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 |
|
WDS 03174+0739 BU 1039 AC (HD 20439) : NOTES
| discov_num |
notes |
refcode |
| BU 1039 |
Hyades vB 1. BU 1039AB, with rho = 2".2 and Delta m = 6.0 is outside |
|
|
the detection window. |
Msn1993a |
|
AC: HJL 47. |
HJL1986 |
|
AC: SHY 155. Bayesian analysis by Shaya & Olling (2011) indicates very |
Shy2011 |
|
high (near 100%) probability pair is physical. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| HJL1986 |
Pa - |
Halbwachs, J.L. |
1986A&AS...66..131H |
| HJL1986 |
|
A&AS 66, 131, 1986 |
|
| HJL1986 |
|
(Possible CPM pairs from AGK2/3. Coarse astrometry, incl. mean 1950 dates, added |
|
| HJL1986 |
|
only for previously unknown pairs. Table 1: HJL 1 - 326, Table 2: HJL1001 - 1113) |
|
| Msn1993a |
Sc j |
Mason, B.D., McAlister, H.A., Hartkopf, W.I., & Bagnuolo, W.G. |
1993AJ....105..220M |
| Msn1993a |
|
AJ 105, 220, 1993 |
|
| Shy2011 |
- |
Shaya, E.J. & Olling, R. |
2011ApJS..192....2S |
| Shy2011 |
|
ApJS 192, 2, 2011 |
|
| Shy2011 |
|
(Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs |
|
| Shy2011 |
|
added to WDS only if probability 90% or greater.) |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
BU |
Burnham, S.W. (BU 1 - 81) |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 03174+0739 |
BU 1039 |
AC |
2005 |
16 |
38 |
155.7 |
7.44 |
7.82 |
|
NZDV |
031726.29+073921.0 |
| 03174+0739 |
BU 1039 |
AC |
2015 |
18 |
38 |
156.0 |
7.44 |
7.82 |
F9IV-V |
NZWV |
031726.29+073921.0 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 03174+0739 BU 1039 AC (HD 20439) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 03174+0739 BU 1039 AC (HD 20439) : MEASURES
No records found.
WDS 03174+0739 (HD 20439) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 03174+0739 (HD 20439) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
