03178-1407 HU 432 (HD 20530)
03h 17m 45.24s -14° 06' 46.6" P.A. 101.00 sep 0.2 mag 10.40,10.40 Sp K0V
Coord 2000 |
03178-1407 |
|
Discov num |
HU 432 |
|
Comp |
|
|
Coord arcsec 2000 |
03 17 45.24 -14 06 46.6 |
|
Date first |
1901 |
|
Date last |
2020 |
|
Obs |
8 |
|
Pa first |
46 |
|
Pa last |
100.9 |
|
P.A. Now (θ) |
100.9° |
|
Sep first |
0.2 |
|
Sep last |
0.184 |
|
Sep. Now (ρ) |
0.184" |
|
Mag pri |
10.40 |
|
Mag sec |
10.40 |
|
delta mag (ΔM) |
0 |
|
Spectral class |
K0V (yellow-orange) |
|
Pri motion ra |
+064 |
|
Sec motion ra |
|
|
Pri motion dec |
+027 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 20530 |
|
Constellation |
Eridanus |
|
SAO |
148887 |
|
Tycho2 |
5301-01012-1 |
|
Gaia DR2 |
5155370883158999808 |
|
HD |
20530 |
|
ADS |
2456 |
|
ORBITAL ELEMENTS
Period (P) | 73.67y | |
Periastron (T) | 1979.23y | |
Semi-major axis (a) | 0.2017a | |
Eccentricity (e) | 0.152 | |
Inclination (i) | 40.4° | |
Longitude of periastron (ω) | 223.2° | |
Node (Ω) | 45.4° | |
Notes | | |
Reference | Tok2020e | |
Equinox | | |
Last observation | 2019 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
30.6 |
0.207 |
2001 |
34.1 |
0.211 |
2002 |
37.4 |
0.215 |
2003 |
40.5 |
0.218 |
2004 |
43.7 |
0.220 |
2005 |
46.7 |
0.222 |
2006 |
49.7 |
0.224 |
2007 |
52.7 |
0.224 |
2008 |
55.7 |
0.224 |
2009 |
58.6 |
0.224 |
2010 |
61.6 |
0.223 |
2011 |
64.7 |
0.222 |
2012 |
67.7 |
0.220 |
2013 |
70.9 |
0.217 |
2014 |
74.1 |
0.215 |
2015 |
77.4 |
0.212 |
2016 |
80.7 |
0.208 |
2017 |
84.2 |
0.205 |
2018 |
87.9 |
0.201 |
2019 |
91.6 |
0.197 |
2020 |
95.6 |
0.193 |
2021 |
99.6 |
0.190 |
2022 |
103.9 |
0.186 |
2023 |
108.3 |
0.182 |
2024 |
112.9 |
0.179 |
2025 |
117.7 |
0.175 |
2026 |
122.7 |
0.173 |
2027 |
127.8 |
0.170 |
2028 |
133.0 |
0.168 |
2029 |
138.3 |
0.167 |
2030 |
143.7 |
0.166 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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WDS 03178-1407 HU 432 (HD 20530) : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Tok2020e |
St j |
Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. |
2020AJ....160....7T |
Tok2020e |
+orb |
AJ 160, 7, 2020 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
HU |
Hussey, W.F. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
03178-1407 |
HU 432 |
|
1977 |
6 |
70 |
0.2 |
10.40 |
10.40 |
K0V |
|
031745.24-140646.6 |
03178-1407 |
HU 432 |
|
2017 |
7 |
86 |
0.2 |
10.40 |
10.40 |
K0V |
|
031745.24-140646.6 |
03178-1407 |
HU 432 |
|
2019 |
7 |
96 |
0.2 |
10.40 |
10.40 |
K0V |
|
031745.24-140646.6 |
03178-1407 |
HU 432 |
|
2020 |
8 |
101 |
0.2 |
10.40 |
10.40 |
K0V |
O |
031745.24-140646.6 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 03178-1407 HU 432 (HD 20530) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 03178-1407 HU 432 (HD 20530) : MEASURES
No records found.
WDS 03178-1407 (HD 20530) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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|
WDS 03178-1407 (HD 20530) : ALADIN DSS IMAGE @ 03h 17m 45.24s -14° 06' 46.6"
WDS 03178-1407 HU 432 (HD 20530) : NEIGHBORHOODS
|
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
Show |
name |
coord_2000 |
discov# |
comp |
pa |
sep |
dist(') |
Show |
|
03178-1407 |
HU 432 |
|
101 |
0.2 |
1 |
Show |
|
03176-1412 |
GWP 446 |
|
344 |
77.5 |
6 |
Show |
|
03149-1400 |
HJ 3558 |
|
139 |
15.6 |
43 |
Show |
|
03148-1427 |
HJ 3557 |
|
347 |
26.3 |
47 |
Show |
|
03212-1359 |
HJ 3567 |
|
110 |
5.3 |
52 |
Show |
|
03203-1322 |
RST3378 |
|
344 |
2.6 |
59 |
Show |
|
03139-1429 |
GAL 86 |
|
307 |
4.3 |
61 |
Show |
|
03202-1457 |
LDS3479 |
|
296 |
204.2 |
62 |
Show |
|
03133-1410 |
TDS2485 |
|
242 |
0.4 |
65 |
Show |
|
03232-1404 |
GWP 459 |
AB |
65 |
147.8 |
79 |
Show |
|
03232-1404 |
DAM1303 |
Aa,Ab |
314 |
2.4 |
79 |
Show |
|
03221-1316 |
HJ 3569 |
|
212 |
19.5 |
81 |
Show |
|
03235-1413 |
RST3381 |
|
96 |
0.6 |
84 |
Show |
|
03136-1504 |
TDS2487 |
Aa,Ab |
324 |
0.6 |
84 |
Show |
|
03136-1504 |
LDS3466 |
AB |
274 |
25.6 |
84 |
Show |
|
03244-1400 |
BU 12 |
|
281 |
2.4 |
98 |
Show |
|
03237-1321 |
KPP1854 |
|
117 |
14.4 |
99 |
Show |
|
03112-1338 |
TDS2469 |
|
311 |
0.5 |
100 |
Show |
|
03190-1549 |
GWP 448 |
|
126 |
8.9 |
104 |
Show |
|
03175-1222 |
J 1456 |
|
320 |
3.7 |
104 |
Show |
|
03174-1223 |
UC 975 |
|
325 |
40.9 |
104 |
Show |
|
03137-1241 |
KPP2022 |
|
328 |
16.1 |
105 |
Show |
|
03102-1352 |
HU 605 |
|
62 |
2.5 |
112 |
Show |
|
03153-1209 |
TDS2503 |
|
79 |
0.6 |
123 |
Show |
|
03118-1537 |
LDS3464 |
|
344 |
15.0 |
127 |
Show |
|
03258-1304 |
HU 21 |
|
39 |
1.4 |
134 |
Show |
|
03244-1539 |
A 2909 |
AB |
140 |
0.0 |
134 |
Show |
|
03244-1539 |
A 2909 |
AB,C |
254 |
17.0 |
134 |
Show |
|
03248-1533 |
GWP 466 |
|
348 |
5.3 |
135 |
Show |
|
03087-1432 |
GWP 426 |
|
65 |
3.1 |
135 |
Show |
|
03240-1220 |
BRT2629 |
|
19 |
7.0 |
141 |
Show |
|
03214-1156 |
RST3379 |
|
236 |
0.9 |
141 |
Show |
|
03108-1550 |
LDT 2 |
|
281 |
0.4 |
144 |
Show |
|
03277-1422 |
A 2911 |
|
108 |
2.3 |
146 |
Show |
|
03098-1238 |
GWP 428 |
|
331 |
11.1 |
146 |
Show |
|
03202-1632 |
GWP 452 |
|
346 |
20.8 |
150 |
Show |
|
03155-1633 |
YSC 176 |
|
274 |
0.8 |
151 |
Show |
|
03124-1157 |
GWP 432 |
AB |
279 |
222.5 |
152 |
Show |
|
03124-1157 |
GWP 433 |
AC |
121 |
40.3 |
152 |
Show |
|
03073-1346 |
CRJ 7 |
|
239 |
1.6 |
154 |
Show |
|
03284-1425 |
GWP 470 |
|
147 |
45.0 |
156 |
Show |
|
03282-1335 |
GAL 330 |
|
82 |
9.5 |
157 |
Show |
|
03226-1142 |
RST3380 |
|
138 |
2.0 |
162 |
Show |
|
03220-1636 |
LDS3485 |
|
231 |
10.5 |
162 |
Show |
|
03083-1236 |
STF 357 |
|
295 |
8.6 |
166 |
Show |
|
03067-1319 |
STF 356 |
|
13 |
15.5 |
169 |
Show |
|
03061-1326 |
BU 527 |
AB |
99 |
1.4 |
176 |
Show |
|
03061-1326 |
FOX9022 |
AC |
322 |
59.2 |
176 |
Show |
|
03054-1432 |
GWP 418 |
|
248 |
21.4 |
182 |
Show |
|
03213-1112 |
DAM1302 |
|
328 |
5.4 |
183 |
Show |
|
03286-1537 |
LDS3498 |
|
171 |
16.4 |
183 |
|
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WDS 03178-1407 : COMPONENTS
03178-1407 A
Componente originario normalizzato |
AB |
|
Name |
HD 20530 |
|
Coord arcsec 2000 |
031745.24-140646.6 |
|
Mag |
10.4 |
|
Spectral class |
K0V (yellow-orange) |
|
PmRA |
64.00 |
|
PmDE |
27.0 |
|
SAO |
148887 |
|
Tycho2 |
5301-01012-1 |
|
HD |
20530 |
|
DM |
BD-14 639 |
|
Tycho2 |
5301-01012-1 |
|
Pflag |
|
|
RAmdeg |
49.43850999 |
|
DEmdeg |
-14.11295953 |
|
PmRA |
64.3 |
|
PmDE |
23.9 |
|
E RAmdeg |
12 |
|
E DEmdeg |
16 |
|
E pmRA |
1.3 |
|
E pmDE |
1.3 |
|
EpRAm |
1989.44 |
|
EpDEm |
1987.30 |
|
Num |
7 |
|
Q RAmdeg |
0.4 |
|
Q DEmdeg |
0.8 |
|
Q pmRA |
0.4 |
|
Q pmDE |
0.7 |
|
BTmag |
10.621 |
|
E BTmag |
0.035 |
|
VTmag |
9.657 |
|
E VTmag |
0.023 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
|
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CCDM |
|
|
RAdeg |
49.43835944 |
|
DEdeg |
-14.11301556 |
|
EpRA 1990 |
1.83 |
|
EpDE 1990 |
1.61 |
|
E RAdeg |
13.3 |
|
E DEdeg |
18.2 |
|
Posflg |
|
|
Corr |
0.0 |
|
SAO |
148887 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0045 |
|
DE1950 |
|
|
PmDE1950 |
0.028 |
|
Vmag |
9 |
|
SpType |
G5 |
|
Double code |
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Source |
21 |
|
CatNum |
870 |
|
DM |
BD-14 639 |
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DMcomp |
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BDsup |
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HD |
20530 |
|
M HD |
0 |
|
GC |
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|
RA1950rad |
0.85259963 |
|
DE1950rad |
-0.24950241 |
|
PmRA2000 |
0.0049 |
|
PmDE2000 |
0.026 |
|
Ccdm |
03178-1407 |
|
RComp |
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Comp |
A |
|
Note1 |
|
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Note2 |
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Discov num |
|
|
DRAs |
-2.76 |
|
DDEs |
13.5 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
10.3 |
|
Sp |
G5 |
|
PmNote |
* |
|
PmRA |
65 |
|
PmDE |
28 |
|
Dm number |
-14 639 |
|
Cat1 |
BD |
|
Name2 |
148887 |
|
Cat2 |
SAO |
|
HD |
20530 |
|
M HD |
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|
ADS BDS |
A 2456 |
|
M ADS BDS |
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N IDS |
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IDS |
03130S1429A |
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HIC |
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03178-1407 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
031745.25-140646.6 |
|
Mag |
10.4 |
|
Calc coord |
yes |
|
Ccdm |
03178-1407 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
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|
Discov num |
HU 432 |
|
DRAs |
|
|
DDEs |
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R dRAs |
|
|
Year |
1925 |
|
Theta |
032 |
|
Rho |
0.2 |
|
Obs |
4 |
|
Vmag |
10.3 |
|
Sp |
|
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PmNote |
|
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PmRA |
|
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PmDE |
|
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Dm number |
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Cat1 |
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Name2 |
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Cat2 |
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HD |
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M HD |
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ADS BDS |
A 2456 |
|
M ADS BDS |
N |
|
N IDS |
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IDS |
03130S1429B |
|
HIC |
|
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