2 |
0649-00766-1 |
|
Gaia DR2 |
10584899657116672 |
|
HD |
20439 |
|
BD |
BD+07 494 |
|
Distance |
41.75 |
|
Distance ly |
136.19 |
|