21209+4127 HO 156 Aa,Ab

 
 
21h 20m 53.71s +41° 26' 31.4" P.A. 42.00 sep 0.3 mag 7.69, Sp G5 dist. 505.05 pc (1647.47 l.y.)
 
 
Coord 2000 21209+4127 Discov num HO  156 Comp Aa,Ab Coord arcsec 2000 21 20 53.71 +41 26 31.4
Date first 2015 Date last 2015 Obs 2
Pa first 40 Pa last 41.7 P.A. Now (θ) 41.7°
Sep first 0.4 Sep last 0.345 Sep. Now (ρ) 0.345"
Mag pri 7.69 Mag sec delta mag (ΔM) Spectral class G5 (yellow)
Pri motion ra -014 Sec motion ra
Pri motion dec -021 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21209+4127 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 50736 21 20 54 +41 26 31 HO 156 Aa,Ab 2015 2 42 0.3 7.69 <===
Show HD 203426 50736 21 20 54 +41 26 31 HO 156 AB 2015 12 50 2.2 7.69 11.29 3.60
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 50736 HIP 105397 Tycho2 3190-00075-1
HD 203426 BD BD+40 4496 Distance 505.05 Distance ly 1647.47
 
 
WDS 21209+4127 HO 156 Aa,Ab : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
HO Hough, G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
21209+4127 HO 156 Aa,Ab 2015 2 42 0.3 7.69   G5 +40 4496 212053.71+412631.4

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

 
 
WDS 21209+4127 HO 156 Aa,Ab : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21209+4127 HO 156 Aa,Ab : MEASURES
 
 
No records found.

 
 
WDS 21209+4127 : VIRTUAL EYEPIECE
 
 

21209+4127 HO 156A mag 7.69 Sp G5 21209+4127 HO 156Ab sep 0.3 P.A. 41.70 21209+4127 HO 156B sep 2.2 P.A. 50.30 mag 11.29 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21209+4127 : ALADIN DSS IMAGE @ 21h 20m 53.71s +41° 26' 31.4"
 
 
 
 
WDS 21209+4127 HO 156 Aa,Ab : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21209+4127 HO 156Aa,Ab distance=0' 21193+4108 TDT2901 distance=27' 21192+4102 HO 602 distance=32' 21183+4140 COU2302AB distance=32' 21183+4140 GII 30AB,C distance=32' 21189+4102 HO 601AB distance=33' 21189+4102 HO 601AC distance=33' 21217+4053 ES 1691 distance=35' 21235+4147 TDT2939 distance=36' 21219+4049 GRV 456 distance=40' 21208+4206 GRV 453 distance=40' 21195+4048 TDT2903 distance=42' 21202+4207 ES 1584 distance=43' 21169+4140 POP 186CD distance=46' 21250+4122 ES 1692 distance=47' 21169+4140 POP 186AB distance=47' 21169+4140 POP 186AC distance=47' 21206+4215 LDS2511AB distance=49' 21206+4215 LDS2511AC distance=49' 21206+4215 LDS2511Aa,Ab distance=49' 21248+4106 COU2305 distance=49' 21163+4129 ES 1688 distance=52' 21206+4219 WSI 16 distance=53' 21164+4110 ES 1689 distance=54' 21256+4138 A 618 distance=54' 21228+4031 HO 287 distance=57' 21171+4206 TDT2883 distance=58' 21157+4135 POP 170 distance=59' 21260+4112 HDS3052 distance=60' 21161+4101 COU2229 distance=60' 21260+4144 BLL 54 distance=60' 21192+4026 LDS2508AB distance=64' 21197+4228 ES 1583BC distance=64' 21197+4228 ES 1583AB distance=64' 21197+4228 ABH 144AD distance=64' 21197+4228 ABH 144AE distance=64' 21197+4228 ABH 144AF distance=64' 21197+4228 ABH 144AG distance=64' 21197+4228 ABH 144AH distance=64' 21197+4228 ABH 144AI distance=64' 21197+4228 ABH 144AJ distance=64' 21197+4228 ABH 144AK distance=64' 21197+4228 ES 1583AC distance=64' 21165+4046 ES 1690 distance=65' 21261+4203 COU2307 distance=70' 21257+4043 COU2306 distance=70' 21213+4235 LDS2513 distance=70' 21204+4017 RAO 451 distance=70' 21155+4202 HJL1106 distance=71' 21155+4205 TDT2861 distance=72' 21147+4143 POP1231 distance=72' grafico limitrofi
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Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 21209+4127 HO 156 AB 50 2.2 0
Show 21209+4127 HO 156 Aa,Ab 42 0.3 0
Show 21193+4108 TDT2901 306 0.5 27
Show 21192+4102 HO 602 27 4.2 32
Show 21183+4140 COU2302 AB 63 1.3 32
Show 21183+4140 GII 30 AB,C 187 14.1 32
Show 21189+4102 HO 601 AB 176 17.1 33
Show 21189+4102 HO 601 AC 82 56.7 33
Show 21217+4053 ES 1691 174 5.3 35
Show 21235+4147 TDT2939 174 0.4 36
Show 21219+4049 GRV 456 56 36.5 40
Show 21208+4206 GRV 453 27 66.2 40
Show 21195+4048 TDT2903 9 0.4 42
Show 21202+4207 ES 1584 116 5.4 43
Show 21169+4140 POP 186 CD 93 4.2 46
Show 21250+4122 ES 1692 313 3.8 47
Show 21169+4140 POP 186 AB 297 10.7 47
Show 21169+4140 POP 186 AC 130 60.7 47
Show 21206+4215 LDS2511 AB 40 3.0 49
Show 21206+4215 LDS2511 AC 197 19.7 49
Show 21206+4215 LDS2511 Aa,Ab 45 0.3 49
Show 21248+4106 COU2305 101 0.3 49
Show 21163+4129 ES 1688 147 5.3 52
Show 21206+4219 WSI 16 149 8.2 53
Show 21164+4110 ES 1689 136 3.3 54
Show 21256+4138 A 618 276 0.6 54
Show 21228+4031 HO 287 6 2.7 57
Show 21171+4206 TDT2883 112 0.9 58
Show 21157+4135 POP 170 75 1.4 59
Show 21260+4112 HDS3052 260 0.2 60
Show 21161+4101 COU2229 278 0.8 60
Show 21260+4144 BLL 54 296 80.7 60
Show 21192+4026 LDS2508 AB 357 7.8 64
Show 21197+4228 ES 1583 BC 77 6.0 64
Show 21197+4228 ES 1583 AB 238 13.0 64
Show 21197+4228 ABH 144 AD 112 64.4 64
Show 21197+4228 ABH 144 AE 219 27.2 64
Show 21197+4228 ABH 144 AF 245 62.8 64
Show 21197+4228 ABH 144 AG 238 82.9 64
Show 21197+4228 ABH 144 AH 22 41.7 64
Show 21197+4228 ABH 144 AI 117 69.6 64
Show 21197+4228 ABH 144 AJ 112 81.2 64
Show 21197+4228 ABH 144 AK 98 101.4 64
Show 21197+4228 ES 1583 AC 223 7.6 64
Show 21165+4046 ES 1690 101 3.8 65
Show 21261+4203 COU2307 21 1.2 70
Show 21257+4043 COU2306 18 0.7 70
Show 21213+4235 LDS2513 246 7.1 70
Show 21204+4017 RAO 451 116 2.8 70
Show 21155+4202 HJL1106 183 459.8 71
Show 21155+4205 TDT2861 287 2.4 72

 
 
WDS 21209+4127 : COMPONENTS
 
 
  A Ab
Ab pa=41.7°
sep=0.34"
 
B pa=50.3°
sep=2.19"
pa=51.9°
sep=1.85"
 
 
21209+4127 A
 
 
Name HD 203426 Coord arcsec 2000 212053.71+412631.4 Mag 7.69 Spectral class G5 (yellow)
PmRA -14.00 PmDE -21.0 SAO 50736 HIP 105397
Tycho2 3190-00075-1 HD 203426 BD BD+40 4496
Tycho2
Tycho2 3190-00075-1 Pflag RAmdeg 320.22377527 DEmdeg 41.44206797
PmRA -14.4 PmDE -21.4 E RAmdeg 5 E DEmdeg 5
E pmRA 0.9 E pmDE 0.9 EpRAm 1991.15 EpDEm 1991.26
Num 10 Q RAmdeg 1.6 Q DEmdeg 1.0 Q pmRA 1.6
Q pmDE 1.0 BTmag 8.875 E BTmag 0.016 VTmag 7.689
E VTmag 0.010 Prox 22 TYC T HIP 105397
CCDM A RAdeg 320.22381944 DEdeg 41.44211750 EpRA 1990 1.59
EpDE 1990 1.64 E RAdeg 4.8 E DEdeg 4.7 Posflg
Corr 0.1
SAO
SAO 50736 DelFlag RA1950 PmRA1950 0.0009
DE1950 PmDE1950 -0.008 Vmag 7.6 SpType G5
Double code Source 4 CatNum 2043 DM BD+40 4496
DMcomp BDsup HD 203426 M HD 0
GC RA1950rad 5.58053255 DE1950rad 0.7195877 PmRA2000 0.0012
PmDE2000 -0.011
Hipparcos
Catalog H HIP 105397 Proxy H RAhms 21 20 53.72
DEdms +41 26 31.6 Vmag 7.65 VarFlag R Vmag G
RAdeg 320.224 DEdeg 41.4421 AstroRef A Plx 1.66
CCDM -12.43 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 50 Rho 2.176 HD BD BD+40 4496
CD CP Dm number +40 4496 VIred 0.99
SpType G5 R SpType Coord arcsec 2000 212053.72+412631.6
Hipparcos 2
HIP 105397 Sn 15 So 3 Nc 2
RArad 5.5889600492 DErad 0.7233014349 Plx 1.98 PmRA -12.04
PmDE -20.02 E RArad 0.47 E DErad 0.55 E Plx 0.73
E pmRA 0.54 E pmDE 0.6 Hpmag E Hpmag 0.0015
SHp 0.014 VA 0 BV 0.713 E BV 0.126
VI 0.99
CCDM
Ccdm 21209+4127 RComp Comp A Note1
Note2 Discov num DRAs -0.20 DDEs -28.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.8 Sp G5 PmNote *
PmRA 2 PmDE -14 Dm number +40 4496 Cat1 BD
Name2 +41 2043 Cat2 AGK2/3 HD 203426 M HD
ADS BDS A14896 M ADS BDS N IDS IDS 21170N4101A
HIC 105397
 
 
21209+4127 Ab
 
 
Coord arcsec 2000 212053.73+412631.7 Delta magnitude 7.69 Coordinate calculated yes
 
 
21209+4127 B
 
 
Coord arcsec 2000 212053.86+412632.8 Mag 11.29 PmRA -12.00 PmDE -21.0
Delta magnitude 3.6 Coordinate calculated yes
CCDM
Ccdm 21209+4127 RComp Comp B Note1
Note2 Discov num HO 156 DRAs DDEs
R dRAs Year 1923 Theta 050 Rho 2.3
Obs 5 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A14896 M ADS BDS N IDS IDS 21170N4101B
HIC 105397