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Current system
20248-4719
HDS 2920
HD 193940


Nearby doubles
20' : 20261-4734
I 1086

20' : 20238-4736
FIN 278

24' : 20227-4711
TDT2219

44' : 20266-4758
I 1419AB

45' : 20205-4713
I 1415

45' : 20286-4655
RSS 548

46' : 20228-4800
UC 4162

58' : 20195-4702
TSN 10

69' : 20192-4757
RST1066

78' : 20264-4603
UC 4184

78' : 20321-4742
I 1087AB

80' : 20291-4826
I 1421

82' : 20174-4750
UC 4139

84' : 20275-4838
I 663

86' : 20333-4722
BRT1110

86' : 20296-4609
I 1422

87' : 20238-4845
NSC 29

104' : 20177-4834
BRT1106

108' : 20266-4905
BRT1109

109' : 20163-4826
LDS 707

110' : 20177-4557
HJ 5184

112' : 20343-4816
I 1423AB

114' : 20209-4533
SEE 415

114' : 20327-4558
UC 4211

114' : 20358-4747
I 665

120' : 20203-4529
KPP3105



Selections
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Binocular doubles
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.

20248-4719 HDS 2920 (HD 193940)

 
 
20h 24m 51.00s -47° 18' 40.0" P.A. 227.00 sep 0.2 mag 10.88,12.52 Sp F6V dist. 347.22 pc (1132.63 l.y.)
 
 
Coord 2000 20248-4719 Discov num HDS2920 Comp Coord arcsec 2000 20 24 51.00 -47 18 40.0
Date first 1991 Date last 2021 Obs 2
Pa first 265 Pa last 226.7 P.A. Now (θ) 226.7°
Sep first 0.2 Sep last 0.177 Sep. Now (ρ) 0.177"
Mag pri 10.88 Mag sec 12.52 delta mag (ΔM) 1.64 Spectral class F6V (yellow-white)
Pri motion ra +012 Sec motion ra
Pri motion dec -015 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193940 Constellation Telescopium HIP 100695 Tycho2 8409-02054-1
Gaia DR2 6669316240472603520 HD 193940 CD CD-4713385 CP CP-47 9501
Distance 347.22 Distance ly 1132.63
 
 
WDS 20248-4719 HDS 2920 (HD 193940) : NOTES
 
 
No records found.

 
 
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
20248-4719 HDS2920 1991 1 265 0.2 10.88 12.52 F6V 202451.00-471840.0
20248-4719 HDS2920 2021 2 227 0.2 10.88 12.52 F6V 202451.00-471840.0

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

 
 
WDS 20248-4719 HDS 2920 (HD 193940) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20248-4719 HDS 2920 (HD 193940) : MEASURES
 
 
No records found.

 
 
WDS 20248-4719 (HD 193940) : VIRTUAL EYEPIECE
 
 

20248-4719 HDS2920A mag 10.88 Sp F6V 20248-4719 HDS2920B sep 0.1 P.A. 215.70 mag 12.52 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20248-4719 (HD 193940) : ALADIN DSS IMAGE @ 20h 24m 51.00s -47° 18' 40.0"
 
 
 
 
WDS 20248-4719 HDS 2920 (HD 193940) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20248-4719 HDS2920 distance=1' 20261-4734 I 1086 distance=20' 20238-4736 FIN 278 distance=20' 20227-4711 TDT2219 distance=24' 20266-4758 I 1419AB distance=44' 20266-4758 I 1419BC distance=44' 20205-4713 I 1415 distance=45' 20286-4655 RSS 548 distance=45' 20228-4800 UC 4162 distance=46' 20195-4702 TSN 10 distance=58' 20192-4757 RST1066 distance=69' 20264-4603 UC 4184 distance=78' 20321-4742 I 1087AB distance=78' 20321-4742 TOK 628AC distance=78' 20291-4826 I 1421 distance=80' 20174-4750 UC 4139 distance=82' 20275-4838 I 663 distance=84' 20333-4722 BRT1110 distance=86' 20296-4609 I 1422 distance=86' 20238-4845 NSC 29 distance=87' 20177-4834 BRT1106 distance=104' 20266-4905 BRT1109 distance=108' 20163-4826 LDS 707 distance=109' 20177-4557 HJ 5184 distance=110' 20343-4816 I 1423AB distance=112' 20343-4816 TOI2244AC distance=112' 20209-4533 SEE 415 distance=114' 20327-4558 UC 4211 distance=114' 20358-4747 I 665 distance=114' 20203-4529 KPP3105 distance=120' 20166-4554 I 125 distance=120' 20251-4518 DON 985 distance=121' 20139-4812 TDT2107 distance=123' 20358-4815 BRT1112 distance=125' 20152-4603 HJ 5179 distance=125' 20183-4532 BRT1107 distance=126' 20376-4717 HJ 5209AB (Al nair) distance=130' 20376-4717 HJ 5209AC (Al nair) distance=130' 20350-4559 UC 4223 distance=132' 20369-4630 KPP1368 distance=133' 20119-4704 HJ 5172 distance=134' 20322-4521 RST5470AB distance=140' 20322-4521 HJ 5204AB,C distance=140' 20199-4503 NSN 480 distance=146' 20109-4806 UC 4114 distance=149' 20107-4644 I 123 distance=150' 20380-4828 WSP 88 distance=150' 20191-4937 RST1065 distance=151' 20385-4821 BRT1113 distance=151' 20135-4539 UC 4123 distance=154' 20331-4932 UC 4215 distance=157' 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 20248-4719 HDS2920 227 0.2 1
Show 20261-4734 I 1086 23 2.2 20
Show 20238-4736 FIN 278 202 3.9 20
Show 20227-4711 TDT2219 283 0.5 24
Show 20266-4758 I 1419 AB 129 55.1 44
Show 20266-4758 I 1419 BC 342 3.4 44
Show 20205-4713 I 1415 35 1.8 45
Show 20286-4655 RSS 548 174 15.4 45
Show 20228-4800 UC 4162 127 41.6 46
Show 20195-4702 TSN 10 87 68.3 58
Show 20192-4757 RST1066 184 0.5 69
Show 20264-4603 UC 4184 90 71.7 78
Show 20321-4742 I 1087 AB 95 3.5 78
Show 20321-4742 TOK 628 AC 120 999.9 78
Show 20291-4826 I 1421 341 0.4 80
Show 20174-4750 UC 4139 4 30.2 82
Show 20275-4838 I 663 71 0.8 84
Show 20333-4722 BRT1110 239 4.1 86
Show 20296-4609 I 1422 17 0.1 86
Show 20238-4845 NSC 29 225 11.4 87
Show 20177-4834 BRT1106 73 4.5 104
Show 20266-4905 BRT1109 108 5.4 108
Show 20163-4826 LDS 707 25 18.3 109
Show 20177-4557 HJ 5184 285 12.3 110
Show 20343-4816 I 1423 AB 50 1.5 112
Show 20343-4816 TOI2244 AC 307 20.3 112
Show 20209-4533 SEE 415 97 11.0 114
Show 20327-4558 UC 4211 347 28.6 114
Show 20358-4747 I 665 304 2.9 114
Show 20203-4529 KPP3105 128 2.3 120
Show 20166-4554 I 125 45 1.5 120
Show 20251-4518 DON 985 341 1.8 121
Show 20139-4812 TDT2107 242 0.6 123
Show 20358-4815 BRT1112 145 4.8 125
Show 20152-4603 HJ 5179 136 5.8 125
Show 20183-4532 BRT1107 317 5.2 126
Show Al nair 20376-4717 HJ 5209 AB 206 69.2 130
Show Al nair 20376-4717 HJ 5209 AC 336 57.5 130
Show 20350-4559 UC 4223 99 51.7 132
Show 20369-4630 KPP1368 296 10.3 133
Show 20119-4704 HJ 5172 9 36.7 134
Show 20322-4521 RST5470 AB 125 0.2 140
Show 20322-4521 HJ 5204 AB,C 35 6.2 140
Show 20199-4503 NSN 480 216 11.3 146
Show 20109-4806 UC 4114 8 13.9 149
Show 20107-4644 I 123 210 6.3 150
Show 20380-4828 WSP 88 147 16.3 150
Show 20191-4937 RST1065 69 1.3 151
Show 20385-4821 BRT1113 211 4.6 151
Show 20135-4539 UC 4123 130 22.9 154
Show 20331-4932 UC 4215 113 41.9 157

 
 
WDS 20248-4719 : COMPONENTS
 
 
  A
B pa=215.7°
sep=0.15"
 
 
20248-4719 A
 
 
Componente originario normalizzato AB Name HD 193940 Coord arcsec 2000 202451.00-471840.0 Mag 10.88
Spectral class F6V (yellow-white) PmRA 12.00 PmDE -15.0 HIP 100695
Tycho2 8409-02054-1 HD 193940 CD CD-4713385 CP CP-47 9501
Tycho2
Tycho2 8409-02054-1 Pflag RAmdeg 306.21253138 DEmdeg -47.31114411
PmRA 7.8 PmDE -15.4 E RAmdeg 32 E DEmdeg 40
E pmRA 2.1 E pmDE 2.0 EpRAm 1988.92 EpDEm 1986.84
Num 3 Q RAmdeg 0.3 Q DEmdeg 0.6 Q pmRA 0.3
Q pmDE 0.6 BTmag 11.176 E BTmag 0.060 VTmag 10.694
E VTmag 0.060 Prox 326 TYC T HIP 100695
CCDM AC RAdeg 306.21250444 DEdeg -47.31110778 EpRA 1990 1.70
EpDE 1990 1.52 E RAdeg 32.7 E DEdeg 41.3 Posflg
Corr -0.1
Hipparcos
Catalog H HIP 100695 Proxy H RAhms 20 24 51.00
DEdms -47 18 40.0 Vmag 10.53 VarFlag R Vmag G
RAdeg 306.212 DEdeg -47.3111 AstroRef * Plx 3.34
CCDM 20248-4719 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual D M HIP AC
Theta 265 Rho 0.186 HD 193940 BD
CD CD-4713385 CP CP-47 9501 Dm number -4713385 VIred 0.6
SpType F6V R SpType Coord arcsec 2000 202451.00-471840.0
Hipparcos 2
HIP 100695 Sn 55 So 3 Nc 2
RArad 5.3444163667 DErad -0.8257345881 Plx 2.88 PmRA 11.82
PmDE -15.89 E RArad 2.21 E DErad 1.32 E Plx 2.34
E pmRA 3.1 E pmDE 1.96 Hpmag 10.6656 E Hpmag 0.0052
SHp 0.036 VA 0 BV 0.529 E BV 0.02
VI 0.6
CCDM
Ccdm 20248-4719 RComp Comp A Note1
Note2 Discov num DRAs 3.01 DDEs 19.9
R dRAs 82 Year Theta Rho
Obs 3 Vmag 10.9 Sp F6 PmNote
PmRA 12 PmDE -15 Dm number -4713385 Cat1 CD
Name2 Cat2 HD 193940 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100695
 
 
20248-4719 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202450.99-471840.1 Mag 12.52 Calc delta mag 1.64
Calc coord yes
CCDM
Ccdm 20248-4719 RComp Comp B Note1
Note2 Discov num JKS 24 DRAs 6.17 DDEs 20.9
R dRAs 66 Year 1982 Theta 089 Rho 32.9
Obs 1 Vmag 11.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC