stampa
Login

Too lazy to login each time? Click on "Remember me" at login and forget about it!
Register here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
20177+3921
SEI 1070
HD 228789


Nearby doubles
7' : 20177+3914
COU2536

11' : 20185+3916
MLB 881

13' : 20188+3924
SEI1078

17' : 20163+3924
SEI1051

18' : 20191+3916
TRN 28AB

18' : 20188+3909
SEI1079

21' : 20167+3938
HO 590AB

24' : 20168+3942
STF2663AB

24' : 20192+3938
ES 2051

26' : 20190+3900
HO 125

27' : 20156+3910
SEI1046

27' : 20200+3921
MLB 882

28' : 20189+3945
COU2537

28' : 20201+3921
ES 2050AB

29' : 20158+3937
ES 1974

29' : 20199+3933
HO 593

29' : 20192+3859
HO 126AB

30' : 20203+3924
A 1427AB

30' : 20203+3919
BKO 566

31' : 20159+3859
BRT2230

31' : 20203+3920
SEI1090

31' : 20184+3950
A 1424

31' : 20203+3922
SEI1091

32' : 20151+3929
MLB 982AB

32' : 20160+3856
ALI 926

33' : 20183+3953
BKO 822



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20177+3921 SEI 1070 (HD 228789)

 
 
20h 17m 42.20s +39° 20' 58.4" P.A. 143.00 sep 27.9 mag 10.27,11.06 Sp B
 
 
Coord 2000 20177+3921 Discov num SEI1070 Comp Coord arcsec 2000 20 17 42.20 +39 20 58.4
Date first 1892 Date last 2015 Obs 15
Pa first 144 Pa last 142.5 P.A. Now (θ) 142.5°
Sep first 28.4 Sep last 27.885 Sep. Now (ρ) 27.885"
Mag pri 10.27 Mag sec 11.06 delta mag (ΔM) 0.79 Spectral class B (blue-white)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -005 Sec motion dec -005
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 228789 Constellation Cygnus Tycho2 3151-00165-1 Gaia DR2 2061381102909847296
HD 228789
 
 
WDS 20177+3921 SEI 1070 (HD 228789) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20177+3921 SEI1070 1998 8 142 28.0 10.27 11.06 D 201742.20+392058.4
20177+3921 SEI1070 2002 9 143 27.9 10.27 11.06 D 201742.20+392058.4
20177+3921 SEI1070 2010 10 144 28.2 10.27 11.06 B 201742.20+392058.4
20177+3921 SEI1070 2015 11 143 27.8 10.27 11.06 B 201742.20+392058.4

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

 
 
WDS 20177+3921 SEI 1070 (HD 228789) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20177+3921 SEI 1070 (HD 228789) : MEASURES
 
 
No records found.

 
 
WDS 20177+3921 (HD 228789) : VIRTUAL EYEPIECE
 
 

20177+3921 SEI1070A mag 10.27 Sp B 20177+3921 SEI1070B sep 25.7 P.A. 149.30 mag 11.06 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 20177+3921 (HD 228789) : ALADIN DSS IMAGE @ 20h 17m 42.20s +39° 20' 58.4"
 
 
 
 
WDS 20177+3921 SEI 1070 (HD 228789) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20177+3921 SEI1070 distance=0' 20177+3914 COU2536 distance=7' 20185+3916 MLB 881 distance=11' 20188+3924 SEI1078 distance=13' 20163+3924 SEI1051 distance=17' 20191+3916 TRN 28AB distance=18' 20191+3916 TRN 28AC distance=18' 20188+3909 SEI1079 distance=18' 20167+3938 HO 590AB distance=21' 20167+3938 HO 590AC distance=21' 20168+3942 DAM1040FG distance=23' 20168+3942 STF2663AB distance=24' 20168+3942 CTT 21AC distance=24' 20168+3942 DAM1040AF distance=24' 20192+3938 ES 2051 distance=24' 20190+3900 HO 125 distance=26' 20156+3910 SEI1046 distance=27' 20200+3921 MLB 882 distance=27' 20189+3945 COU2537 distance=28' 20201+3921 ES 2050AB distance=28' 20201+3921 ES 2050AC distance=28' 20158+3937 ES 1974 distance=29' 20199+3933 HO 593 distance=29' 20192+3859 HO 126AB distance=29' 20192+3859 HO 126AC distance=29' 20203+3924 A 1427AB distance=30' 20203+3924 STF2668AB,C distance=30' 20203+3919 BKO 566 distance=30' 20159+3859 BRT2230 distance=31' 20203+3920 SEI1090 distance=31' 20184+3950 A 1424 distance=31' 20203+3922 SEI1091 distance=31' 20151+3929 MLB 982BC distance=32' 20151+3929 MLB 982AB distance=32' 20160+3856 ALI 926 distance=32' 20183+3953 BKO 822 distance=33' 20161+3854 CHR 95 distance=34' 20206+3919 TDS1061 distance=34' 20206+3917 BKO 567AB distance=34' 20206+3917 BKO 567AC distance=34' 20178+3956 HJ 2951AB distance=35' 20178+3956 FOX9014AC distance=35' 20207+3922 SEI1094 distance=36' 20208+3922 BKO 568 distance=37' 20208+3919 TDT2196 distance=37' 20179+3845 SLE 990 distance=37' 20198+3852 SLE1004 distance=38' 20144+3920 SEI1039AB distance=38' 20144+3920 TOB 182AC distance=38' 20209+3928 HO 127 distance=39' 20210+3919 SEI1097AB distance=39' 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 20177+3921 SEI1070 143 27.9
Show 20177+3914 COU2536 312 1.8 7
Show 20185+3916 MLB 881 145 10.3 11
Show 20188+3924 SEI1078 45 17.7 13
Show 20163+3924 SEI1051 148 22.3 17
Show 20191+3916 TRN 28 AB 80 4.9 18
Show 20191+3916 TRN 28 AC 158 3.2 18
Show 20188+3909 SEI1079 110 6.2 18
Show 20167+3938 HO 590 AB 207 3.5 21
Show 20167+3938 HO 590 AC 88 25.9 21
Show 20168+3942 DAM1040 FG 225 3.5 23
Show 20168+3942 STF2663 AB 322 5.4 24
Show 20168+3942 CTT 21 AC 188 103.0 24
Show 20168+3942 DAM1040 AF 123 22.3 24
Show 20192+3938 ES 2051 306 4.9 24
Show 20190+3900 HO 125 196 3.5 26
Show 20156+3910 SEI1046 249 1.5 27
Show 20200+3921 MLB 882 279 5.0 27
Show 20189+3945 COU2537 295 0.8 28
Show 20201+3921 ES 2050 AB 92 5.9 28
Show 20201+3921 ES 2050 AC 191 11.2 28
Show 20158+3937 ES 1974 160 2.9 29
Show 20199+3933 HO 593 313 5.0 29
Show 20192+3859 HO 126 AB 163 2.2 29
Show 20192+3859 HO 126 AC 247 37.0 29
Show 20203+3924 A 1427 AB 132 0.2 30
Show 20203+3924 STF2668 AB,C 280 3.5 30
Show 20203+3919 BKO 566 159 5.9 30
Show 20159+3859 BRT2230 297 6.0 31
Show 20203+3920 SEI1090 154 13.9 31
Show 20184+3950 A 1424 46 1.1 31
Show 20203+3922 SEI1091 180 27.7 31
Show 20151+3929 MLB 982 BC 355 6.0 32
Show 20151+3929 MLB 982 AB 183 30.8 32
Show 20160+3856 ALI 926 282 8.6 32
Show 20183+3953 BKO 822 60 7.1 33
Show 20161+3854 CHR 95 56 0.2 34
Show 20206+3919 TDS1061 345 1.5 34
Show 20206+3917 BKO 567 AB 284 5.6 34
Show 20206+3917 BKO 567 AC 87 5.2 34
Show 20178+3956 HJ 2951 AB 125 10.8 35
Show 20178+3956 FOX9014 AC 61 24.4 35
Show 20207+3922 SEI1094 316 27.1 36
Show 20208+3922 BKO 568 249 8.1 37
Show 20208+3919 TDT2196 192 0.4 37
Show 20179+3845 SLE 990 274 8.9 37
Show 20198+3852 SLE1004 166 11.2 38
Show 20144+3920 SEI1039 AB 135 10.7 38
Show 20144+3920 TOB 182 AC 194 43.2 38
Show 20209+3928 HO 127 94 1.9 39
Show 20210+3919 SEI1097 AB 44 27.2 39

 
 
WDS 20177+3921 : COMPONENTS
 
 
  A
B pa=149.3°
sep=25.72"
 
 
20177+3921 A
 
 
Componente originario normalizzato AB Name HD 228789 Coord arcsec 2000 201742.20+392058.4 Mag 10.27
Spectral class B (blue-white) PmRA -4.00 PmDE -5.0 Tycho2 3151-00165-1
HD 228789
Tycho2
Tycho2 3151-00165-1 Pflag RAmdeg 304.42581742 DEmdeg 39.34955907
PmRA -2.8 PmDE -4.8 E RAmdeg 23 E DEmdeg 22
E pmRA 1.2 E pmDE 1.2 EpRAm 1985.76 EpDEm 1986.47
Num 7 Q RAmdeg 0.7 Q DEmdeg 1.3 Q pmRA 0.7
Q pmDE 1.3 BTmag 10.809 E BTmag 0.042 VTmag 10.275
E VTmag 0.037 Prox 278 TYC T HIP
CCDM RAdeg 304.42582361 DEdeg 39.34956861 EpRA 1990 1.54
EpDE 1990 1.57 E RAdeg 26.8 E DEdeg 24.5 Posflg
Corr 0.1
CCDM
Ccdm 20177+3921 RComp Comp A Note1
Note2 Discov num DRAs 0.21 DDEs -0.7
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.9 Sp B PmNote
PmRA PmDE Dm number +38 3993 Cat1 BD
Name2 Cat2 HD 228789 M HD
ADS BDS M ADS BDS N IDS IDS 20141N3902A
HIC
 
 
20177+3921 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 201743.33+392036.3 Mag 11.06 PmRA -4.00
PmDE -5.0 Tycho2 3151-00109-1 Calc delta mag 0.79 Calc coord yes
Tycho2
Tycho2 3151-00109-1 Pflag RAmdeg 304.43188063 DEmdeg 39.34340580
PmRA -6.3 PmDE -3.5 E RAmdeg 33 E DEmdeg 32
E pmRA 1.4 E pmDE 1.4 EpRAm 1980.65 EpDEm 1980.42
Num 7 Q RAmdeg 1.3 Q DEmdeg 2.1 Q pmRA 1.4
Q pmDE 2.0 BTmag 11.637 E BTmag 0.074 VTmag 11.062
E VTmag 0.073 Prox 278 TYC T HIP
CCDM RAdeg 304.43188833 DEdeg 39.34342389 EpRA 1990 1.57
EpDE 1990 1.58 E RAdeg 54.2 E DEdeg 51.7 Posflg
Corr 0.1
CCDM
Ccdm 20177+3921 RComp Comp B Note1
Note2 Discov num SEI1070 DRAs 1.66 DDEs -22.8
R dRAs 65 Year 1896 Theta 143 Rho 28.1
Obs 1 Vmag 11.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20141N3902B
HIC