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Doubles in session


Current system
20297+3808
STF 2691
HD 195406


Nearby doubles
11' : 20288+3810
ES 206

13' : 20288+3812
ES 2508

17' : 20302+3823
SEI1141

17' : 20304+3753
TDT2328

21' : 20280+3813
ES 2507

23' : 20282+3821
TDT2304

23' : 20315+3806
SEI1151

23' : 20308+3749
SEI1146AB

23' : 20281+3820
SMR 71

26' : 20300+3832
SMA 117

28' : 20304+3833
A 1430

29' : 20296+3836
SEI1136

32' : 20276+3926
GUL 3

34' : 20314+3833
JNN 284

34' : 20317+3831
ES 246AB

35' : 20297+3733
ES 2509

38' : 20293+3731
WEI 35AB

43' : 20331+3822
TDT2363

43' : 20311+3847
SEI1150

44' : 20281+3847
ALI 933

44' : 20306+3850
SEI1144

46' : 20259+3758
SEI1123

49' : 20328+3736
TDT2355

50' : 20296+3856
MLB 775

50' : 20311+3854
SEI1149

52' : 20323+3726
SEI1156



Selections
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20297+3808 STF 2691 (HD 195406)

 
 
20h 29m 43.18s +38° 07' 31.5" P.A. 32.00 sep 16.3 mag 8.14,8.45 Sp B6V dist. 214.13 pc (698.49 l.y.)
 
 
Coord 2000 20297+3808 Discov num STF2691 Comp Coord arcsec 2000 20 29 43.18 +38 07 31.5
Date first 1828 Date last 2019 Obs 47
Pa first 31 Pa last 32 P.A. Now (θ) 32°
Sep first 15.0 Sep last 16.3 Sep. Now (ρ) 16.3"
Mag pri 8.14 Mag sec 8.45 delta mag (ΔM) 0.31 Spectral class B6V (blue-white)
Pri motion ra +002 Sec motion ra +000
Pri motion dec +002 Sec motion dec +000
Notes N (See Notes)
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 195406 Constellation Cygnus SAO 70107 HIP 101109
Tycho2 3152-02085-1 Gaia DR2 2064064873332474240 HD 195406 GC 28522
BD BD+37 3952 Distance 214.13 Distance ly 698.49
 
 
WDS 20297+3808 STF 2691 (HD 195406) : NOTES
 
 
discov_num notes refcode
STF2691 SEI1138. Nsn2017d
 
 
REFERENCES
 
 
refcode metd author reference
Nsn2017d not - Nanson, J. ...................
Nsn2017d private communication, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20297+3808 STF2691 2008 35 31 17.2 8.14 8.45 B6V D 202943.18+380731.5
20297+3808 STF2691 2012 39 31 17.3 8.14 8.45 B6V D 202943.18+380731.5
20297+3808 STF2691 2013 40 31 17.2 8.14 8.45 B6V D 202943.18+380731.5
20297+3808 STF2691 2017 42 31 17.0 8.14 8.45 B6V N 202943.18+380731.5
20297+3808 STF2691 2019 47 32 16.3 8.14 8.45 B6V N 202943.18+380731.5

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

 
 
WDS 20297+3808 STF 2691 (HD 195406) : VISUAL OBSERVATIONS REPORTS
 
 
Show date username difficulty separation pa_estim interest notes
Show 23/07/29 Daedalus1 mean difficulty separated 31   Widely separated white pair. Primary seems somewhat brighter.

 
 
WDS 20297+3808 STF 2691 (HD 195406) : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 23/07/29 Daedalus1 mean difficulty 16.63 0.07 31.00 0.00 0.30 12 Seeing: Pickering 7, good.
 
 
WDS 20297+3808 (HD 195406) : VIRTUAL EYEPIECE
 
 

20297+3808 STF2691A mag 8.14 Sp B6V 20297+3808 STF2691B sep 15.4 P.A. 26.20 mag 8.45 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 20297+3808 (HD 195406) : ALADIN DSS IMAGE @ 20h 29m 43.18s +38° 07' 31.5"
 
 
 
 
WDS 20297+3808 STF 2691 (HD 195406) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20297+3808 STF2691 distance=0' 20288+3810 ES 206 distance=11' 20288+3812 ES 2508 distance=13' 20302+3823 SEI1141 distance=17' 20304+3753 TDT2328 distance=17' 20280+3813 ES 2507 distance=21' 20282+3821 TDT2304 distance=23' 20315+3806 SEI1151 distance=23' 20308+3749 SEI1146AB distance=23' 20308+3749 SEI1147AC distance=23' 20281+3820 SMR 71 distance=23' 20300+3832 SMA 117 distance=26' 20304+3833 A 1430 distance=28' 20296+3836 SEI1136 distance=29' 20276+3926 GUL 3 distance=32' 20314+3833 JNN 284 distance=34' 20317+3831 ES 246AB distance=34' 20317+3831 ES 246AC distance=34' 20297+3733 ES 2509 distance=35' 20293+3731 WEI 35AB distance=38' 20293+3731 WEI 35AC distance=38' 20293+3731 WEI 35CD distance=38' 20293+3731 WEI 35BC distance=38' 20331+3822 TDT2363 distance=43' 20311+3847 SEI1150 distance=43' 20281+3847 ALI 933 distance=44' 20306+3850 SEI1144 distance=44' 20259+3758 SEI1123 distance=46' 20328+3736 TDT2355 distance=49' 20296+3856 MLB 775 distance=50' 20311+3854 SEI1149 distance=50' 20323+3726 SEI1156 distance=52' 20257+3745 FOX 36 distance=52' 20296+3901 ALI 936AB distance=54' 20296+3901 SEI1137AC distance=54' 20293+3901 DAM 315 distance=54' 20337+3835 A 1431 distance=55' 20263+3728 AG 255 distance=58' 20345+3759 BKO 569 distance=58' 20248+3807 TDT2249 distance=58' 20340+3737 SEI1170 distance=60' 20257+3731 LDS1042 distance=60' 20324+3859 SEI1157 distance=61' 20275+3902 TDT2290 distance=61' 20259+3727 SEI1121 distance=61' 20261+3852 MLB1017 distance=63' 20350+3757 SEI1178AB distance=63' 20350+3757 BKO 570AC distance=63' 20243+3811 TDS1070 distance=64' 20352+3754 SEI1180AB distance=64' 20352+3754 SEI1181AC distance=64' 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 20297+3808 STF2691 32 16.3
Show 20288+3810 ES 206 124 4.2 11
Show 20288+3812 ES 2508 302 6.3 13
Show 20302+3823 SEI1141 175 22.5 17
Show 20304+3753 TDT2328 45 0.5 17
Show 20280+3813 ES 2507 84 8.2 21
Show 20282+3821 TDT2304 199 5.4 23
Show 20315+3806 SEI1151 215 25.1 23
Show 20308+3749 SEI1146 AB 42 10.2 23
Show 20308+3749 SEI1147 AC 286 14.5 23
Show 20281+3820 SMR 71 65 8.4 23
Show 20300+3832 SMA 117 264 12.4 26
Show 20304+3833 A 1430 132 3.4 28
Show 20296+3836 SEI1136 259 11.5 29
Show 20276+3926 GUL 3 335 0.5 32
Show 20314+3833 JNN 284 252 0.1 34
Show 20317+3831 ES 246 AB 355 5.1 34
Show 20317+3831 ES 246 AC 354 9.9 34
Show 20297+3733 ES 2509 241 3.3 35
Show 20293+3731 WEI 35 AB 214 4.2 38
Show 20293+3731 WEI 35 AC 100 87.6 38
Show 20293+3731 WEI 35 CD 202 12.1 38
Show 20293+3731 WEI 35 BC 98 89.3 38
Show 20331+3822 TDT2363 174 0.5 43
Show 20311+3847 SEI1150 74 21.6 43
Show 20281+3847 ALI 933 254 13.8 44
Show 20306+3850 SEI1144 177 18.1 44
Show 20259+3758 SEI1123 138 27.6 46
Show 20328+3736 TDT2355 57 2.3 49
Show 20296+3856 MLB 775 167 10.8 50
Show 20311+3854 SEI1149 203 19.6 50
Show 20323+3726 SEI1156 89 5.9 52
Show 20257+3745 FOX 36 325 2.7 52
Show 20296+3901 ALI 936 AB 77 10.5 54
Show 20296+3901 SEI1137 AC 310 22.0 54
Show 20293+3901 DAM 315 281 10.3 54
Show 20337+3835 A 1431 29 0.9 55
Show 20263+3728 AG 255 287 5.2 58
Show 20345+3759 BKO 569 73 8.5 58
Show 20248+3807 TDT2249 275 0.5 58
Show 20340+3737 SEI1170 28 17.3 60
Show 20257+3731 LDS1042 174 8.6 60
Show 20324+3859 SEI1157 66 7.6 61
Show 20275+3902 TDT2290 285 0.8 61
Show 20259+3727 SEI1121 207 28.1 61
Show 20261+3852 MLB1017 21 3.2 63
Show 20350+3757 SEI1178 AB 174 19.1 63
Show 20350+3757 BKO 570 AC 12 6.2 63
Show 20243+3811 TDS1070 203 1.9 64
Show 20352+3754 SEI1180 AB 138 28.4 64
Show 20352+3754 SEI1181 AC 102 29.4 64

 
 
WDS 20297+3808 : COMPONENTS
 
 
  A
B pa=26.2°
sep=15.40"
 
 
20297+3808 A
 
 
Componente originario normalizzato AB Name HD 195406 Coord arcsec 2000 202943.18+380731.5 Mag 8.14
Spectral class B6V (blue-white) PmRA 2.00 PmDE 2.0 SAO 70107
HIP 101109 Tycho2 3152-02085-1 HD 195406 GC 28522
BD BD+37 3952
Tycho2
Tycho2 3152-02085-1 Pflag RAmdeg 307.42991546 DEmdeg 38.12541911
PmRA 2.4 PmDE 2.0 E RAmdeg 5 E DEmdeg 5
E pmRA 1.2 E pmDE 1.2 EpRAm 1991.45 EpDEm 1991.43
Num 10 Q RAmdeg 0.8 Q DEmdeg 1.4 Q pmRA 0.9
Q pmDE 1.4 BTmag 8.070 E BTmag 0.015 VTmag 8.141
E VTmag 0.012 Prox 172 TYC T HIP 101109
CCDM A RAdeg 307.42990833 DEdeg 38.12541444 EpRA 1990 1.67
EpDE 1990 1.66 E RAdeg 5.3 E DEdeg 5.4 Posflg
Corr 0.1
SAO
SAO 70107 DelFlag RA1950 PmRA1950 0.0003
DE1950 PmDE1950 0.022 Vmag 8.3 SpType B9
Double code Source 70 CatNum 28522 DM BD+37 3952
DMcomp BDsup HD 195406 M HD 0
GC 28522 RA1950rad 5.35750918 DE1950rad 0.66248111 PmRA2000 0.0006
PmDE2000 0.02
Hipparcos
Catalog H HIP 101109 Proxy RAhms 20 29 43.18
DEdms +38 07 31.5 Vmag 8.19 VarFlag R Vmag G
RAdeg 307.43 DEdeg 38.1254 AstroRef A Plx 6.97
CCDM 20297+3808 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source P Qual B M HIP
Theta Rho HD 195406 BD BD+37 3952
CD CP Dm number +37 3952 VIred -0.05
SpType B6V R SpType Coord arcsec 2000 202943.18+380731.5
Hipparcos 2
HIP 101109 Sn 95 So 3 Nc 1
RArad 5.3656641288 DErad 0.6654139802 Plx -4.67 PmRA -2.87
PmDE 18.1 E RArad 2.97 E DErad 3.35 E Plx 4.28
E pmRA 3.41 E pmDE 3.77 Hpmag 8.1707 E Hpmag 0.0328
SHp 0.16 VA 0 BV -0.07 E BV 0.015
VI -0.05
CCDM
Ccdm 20297+3808 RComp Comp A Note1
Note2 Discov num DRAs 1.19 DDEs -27.7
R dRAs 12 Year Theta Rho
Obs 2 Vmag 9.2 Sp B9 PmNote
PmRA 2 PmDE 19 Dm number +37 3952 Cat1 BD
Name2 +37 1988 Cat2 AGK2/3 HD 195406 M HD
ADS BDS A13919 M ADS BDS N IDS IDS 20260N3747A
HIC 101109
 
 
20297+3808 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202943.76+380745.3 Mag 8.45 PmRA 0.00
PmDE 0.0 HIP 101110 Tycho2 3152-02084-1 Calc delta mag 0.31
Calc coord yes
Tycho2
Tycho2 3152-02084-1 Pflag RAmdeg 307.43306886 DEmdeg 38.12949076
PmRA 1.4 PmDE 1.8 E RAmdeg 6 E DEmdeg 6
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.46 EpDEm 1991.40
Num 5 Q RAmdeg 0.7 Q DEmdeg 1.2 Q pmRA 0.7
Q pmDE 1.2 BTmag 8.357 E BTmag 0.016 VTmag 8.447
E VTmag 0.014 Prox 172 TYC T HIP 101110
CCDM B RAdeg 307.43306444 DEdeg 38.12948639 EpRA 1990 1.71
EpDE 1990 1.64 E RAdeg 5.9 E DEdeg 6.3 Posflg
Corr 0.1
Hipparcos
Catalog H HIP 101110 Proxy RAhms 20 29 43.94
DEdms +38 07 46.2 Vmag 8.46 VarFlag R Vmag G
RAdeg 307.433 DEdeg 38.1295 AstroRef B Plx 9.52
CCDM 20297+3808 N CCDM I Nsys 2 Ncomp 1
MultFlag C Source I Qual B M HIP
Theta Rho HD 195406 BD
CD CP Dm number VIred -0.03
SpType B9IV R SpType Coord arcsec 2000 202943.94+380746.2
Hipparcos 2
HIP 101110 Sn 95 So 3 Nc 1
RArad 5.365719189 DErad 0.6654850751 Plx 6 PmRA -3.95
PmDE 1.25 E RArad 4.7 E DErad 5.51 E Plx 6.91
E pmRA 5.45 E pmDE 6.57 Hpmag 8.5754 E Hpmag 0.0403
SHp 0 VA 0 BV -0.05 E BV 0.015
VI -0.03
CCDM
Ccdm 20297+3808 RComp Comp B Note1
Note2 Discov num STF2691 DRAs 1.88 DDEs -14.9
R dRAs 10 Year 1831 Theta 032 Rho 17.2
Obs 13 Vmag 9.4 Sp PmNote *
PmRA -6 PmDE -17 Dm number Cat1
Name2 +37 1989 Cat2 AGK2/3 HD M HD
ADS BDS A13919 M ADS BDS N IDS IDS 20260N3747B
HIC 101110