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Doubles in session


Current system
21306+4213
STT 441 AB
HD 204919


Nearby doubles
16' : 21309+4228
TDT3004AB

16' : 21304+4229
TDT3003

20' : 21291+4202
TDT2987

26' : 21322+4155
TDT3016

29' : 21302+4143
COU1973

34' : 21336+4209
KPP4237

43' : 21340+4156
J 3142

44' : 21330+4139
TDT3024

45' : 21268+4228
A 619

51' : 21261+4203
COU2307

53' : 21330+4127
TDT3025

56' : 21296+4307
COU2232

59' : 21260+4144
BLL 54

59' : 21333+4306
ES 1455

60' : 21280+4305
HO 160

61' : 21265+4254
TDT2967

62' : 21361+4206
TDT3050

66' : 21360+4237
ES 1457AB

66' : 21256+4138
A 618

69' : 21281+4110
COU2231

71' : 21354+4128
GRV 480

72' : 21355+4300
ES 1456

73' : 21273+4315
HJ 1646

74' : 21362+4253
HO 463

75' : 21286+4102
UC 262

80' : 21260+4112
HDS3052



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

21306+4213 STT 441 AB (HD 204919)

 
 
21h 30m 35.00s +42° 12' 40.4" P.A. 328.00 sep 6.1 mag 8.27,11.26 Sp A7V dist. 173.91 pc (567.29 l.y.)
 
 
Coord 2000 21306+4213 Discov num STT 441 Comp AB Coord arcsec 2000 21 30 35.00 +42 12 40.4
Date first 1847 Date last 2015 Obs 21
Pa first 322 Pa last 328.2 P.A. Now (θ) 328.2°
Sep first 7.0 Sep last 6.1 Sep. Now (ρ) 6.1"
Mag pri 8.27 Mag sec 11.26 delta mag (ΔM) 2.99 Spectral class A7V (white)
Pri motion ra -001 Sec motion ra +002
Pri motion dec -009 Sec motion dec -005
Notes
rPM=0.552
Nature of this double is uncertain.
 
 
21306+4213 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 204919 50950 21 30 35 +42 12 40 STT 441 AB 2015 21 328 6.1 8.27 11.26 2.99 <===
Show 50950 21 30 35 +42 12 40 FYM 336 AC 2015 7 123 9.5 8.27 14.90 6.63
Show 50950 21 30 35 +42 12 40 FYM 336 AD 2015 7 280 19.4 8.27 14.70 6.43
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 204919 Constellation Cygnus SAO 50950 HIP 106191
Tycho2 3191-01712-1 Gaia DR2 1967214632123902976 HD 204919 BD BD+41 4169
Distance 173.91 Distance ly 567.29
 
 
WDS 21306+4213 STT 441 AB (HD 204919) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
FYM Fay, M.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21306+4213 STT 441 AB 2015 18 328 6.1 8.27 11.26 A7V +41 4169 213035.00+421240.4

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

 
 
WDS 21306+4213 STT 441 AB (HD 204919) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21306+4213 STT 441 AB (HD 204919) : MEASURES
 
 
No records found.

 
 
WDS 21306+4213 (HD 204919) : VIRTUAL EYEPIECE
 
 

21306+4213 STT 441A mag 8.27 Sp A7V 21306+4213 STT 441B sep 6.1 P.A. 328.20 mag 11.26 21306+4213 FYM 336C sep 9.5 P.A. 122.50 mag 14.9 21306+4213 FYM 336D sep 19.4 P.A. 280.00 mag 14.7 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 21306+4213 (HD 204919) : ALADIN DSS IMAGE @ 21h 30m 35.00s +42° 12' 40.4"
 
 
 
 
WDS 21306+4213 STT 441 AB (HD 204919) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21306+4213 STT 441AB distance=0' 21309+4228 TDT3004AB distance=16' 21304+4229 TDT3003 distance=16' 21291+4202 TDT2987 distance=20' 21322+4155 TDT3016 distance=26' 21302+4143 COU1973 distance=29' 21336+4209 KPP4237 distance=34' 21340+4156 J 3142 distance=43' 21330+4139 TDT3024 distance=44' 21268+4228 A 619 distance=45' 21261+4203 COU2307 distance=51' 21330+4127 TDT3025 distance=53' 21296+4307 COU2232 distance=56' 21260+4144 BLL 54 distance=59' 21333+4306 ES 1455 distance=59' 21280+4305 HO 160 distance=60' 21265+4254 TDT2967 distance=61' 21361+4206 TDT3050 distance=62' 21360+4237 ES 1457AB distance=66' 21256+4138 A 618 distance=66' 21281+4110 COU2231 distance=69' 21354+4128 GRV 480 distance=71' 21355+4300 ES 1456 distance=72' 21273+4315 HJ 1646 distance=73' 21362+4253 HO 463 distance=74' 21286+4102 UC 262 distance=75' 21260+4112 HDS3052 distance=80' 21373+4145 GRV 486 distance=80' 21360+4307 TDT3049 distance=81' 21250+4122 ES 1692 distance=81' 21346+4322 AG 418 distance=83' 21365+4304 COU2233 distance=84' 21235+4147 TDT2939 distance=84' 21380+4153 A 402 distance=85' 21302+4044 MLB 26 distance=89' 21331+4047 GRV 477 distance=90' 21279+4046 TDT2979 distance=92' 21248+4106 COU2305 distance=93' 21232+4258 COU2304AB distance=94' 21232+4258 GII 32AB,C distance=94' 21381+4258 ES 1458 distance=95' 21365+4105 TDT3055 distance=95' 21368+4332 HJ 1666 distance=98' 21389+4249 J 1232AB distance=99' 21389+4249 J 1232AC distance=99' 21398+4211 TDT3094 distance=103' 21395+4144 BU 449AB distance=104' 21395+4144 STT 447AC distance=104' 21395+4144 BU 449AD distance=104' 21395+4144 STT 447AE distance=104' 21395+4144 ABH 148AH distance=104' 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 21306+4213 STT 441 AB 328 6.1 0
Show 21306+4213 FYM 336 AC 123 9.5 0
Show 21306+4213 FYM 336 AD 280 19.4 0
Show 21309+4228 TDT3004 AB 164 5.9 16
Show 21304+4229 TDT3003 309 0.5 16
Show 21291+4202 TDT2987 37 0.5 20
Show 21322+4155 TDT3016 356 0.6 26
Show 21302+4143 COU1973 194 0.8 29
Show 21336+4209 KPP4237 146 25.1 34
Show 21340+4156 J 3142 57 5.8 43
Show 21330+4139 TDT3024 316 0.5 44
Show 21268+4228 A 619 61 0.7 45
Show 21261+4203 COU2307 21 1.2 51
Show 21330+4127 TDT3025 55 0.5 53
Show 21296+4307 COU2232 17 1.8 56
Show 21260+4144 BLL 54 296 80.7 59
Show 21333+4306 ES 1455 293 6.6 59
Show 21280+4305 HO 160 182 2.0 60
Show 21265+4254 TDT2967 4 1.4 61
Show 21361+4206 TDT3050 310 0.7 62
Show 21360+4237 ES 1457 AB 76 3.7 66
Show 21256+4138 A 618 276 0.6 66
Show 21281+4110 COU2231 35 0.1 69
Show 21354+4128 GRV 480 17 15.1 71
Show 21355+4300 ES 1456 137 3.5 72
Show 21273+4315 HJ 1646 115 23.1 73
Show 21362+4253 HO 463 180 0.5 74
Show 21286+4102 UC 262 199 48.3 75
Show 21260+4112 HDS3052 260 0.2 80
Show 21373+4145 GRV 486 348 28.0 80
Show 21360+4307 TDT3049 337 1.4 81
Show 21250+4122 ES 1692 313 3.8 81
Show 21346+4322 AG 418 113 13.9 83
Show 21365+4304 COU2233 113 0.1 84
Show 21235+4147 TDT2939 174 0.4 84
Show 21380+4153 A 402 47 0.8 85
Show 21302+4044 MLB 26 70 5.0 89
Show 21331+4047 GRV 477 316 21.5 90
Show 21279+4046 TDT2979 0 3.2 92
Show 21248+4106 COU2305 101 0.3 93
Show 21232+4258 COU2304 AB 154 0.4 94
Show 21232+4258 GII 32 AB,C 49 5.4 94
Show 21381+4258 ES 1458 187 2.9 95
Show 21365+4105 TDT3055 247 0.5 95
Show 21368+4332 HJ 1666 238 8.1 98
Show 21389+4249 J 1232 AB 204 2.7 99
Show 21389+4249 J 1232 AC 304 1.2 99
Show 21398+4211 TDT3094 229 2.9 103
Show 21395+4144 BU 449 AB 14 6.0 104
Show 21395+4144 STT 447 AC 176 14.0 104
Show 21395+4144 BU 449 AD 248 18.9 104

 
 
WDS 21306+4213 : COMPONENTS
 
 
  A B C
B pa=328.2°
sep=6.10"
 
C pa=122.5°
sep=9.50"
pa=132.5°
sep=15.23"
 
D pa=280.0°
sep=19.40"
pa=263.5°
sep=15.99"
pa=287.4°
sep=28.41"
 
 
21306+4213 A
 
 
Name HD 204919 Coord arcsec 2000 213035.00+421240.4 Mag 8.27 Spectral class A7V (white)
PmRA -1.00 PmDE -9.0 SAO 50950 HIP 106191
Tycho2 3191-01712-1 HD 204919 BD BD+41 4169
Tycho2
Tycho2 3191-01712-1 Pflag RAmdeg 322.64583906 DEmdeg 42.21122924
PmRA -4.2 PmDE -5.9 E RAmdeg 5 E DEmdeg 5
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.51 EpDEm 1991.51
Num 5 Q RAmdeg 1.0 Q DEmdeg 1.0 Q pmRA 1.0
Q pmDE 0.9 BTmag 8.609 E BTmag 0.016 VTmag 8.274
E VTmag 0.011 Prox 63 TYC T HIP 106191
CCDM A RAdeg 322.64585194 DEdeg 42.21124278 EpRA 1990 1.70
EpDE 1990 1.68 E RAdeg 5.4 E DEdeg 5.3 Posflg
Corr 0.1
SAO
SAO 50950 DelFlag RA1950 PmRA1950 -0.0006
DE1950 PmDE1950 -0.004 Vmag 8.2 SpType A2
Double code Source 4 CatNum 2068 DM BD+41 4169
DMcomp BDsup HD 204919 M HD 0
GC RA1950rad 5.62272723 DE1950rad 0.73287734 PmRA2000 -0.0003
PmDE2000 -0.008
Hipparcos
Catalog H HIP 106191 Proxy H RAhms 21 30 35.00
DEdms +42 12 40.5 Vmag 8.17 VarFlag R Vmag H
RAdeg 322.646 DEdeg 42.2112 AstroRef A Plx 5.83
CCDM -4.93 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 327 Rho 6.287 HD BD BD+41 4169
CD CP Dm number +41 4169 VIred 0.35
SpType A2... R SpType Coord arcsec 2000 213035.00+421240.5
Hipparcos 2
HIP 106191 Sn 15 So 3 Nc 2
RArad 5.6312324193 DErad 0.7367251655 Plx 5.75 PmRA -4.32
PmDE -6.44 E RArad 0.56 E DErad 0.56 E Plx 0.8
E pmRA 0.66 E pmDE 0.7 Hpmag E Hpmag 0.0019
SHp 0.017 VA 0 BV 0.326 E BV 0.019
VI 0.38
CCDM
Ccdm 21306+4213 RComp Comp A Note1
Note2 Discov num DRAs -0.96 DDEs -18.9
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.9 Sp A2 PmNote *
PmRA 4 PmDE 8 Dm number +41 4169 Cat1 BD
Name2 +41 2068 Cat2 AGK2/3 HD 204919 M HD
ADS BDS A15045 M ADS BDS N IDS IDS 21267N4146A
HIC 106191
 
 
21306+4213 B
 
 
Coord arcsec 2000 213034.71+421245.6 Mag 11.26 PmRA 2.00 PmDE -5.0
Delta magnitude 2.99 Coordinate calculated yes
CCDM
Ccdm 21306+4213 RComp Comp B Note1
Note2 Discov num STT 441 DRAs DDEs
R dRAs Year 1847 Theta 321 Rho 6.8
Obs 5 Vmag 10.6 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15045 M ADS BDS N IDS IDS 21267N4146B
HIC 106191
 
 
21306+4213 C
 
 
Coord arcsec 2000 213035.72+421235.3 Mag 14.9 Delta magnitude 6.63 Coordinate calculated yes
 
 
21306+4213 D
 
 
Coord arcsec 2000 213033.28+421243.8 Mag 14.7 Delta magnitude 6.43 Coordinate calculated yes