10000+2433 CHR 145 (DH Leo)
10h 00m 01.70s +24° 33' 09.9" P.A. 158.00 sep 0.1 mag 8.12,10.43 Sp K0V dist. 31.69 pc (103.37 l.y.)
Coord 2000 |
10000+2433 |
|
Discov num |
CHR 145 |
|
Comp |
|
|
Coord arcsec 2000 |
10 00 01.70 +24 33 09.9 |
|
Date first |
1989 |
|
Date last |
2021 |
|
Obs |
25 |
|
Pa first |
38 |
|
Pa last |
157.6 |
|
P.A. Now (θ) |
157.6° |
|
Sep first |
0.2 |
|
Sep last |
0.121 |
|
Sep. Now (ρ) |
0.121" |
|
Mag pri |
8.12 |
|
Mag sec |
10.43 |
|
delta mag (ΔM) |
2.31 |
|
Spectral class |
K0V (yellow-orange) |
|
Pri motion ra |
-236 |
|
Sec motion ra |
|
|
Pri motion dec |
-032 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
DH Leo |
|
Constellation |
Leo |
|
SAO |
81134 |
|
HIP |
49018 |
|
Tycho2 |
1961-01385-1 |
|
Gaia DR2 |
642660938662899456 |
|
HD |
86590 |
|
GC |
13748 |
|
GL |
NN 3580 |
|
BD |
BD+25 2191 |
|
Distance |
31.69 |
|
Distance ly |
103.37 |
|
ORBITAL ELEMENTS
Period (P) | 44.13y | |
Periastron (T) | 2003.21y | |
Semi-major axis (a) | 0.437a | |
Eccentricity (e) | 0.748 | |
Inclination (i) | 96.3° | |
Longitude of periastron (ω) | 271.6° | |
Node (Ω) | 197.5° | |
Notes | n | |
Reference | Hrt2012a | |
Equinox | 2000 | |
Last observation | 2011 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
20.7 |
0.267 |
2001 |
18.9 |
0.229 |
2002 |
15.9 |
0.159 |
2003 |
356.6 |
0.033 |
2004 |
201.2 |
0.118 |
2005 |
196.8 |
0.204 |
2006 |
194.6 |
0.248 |
2007 |
192.9 |
0.271 |
2008 |
191.4 |
0.281 |
2009 |
190.0 |
0.283 |
2010 |
188.6 |
0.280 |
2011 |
187.1 |
0.272 |
2012 |
185.5 |
0.262 |
2013 |
183.8 |
0.249 |
2014 |
181.8 |
0.234 |
2015 |
179.6 |
0.218 |
2016 |
177.0 |
0.201 |
2017 |
173.9 |
0.183 |
2018 |
170.2 |
0.165 |
2019 |
165.5 |
0.147 |
2020 |
159.5 |
0.130 |
2021 |
151.8 |
0.113 |
2022 |
141.7 |
0.100 |
2023 |
128.8 |
0.089 |
2024 |
113.5 |
0.084 |
2025 |
97.5 |
0.085 |
2026 |
82.8 |
0.092 |
2027 |
70.9 |
0.104 |
2028 |
61.6 |
0.118 |
2029 |
54.5 |
0.135 |
2030 |
49.0 |
0.153 |
|
|
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 10000+2433 CHR 145 (DH Leo) : NOTES
discov_num |
notes |
refcode |
CHR 145 |
The primary is DH Leo, a RS CVn system, and spectroscopic binary with |
|
|
a period of 1.07d (Barden, AJ 89, 683, 1984). Barden observed three K |
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stars in his spectra of this system. Fekel (1989, private comm.) has |
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observed the third component of this system and finds no velocity |
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|
changes in excess of +/- 2 km/sec from 12 spectra obtained since 1984. |
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|
This new speckle component is thought to be this third spectroscopic |
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|
component. |
McA1990 |
REFERENCES
refcode |
metd |
author |
reference |
Hrt2012a |
orb - |
Hartkopf, W.I., Tokovinin, A., & Mason, B.D. |
2012AJ....143...42H |
Hrt2012a |
+lin |
AJ 143, 42, 2012 |
|
McA1990 |
Sc j |
McAlister, H.A., Hartkopf, & Franz, O.G. |
1990AJ.....99..965M |
McA1990 |
|
AJ 99, 965, 1990 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
CHR |
Center for High Ang. Res. Astronomy (speckle interferometry systems) |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
10000+2433 |
CHR 145 |
|
2004 |
13 |
197 |
0.2 |
8.12 |
10.43 |
K0V |
N D |
100001.86+243310.2 |
10000+2433 |
CHR 145 |
|
2009 |
14 |
10 |
0.3 |
8.12 |
10.43 |
K0V |
N D |
100001.86+243310.2 |
10000+2433 |
CHR 145 |
|
2011 |
17 |
188 |
0.3 |
8.12 |
10.43 |
K0V |
NOD |
100001.86+243310.2 |
10000+2433 |
CHR 145 |
|
2014 |
18 |
183 |
0.2 |
8.12 |
10.43 |
K0V |
NO |
100001.86+243310.2 |
10000+2433 |
CHR 145 |
|
2018 |
21 |
172 |
0.2 |
8.12 |
10.43 |
K0V |
NO |
100001.70+243309.9 |
10000+2433 |
CHR 145 |
|
2019 |
22 |
169 |
0.2 |
8.12 |
10.43 |
K0V |
NO |
100001.70+243309.9 |
10000+2433 |
CHR 145 |
|
2021 |
25 |
158 |
0.1 |
8.12 |
10.43 |
K0V |
NO |
100001.70+243309.9 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 10000+2433 CHR 145 (DH Leo) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 10000+2433 CHR 145 (DH Leo) : MEASURES
No records found.
WDS 10000+2433 (DH Leo) : 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 10000+2433 (DH Leo) : ALADIN DSS IMAGE @ 10h 00m 01.70s +24° 33' 09.9"
WDS 10000+2433 CHR 145 (DH Leo) : 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 |
|
10000+2433 |
CHR 145 |
|
158 |
0.1 |
|
Show |
|
09595+2415 |
POU3066 |
|
59 |
11.2 |
19 |
Show |
|
09599+2408 |
POU3067 |
|
69 |
6.5 |
25 |
Show |
|
09582+2412 |
UC 1855 |
|
184 |
9.6 |
33 |
Show |
|
10012+2502 |
SHN 19 |
|
275 |
0.3 |
34 |
Show |
|
10026+2420 |
POU3070 |
|
263 |
9.9 |
37 |
Show |
|
10017+2506 |
DAM1928 |
|
230 |
3.1 |
40 |
Show |
|
10014+2352 |
FMR 89 |
|
172 |
6.2 |
45 |
Show |
|
10022+2359 |
POU3069 |
|
343 |
3.5 |
46 |
Show |
|
09561+2433 |
TDS6906 |
|
68 |
1.0 |
54 |
Show |
|
09567+2503 |
STF1397 |
|
96 |
1.1 |
54 |
Show |
|
09578+2526 |
SLW 411 |
|
332 |
21.4 |
62 |
Show |
|
09551+2438 |
TOK 272 |
|
26 |
461.9 |
68 |
Show |
|
09553+2458 |
LAS 13 |
|
238 |
10.1 |
70 |
Show |
|
10040+2521 |
COU 589 |
|
68 |
0.4 |
73 |
Show |
|
09547+2428 |
NSN 36 |
|
197 |
4.8 |
74 |
Show |
|
09577+2540 |
COU 938 |
|
64 |
0.1 |
75 |
Show |
|
09559+2344 |
POU3063 |
|
10 |
4.6 |
75 |
Show |
|
09543+2418 |
POU3062 |
|
340 |
10.6 |
81 |
Show |
|
09588+2604 |
GRV 806 |
|
343 |
29.9 |
93 |
Show |
|
10049+2543 |
LDS3954 |
|
313 |
11.4 |
96 |
Show |
|
09589+2255 |
POU3065 |
|
142 |
14.4 |
100 |
Show |
|
09554+2559 |
UC 1844 |
|
298 |
11.0 |
107 |
Show |
|
10023+2621 |
COU1125 |
|
251 |
2.8 |
113 |
Show |
|
10085+2419 |
LSC 125 |
|
307 |
0.4 |
117 |
Show |
|
10036+2619 |
LDS3951 |
|
278 |
16.0 |
117 |
Show |
|
10011+2237 |
POU3068 |
|
142 |
18.8 |
117 |
Show |
|
10038+2246 |
POU3071 |
|
161 |
6.1 |
119 |
Show |
|
09514+2456 |
CBL 291 |
|
84 |
21.4 |
120 |
Show |
|
09574+2237 |
SLW 410 |
|
20 |
149.7 |
122 |
Show |
|
09510+2432 |
CVR1247 |
|
277 |
4.0 |
123 |
Show |
|
09513+2507 |
TDS6856 |
|
92 |
0.5 |
125 |
Show |
|
10066+2602 |
TDS 569 |
|
89 |
2.3 |
126 |
Show |
|
10059+2611 |
KPP3224 |
|
177 |
0.8 |
127 |
Show |
|
09542+2612 |
COU1124 |
|
295 |
0.6 |
127 |
Show |
|
09508+2410 |
CVR 93 |
|
107 |
53.7 |
129 |
Show |
|
09568+2232 |
POU3064 |
|
183 |
5.8 |
131 |
Show |
|
09571+2639 |
CBL 295 |
|
101 |
50.6 |
133 |
Show |
|
10092+2501 |
FOX 165 |
|
70 |
7.5 |
133 |
Show |
|
10091+2531 |
A 1988 |
|
229 |
0.4 |
136 |
Show |
|
09537+2239 |
POU3061 |
|
265 |
21.9 |
143 |
Show |
|
10077+2255 |
POU3073 |
|
349 |
11.4 |
147 |
Show |
|
10059+2241 |
POU3072 |
|
282 |
4.1 |
147 |
Show |
|
09580+2208 |
UC 1853 |
|
163 |
15.6 |
148 |
Show |
|
10106+2353 |
A 1989 |
|
285 |
3.4 |
151 |
Show |
|
09517+2617 |
COU1122 |
|
88 |
1.0 |
153 |
Show |
|
09488+2424 |
POU3059 |
|
67 |
7.9 |
154 |
Show |
|
09489+2509 |
CVR1244 |
|
221 |
4.5 |
156 |
Show |
|
09585+2159 |
CHE 143 |
|
317 |
22.9 |
156 |
Show |
|
10092+2259 |
CVR1268 |
|
160 |
3.1 |
157 |
Show |
|
09530+2638 |
COU1123 |
|
76 |
0.4 |
157 |
|
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WDS 10000+2433 : COMPONENTS
10000+2433 A
Componente originario normalizzato |
AB |
|
Var name |
DH Leo |
|
Coord arcsec 2000 |
100001.70+243309.9 |
|
Mag |
8.12 |
|
Spectral class |
K0V (yellow-orange) |
|
PmRA |
-236.00 |
|
PmDE |
-32.0 |
|
SAO |
81134 |
|
HIP |
49018 |
|
Tycho2 |
1961-01385-1 |
|
HD |
86590 |
|
GC |
13748 |
|
BD |
BD+25 2191 |
|
Tycho2 |
1961-01385-1 |
|
Pflag |
|
|
RAmdeg |
150.00710846 |
|
DEmdeg |
24.55274776 |
|
PmRA |
-233.2 |
|
PmDE |
-33.1 |
|
E RAmdeg |
5 |
|
E DEmdeg |
6 |
|
E pmRA |
1.0 |
|
E pmDE |
1.0 |
|
EpRAm |
1990.98 |
|
EpDEm |
1990.50 |
|
Num |
18 |
|
Q RAmdeg |
1.6 |
|
Q DEmdeg |
1.5 |
|
Q pmRA |
1.6 |
|
Q pmDE |
1.5 |
|
BTmag |
8.980 |
|
E BTmag |
0.017 |
|
VTmag |
7.971 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
49018 |
|
CCDM |
AB |
|
RAdeg |
150.00771528 |
|
DEdeg |
24.55282833 |
|
EpRA 1990 |
1.48 |
|
EpDE 1990 |
1.24 |
|
E RAdeg |
5.4 |
|
E DEdeg |
6.2 |
|
Posflg |
|
|
Corr |
0.3 |
|
SAO |
81134 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0177 |
|
DE1950 |
|
|
PmDE1950 |
-0.03 |
|
Vmag |
7.9 |
|
SpType |
G5 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
13748 |
|
DM |
BD+25 2191 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
86590 |
|
M HD |
0 |
|
GC |
13748 |
|
RA1950rad |
2.60586987 |
|
DE1950rad |
0.43272899 |
|
PmRA2000 |
-0.0177 |
|
PmDE2000 |
-0.025 |
|
Catalog |
H |
|
HIP |
49018 |
|
Proxy |
H |
|
RAhms |
10 00 01.86 |
|
DEdms |
+24 33 10.2 |
|
Vmag |
7.86 |
|
VarFlag |
1 |
|
R Vmag |
H |
|
RAdeg |
150.008 |
|
DEdeg |
24.5528 |
|
AstroRef |
* |
|
Plx |
30.82 |
|
CCDM |
10000+2433 |
|
N CCDM |
M |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
46 |
|
Rho |
0.22 |
|
HD |
86590 |
|
BD |
BD+25 2191 |
|
CD |
|
|
CP |
|
|
Dm number |
+25 2191 |
|
VIred |
0.89 |
|
SpType |
K0V SB |
|
R SpType |
|
|
Coord arcsec 2000 |
100001.86+243310.2 |
|
HIP |
49018 |
|
Sn |
55 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
2.6181287897 |
|
DErad |
0.4285276982 |
|
Plx |
31.56 |
|
PmRA |
-233.23 |
|
PmDE |
-35.5 |
|
E RArad |
0.63 |
|
E DErad |
0.55 |
|
E Plx |
0.85 |
|
E pmRA |
0.66 |
|
E pmDE |
0.51 |
|
Hpmag |
8.0013 |
|
E Hpmag |
0.003 |
|
SHp |
0.032 |
|
VA |
1 |
|
BV |
0.868 |
|
E BV |
0.012 |
|
VI |
0.88 |
|
Ccdm |
10000+2433 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
1.70 |
|
DDEs |
9.5 |
|
R dRAs |
81 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
8.4 |
|
Sp |
K0 |
|
PmNote |
@ |
|
PmRA |
-234 |
|
PmDE |
-38 |
|
Dm number |
+25 2191 |
|
Cat1 |
BD |
|
Name2 |
+24 1119 |
|
Cat2 |
AGK2/3 |
|
HD |
86590 |
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
N |
|
N IDS |
W |
|
IDS |
10000+2433A |
|
HIC |
49018 |
|
10000+2433 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
100001.70+243309.8 |
|
Mag |
10.43 |
|
Calc delta mag |
2.31 |
|
Calc coord |
yes |
|
Ccdm |
10000+2433 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
CHR 145 |
|
DRAs |
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|
DDEs |
|
|
R dRAs |
|
|
Year |
1989 |
|
Theta |
38 |
|
Rho |
0.2 |
|
Obs |
1 |
|
Vmag |
|
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
W |
|
IDS |
10000+2433B |
|
HIC |
49018 |
|