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Doubles in session


Current system
20397+8030
HDS 2946
HD 198327


Nearby doubles
13' : 20415+8042
LOC 466

19' : 20400+8048
LDS1937

25' : 20477+8016
SKF1250

29' : 20372+8001
LDS1936

38' : 20454+8105
LDS1938

40' : 20496+8000
TDT2564

44' : 20295+8105
STT 593AB

44' : 20554+8011
LDS1943

45' : 20565+8049
UC 4338

50' : 20472+8117
TDT2537

51' : 20465+8118
KPP4213

62' : 20282+8125
BUP 211AB

68' : 20530+7932
TDT2601

76' : 20423+7915
SKF1247

85' : 20460+7907
MLR 237AB

89' : 20255+8152
LOC 452

93' : 20520+8158
TDT2588

94' : 20499+7900
LOC 464

97' : 20449+8206
LOC 467

106' : 20546+8210
LOC 468

116' : 20573+8219
LOC 470

117' : 20406+8227
TDT2464

127' : 20277+7828
KPP4200

134' : 20291+7819
KPP1433

135' : 20491+7818
LOC 463

138' : 20592+7823
CON 38



Selections
Full WDS
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.

20397+8030 HDS 2946 (HD 198327)

 
 
20h 39m 43.28s +80° 29' 59.9" P.A. 143.00 sep 0.2 mag 9.22,9.61 Sp M... dist. 740.74 pc (2416.29 l.y.)
 
 
Coord 2000 20397+8030 Discov num HDS2946 Comp Coord arcsec 2000 20 39 43.28 +80 29 59.9
Date first 1991 Date last 1991 Obs 1
Pa first 143 Pa last 143 P.A. Now (θ) 143°
Sep first 0.2 Sep last 0.171 Sep. Now (ρ) 0.171"
Mag pri 9.22 Mag sec 9.61 delta mag (ΔM) 0.39 Spectral class M... (red)
Pri motion ra -005 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198327 Constellation Draco SAO 3443 HIP 101960
Tycho2 4593-00263-1 Gaia DR2 2298011565846967680 HD 198327 BD BD+79 683
Distance 740.74 Distance ly 2416.29
 
 
WDS 20397+8030 HDS 2946 (HD 198327) : 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
20397+8030 HDS2946 1991 1 143 0.2 9.22 9.61 M... 203943.28+802959.9

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

 
 
WDS 20397+8030 HDS 2946 (HD 198327) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20397+8030 HDS 2946 (HD 198327) : MEASURES
 
 
No records found.

 
 
WDS 20397+8030 (HD 198327) : VIRTUAL EYEPIECE
 
 

20397+8030 HDS2946A mag 9.22 Sp M... 20397+8030 HDS2946B sep 0.1 P.A. 172.90 mag 9.61 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 20397+8030 (HD 198327) : ALADIN DSS IMAGE @ 20h 39m 43.28s +80° 29' 59.9"
 
 
 
 
WDS 20397+8030 HDS 2946 (HD 198327) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20397+8030 HDS2946 distance=0' 20415+8042 LOC 466 distance=13' 20400+8048 LDS1937 distance=19' 20477+8016 SKF1250 distance=25' 20372+8001 LDS1936 distance=29' 20454+8105 LDS1938 distance=38' 20496+8000 TDT2564 distance=40' 20295+8105 STT 593AB distance=44' 20554+8011 LDS1943 distance=44' 20295+8105 BUP 212BC distance=45' 20565+8049 UC 4338 distance=45' 20472+8117 TDT2537 distance=50' 20465+8118 KPP4213 distance=51' 20282+8125 BUP 211AB distance=62' 20282+8125 STH 7AC distance=62' 20530+7932 TDT2601 distance=68' 20423+7915 SKF1247 distance=76' 20460+7907 MLR 237AB distance=85' 20255+8152 LOC 452 distance=89' 20520+8158 TDT2588 distance=93' 20499+7900 LOC 464 distance=94' 20449+8206 LOC 467 distance=97' 20546+8210 LOC 468 distance=106' 20573+8219 LOC 470 distance=116' 20406+8227 TDT2464 distance=117' 20277+7828 KPP4200 distance=127' 20291+7819 KPP1433 distance=134' 20491+7818 LOC 463 distance=135' 20592+7823 CON 38 distance=138' 20421+8251 LOC 469 distance=141' 20345+8254 MLR 235 distance=145' 20277+8257 MLR 234 distance=150' 20323+7753 LOC 450 distance=159' 20200+8306 LOC 454 distance=162' 20228+8334 TDT2220 distance=188' 20319+8350 LOC 456 distance=201' 20512+7656 SLW1227 distance=217' 20546+7653 LOC 460 distance=222' 20557+7648 UC 4331 distance=227' 20248+7641 TDT2248 distance=234' 20304+7634 TDT2327 distance=239' 20354+7619 OSW 17 distance=251' 20562+7611 UC 4336 distance=265' 20201+7605 A 869 distance=271' 20487+8506 LOC 471AB distance=277' 20550+7547 LDS1942 distance=287' 20374+7536 HEI 7 distance=295' 20214+8523 LOC 457 distance=295' 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 20397+8030 HDS2946 143 0.2
Show 20415+8042 LOC 466 26 1.2 13
Show 20400+8048 LDS1937 312 6.7 19
Show 20477+8016 SKF1250 333 4.3 25
Show 20372+8001 LDS1936 313 40.8 29
Show 20454+8105 LDS1938 321 18.2 38
Show 20496+8000 TDT2564 256 1.1 40
Show 20295+8105 STT 593 AB 36 214.4 44
Show 20554+8011 LDS1943 314 15.8 44
Show 20295+8105 BUP 212 BC 293 100.4 45
Show 20565+8049 UC 4338 91 12.9 45
Show 20472+8117 TDT2537 209 1.0 50
Show 20465+8118 KPP4213 148 5.2 51
Show 20282+8125 BUP 211 AB 11 109.5 62
Show 20282+8125 STH 7 AC 282 196.6 62
Show 20530+7932 TDT2601 350 2.5 68
Show 20423+7915 SKF1247 338 17.3 76
Show 20460+7907 MLR 237 AB 118 3.1 85
Show 20255+8152 LOC 452 150 1.1 89
Show 20520+8158 TDT2588 293 0.7 93
Show 20499+7900 LOC 464 336 2.1 94
Show 20449+8206 LOC 467 231 22.7 97
Show 20546+8210 LOC 468 320 5.5 106
Show 20573+8219 LOC 470 263 3.1 116
Show 20406+8227 TDT2464 181 1.3 117
Show 20277+7828 KPP4200 166 1.7 127
Show 20291+7819 KPP1433 234 10.8 134
Show 20491+7818 LOC 463 193 1.2 135
Show 20592+7823 CON 38 237 2.5 138
Show 20421+8251 LOC 469 123 1.6 141
Show 20345+8254 MLR 235 165 0.8 145
Show 20277+8257 MLR 234 94 0.6 150
Show 20323+7753 LOC 450 293 3.2 159
Show 20200+8306 LOC 454 145 7.8 162
Show 20228+8334 TDT2220 59 0.4 188
Show 20319+8350 LOC 456 266 1.1 201
Show 20512+7656 SLW1227 136 10.1 217
Show 20546+7653 LOC 460 81 6.6 222
Show 20557+7648 UC 4331 35 15.6 227
Show 20248+7641 TDT2248 243 0.4 234
Show 20304+7634 TDT2327 320 0.6 239
Show 20354+7619 OSW 17 198 65.6 251
Show 20562+7611 UC 4336 300 22.3 265
Show 20201+7605 A 869 269 2.1 271
Show 20487+8506 LOC 471 AB 331 1.5 277
Show 20550+7547 LDS1942 346 2.7 287
Show 20374+7536 HEI 7 231 0.7 295
Show 20214+8523 LOC 457 271 1.9 295

 
 
WDS 20397+8030 : COMPONENTS
 
 
  A
B pa=172.9°
sep=0.14"
 
 
20397+8030 A
 
 
Componente originario normalizzato AB Name HD 198327 Coord arcsec 2000 203943.28+802959.9 Mag 9.22
Spectral class M... (red) PmRA -5.00 PmDE -3.0 SAO 3443
HIP 101960 Tycho2 4593-00263-1 HD 198327 BD BD+79 683
Tycho2
Tycho2 4593-00263-1 Pflag RAmdeg 309.93035470 DEmdeg 80.49996841
PmRA -3.5 PmDE -3.5 E RAmdeg 11 E DEmdeg 12
E pmRA 1.4 E pmDE 1.4 EpRAm 1990.59 EpDEm 1990.42
Num 8 Q RAmdeg 0.5 Q DEmdeg 1.2 Q pmRA 0.4
Q pmDE 1.3 BTmag 10.945 E BTmag 0.044 VTmag 9.003
E VTmag 0.015 Prox 999 TYC T HIP 101960
CCDM AB RAdeg 309.93040472 DEdeg 80.49997861 EpRA 1990 1.71
EpDE 1990 1.68 E RAdeg 10.7 E DEdeg 11.6 Posflg P
Corr 0.0
SAO
SAO 3443 DelFlag RA1950 PmRA1950 -0.0095
DE1950 PmDE1950 -0.024 Vmag 9 SpType Mb
Double code Source 1 CatNum 435 DM BD+79 683
DMcomp BDsup HD 198327 M HD 0
GC RA1950rad 5.42006326 DE1950rad 1.40184981 PmRA2000 -0.0088
PmDE2000 -0.028
Hipparcos
Catalog H HIP 101960 Proxy H RAhms 20 39 43.28
DEdms +80 29 59.9 Vmag 8.73 VarFlag 2 R Vmag H
RAdeg 309.93 DEdeg 80.5 AstroRef * Plx 1.56
CCDM 20397+8030 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual B M HIP AB
Theta 143 Rho 0.171 HD 198327 BD BD+79 683
CD CP Dm number +79 683 VIred 2.14
SpType M... R SpType Coord arcsec 2000 203943.28+802959.9
Hipparcos 2
HIP 101960 Sn 55 So 3 Nc 2
RArad 5.4093049122 DErad 1.4049896504 Plx 1.35 PmRA -4.93
PmDE -2.95 E RArad 0.62 E DErad 0.53 E Plx 0.64
E pmRA 0.74 E pmDE 0.59 Hpmag 8.6415 E Hpmag 0.0144
SHp 0.106 VA 2 BV 1.666 E BV 0.043
VI 3.02
CCDM
Ccdm 20397+8030 RComp Comp A Note1
Note2 Discov num DRAs 1.25 DDEs -0.1
R dRAs 82 Year Theta Rho
Obs 2 Vmag 9.2 Sp M. PmNote *
PmRA -5 PmDE -3 Dm number +79 683 Cat1 BD
Name2 +80 435 Cat2 AGK2/3 HD 198327 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 101960
 
 
20397+8030 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203943.29+802959.8 Mag 9.61 Calc delta mag 0.39
Calc coord yes
CCDM
Ccdm 20397+8030 RComp Comp B Note1
Note2 Discov num HDS DRAs 1.29 DDEs -0.2
R dRAs 82 Year 1991 Theta 143 Rho 0.2
Obs 1 Vmag 9.6 Sp PmNote *
PmRA -5 PmDE -3 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 101960