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Doubles in session


Current system
21236-3734
TDT 2941
HD 203491


Nearby doubles
20' : 21220-3733
B 525

28' : 21232-3800
LDS 741

35' : 21265-3728
KPP 623

42' : 21232-3653
SUB 9

42' : 21251-3812
RST5478

43' : 21263-3801
B 2494

48' : 21221-3818
HDS3042

53' : 21271-3700
BRT1820

64' : 21209-3639
B 1006

81' : 21208-3847
CVN 110AB

84' : 21276-3843
KPP1399

85' : 21187-3835
NSN 467

93' : 21265-3608
NSN 468

95' : 21225-3600
RST3284

100' : 21278-3900
WG 271

101' : 21318-3709
B 1896

102' : 21293-3850
I 133

102' : 21257-3913
SEE 445

105' : 21176-3619
UC 4431

106' : 21307-3838
B 530AB

107' : 21200-3557
UC 4443

108' : 21310-3633
B 1008AB

108' : 21285-3906
WG 272

111' : 21315-3834
I 1123AB

112' : 21163-3845
LDS 737

123' : 21176-3914
SEE 442



Selections
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Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21236-3734 TDT 2941 (HD 203491)

 
 
21h 23m 37.58s -37° 33' 58.8" P.A. 97.00 sep 0.4 mag 10.10,10.26 Sp K2/3III
 
 
Coord 2000 21236-3734 Discov num TDT2941 Comp Coord arcsec 2000 21 23 37.58 -37 33 58.8
Date first 1991 Date last 1991 Obs 1
Pa first 97 Pa last 96.8 P.A. Now (θ) 96.8°
Sep first 0.4 Sep last 0.43 Sep. Now (ρ) 0.43"
Mag pri 10.10 Mag sec 10.26 delta mag (ΔM) 0.16 Spectral class K2/3III (yellow-orange)
Pri motion ra +002 Sec motion ra +002
Pri motion dec +011 Sec motion dec +011
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203491 Constellation Microscopium Tycho2 7979-00156-1 Gaia DR2 6583816704468639104
HD 203491
 
 
WDS 21236-3734 TDT 2941 (HD 203491) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
No records found.

 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21236-3734 TDT2941 1991 1 97 0.4 10.10 10.26 212337.58-373358.8

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 21236-3734 TDT 2941 (HD 203491) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21236-3734 TDT 2941 (HD 203491) : MEASURES
 
 
No records found.

 
 
WDS 21236-3734 (HD 203491) : VIRTUAL EYEPIECE
 
 

21236-3734 TDT2941A mag 10.1 Sp K2/3III 21236-3734 TDT2941B sep 0.3 P.A. 98.60 mag 10.26 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21236-3734 (HD 203491) : ALADIN DSS IMAGE @ 21h 23m 37.58s -37° 33' 58.8"
 
 
 
 
WDS 21236-3734 TDT 2941 (HD 203491) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21236-3734 TDT2941 distance=0' 21220-3733 B 525 distance=20' 21232-3800 LDS 741 distance=28' 21265-3728 KPP 623 distance=35' 21232-3653 SUB 9 distance=42' 21251-3812 RST5478 distance=42' 21263-3801 B 2494 distance=43' 21221-3818 HDS3042 distance=48' 21271-3700 BRT1820 distance=53' 21209-3639 B 1006 distance=64' 21208-3847 CVN 110AB distance=81' 21276-3843 KPP1399 distance=84' 21187-3835 NSN 467 distance=85' 21265-3608 NSN 468 distance=93' 21225-3600 RST3284 distance=95' 21278-3900 WG 271 distance=100' 21318-3709 B 1896 distance=101' 21293-3850 I 133 distance=102' 21257-3913 SEE 445 distance=102' 21176-3619 UC 4431 distance=105' 21307-3838 B 530AB distance=106' 21307-3838 B 530AC distance=106' 21200-3557 UC 4443 distance=107' 21310-3633 B 1008AB distance=108' 21310-3633 HJ 5275AB,C distance=108' 21285-3906 WG 272 distance=108' 21315-3834 I 1123AB distance=111' 21315-3834 TOK 347AC distance=111' 21163-3845 LDS 737 distance=112' 21176-3914 SEE 442 distance=123' 21136-3703 BRT1817 distance=124' 21196-3929 I 1438 distance=124' 21224-3529 BRT1819 distance=126' 21143-3835 B 520AB distance=127' 21143-3835 HJ 5253AC distance=127' 21339-3806 B 2496 distance=127' 21237-3947 SKF1173 distance=133' 21140-3858 TDT2844 distance=142' 21121-3811 HJ 5249 distance=142' 21156-3927 HJ 5254A,BC distance=148' 21178-3945 CRU9019AB distance=148' 21178-3945 CRU9019AC distance=148' 21241-4002 UC 4465 distance=148' 21156-3927 B 521BC distance=149' 21178-3945 TDT2890Ba,Bb distance=150' 21111-3717 COO 242 distance=150' 21145-3551 UC 4418 distance=151' 21318-3538 KPP2207 distance=153' 21360-3824 RST2180 distance=155' 21223-3500 HJ 5264 distance=155' 21318-3534 B 1392 distance=156' grafico limitrofi
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 21236-3734 TDT2941 97 0.4
Show 21220-3733 B 525 171 0.9 20
Show 21232-3800 LDS 741 290 8.9 28
Show 21265-3728 KPP 623 60 5.7 35
Show 21232-3653 SUB 9 168 49.6 42
Show 21251-3812 RST5478 126 1.4 42
Show 21263-3801 B 2494 324 8.2 43
Show 21221-3818 HDS3042 126 0.2 48
Show 21271-3700 BRT1820 99 4.0 53
Show 21209-3639 B 1006 151 5.7 64
Show 21208-3847 CVN 110 AB 25 7.0 81
Show 21276-3843 KPP1399 345 10.5 84
Show 21187-3835 NSN 467 290 36.2 85
Show 21265-3608 NSN 468 163 2.6 93
Show 21225-3600 RST3284 180 0.6 95
Show 21278-3900 WG 271 121 4.1 100
Show 21318-3709 B 1896 53 0.2 101
Show 21293-3850 I 133 26 7.2 102
Show 21257-3913 SEE 445 216 2.3 102
Show 21176-3619 UC 4431 146 15.1 105
Show 21307-3838 B 530 AB 44 0.9 106
Show 21307-3838 B 530 AC 275 48.0 106
Show 21200-3557 UC 4443 249 24.4 107
Show 21310-3633 B 1008 AB 206 0.1 108
Show 21310-3633 HJ 5275 AB,C 200 40.4 108
Show 21285-3906 WG 272 85 7.5 108
Show 21315-3834 I 1123 AB 343 5.0 111
Show 21315-3834 TOK 347 AC 208 235.4 111
Show 21163-3845 LDS 737 157 7.2 112
Show 21176-3914 SEE 442 40 4.9 123
Show 21136-3703 BRT1817 61 3.6 124
Show 21196-3929 I 1438 57 3.8 124
Show 21224-3529 BRT1819 78 3.3 126
Show 21143-3835 B 520 AB 252 0.8 127
Show 21143-3835 HJ 5253 AC 183 10.4 127
Show 21339-3806 B 2496 127 1.0 127
Show 21237-3947 SKF1173 153 94.0 133
Show 21140-3858 TDT2844 69 0.5 142
Show 21121-3811 HJ 5249 327 23.1 142
Show 21156-3927 HJ 5254 A,BC 191 57.8 148
Show 21178-3945 CRU9019 AB 230 117.1 148
Show 21178-3945 CRU9019 AC 62 62.8 148
Show 21241-4002 UC 4465 50 38.1 148
Show 21156-3927 B 521 BC 50 0.5 149
Show 21178-3945 TDT2890 Ba,Bb 252 0.5 150
Show 21111-3717 COO 242 239 5.2 150
Show 21145-3551 UC 4418 283 8.9 151
Show 21318-3538 KPP2207 227 18.3 153
Show 21360-3824 RST2180 346 1.3 155
Show 21223-3500 HJ 5264 47 16.3 155
Show 21318-3534 B 1392 102 0.5 156

 
 
WDS 21236-3734 : COMPONENTS
 
 
  A
B pa=98.6°
sep=0.34"
 
 
21236-3734 A
 
 
Componente originario normalizzato AB Name HD 203491 Coord arcsec 2000 212337.58-373358.8 Mag 10.1
Spectral class K2/3III (yellow-orange) PmRA 2.00 PmDE 11.0 Tycho2 7979-00156-1
HD 203491
Tycho2
Tycho2 7979-00156-1 Pflag RAmdeg 320.90662211 DEmdeg -37.56633237
PmRA 2.4 PmDE 11.0 E RAmdeg 18 E DEmdeg 20
E pmRA 1.4 E pmDE 1.3 EpRAm 1987.47 EpDEm 1984.28
Num 9 Q RAmdeg 1.1 Q DEmdeg 0.9 Q pmRA 1.1
Q pmDE 1.0 BTmag 10.656 E BTmag 0.051 VTmag 9.508
E VTmag 0.028 Prox 999 TYC T HIP
CCDM RAdeg 320.90661722 DEdeg -37.56635806 EpRA 1990 1.74
EpDE 1990 1.87 E RAdeg 19.6 E DEdeg 24.4 Posflg
Corr 0.0
 
 
21236-3734 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212337.61-373358.9 Mag 10.26 PmRA 2.00
PmDE 11.0 Calc delta mag 0.16 Calc coord yes