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Current system
20455+5401
HLD 41 AB
HD 198055


Nearby doubles
19' : 20474+5407
ES 997

30' : 20448+5430
TOI1356

46' : 20421+5436
ES 994

48' : 20403+5413
OSO 129AB

52' : 20509+5342
TDT2576

53' : 20515+5403
ARG 41AB

54' : 20402+5427
A 1682

56' : 20518+5357
TDT2586

58' : 20443+5457
TDT2508

64' : 20414+5454
TDS1090

68' : 20506+5452
HJ 1587AB

69' : 20408+5307
ES 2698AB

69' : 20444+5253
MLR 643

70' : 20377+5351
A 1681AB

71' : 20396+5450
ES 993

74' : 20411+5504
TDS1089

75' : 20460+5247
ES 996

75' : 20376+5429
KPP2376

76' : 20388+5447
STI2550

79' : 20375+5437
STI2546

80' : 20369+5429
STI2545

81' : 20385+5453
STI2548

82' : 20368+5431
TDT2419

82' : 20385+5308
MLR 642

83' : 20433+5521
LLO 1

87' : 20427+5238
A 1683



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20455+5401 HLD 41 AB (HD 198055)

 
 
20h 45m 29.03s +54° 00' 59.9" P.A. 225.00 sep 3.7 mag 8.62,12.40 Sp K0
 
 
Coord 2000 20455+5401 Discov num HLD  41 Comp AB Coord arcsec 2000 20 45 29.03 +54 00 59.9
Date first 1881 Date last 2016 Obs 6
Pa first 238 Pa last 224.7 P.A. Now (θ) 224.7°
Sep first 3.4 Sep last 3.736 Sep. Now (ρ) 3.736"
Mag pri 8.62 Mag sec 12.40 delta mag (ΔM) 3.78 Spectral class K0 (yellow-orange)
Pri motion ra +025 Sec motion ra
Pri motion dec -027 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20455+5401 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 198055 32861 20 45 29 +54 00 60 HLD 41 AB 2016 6 225 3.7 8.62 12.40 3.78 <===
Show 32861 20 45 29 +54 00 60 HLD 41 AC 2015 12 262 9.6 8.62 11.10 2.48
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198055 Constellation Cygnus SAO 32861 Tycho2 3951-00784-1
Gaia DR2 2182537010709115904 HD 198055
 
 
WDS 20455+5401 HLD 41 AB (HD 198055) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Hld1874 Ma - Holden, E.S. .
Hld1874 Washington Observations, 1874
Hld1875 Ma - Holden, E.S. .
Hld1875 Washington Observations, 1875
Hld1875b Ma j Holden, E.S. & Newcomb, S. 1875AN.....86..321H
Hld1875b AN 86, 321, 1875
Hld1875c Ma j Holden, E.S. 1875AN.....86..321H
Hld1875c AN 86, 321, 1875
Hld1876 Ma - Holden, E.S. .
Hld1876 Washington Observations, 1876
Hld1876b Ma j Holden, E.S. 1876AN.....88..131H
Hld1876b AN 88, 131, 1876
Hld1877 Ma - Holden, E.S. 1877AN.....90..161H
Hld1877 AN 90, 161, 1877
Hld1877b Ma j Holden, E.S. 1877AN.....90..161H
Hld1877b AN 90, 161, 1877
Hld1878 Ma - Holden, E.S. .
Hld1878 Washington Observations, 1878
Hld1878b Ma j Holden, E.S. 1878AN.....93...65H
Hld1878b AN 93, 65, 1878 (data also in Hld1878)
Hld1879 Ma - Holden, E.S. .
Hld1879 Washington Observations, 1879
Hld1879b Ma j Holden, E.S. 1879AN.....95..329H
Hld1879b AN 95, 329, 1879 (data also in Hld1879)
Hld1880 Ma - Holden, E.S. .
Hld1880 Washington Observations, 1880
Hld1880b Ma j Holden, E.S. 1880AN.....97..319H
Hld1880b AN 97, 319, 1880 (data also in Hld1880)
Hld1881 Ma - Holden, E.S. .
Hld1881 Washington Observations, 1881
Hld1881b Ma j Holden, E.S. 1881MNRAS..41..416.
Hld1881b MNRAS 41, 416, 1881
Hld1882 Ma - Holden, E.S. 1882PWasO...1...77H
Hld1882 Pub. Washburn Obs. 1, 77, 1882 (see Pub. Lick Obs. 2, 1894) 1894PLicO...2.....B
Hld1884 Ma - Holden, E.S. 1884PWasO...2...97H
Hld1884 Pub. Washburn Obs. 2, 97, 1884
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20455+5401 HLD 41 AB 1937 5 232 3.5 8.62 12.40 K0 204529.03+540059.9
20455+5401 HLD 41 AB 2016 6 225 3.7 8.62 12.40 K0 204529.03+540059.9

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

 
 
WDS 20455+5401 HLD 41 AB (HD 198055) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20455+5401 HLD 41 AB (HD 198055) : MEASURES
 
 
No records found.

 
 
WDS 20455+5401 (HD 198055) : VIRTUAL EYEPIECE
 
 

20455+5401 HLD 41A mag 8.62 Sp K0 20455+5401 HLD 41B sep 3.1 P.A. 210.20 mag 12.4 20455+5401 HLD 41C sep 5.8 P.A. 256.90 mag 11.1 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 20455+5401 (HD 198055) : ALADIN DSS IMAGE @ 20h 45m 29.03s +54° 00' 59.9"
 
 
 
 
WDS 20455+5401 HLD 41 AB (HD 198055) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20455+5401 HLD 41AB distance=0' 20474+5407 ES 997 distance=19' 20448+5430 TOI1356 distance=30' 20421+5436 ES 994 distance=46' 20403+5413 OSO 129AB distance=48' 20403+5413 OSO 129AC distance=48' 20403+5413 OSO 129AD distance=48' 20403+5413 OSO 129AE distance=48' 20509+5342 TDT2576 distance=52' 20515+5403 ARG 41BC distance=53' 20515+5403 ARG 41AB distance=53' 20402+5427 A 1682 distance=54' 20518+5357 TDT2586 distance=56' 20424+5312 RAO 618CD distance=57' 20443+5457 TDT2508 distance=58' 20414+5454 TDS1090 distance=64' 20506+5452 HJ 1587AB distance=68' 20506+5452 DJU 5AC distance=68' 20408+5307 ES 2698AB distance=69' 20444+5253 MLR 643 distance=69' 20506+5452 DJU 5CD distance=69' 20377+5351 A 1681AB distance=70' 20377+5351 A 1681AC distance=70' 20396+5450 ES 993 distance=71' 20411+5504 TDS1089 distance=74' 20460+5247 ES 996 distance=75' 20376+5429 KPP2376 distance=75' 20388+5447 STI2550 distance=76' 20375+5437 STI2546 distance=79' 20369+5429 STI2545 distance=80' 20385+5453 STI2548 distance=81' 20368+5431 TDT2419 distance=82' 20385+5308 MLR 642 distance=82' 20433+5521 LLO 1 distance=83' 20427+5238 A 1683 distance=87' 20400+5515 HJ 1562AB distance=89' 20400+5515 VBS 31AC distance=89' 20358+5435 ES 991CD distance=91' 20558+5417 CBL 89 distance=92' 20358+5435 ES 991AB distance=92' 20358+5435 ES 991AC distance=92' 20419+5529 TDT2477 distance=94' 20354+5435 STI2543 distance=96' 20384+5248 TDT2442Aa,Ab distance=97' 20384+5248 SKF 348AB distance=97' 20479+5224 ES 93 distance=99' 20380+5522 STI2547 distance=104' 20435+5217 TVB 6 distance=106' 20397+5227 ES 992 distance=107' 20331+5420 STI2539 distance=111' 20405+5217 TDT2463 distance=114' 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 20455+5401 HLD 41 AB 225 3.7
Show 20455+5401 HLD 41 AC 262 9.6
Show 20474+5407 ES 997 274 3.3 19
Show 20448+5430 TOI1356 289 0.3 30
Show 20421+5436 ES 994 11 4.7 46
Show 20403+5413 OSO 129 AB 141 10.8 48
Show 20403+5413 OSO 129 AC 115 17.1 48
Show 20403+5413 OSO 129 AD 143 19.9 48
Show 20403+5413 OSO 129 AE 70 19.7 48
Show 20509+5342 TDT2576 57 0.7 52
Show 20515+5403 ARG 41 BC 250 11.3 53
Show 20515+5403 ARG 41 AB 194 11.2 53
Show 20402+5427 A 1682 49 1.4 54
Show 20518+5357 TDT2586 350 0.8 56
Show 20424+5312 RAO 618 CD 36 0.3 57
Show 20443+5457 TDT2508 82 0.8 58
Show 20414+5454 TDS1090 226 1.0 64
Show 20506+5452 HJ 1587 AB 259 10.4 68
Show 20506+5452 DJU 5 AC 66 77.9 68
Show 20408+5307 ES 2698 AB 28 8.3 69
Show 20444+5253 MLR 643 127 0.3 69
Show 20506+5452 DJU 5 CD 173 4.0 69
Show 20377+5351 A 1681 AB 209 4.4 70
Show 20377+5351 A 1681 AC 339 56.9 70
Show 20396+5450 ES 993 194 2.0 71
Show 20411+5504 TDS1089 252 1.4 74
Show 20460+5247 ES 996 264 8.8 75
Show 20376+5429 KPP2376 92 20.5 75
Show 20388+5447 STI2550 183 12.4 76
Show 20375+5437 STI2546 38 8.9 79
Show 20369+5429 STI2545 159 3.2 80
Show 20385+5453 STI2548 168 13.8 81
Show 20368+5431 TDT2419 80 0.8 82
Show 20385+5308 MLR 642 143 5.2 82
Show 20433+5521 LLO 1 20 0.1 83
Show 20427+5238 A 1683 209 0.1 87
Show 20400+5515 HJ 1562 AB 167 21.7 89
Show 20400+5515 VBS 31 AC 13 45.6 89
Show 20358+5435 ES 991 CD 120 2.6 91
Show 20558+5417 CBL 89 150 14.4 92
Show 20358+5435 ES 991 AB 297 15.9 92
Show 20358+5435 ES 991 AC 106 61.7 92
Show 20419+5529 TDT2477 266 1.2 94
Show 20354+5435 STI2543 208 3.2 96
Show 20384+5248 TDT2442 Aa,Ab 304 0.5 97
Show 20384+5248 SKF 348 AB 178 19.9 97
Show 20479+5224 ES 93 321 26.0 99
Show 20380+5522 STI2547 86 2.5 104
Show 20435+5217 TVB 6 318 11.7 106
Show 20397+5227 ES 992 166 7.3 107
Show 20331+5420 STI2539 255 10.1 111

 
 
WDS 20455+5401 : COMPONENTS
 
 
  A B
B pa=210.2°
sep=3.07"
 
C pa=256.9°
sep=5.77"
pa=288.3°
sep=4.29"
 
 
20455+5401 A
 
 
Name HD 198055 Coord arcsec 2000 204529.03+540059.9 Mag 8.62 Spectral class K0 (yellow-orange)
PmRA 25.00 PmDE -27.0 SAO 32861 Tycho2 3951-00784-1
HD 198055 DM BD+53 2485
Tycho2
Tycho2 3951-00784-1 Pflag RAmdeg 311.37099218 DEmdeg 54.01664634
PmRA 18.9 PmDE -0.3 E RAmdeg 8 E DEmdeg 8
E pmRA 1.5 E pmDE 1.5 EpRAm 1991.39 EpDEm 1991.36
Num 4 Q RAmdeg 0.5 Q DEmdeg 1.1 Q pmRA 0.5
Q pmDE 1.1 BTmag 9.765 E BTmag 0.021 VTmag 8.618
E VTmag 0.013 Prox 999 TYC T HIP
CCDM RAdeg 311.37091833 DEdeg 54.01664694 EpRA 1990 1.71
EpDE 1990 1.67 E RAdeg 7.8 E DEdeg 8.4 Posflg
Corr 0.0
SAO
SAO 32861 DelFlag RA1950 PmRA1950 0.0013
DE1950 PmDE1950 0 Vmag 8.4 SpType K0
Double code Source 37 CatNum 6750 DM BD+53 2485
DMcomp BDsup HD 198055 M HD 0
GC RA1950rad 5.4282718 DE1950rad 0.93956897 PmRA2000 0.0017
PmDE2000 -0.002
CCDM
Ccdm 20455+5401 RComp Comp A Note1
Note2 Discov num DRAs -1.14 DDEs 0.1
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.0 Sp K0 PmNote *
PmRA 12 PmDE 0 Dm number +53 2485 Cat1 BD
Name2 32861 Cat2 SAO HD 198055 M HD
ADS BDS A14272 M ADS BDS N IDS IDS 20426N5339A
HIC
 
 
20455+5401 B
 
 
Coord arcsec 2000 204528.85+540057.2 Mag 12.4 Calc delta mag 3.78 Calc coord yes
CCDM
Ccdm 20455+5401 RComp Comp B Note1
Note2 Discov num HLD 41 DRAs DDEs
R dRAs Year 1881 Theta 234 Rho 3.5
Obs 5 Vmag 11.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14272 M ADS BDS N IDS IDS 20426N5339B
HIC
 
 
20455+5401 C
 
 
Coord arcsec 2000 204528.39+540058.6 Mag 11.1 PmRA 2.00 PmDE 0.0
Calc delta mag 2.48 Calc coord yes
CCDM
Ccdm 20455+5401 RComp Comp C Note1
Note2 Discov num HLD 41 DRAs DDEs
R dRAs Year 1881 Theta 262 Rho 8.2
Obs 5 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14272 M ADS BDS N IDS IDS 20426N5339C
HIC