21143-3835 B 520 AB (HD 201991)
21h 14m 16.34s -38° 34' 40.6" P.A. 252.00 sep 0.8 mag 8.81,9.48 Sp F2 dist. 420.17 pc (1370.59 l.y.)
Coord 2000 |
21143-3835 |
|
Discov num |
B 520 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 14 16.34 -38 34 40.6 |
|
Date first |
1926 |
|
Date last |
2008 |
|
Obs |
13 |
|
Pa first |
242 |
|
Pa last |
252.3 |
|
P.A. Now (θ) |
252.3° |
|
Sep first |
0.9 |
|
Sep last |
0.812 |
|
Sep. Now (ρ) |
0.812" |
|
Mag pri |
8.81 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
0.67 |
|
Spectral class |
F2 (yellow-white) |
|
Pri motion ra |
-004 |
|
Sec motion ra |
-004 |
|
Pri motion dec |
-010 |
|
Sec motion dec |
-010 |
|
Notes |
|
|
Nature of this double is uncertain.
21143-3835 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 201991 |
212815 |
21 14 16 -38 34 41 |
B 520 AB |
2008 |
13 |
252 |
0.8 |
8.81 |
9.48 |
0.67 |
|
<=== |
Show |
|
212815 |
21 14 16 -38 34 41 |
HJ 5253 AC |
2015 |
13 |
183 |
10.4 |
8.81 |
9.53 |
0.72 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 201991 |
|
Constellation |
Microscopium |
|
SAO |
212815 |
|
HIP |
104835 |
|
Tycho2 |
7966-01198-1 |
|
Gaia DR2 |
6583524543613156352 |
|
HD |
201991 |
|
CD |
CD-3914165 |
|
Distance |
420.17 |
|
Distance ly |
1370.59 |
|
WDS 21143-3835 B 520 AB (HD 201991) : NOTES
discov_num |
notes |
refcode |
HJ 5253 |
AC: The C component was found to have a spectroscopic companion with a |
Tok2020h |
|
period of 11d. The close AB pair, estimated period 1.3k yr, may be |
|
|
responsible for proper motion differences, and this may be a physical |
|
|
quadruple. |
|
REFERENCES
refcode |
metd |
author |
reference |
Tok2020h |
not j |
Tokovinin, A. |
2020AJ....160...69T |
Tok2020h |
|
AJ 160, 69, 2020 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
B |
van den Bos, W.H. |
212 |
HJ |
Herschel, J.F.W. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
21143-3835 |
B 520 |
AB |
1991 |
12 |
248 |
0.8 |
8.81 |
9.48 |
F2 |
D |
211416.34-383440.6 |
21143-3835 |
B 520 |
AB |
2008 |
13 |
252 |
0.8 |
8.81 |
9.48 |
F2 |
D |
211416.34-383440.6 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 21143-3835 B 520 AB (HD 201991) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 21143-3835 B 520 AB (HD 201991) : MEASURES
No records found.
WDS 21143-3835 (HD 201991) : 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 21143-3835 (HD 201991) : ALADIN DSS IMAGE @ 21h 14m 16.34s -38° 34' 40.6"
WDS 21143-3835 B 520 AB (HD 201991) : 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 |
|
21143-3835 |
B 520 |
AB |
252 |
0.8 |
|
Show |
|
21143-3835 |
HJ 5253 |
AC |
183 |
10.4 |
|
Show |
|
21140-3858 |
TDT2844 |
|
69 |
0.5 |
24 |
Show |
|
21163-3845 |
LDS 737 |
|
157 |
7.2 |
27 |
Show |
|
21121-3811 |
HJ 5249 |
|
327 |
23.1 |
36 |
Show |
|
21187-3835 |
NSN 467 |
|
290 |
36.2 |
52 |
Show |
|
21156-3927 |
HJ 5254 |
A,BC |
191 |
57.8 |
55 |
Show |
|
21156-3927 |
B 521 |
BC |
50 |
0.5 |
56 |
Show |
|
21176-3914 |
SEE 442 |
|
40 |
4.9 |
56 |
Show |
|
21142-3936 |
WG 267 |
|
318 |
10.0 |
63 |
Show |
|
21208-3847 |
CVN 110 |
AB |
25 |
7.0 |
78 |
Show |
|
21075-3842 |
WG 266 |
|
299 |
3.4 |
81 |
Show |
|
21178-3945 |
CRU9019 |
AB |
230 |
117.1 |
82 |
Show |
|
21178-3945 |
CRU9019 |
AC |
62 |
62.8 |
82 |
Show |
|
21178-3945 |
TDT2890 |
Ba,Bb |
252 |
0.5 |
82 |
Show |
|
21196-3929 |
I 1438 |
|
57 |
3.8 |
83 |
Show |
|
21088-3927 |
CRU9015 |
|
88 |
23.6 |
83 |
Show |
|
21111-3717 |
COO 242 |
|
239 |
5.2 |
87 |
Show |
|
21097-3725 |
TDT2796 |
|
263 |
0.6 |
88 |
Show |
|
21065-3826 |
KIR 23 |
|
143 |
42.8 |
92 |
Show |
|
21136-3703 |
BRT1817 |
|
61 |
3.6 |
92 |
Show |
|
21107-3959 |
HDS3018 |
|
189 |
0.8 |
94 |
Show |
|
21221-3818 |
HDS3042 |
|
126 |
0.2 |
94 |
Show |
|
21087-3715 |
B 1895 |
|
119 |
0.9 |
104 |
Show |
|
21122-4016 |
CRU9018 |
AB |
212 |
122.8 |
105 |
Show |
|
21122-4016 |
CRU9018 |
AC |
237 |
146.0 |
105 |
Show |
|
21122-4016 |
CRU9018 |
AD |
250 |
180.1 |
105 |
Show |
|
21122-4016 |
CRU9018 |
AE |
268 |
219.6 |
105 |
Show |
|
21122-4016 |
CRU9018 |
AF |
326 |
122.7 |
105 |
Show |
|
21232-3800 |
LDS 741 |
|
290 |
8.9 |
109 |
Show |
|
21071-3944 |
KPP2409 |
|
194 |
20.9 |
109 |
Show |
|
21103-4014 |
CRU9017 |
|
303 |
25.0 |
110 |
Show |
|
21220-3733 |
B 525 |
|
171 |
0.9 |
110 |
Show |
|
21144-4025 |
UC 4416 |
|
140 |
12.5 |
111 |
Show |
|
21055-3933 |
TDT2734 |
|
35 |
0.4 |
118 |
Show |
|
21213-4011 |
WG 270 |
|
52 |
4.8 |
126 |
Show |
|
21236-3734 |
TDT2941 |
|
97 |
0.4 |
127 |
Show |
|
21162-4041 |
CBL 182 |
|
152 |
31.3 |
129 |
Show |
|
21251-3812 |
RST5478 |
|
126 |
1.4 |
130 |
Show |
|
21237-3947 |
SKF1173 |
|
153 |
94.0 |
131 |
Show |
|
21065-4012 |
WG 265 |
|
64 |
10.0 |
132 |
Show |
|
21114-3627 |
KPP2046 |
|
331 |
16.4 |
133 |
Show |
|
21030-3838 |
UC 4365 |
|
207 |
99.7 |
133 |
Show |
|
21029-3839 |
KPP4221 |
CD |
265 |
4.5 |
134 |
Show |
|
21034-3748 |
TDT2717 |
|
255 |
0.7 |
137 |
Show |
|
21257-3913 |
SEE 445 |
|
216 |
2.3 |
139 |
Show |
|
21209-3639 |
B 1006 |
|
151 |
5.7 |
140 |
Show |
|
21176-3619 |
UC 4431 |
|
146 |
15.1 |
142 |
Show |
|
21241-4002 |
UC 4465 |
|
50 |
38.1 |
144 |
Show |
|
21091-4047 |
CPO 620 |
AB |
347 |
20.1 |
146 |
Show |
|
21263-3801 |
B 2494 |
|
324 |
8.2 |
146 |
|
|
WDS 21143-3835 : COMPONENTS
|
A |
B |
B |
pa=247.8°
sep=0.65"
| |
C |
pa=182.1°
sep=10.42"
| pa=178.8°
sep=10.17"
|
21143-3835 A
Name |
HD 201991 |
|
Coord arcsec 2000 |
211416.34-383440.6 |
|
Mag |
8.81 |
|
Spectral class |
F2 (yellow-white) |
|
PmRA |
-4.00 |
|
PmDE |
-10.0 |
|
SAO |
212815 |
|
HIP |
104835 |
|
Tycho2 |
7966-01198-1 |
|
HD |
201991 |
|
CD |
CD-3914165 |
|
Tycho2 |
7966-01198-1 |
|
Pflag |
|
|
RAmdeg |
318.56802675 |
|
DEmdeg |
-38.57797293 |
|
PmRA |
-4.1 |
|
PmDE |
-10.0 |
|
E RAmdeg |
6 |
|
E DEmdeg |
8 |
|
E pmRA |
1.3 |
|
E pmDE |
1.4 |
|
EpRAm |
1991.20 |
|
EpDEm |
1990.68 |
|
Num |
9 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
2.1 |
|
Q pmRA |
0.9 |
|
Q pmDE |
2.2 |
|
BTmag |
8.950 |
|
E BTmag |
0.017 |
|
VTmag |
8.451 |
|
E VTmag |
0.013 |
|
Prox |
104 |
|
TYC |
T |
|
HIP |
104835 |
|
CCDM |
AB |
|
RAdeg |
318.56803917 |
|
DEdeg |
-38.57794778 |
|
EpRA 1990 |
1.75 |
|
EpDE 1990 |
1.39 |
|
E RAdeg |
5.5 |
|
E DEdeg |
8.1 |
|
Posflg |
P |
|
Corr |
-0.2 |
|
SAO |
212815 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0011 |
|
DE1950 |
|
|
PmDE1950 |
-0.036 |
|
Vmag |
7.8 |
|
SpType |
F2 |
|
Double code |
|
|
Source |
41 |
|
CatNum |
10954 |
|
DM |
CD-3914165 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
201991 |
|
M HD |
1 |
|
GC |
|
|
RA1950rad |
5.54628417 |
|
DE1950rad |
-0.6769328 |
|
PmRA2000 |
-0.001 |
|
PmDE2000 |
-0.039 |
|
Catalog |
H |
|
HIP |
104835 |
|
Proxy |
H |
|
RAhms |
21 14 16.34 |
|
DEdms |
-38 34 40.6 |
|
Vmag |
8.31 |
|
VarFlag |
|
|
R Vmag |
G |
|
RAdeg |
318.568 |
|
DEdeg |
-38.5779 |
|
AstroRef |
A |
|
Plx |
-0.38 |
|
CCDM |
21143-3835 |
|
N CCDM |
I |
|
Nsys |
2 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
P |
|
Qual |
B |
|
M HIP |
AB |
|
Theta |
252 |
|
Rho |
0.851 |
|
HD |
201991 |
|
BD |
|
|
CD |
CD-3914165 |
|
CP |
|
|
Dm number |
-3914165 |
|
VIred |
0.52 |
|
SpType |
K2/K3III+.. |
|
R SpType |
|
|
Coord arcsec 2000 |
211416.34-383440.6 |
|
HIP |
104835 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
5.5600622171 |
|
DErad |
-0.6733119399 |
|
Plx |
2.38 |
|
PmRA |
-7.65 |
|
PmDE |
-9.38 |
|
E RArad |
2.12 |
|
E DErad |
1.15 |
|
E Plx |
3.33 |
|
E pmRA |
3.97 |
|
E pmDE |
1.19 |
|
Hpmag |
8.0982 |
|
E Hpmag |
0.0019 |
|
SHp |
0.018 |
|
VA |
0 |
|
BV |
0.446 |
|
E BV |
0.015 |
|
VI |
0.52 |
|
Ccdm |
21143-3835 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
-1.71 |
|
DDEs |
18.1 |
|
R dRAs |
41 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
3 |
|
Vmag |
8.7 |
|
Sp |
F2 |
|
PmNote |
* |
|
PmRA |
-13 |
|
PmDE |
-36 |
|
Dm number |
-3914165 |
|
Cat1 |
CD |
|
Name2 |
212815 |
|
Cat2 |
SAO |
|
HD |
201991 |
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
21079S3859A |
|
HIC |
104835 |
|
21143-3835 B
Coord arcsec 2000 |
211416.29-383440.8 |
|
Mag |
9.48 |
|
PmRA |
-4.00 |
|
PmDE |
-10.0 |
|
Calc delta mag |
0.67 |
|
Calc coord |
yes |
|
Ccdm |
21143-3835 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
B 520 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1926 |
|
Theta |
247 |
|
Rho |
0.9 |
|
Obs |
9 |
|
Vmag |
9.4 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
21079S3859B |
|
HIC |
104835 |
|
21143-3835 C
Coord arcsec 2000 |
211416.31-383451.0 |
|
Mag |
9.53 |
|
PmRA |
-5.00 |
|
PmDE |
-12.0 |
|
HIP |
104833 |
|
Tycho2 |
7966-01199-1 |
|
Calc delta mag |
0.72 |
|
Calc coord |
yes |
|
Tycho2 |
7966-01199-1 |
|
Pflag |
|
|
RAmdeg |
318.56788886 |
|
DEmdeg |
-38.58086359 |
|
PmRA |
-5.0 |
|
PmDE |
-12.0 |
|
E RAmdeg |
11 |
|
E DEmdeg |
19 |
|
E pmRA |
1.7 |
|
E pmDE |
1.6 |
|
EpRAm |
1991.22 |
|
EpDEm |
1989.56 |
|
Num |
6 |
|
Q RAmdeg |
1.4 |
|
Q DEmdeg |
1.3 |
|
Q pmRA |
1.3 |
|
Q pmDE |
1.3 |
|
BTmag |
9.976 |
|
E BTmag |
0.027 |
|
VTmag |
9.527 |
|
E VTmag |
0.025 |
|
Prox |
104 |
|
TYC |
T |
|
HIP |
104833 |
|
CCDM |
C |
|
RAdeg |
318.56790361 |
|
DEdeg |
-38.58083444 |
|
EpRA 1990 |
1.80 |
|
EpDE 1990 |
1.34 |
|
E RAdeg |
11.1 |
|
E DEdeg |
19.3 |
|
Posflg |
D |
|
Corr |
0.0 |
|
Catalog |
H |
|
HIP |
104833 |
|
Proxy |
|
|
RAhms |
21 14 16.30 |
|
DEdms |
-38 34 51.0 |
|
Vmag |
8.12 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
318.568 |
|
DEdeg |
-38.5808 |
|
AstroRef |
C |
|
Plx |
-0.38 |
|
CCDM |
21143-3835 |
|
N CCDM |
I |
|
Nsys |
2 |
|
Ncomp |
1 |
|
MultFlag |
C |
|
Source |
F |
|
Qual |
B |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
201991 |
|
BD |
|
|
CD |
|
|
CP |
|
|
Dm number |
|
|
VIred |
0.46 |
|
SpType |
F2 |
|
R SpType |
|
|
Coord arcsec 2000 |
211416.30-383451.0 |
|
HIP |
104833 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
1 |
|
RArad |
5.5600591297 |
|
DErad |
-0.6733625694 |
|
Plx |
-118.14 |
|
PmRA |
-90.46 |
|
PmDE |
-92.22 |
|
E RArad |
20.94 |
|
E DErad |
12.39 |
|
E Plx |
25.76 |
|
E pmRA |
33.29 |
|
E pmDE |
10.72 |
|
Hpmag |
8.2148 |
|
E Hpmag |
0.0223 |
|
SHp |
0.168 |
|
VA |
0 |
|
BV |
0.42 |
|
E BV |
0.072 |
|
VI |
0.46 |
|
Ccdm |
21143-3835 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
HJ 5253 |
|
DRAs |
-1.72 |
|
DDEs |
8.3 |
|
R dRAs |
41 |
|
Year |
1904 |
|
Theta |
183 |
|
Rho |
10.4 |
|
Obs |
3 |
|
Vmag |
9.2 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
|
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
21079S3859C |
|
HIC |
104833 |
|