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Doubles in session


Current system
20028+3742
SEI 817
HD 227319


Nearby doubles
8' : 20031+3733
ES 2045

9' : 20033+3736
GMZ 199

16' : 20024+3728
SEI 813

19' : 20025+3724
SEI 814

20' : 20022+3724
NYS 4

21' : 20042+3728
ALI 654

22' : 20042+3755
TOR 19

22' : 20010+3742
BU 1289AB

23' : 20010+3737
SEI 786

26' : 20033+3807
SEI 825

33' : 20056+3746
A 1414

34' : 20034+3815
A 1412

35' : 20012+3811
ALI 652

36' : 20041+3815
TOR 18

37' : 20024+3706
SEI 810

39' : 20037+3820
HJ 1470

39' : 20042+3707
ALI 403

40' : 20059+3755
ES 2119AB

41' : 20030+3701
COU2211

41' : 20022+3822
TDT1927

41' : 20017+3703
GRV 306

41' : 19596+3756
SEI 775

42' : 20039+3822
SEI 835

43' : 20044+3820
TOR 20

44' : 20051+3814
COU2213

44' : 20050+3707
COU2212



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

20028+3742 SEI 817 (HD 227319)

 
 
20h 02m 49.34s +37° 42' 00.4" P.A. 102.00 sep 21.6 mag 10.02,12.20 Sp B
 
 
Coord 2000 20028+3742 Discov num SEI 817 Comp Coord arcsec 2000 20 02 49.34 +37 42 00.4
Date first 1896 Date last 2015 Obs 11
Pa first 96 Pa last 101.6 P.A. Now (θ) 101.6°
Sep first 23.4 Sep last 21.59 Sep. Now (ρ) 21.59"
Mag pri 10.02 Mag sec 12.20 delta mag (ΔM) 2.18 Spectral class B (blue-white)
Pri motion ra -005 Sec motion ra -020
Pri motion dec -008 Sec motion dec -032
Notes
rPM=0.75
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 227319 Constellation Cygnus Tycho2 3150-02492-1 Gaia DR2 2060329282612139520
HD 227319
 
 
WDS 20028+3742 SEI 817 (HD 227319) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
idgroup discov author
1 SEI Scheiner, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20028+3742 SEI 817 2000 4 101 21.8 10.02 12.20 B D 200249.34+374200.4
20028+3742 SEI 817 2002 5 101 21.7 10.02 12.20 B D 200249.34+374200.4
20028+3742 SEI 817 2010 6 102 21.4 10.02 12.20 B 200249.34+374200.4
20028+3742 SEI 817 2015 7 102 21.6 10.02 12.20 B 200249.34+374200.4

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

 
 
WDS 20028+3742 SEI 817 (HD 227319) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20028+3742 SEI 817 (HD 227319) : MEASURES
 
 
No records found.

 
 
WDS 20028+3742 (HD 227319) : VIRTUAL EYEPIECE
 
 

20028+3742 SEI 817A mag 10.02 Sp B 20028+3742 SEI 817B sep 17.3 P.A. 104.50 mag 12.2 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 20028+3742 (HD 227319) : ALADIN DSS IMAGE @ 20h 02m 49.34s +37° 42' 00.4"
 
 
 
 
WDS 20028+3742 SEI 817 (HD 227319) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20028+3742 SEI 817 distance=0' 20031+3733 ES 2045 distance=8' 20033+3736 GMZ 199 distance=9' 20024+3728 SEI 813 distance=16' 20025+3724 SEI 814 distance=19' 20022+3724 NYS 4 distance=20' 20042+3728 ALI 654 distance=21' 20042+3755 TOR 19 distance=22' 20010+3742 BU 1289AB distance=22' 20010+3742 BU 1289AC distance=22' 20010+3742 FOX 246AB,D distance=22' 20010+3742 WAL 125AB,E distance=22' 20010+3737 SEI 786 distance=23' 20033+3807 SEI 825 distance=26' 20056+3746 A 1414 distance=33' 20034+3815 A 1412 distance=34' 20012+3811 ALI 652 distance=35' 20041+3815 TOR 18 distance=36' 20024+3706 SEI 810 distance=37' 20037+3820 HJ 1470 distance=39' 20042+3707 ALI 403 distance=39' 20059+3755 ES 2119BC distance=40' 20059+3755 ES 2119AB distance=40' 20030+3701 COU2211 distance=41' 20022+3822 TDT1927 distance=41' 20017+3703 GRV 306 distance=41' 19596+3756 SEI 775 distance=41' 20039+3822 SEI 835 distance=42' 20044+3820 TOR 20 distance=43' 20051+3814 COU2213 distance=44' 20050+3707 COU2212 distance=44' 19592+3724 COU2412 distance=46' 19590+3750 ALI 651 distance=46' 20057+3711 SEI 850 distance=47' 20060+3714 TOB 165CD distance=47' 20060+3714 TOB 165BC distance=47' 20060+3714 SEI 866AB distance=48' 20060+3714 TOB 165AD distance=48' 19590+3759 SEI 760 distance=49' 20005+3659 SEI 782 distance=52' 19591+3809 COU2411 distance=52' 20062+3708 SEI 874 distance=53' 19584+3751 KPP2624 distance=54' 20060+3821 POP 185AB distance=54' 20060+3821 POP 185AC distance=54' 20060+3821 POP 185AD distance=54' 20060+3821 POP 185AE distance=54' 20060+3821 POP 185AG distance=54' 20073+3738 TDT1995AB distance=55' 20073+3738 POP 189AC distance=55' 20073+3753 SKF 290 distance=55' 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 20028+3742 SEI 817 102 21.6 0
Show 20031+3733 ES 2045 135 3.7 8
Show 20033+3736 GMZ 199 304 11.9 9
Show 20024+3728 SEI 813 328 24.3 16
Show 20025+3724 SEI 814 326 19.1 19
Show 20022+3724 NYS 4 131 23.6 20
Show 20042+3728 ALI 654 351 10.9 21
Show 20042+3755 TOR 19 97 8.8 22
Show 20010+3742 BU 1289 AB 55 0.7 22
Show 20010+3742 BU 1289 AC 89 21.5 22
Show 20010+3742 FOX 246 AB,D 170 104.2 22
Show 20010+3742 WAL 125 AB,E 10 46.5 22
Show 20010+3737 SEI 786 253 28.8 23
Show 20033+3807 SEI 825 155 7.2 26
Show 20056+3746 A 1414 34 0.3 33
Show 20034+3815 A 1412 228 0.8 34
Show 20012+3811 ALI 652 55 9.4 35
Show 20041+3815 TOR 18 116 13.2 36
Show 20024+3706 SEI 810 157 20.2 37
Show 20037+3820 HJ 1470 340 29.3 39
Show 20042+3707 ALI 403 130 13.7 39
Show 20059+3755 ES 2119 BC 256 5.7 40
Show 20059+3755 ES 2119 AB 256 12.8 40
Show 20030+3701 COU2211 257 1.0 41
Show 20022+3822 TDT1927 243 0.8 41
Show 20017+3703 GRV 306 213 29.1 41
Show 19596+3756 SEI 775 65 20.3 41
Show 20039+3822 SEI 835 10 25.6 42
Show 20044+3820 TOR 20 158 17.3 43
Show 20051+3814 COU2213 174 2.5 44
Show 20050+3707 COU2212 198 0.5 44
Show 19592+3724 COU2412 78 0.4 46
Show 19590+3750 ALI 651 200 16.8 46
Show 20057+3711 SEI 850 339 25.8 47
Show 20060+3714 TOB 165 CD 102 29.6 47
Show 20060+3714 TOB 165 BC 33 22.3 47
Show 20060+3714 SEI 866 AB 326 22.7 48
Show 20060+3714 TOB 165 AD 42 42.2 48
Show 19590+3759 SEI 760 158 5.2 49
Show 20005+3659 SEI 782 199 25.7 52
Show 19591+3809 COU2411 49 0.4 52
Show 20062+3708 SEI 874 347 25.5 53
Show 19584+3751 KPP2624 114 24.2 54
Show 20060+3821 POP 185 AB 125 43.5 54
Show 20060+3821 POP 185 AC 185 64.9 54
Show 20060+3821 POP 185 AD 62 128.5 54
Show 20060+3821 POP 185 AE 101 120.0 54
Show 20060+3821 POP 185 AG 293 19.1 54
Show 20073+3738 TDT1995 AB 344 2.5 55
Show 20073+3738 POP 189 AC 328 7.6 55
Show 20073+3753 SKF 290 157 22.9 55

 
 
WDS 20028+3742 : COMPONENTS
 
 
  A
B pa=104.5°
sep=17.29"
 
 
20028+3742 A
 
 
Name HD 227319 Coord arcsec 2000 200249.34+374200.4 Mag 10.02 Spectral class B (blue-white)
PmRA -5.00 PmDE -8.0 Tycho2 3150-02492-1 HD 227319
Tycho2
Tycho2 3150-02492-1 Pflag RAmdeg 300.70563373 DEmdeg 37.70011965
PmRA -5.5 PmDE -10.1 E RAmdeg 16 E DEmdeg 15
E pmRA 1.3 E pmDE 1.3 EpRAm 1989.12 EpDEm 1989.47
Num 6 Q RAmdeg 1.1 Q DEmdeg 1.1 Q pmRA 1.1
Q pmDE 1.2 BTmag 10.062 E BTmag 0.027 VTmag 10.017
E VTmag 0.031 Prox 999 TYC T HIP
CCDM RAdeg 300.70565139 DEdeg 37.70014222 EpRA 1990 1.62
EpDE 1990 1.78 E RAdeg 17.2 E DEdeg 16.2 Posflg
Corr 0.1
CCDM
Ccdm 20028+3742 RComp Comp A Note1
Note2 Discov num DRAs 1.39 DDEs -0.1
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.6 Sp A PmNote
PmRA PmDE Dm number +37 3736 Cat1 BD
Name2 Cat2 HD 227319 M HD
ADS BDS M ADS BDS N IDS IDS 19592N3725A
HIC
 
 
20028+3742 B
 
 
Coord arcsec 2000 200250.75+374156.1 Mag 12.2 PmRA -20.00 PmDE -32.0
Calc delta mag 2.18 Calc coord yes
CCDM
Ccdm 20028+3742 RComp Comp B Note1
Note2 Discov num SEI 817 DRAs 3.20 DDEs -3.6
R dRAs 65 Year 1896 Theta 095 Rho 23.3
Obs 1 Vmag 12.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 19592N3725B
HIC