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Current system
21212-2744
HDS 3040
HD 203144


Nearby doubles
20' : 21210-2725
UC 4451

30' : 21200-2718
BU 252

34' : 21231-2806
HDS3047

46' : 21229-2705
I 1441

53' : 21194-2831
B 523

55' : 21178-2714
STN 54

61' : 21166-2746
BRT3100

69' : 21161-2802
LDS5920

72' : 21257-2706
TDT2956

72' : 21251-2831
LDS5923

74' : 21188-2637
SEE 443

77' : 21169-2836
DAW 154

79' : 21181-2636
KPP 713

82' : 21157-2803
BRT3099

85' : 21162-2651
RST2175

85' : 21198-2621
BU 271AB

91' : 21212-2914
FIN 6

91' : 21266-2839
TDT2970

96' : 21154-2842
LDS4874

97' : 21205-2920
LDS5921

102' : 21136-2725
LDS5919

110' : 21146-2849
LDS4872

110' : 21140-2650
RST2174

115' : 21181-2931
LDS 738AB

115' : 21173-2601
UC 4428

117' : 21179-2555
RST1086



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Neglected List I
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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21212-2744 HDS 3040 (HD 203144)

 
 
21h 21m 09.23s -27° 43' 50.7" P.A. 65.00 sep 0.3 mag 8.80,11.76 Sp A6V dist. 109.41 pc (356.9 l.y.)
 
 
Coord 2000 21212-2744 Discov num HDS3040 Comp Coord arcsec 2000 21 21 09.23 -27 43 50.7
Date first 1991 Date last 2021 Obs 7
Pa first 46 Pa last 65.1 P.A. Now (θ) 65.1°
Sep first 0.3 Sep last 0.272 Sep. Now (ρ) 0.272"
Mag pri 8.80 Mag sec 11.76 delta mag (ΔM) 2.96 Spectral class A6V (white)
Pri motion ra +030 Sec motion ra
Pri motion dec +011 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 203144 Constellation Microscopium SAO 190251 HIP 105418
Tycho2 6946-00855-1 Gaia DR2 6789702249633785728 HD 203144 CD CD-2817235
CP CP-28 7432 Distance 109.41 Distance ly 356.9
 
 
WDS 21212-2744 HDS 3040 (HD 203144) : NOTES
 
 
discov_num notes refcode
HDS3040 LSC 97.
 
 
REFERENCES
 
 
refcode metd author reference
HDS Hipparcos Double Star (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21212-2744 HDS3040 1991 1 46 0.3 8.80 11.76 A6V 212109.23-274350.7
21212-2744 HDS3040 2014 2 67 0.3 8.80 11.76 A6V 212109.23-274350.7
21212-2744 HDS3040 2019 6 65 0.3 8.80 11.76 A6V N 212109.23-274350.7
21212-2744 HDS3040 2021 7 65 0.3 8.80 11.76 A6V N 212109.23-274350.7

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

 
 
WDS 21212-2744 HDS 3040 (HD 203144) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21212-2744 HDS 3040 (HD 203144) : MEASURES
 
 
No records found.

 
 
WDS 21212-2744 (HD 203144) : VIRTUAL EYEPIECE
 
 

21212-2744 HDS3040A mag 8.8 Sp A6V 21212-2744 HDS3040B sep 0.2 P.A. 62.30 mag 11.76 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21212-2744 (HD 203144) : ALADIN DSS IMAGE @ 21h 21m 09.23s -27° 43' 50.7"
 
 
 
 
WDS 21212-2744 HDS 3040 (HD 203144) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21212-2744 HDS3040 distance=0' 21210-2725 UC 4451 distance=20' 21200-2718 BU 252 distance=30' 21231-2806 HDS3047 distance=34' 21229-2705 I 1441 distance=46' 21194-2831 B 523 distance=53' 21178-2714 STN 54 distance=55' 21166-2746 BRT3100 distance=61' 21161-2802 LDS5920 distance=69' 21257-2706 TDT2956 distance=72' 21251-2831 LDS5923 distance=72' 21188-2637 SEE 443 distance=74' 21169-2836 DAW 154 distance=77' 21181-2636 KPP 713 distance=79' 21157-2803 BRT3099 distance=82' 21162-2651 RST2175 distance=85' 21198-2621 BU 271AB distance=85' 21198-2621 BU 271AC distance=85' 21198-2621 BU 271AD distance=85' 21198-2621 BU 271AE distance=85' 21212-2914 FIN 6 distance=91' 21266-2839 TDT2970 distance=91' 21154-2842 LDS4874 distance=96' 21205-2920 LDS5921 distance=97' 21136-2725 LDS5919 distance=102' 21146-2849 LDS4872 distance=110' 21140-2650 RST2174 distance=110' 21181-2931 LDS 738AB distance=115' 21181-2931 LDS 738Aa,Ab distance=115' 21173-2601 UC 4428 distance=115' 21179-2555 RST1086 distance=117' 21121-2735 HJ 3012 distance=121' 21131-2850 BRT3096 distance=126' 21149-2921 HDS3022 distance=128' 21125-2649 UC 4402 distance=129' 21140-2914 RST2173 distance=131' 21242-2534 BU 1035 distance=137' 21316-2740 KPP 496 distance=139' 21148-2555 HJ 3014 distance=139' 21146-2935 B 2492 distance=142' 21224-2523 TDT2932 distance=143' 21105-2711 BRG 32 distance=146' 21140-2940 MET 91 distance=150' 21218-3014 UC 4457 distance=151' 21113-2632 TDT2811 distance=151' 21111-2858 HU 85 distance=153' 21157-2526 RST3281 distance=157' 21192-3018 RST2176AB distance=157' 21192-3018 WIS 348AC distance=157' 21335-2753 BVD 137 distance=165' 21288-2955 RST2178 distance=166' 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 21212-2744 HDS3040 65 0.3
Show 21210-2725 UC 4451 203 24.7 20
Show 21200-2718 BU 252 88 2.1 30
Show 21231-2806 HDS3047 103 0.1 34
Show 21229-2705 I 1441 159 1.8 46
Show 21194-2831 B 523 212 0.8 53
Show 21178-2714 STN 54 238 7.1 55
Show 21166-2746 BRT3100 168 7.1 61
Show 21161-2802 LDS5920 15 52.4 69
Show 21257-2706 TDT2956 239 0.5 72
Show 21251-2831 LDS5923 208 33.3 72
Show 21188-2637 SEE 443 295 1.3 74
Show 21169-2836 DAW 154 88 1.1 77
Show 21181-2636 KPP 713 34 6.3 79
Show 21157-2803 BRT3099 298 4.4 82
Show 21162-2651 RST2175 329 1.9 85
Show 21198-2621 BU 271 AB 24 0.6 85
Show 21198-2621 BU 271 AC 67 141.7 85
Show 21198-2621 BU 271 AD 61 298.6 85
Show 21198-2621 BU 271 AE 32 180.4 85
Show 21212-2914 FIN 6 209 1.2 91
Show 21266-2839 TDT2970 278 0.6 91
Show 21154-2842 LDS4874 34 22.5 96
Show 21205-2920 LDS5921 91 313.7 97
Show 21136-2725 LDS5919 214 219.6 102
Show 21146-2849 LDS4872 276 62.7 110
Show 21140-2650 RST2174 11 0.6 110
Show 21181-2931 LDS 738 AB 182 27.4 115
Show 21181-2931 LDS 738 Aa,Ab 101 4.8 115
Show 21173-2601 UC 4428 18 69.6 115
Show 21179-2555 RST1086 162 0.4 117
Show 21121-2735 HJ 3012 320 25.8 121
Show 21131-2850 BRT3096 93 4.3 126
Show 21149-2921 HDS3022 18 0.4 128
Show 21125-2649 UC 4402 325 36.0 129
Show 21140-2914 RST2173 11 1.3 131
Show 21242-2534 BU 1035 214 0.8 137
Show 21316-2740 KPP 496 84 3.8 139
Show 21148-2555 HJ 3014 301 2.1 139
Show 21146-2935 B 2492 7.2 142
Show 21224-2523 TDT2932 203 0.6 143
Show 21105-2711 BRG 32 314 9.4 146
Show 21140-2940 MET 91 161 1.9 150
Show 21218-3014 UC 4457 240 34.7 151
Show 21113-2632 TDT2811 96 0.7 151
Show 21111-2858 HU 85 141 2.9 153
Show 21157-2526 RST3281 112 3.1 157
Show 21192-3018 RST2176 AB 246 0.8 157
Show 21192-3018 WIS 348 AC 239 171.8 157
Show 21335-2753 BVD 137 58 40.2 165
Show 21288-2955 RST2178 229 2.6 166

 
 
WDS 21212-2744 : COMPONENTS
 
 
  A
B pa=62.3°
sep=0.25"
 
 
21212-2744 A
 
 
Componente originario normalizzato AB Name HD 203144 Coord arcsec 2000 212109.23-274350.7 Mag 8.8
Spectral class A6V (white) PmRA 30.00 PmDE 11.0 SAO 190251
HIP 105418 Tycho2 6946-00855-1 HD 203144 CD CD-2817235
CP CP-28 7432
Tycho2
Tycho2 6946-00855-1 Pflag RAmdeg 320.28852431 DEmdeg -27.73071410
PmRA 26.4 PmDE 10.1 E RAmdeg 8 E DEmdeg 10
E pmRA 1.7 E pmDE 1.6 EpRAm 1991.19 EpDEm 1990.49
Num 7 Q RAmdeg 1.0 Q DEmdeg 1.3 Q pmRA 1.1
Q pmDE 1.3 BTmag 8.989 E BTmag 0.019 VTmag 8.682
E VTmag 0.016 Prox 999 TYC T HIP 105418
CCDM AB RAdeg 320.28845750 DEdeg -27.73073750 EpRA 1990 1.86
EpDE 1990 1.77 E RAdeg 7.5 E DEdeg 9.5 Posflg P
Corr -0.1
SAO
SAO 190251 DelFlag RA1950 PmRA1950 0.0026
DE1950 PmDE1950 0.026 Vmag 8 SpType A3
Double code Source 24 CatNum 14029 DM CD-2817235
DMcomp BDsup HD 203144 M HD 0
GC RA1950rad 5.57724838 DE1950rad -0.48771244 PmRA2000 0.0025
PmDE2000 0.023
Hipparcos
Catalog H HIP 105418 Proxy H RAhms 21 21 09.23
DEdms -27 43 50.7 Vmag 8.66 VarFlag R Vmag H
RAdeg 320.288 DEdeg -27.7307 AstroRef * Plx 8.06
CCDM 21212-2744 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AB
Theta 46 Rho 0.258 HD 203144 BD
CD CD-2817235 CP CP-28 7432 Dm number -2817235 VIred 0.18
SpType A6V R SpType Coord arcsec 2000 212109.23-274350.7
Hipparcos 2
HIP 105418 Sn 55 So 3 Nc 2
RArad 5.5900880034 DErad -0.4839927784 Plx 9.14 PmRA 30.24
PmDE 11.04 E RArad 1.08 E DErad 0.7 E Plx 1.31
E pmRA 1.28 E pmDE 0.56 Hpmag 8.7308 E Hpmag 0.0013
SHp 0.011 VA 0 BV 0.273 E BV 0.024
VI 0.31
CCDM
Ccdm 21212-2744 RComp Comp A Note1
Note2 Discov num DRAs -2.76 DDEs 9.4
R dRAs 82 Year Theta Rho
Obs 2 Vmag 8.8 Sp A6 PmNote *
PmRA 30 PmDE 11 Dm number -2817235 Cat1 CD
Name2 190251 Cat2 SAO HD 203144 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105418
 
 
21212-2744 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212109.25-274350.6 Mag 11.76 Calc delta mag 2.96
Calc coord yes
CCDM
Ccdm 21212-2744 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.74 DDEs 9.6
R dRAs 82 Year 1991 Theta 46 Rho 0.3
Obs 1 Vmag 11.8 Sp PmNote *
PmRA 30 PmDE 11 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 105418