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Doubles in session


Current system
20202+1128
HDS 2906
HD 193490


Nearby doubles
20' : 20201+1109
A 1206

24' : 20189+1113
HJ 1498

31' : 20221+1117
BPM2131

36' : 20198+1203
J 837

38' : 20186+1100
STF2662

48' : 20228+1156
BPM2135

52' : 20203+1036
TOR 23

54' : 20166+1138
BPM2084

56' : 20195+1223
BPM2111

57' : 20210+1033
TOR 24

59' : 20236+1059
GWP2943

59' : 20203+1227
DAM 212

60' : 20239+1107
BPM2142

60' : 20205+1226
HJ 1502

62' : 20210+1028
J 838

62' : 20242+1113
ENG 74AB

68' : 20176+1224
BPM2090

69' : 20249+1124
J 840

74' : 20250+1108
BPM2146

74' : 20153+1145
BPM2078

75' : 20239+1217
GRV 337

76' : 20151+1143
J 604

78' : 20244+1213
A 1209AB

82' : 20207+1249
HU 1196AB

84' : 20189+1006
GRV 328

85' : 20146+1116
J 1296



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

20202+1128 HDS 2906 (HD 193490)

 
 
20h 20m 09.94s +11° 28' 09.9" P.A. 319.00 sep 0.6 mag 6.81,10.73 Sp K2 dist. 287.36 pc (937.37 l.y.)
 
 
Coord 2000 20202+1128 Discov num HDS2906 Comp Coord arcsec 2000 20 20 09.94 +11 28 09.9
Date first 1991 Date last 2018 Obs 3
Pa first 317 Pa last 319.2 P.A. Now (θ) 319.2°
Sep first 0.5 Sep last 0.583 Sep. Now (ρ) 0.583"
Mag pri 6.81 Mag sec 10.73 delta mag (ΔM) 3.92 Spectral class K2 (yellow-orange)
Pri motion ra +002 Sec motion ra
Pri motion dec -013 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193490 Constellation Delphinus SAO 105980 HIP 100262
Tycho2 1082-02115-1 Gaia DR2 1802089151224612736 HD 193490 GC 28279
BD BD+11 4225 Distance 287.36 Distance ly 937.37
 
 
WDS 20202+1128 HDS 2906 (HD 193490) : 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
20202+1128 HDS2906 1991 1 317 0.5 6.81 10.73 K2 D 202009.94+112809.9
20202+1128 HDS2906 2018 2 319 0.6 6.81 10.73 K2 202009.94+112809.9

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

 
 
WDS 20202+1128 HDS 2906 (HD 193490) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20202+1128 HDS 2906 (HD 193490) : MEASURES
 
 
No records found.

 
 
WDS 20202+1128 (HD 193490) : VIRTUAL EYEPIECE
 
 

20202+1128 HDS2906A mag 6.81 Sp K2 20202+1128 HDS2906B sep 0.6 P.A. 319.80 mag 10.73 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 20202+1128 (HD 193490) : ALADIN DSS IMAGE @ 20h 20m 09.94s +11° 28' 09.9"
 
 
 
 
WDS 20202+1128 HDS 2906 (HD 193490) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20202+1128 HDS2906 distance=0' 20201+1109 A 1206 distance=20' 20189+1113 HJ 1498 distance=24' 20221+1117 BPM2131 distance=31' 20198+1203 J 837 distance=36' 20186+1100 STF2662 distance=38' 20228+1156 BPM2135 distance=48' 20203+1036 TOR 23 distance=52' 20166+1138 BPM2084 distance=54' 20195+1223 BPM2111 distance=56' 20210+1033 TOR 24 distance=57' 20236+1059 GWP2943 distance=59' 20203+1227 DAM 212 distance=59' 20239+1107 BPM2142 distance=60' 20205+1226 HJ 1502 distance=60' 20210+1028 J 838 distance=62' 20242+1113 ENG 74AB distance=62' 20242+1113 ENG 74AC distance=62' 20242+1113 ENG 74BC distance=63' 20176+1224 BPM2090 distance=68' 20249+1124 J 840 distance=69' 20250+1108 BPM2146 distance=74' 20153+1145 BPM2078 distance=74' 20239+1217 GRV 337 distance=75' 20151+1143 J 604 distance=76' 20244+1213 WOR 33Aa,Ab distance=78' 20244+1213 A 1209AB distance=78' 20207+1249 HU 1196AB distance=82' 20207+1249 HU 1196AC distance=82' 20189+1006 GRV 328 distance=84' 20146+1116 J 1296 distance=85' 20238+1235 BRT1341 distance=85' 20206+1254 BPM2121 distance=87' 20233+1245 GWP2942 distance=90' 20260+1102 BPM2156AB distance=91' 20260+1102 BPM2157BC distance=91' 20148+1214 BPM2073 distance=92' 20196+1300 STF2664 distance=93' 20263+1109 UC 4181 distance=93' 20221+0959 TDT2210 distance=94' 20142+1202 HJ 1494 distance=95' 20224+0959 TDS1065 distance=95' 20264+1103 BPM2159AB distance=96' 20264+1103 BPM2160AC distance=96' 20260+1212 J 1704 distance=97' 20266+1148 BPM2161 distance=98' 20165+1252 KPP1246 distance=100' 20270+1116 HJ 268 distance=101' 20250+1016 HJ 1509 distance=101' 20232+0957 TDT2229 distance=102' 20207+0946 GRV 332 distance=102' 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 20202+1128 HDS2906 319 0.6
Show 20201+1109 A 1206 269 3.2 20
Show 20189+1113 HJ 1498 218 17.4 24
Show 20221+1117 BPM2131 352 23.0 31
Show 20198+1203 J 837 296 2.0 36
Show 20186+1100 STF2662 42 2.0 38
Show 20228+1156 BPM2135 218 90.0 48
Show 20203+1036 TOR 23 236 8.2 52
Show 20166+1138 BPM2084 198 88.2 54
Show 20195+1223 BPM2111 249 101.1 56
Show 20210+1033 TOR 24 229 1.7 57
Show 20236+1059 GWP2943 132 13.2 59
Show 20203+1227 DAM 212 154 8.9 59
Show 20239+1107 BPM2142 53 34.9 60
Show 20205+1226 HJ 1502 320 12.1 60
Show 20210+1028 J 838 119 6.9 62
Show 20242+1113 ENG 74 AB 73 67.8 62
Show 20242+1113 ENG 74 AC 97 160.4 62
Show 20242+1113 ENG 74 BC 112 102.0 63
Show 20176+1224 BPM2090 282 69.4 68
Show 20249+1124 J 840 52 3.7 69
Show 20250+1108 BPM2146 49 87.4 74
Show 20153+1145 BPM2078 109 18.7 74
Show 20239+1217 GRV 337 170 62.5 75
Show 20151+1143 J 604 235 0.6 76
Show 20244+1213 WOR 33 Aa,Ab 131 0.6 78
Show 20244+1213 A 1209 AB 324 1.9 78
Show 20207+1249 HU 1196 AB 322 0.4 82
Show 20207+1249 HU 1196 AC 304 3.3 82
Show 20189+1006 GRV 328 59 23.2 84
Show 20146+1116 J 1296 237 3.3 85
Show 20238+1235 BRT1341 168 3.6 85
Show 20206+1254 BPM2121 253 95.1 87
Show 20233+1245 GWP2942 269 9.1 90
Show 20260+1102 BPM2156 AB 73 53.8 91
Show 20260+1102 BPM2157 BC 109 117.7 91
Show 20148+1214 BPM2073 245 106.1 92
Show 20196+1300 STF2664 322 27.8 93
Show 20263+1109 UC 4181 356 86.7 93
Show 20221+0959 TDT2210 69 0.5 94
Show 20142+1202 HJ 1494 1 10.1 95
Show 20224+0959 TDS1065 22 1.3 95
Show 20264+1103 BPM2159 AB 65 36.6 96
Show 20264+1103 BPM2160 AC 152 67.7 96
Show 20260+1212 J 1704 202 6.2 97
Show 20266+1148 BPM2161 343 104.2 98
Show 20165+1252 KPP1246 246 9.6 100
Show 20270+1116 HJ 268 248 20.5 101
Show 20250+1016 HJ 1509 180 19.2 101
Show 20232+0957 TDT2229 227 1.2 102
Show 20207+0946 GRV 332 282 23.1 102

 
 
WDS 20202+1128 : COMPONENTS
 
 
  A
B pa=319.8°
sep=0.58"
 
 
20202+1128 A
 
 
Componente originario normalizzato AB Name HD 193490 Coord arcsec 2000 202009.94+112809.9 Mag 6.81
Spectral class K2 (yellow-orange) PmRA 2.00 PmDE -13.0 SAO 105980
HIP 100262 Tycho2 1082-02115-1 HD 193490 GC 28279
BD BD+11 4225
Tycho2
Tycho2 1082-02115-1 Pflag RAmdeg 305.04141974 DEmdeg 11.46937740
PmRA 0.6 PmDE -14.2 E RAmdeg 4 E DEmdeg 4
E pmRA 1.1 E pmDE 1.1 EpRAm 1991.56 EpDEm 1991.36
Num 14 Q RAmdeg 0.5 Q DEmdeg 1.0 Q pmRA 0.5
Q pmDE 1.1 BTmag 8.456 E BTmag 0.016 VTmag 6.781
E VTmag 0.010 Prox 999 TYC T HIP 100262
CCDM AB RAdeg 305.04141833 DEdeg 11.46941028 EpRA 1990 1.82
EpDE 1990 1.63 E RAdeg 4.2 E DEdeg 4.2 Posflg P
Corr -0.2
SAO
SAO 105980 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.019 Vmag 6.8 SpType K2
Double code Source 70 CatNum 28279 DM BD+11 4225
DMcomp BDsup HD 193490 M HD 0
GC 28279 RA1950rad 5.31359395 DE1950rad 0.19740999 PmRA2000 -0.0005
PmDE2000 -0.022
Hipparcos
Catalog H HIP 100262 Proxy H RAhms 20 20 09.94
DEdms +11 28 09.9 Vmag 6.63 VarFlag R Vmag H
RAdeg 305.041 DEdeg 11.4694 AstroRef A Plx 3.7
CCDM 20202+1128 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source Qual B M HIP AB
Theta 317 Rho 0.497 HD 193490 BD BD+11 4225
CD CP Dm number +11 4225 VIred 1.37
SpType K2 R SpType Coord arcsec 2000 202009.94+112809.9
Hipparcos 2
HIP 100262 Sn 15 So 3 Nc 2
RArad 5.3239771586 DErad 0.2001789569 Plx 3.48 PmRA 0.13
PmDE -14.12 E RArad 0.63 E DErad 0.59 E Plx 0.86
E pmRA 0.7 E pmDE 0.83 Hpmag 6.7762 E Hpmag 0.0009
SHp 0.008 VA 0 BV 1.389 E BV 0.009
VI 1.36
CCDM
Ccdm 20202+1128 RComp Comp A Note1
Note2 Discov num DRAs -2.05 DDEs 9.8
R dRAs 82 Year Theta Rho
Obs 2 Vmag 6.8 Sp K2 PmNote *
PmRA 2 PmDE -13 Dm number +11 4225 Cat1 BD
Name2 +11 2467 Cat2 AGK2/3 HD 193490 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100262
 
 
20202+1128 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202009.91+112810.3 Mag 10.73 Calc delta mag 3.92
Calc coord yes
CCDM
Ccdm 20202+1128 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.09 DDEs 10.1
R dRAs 82 Year 1991 Theta 317 Rho 0.5
Obs 1 Vmag 10.7 Sp PmNote *
PmRA 2 PmDE -13 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 100262