20530+4258 COU 2542
20h 52m 57.26s +42° 58' 25.7" P.A. 199.00 sep 0.1 mag 10.46,12.03 Sp K2 dist. 116.28 pc (379.31 l.y.)
Coord 2000 |
20530+4258 |
|
Discov num |
COU2542 |
|
Comp |
|
|
Coord arcsec 2000 |
20 52 57.26 +42 58 25.7 |
|
Date first |
1988 |
|
Date last |
2014 |
|
Obs |
11 |
|
Pa first |
88 |
|
Pa last |
198.5 |
|
P.A. Now (θ) |
198.5° |
|
Sep first |
0.4 |
|
Sep last |
0.109 |
|
Sep. Now (ρ) |
0.109" |
|
Mag pri |
10.46 |
|
Mag sec |
12.03 |
|
delta mag (ΔM) |
1.57 |
|
Spectral class |
K2 (yellow-orange) |
|
Pri motion ra |
+094 |
|
Sec motion ra |
|
|
Pri motion dec |
+137 |
|
Sec motion dec |
|
|
Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
HIP |
103067 |
|
Tycho2 |
3175-00219-1 |
|
Gaia DR2 |
2066014238730126080 |
|
BD |
BD+42 3895 |
|
Distance |
116.28 |
|
Distance ly |
379.31 |
|
ORBITAL ELEMENTS
Period (P) | 202.1y | ± 34.4 |
Periastron (T) | 2023.9y | ± 2.6 |
Semi-major axis (a) | 0.477a | ± 0.04 |
Eccentricity (e) | 0.374 | ± 0.037 |
Inclination (i) | 76.2° | ± 0.3 |
Longitude of periastron (ω) | 136.3° | ± 11.5 |
Node (Ω) | 76.5° | ± 0.5 |
Notes | | |
Reference | BAE2021 | |
Equinox | | |
Last observation | | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
94.5 |
0.244 |
2001 |
96.1 |
0.228 |
2002 |
97.9 |
0.212 |
2003 |
100.1 |
0.196 |
2004 |
102.6 |
0.179 |
2005 |
105.7 |
0.163 |
2006 |
109.4 |
0.147 |
2007 |
114.1 |
0.131 |
2008 |
120.0 |
0.116 |
2009 |
127.5 |
0.103 |
2010 |
137.1 |
0.091 |
2011 |
149.0 |
0.083 |
2012 |
163.0 |
0.078 |
2013 |
177.8 |
0.078 |
2014 |
191.6 |
0.083 |
2015 |
203.3 |
0.092 |
2016 |
212.7 |
0.104 |
2017 |
220.0 |
0.118 |
2018 |
225.7 |
0.132 |
2019 |
230.3 |
0.148 |
2020 |
234.0 |
0.163 |
2021 |
237.1 |
0.179 |
2022 |
239.7 |
0.194 |
2023 |
241.9 |
0.209 |
2024 |
243.8 |
0.223 |
2025 |
245.5 |
0.236 |
2026 |
247.1 |
0.249 |
2027 |
248.4 |
0.261 |
2028 |
249.7 |
0.272 |
2029 |
250.9 |
0.282 |
2030 |
252.0 |
0.292 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 20530+4258 COU 2542 : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
BAE2021 |
orb j |
Baidin, A.E. & Krechet, V.G. |
2021AstBu..76...84B |
BAE2021 |
|
Astrophys. Bull. 76, 84, 2021 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
COU |
Couteau, P. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
20530+4258 |
COU2542 |
|
1999 |
5 |
94 |
0.2 |
10.46 |
12.03 |
K2 |
D |
205257.26+425825.7 |
20530+4258 |
COU2542 |
|
2007 |
7 |
119 |
0.1 |
10.46 |
12.03 |
K2 |
D |
205257.26+425825.7 |
20530+4258 |
COU2542 |
|
2010 |
8 |
144 |
0.1 |
10.46 |
12.03 |
K2 |
D |
205257.26+425825.7 |
20530+4258 |
COU2542 |
|
2014 |
11 |
199 |
0.1 |
10.46 |
12.03 |
K2 |
O |
205257.26+425825.7 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20530+4258 COU 2542 : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20530+4258 COU 2542 : MEASURES
No records found.
WDS 20530+4258 : 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 20530+4258 : ALADIN DSS IMAGE @ 20h 52m 57.26s +42° 58' 25.7"
WDS 20530+4258 COU 2542 : 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 |
|
20530+4258 |
COU2542 |
|
199 |
0.1 |
|
Show |
|
20519+4309 |
GRV 389 |
|
190 |
61.9 |
16 |
Show |
|
20524+4314 |
LDS2462 |
|
265 |
39.5 |
17 |
Show |
|
20517+4317 |
LDS2461 |
|
217 |
32.6 |
24 |
Show |
|
20513+4238 |
A 614 |
|
333 |
1.5 |
28 |
Show |
|
20535+4328 |
LDS2465 |
|
41 |
12.1 |
30 |
Show |
|
20508+4238 |
LDS2457 |
|
106 |
5.1 |
32 |
Show |
|
20556+4243 |
BRT2282 |
|
276 |
2.5 |
34 |
Show |
|
20553+4322 |
LDS2468 |
|
107 |
60.0 |
36 |
Show |
|
20553+4231 |
STT 423 |
|
76 |
2.7 |
38 |
Show |
|
20564+4308 |
COU2544 |
|
160 |
0.4 |
39 |
Show |
|
20511+4224 |
BRT2277 |
|
230 |
4.2 |
40 |
Show |
|
20568+4254 |
ENG 77 |
BC |
69 |
102.7 |
42 |
Show |
|
20568+4254 |
ENG 77 |
AB |
328 |
100.0 |
43 |
Show |
|
20568+4254 |
ENG 77 |
AC |
17 |
125.8 |
43 |
Show |
|
20568+4254 |
ENG 77 |
CD |
356 |
92.9 |
44 |
Show |
|
20550+4219 |
LDS2467 |
|
193 |
20.0 |
46 |
Show |
|
20553+4218 |
OSO 137 |
AB |
116 |
10.8 |
48 |
Show |
|
20553+4218 |
OSO 137 |
AC |
225 |
11.6 |
48 |
Show |
|
20553+4218 |
OSO 137 |
AD |
276 |
14.3 |
48 |
Show |
|
20553+4218 |
OSO 137 |
AE |
295 |
14.9 |
48 |
Show |
|
20553+4218 |
OSO 137 |
AF |
137 |
16.8 |
48 |
Show |
|
20553+4218 |
OSO 137 |
AG |
346 |
25.0 |
48 |
Show |
|
20520+4346 |
SKF2740 |
BC |
192 |
73.4 |
49 |
Show |
|
20520+4346 |
STT 416 |
AB |
117 |
9.6 |
49 |
Show |
|
20534+4208 |
LDS2464 |
|
331 |
43.8 |
51 |
Show |
|
20569+4233 |
GRV 399 |
|
6 |
64.8 |
51 |
Show |
|
20547+4211 |
CVR 233 |
|
235 |
61.5 |
52 |
Show |
|
20573+4319 |
ES 1450 |
|
162 |
4.7 |
52 |
Show |
|
20565+4333 |
BRT1139 |
|
175 |
3.6 |
52 |
Show |
|
20568+4335 |
BRT1957 |
|
177 |
1.1 |
56 |
Show |
|
20559+4345 |
COU2543 |
|
222 |
1.6 |
57 |
Show |
|
20584+4303 |
ES 1575 |
|
356 |
5.3 |
62 |
Show |
|
20474+4314 |
TDT2539 |
|
77 |
0.5 |
63 |
Show |
|
20590+4259 |
LDS2475 |
|
90 |
12.2 |
66 |
Show |
|
20584+4326 |
ES 1451 |
|
101 |
8.6 |
67 |
Show |
|
20592+4257 |
ES 1576 |
|
350 |
3.7 |
69 |
Show |
|
20501+4404 |
STT 595 |
AB |
48 |
55.4 |
73 |
Show |
|
20501+4404 |
STG 9 |
AC |
83 |
102.7 |
73 |
Show |
|
20501+4404 |
FYM 92 |
AD |
242 |
51.8 |
73 |
Show |
|
20501+4404 |
FYM 92 |
AE |
190 |
35.2 |
73 |
Show |
|
20501+4404 |
FYM 92 |
AF |
80 |
46.9 |
73 |
Show |
|
20472+4225 |
STT 414 |
AB |
95 |
9.9 |
73 |
Show |
|
20472+4225 |
BOT 4 |
AC |
16 |
104.9 |
73 |
Show |
|
20590+4330 |
LDS2476 |
|
65 |
3.0 |
74 |
Show |
|
20470+4335 |
GRV 380 |
AB |
16 |
21.4 |
75 |
Show |
|
20470+4335 |
GRV 380 |
AC |
312 |
44.6 |
75 |
Show |
|
20476+4347 |
CHN 28 |
|
57 |
5.0 |
76 |
Show |
|
20473+4345 |
COU2425 |
|
58 |
0.2 |
77 |
Show |
|
20479+4204 |
ES 1573 |
|
39 |
5.0 |
79 |
Show |
|
20512+4415 |
CHN 31 |
|
47 |
6.7 |
79 |
|
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WDS 20530+4258 : COMPONENTS
20530+4258 A
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
205257.26+425825.7 |
|
Mag |
10.46 |
|
Spectral class |
K2 (yellow-orange) |
|
PmRA |
94.00 |
|
PmDE |
137.0 |
|
HIP |
103067 |
|
Tycho2 |
3175-00219-1 |
|
BD |
BD+42 3895 |
|
Tycho2 |
3175-00219-1 |
|
Pflag |
|
|
RAmdeg |
313.23893805 |
|
DEmdeg |
42.97413473 |
|
PmRA |
99.0 |
|
PmDE |
141.0 |
|
E RAmdeg |
23 |
|
E DEmdeg |
23 |
|
E pmRA |
1.2 |
|
E pmDE |
1.2 |
|
EpRAm |
1985.83 |
|
EpDEm |
1985.40 |
|
Num |
7 |
|
Q RAmdeg |
0.7 |
|
Q DEmdeg |
1.4 |
|
Q pmRA |
0.7 |
|
Q pmDE |
1.4 |
|
BTmag |
11.359 |
|
E BTmag |
0.058 |
|
VTmag |
10.275 |
|
E VTmag |
0.035 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
103067 |
|
CCDM |
AB |
|
RAdeg |
313.23862694 |
|
DEdeg |
42.97381444 |
|
EpRA 1990 |
1.66 |
|
EpDE 1990 |
1.67 |
|
E RAdeg |
27.3 |
|
E DEdeg |
26.9 |
|
Posflg |
P |
|
Corr |
-0.1 |
|
Catalog |
H |
|
HIP |
103067 |
|
Proxy |
H |
|
RAhms |
20 52 57.26 |
|
DEdms |
+42 58 25.7 |
|
Vmag |
10.09 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
313.239 |
|
DEdeg |
42.9738 |
|
AstroRef |
A |
|
Plx |
9.47 |
|
CCDM |
20530+4258 |
|
N CCDM |
M |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
AB |
|
Theta |
87 |
|
Rho |
0.371 |
|
HD |
|
|
BD |
BD+42 3895 |
|
CD |
|
|
CP |
|
|
Dm number |
+42 3895 |
|
VIred |
1.47 |
|
SpType |
K2 |
|
R SpType |
|
|
Coord arcsec 2000 |
205257.26+425825.7 |
|
HIP |
103067 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
5.4670447687 |
|
DErad |
0.7500341976 |
|
Plx |
8.6 |
|
PmRA |
105.07 |
|
PmDE |
144.97 |
|
E RArad |
1.3 |
|
E DErad |
1.2 |
|
E Plx |
1.64 |
|
E pmRA |
1.49 |
|
E pmDE |
1.28 |
|
Hpmag |
10.2316 |
|
E Hpmag |
0.0037 |
|
SHp |
0.036 |
|
VA |
0 |
|
BV |
0.988 |
|
E BV |
0.064 |
|
VI |
1.03 |
|
Ccdm |
20530+4258 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-2.70 |
|
DDEs |
27.1 |
|
R dRAs |
81 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
2 |
|
Vmag |
9.8 |
|
Sp |
K2 |
|
PmNote |
@ |
|
PmRA |
94 |
|
PmDE |
142 |
|
Dm number |
+42 3895 |
|
Cat1 |
BD |
|
Name2 |
+42 1940 |
|
Cat2 |
AGK2/3 |
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
* |
|
IDS |
20493N4235A |
|
HIC |
103067 |
|
20530+4258 B
Componente originario normalizzato |
AB |
|
Coord arcsec 2000 |
205257.26+425825.6 |
|
Mag |
12.03 |
|
Calc delta mag |
1.57 |
|
Calc coord |
yes |
|
Ccdm |
20530+4258 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
COU2542 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1988 |
|
Theta |
87 |
|
Rho |
0.4 |
|
Obs |
2 |
|
Vmag |
10.8 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
* |
|
IDS |
20493N4235B |
|
HIC |
103067 |
|