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Current system
20281+3847
ALI 933


Nearby doubles
18' : 20275+3902
TDT2290

20' : 20296+3856
MLB 775

21' : 20296+3836
SEI1136

21' : 20293+3901
DAM 315

22' : 20276+3926
GUL 3

23' : 20296+3901
ALI 936AB

25' : 20261+3852
MLB1017

26' : 20271+3909
ALI 932

26' : 20287+3911
CBL 83

26' : 20271+3910
TDT2284

26' : 20282+3821
TDT2304

27' : 20300+3832
SMA 117

27' : 20281+3820
SMR 71

30' : 20306+3850
SEI1144

31' : 20304+3833
A 1430

34' : 20252+3846
TDT2255

34' : 20280+3813
ES 2507

34' : 20288+3812
ES 2508

35' : 20302+3823
SEI1141

36' : 20292+3919
SEI1134

36' : 20311+3847
SEI1150

36' : 20311+3854
SEI1149

38' : 20286+3923
TDT2315

38' : 20288+3810
ES 206

38' : 20259+3914
SEI1122

39' : 20290+3924
ALI1144



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

20281+3847 ALI 933

 
 
20h 28m 04.77s +38° 46' 36.7" P.A. 254.00 sep 13.8 mag 12.31,12.60
 
 
Coord 2000 20281+3847 Discov num ALI 933 Comp Coord arcsec 2000 20 28 04.77 +38 46 36.7
Date first 1928 Date last 2015 Obs 9
Pa first 255 Pa last 254.4 P.A. Now (θ) 254.4°
Sep first 13.7 Sep last 13.774 Sep. Now (ρ) 13.774"
Mag pri 12.31 Mag sec 12.60 delta mag (ΔM) 0.29 Spectral class
Pri motion ra +006 Sec motion ra +000
Pri motion dec +002 Sec motion dec +000
Notes
rPM=1
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3152-00559-1 Gaia DR2 2064143209235895040
 
 
WDS 20281+3847 ALI 933 : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Ali1949 Pa - Ali, A. 1949AJ.....54..199A
Ali1949 AJ 54, 199, 1949
Ali1950 Pa - Ali, A. 1950AJ.....55..209A
Ali1950 AJ 55, 208, 1950
Ali1952 Pa - Ali, A. 1952AJ.....57..146A
Ali1952 AJ 57, 146, 1952
Ali1955 Pa - Ali, A. .
Ali1955 Pub. Nizamiah Obs. 13, Pt. 2, 1955
Ali9999 Pa - Ali, A. ...................
Ali9999 +Po Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20281+3847 ALI 933 1998 2 255 13.7 12.31 12.60 D 202804.77+384636.7
20281+3847 ALI 933 2002 3 255 13.7 12.31 12.60 D 202804.77+384636.7
20281+3847 ALI 933 2010 4 255 13.9 12.31 12.60 202804.77+384636.7
20281+3847 ALI 933 2015 5 254 13.8 12.31 12.60 202804.77+384636.7

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

 
 
WDS 20281+3847 ALI 933 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20281+3847 ALI 933 : MEASURES
 
 
No records found.

 
 
WDS 20281+3847 : VIRTUAL EYEPIECE
 
 

20281+3847 ALI 933A mag 12.31 20281+3847 ALI 933B sep 11.0 P.A. 250.30 mag 12.6 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 20281+3847 : ALADIN DSS IMAGE @ 20h 28m 04.77s +38° 46' 36.7"
 
 
 
 
WDS 20281+3847 ALI 933 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20281+3847 ALI 933 distance=0' 20275+3902 TDT2290 distance=18' 20296+3856 MLB 775 distance=20' 20296+3836 SEI1136 distance=21' 20293+3901 DAM 315 distance=21' 20276+3926 GUL 3 distance=22' 20296+3901 ALI 936AB distance=23' 20296+3901 SEI1137AC distance=23' 20261+3852 MLB1017 distance=25' 20271+3909 ALI 932 distance=26' 20287+3911 CBL 83 distance=26' 20271+3910 TDT2284 distance=26' 20282+3821 TDT2304 distance=26' 20300+3832 SMA 117 distance=27' 20281+3820 SMR 71 distance=27' 20306+3850 SEI1144 distance=30' 20304+3833 A 1430 distance=31' 20252+3846 TDT2255 distance=34' 20280+3813 ES 2507 distance=34' 20288+3812 ES 2508 distance=34' 20302+3823 SEI1141 distance=35' 20292+3919 SEI1134 distance=36' 20311+3847 SEI1150 distance=36' 20311+3854 SEI1149 distance=36' 20286+3923 TDT2315 distance=38' 20288+3810 ES 206 distance=38' 20259+3914 SEI1122 distance=38' 20290+3924 ALI1144 distance=39' 20249+3858 COU2418 distance=40' 20314+3833 JNN 284 distance=42' 20297+3808 STF2691 distance=44' 20263+3925 ES 1975 distance=45' 20317+3831 ES 246AB distance=45' 20317+3831 ES 246AC distance=45' 20277+3932 TDT2292 distance=46' 20240+3906 FGS 32 distance=52' 20324+3859 SEI1157 distance=52' 20238+3830 BUP 209AB distance=53' 20238+3830 BUP 209AC distance=53' 20238+3830 BKO 153AD distance=53' 20238+3830 BKO 153BF distance=53' 20238+3830 BKO 153BE distance=53' 20238+3830 BKO 153BG distance=53' 20238+3830 FYM 128BH distance=53' 20238+3830 FYM 128BI distance=53' 20236+3852 TDT2233 distance=54' 20236+3854 TDT2232AB distance=54' 20236+3854 GII 51AC distance=54' 20236+3854 GII 51Aa,Ab distance=54' 20242+3819 SEI1116 distance=54' 20241+3912 SEI1115 distance=54' 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 20281+3847 ALI 933 254 13.8
Show 20275+3902 TDT2290 285 0.8 18
Show 20296+3856 MLB 775 167 10.8 20
Show 20296+3836 SEI1136 259 11.5 21
Show 20293+3901 DAM 315 281 10.3 21
Show 20276+3926 GUL 3 335 0.5 22
Show 20296+3901 ALI 936 AB 77 10.5 23
Show 20296+3901 SEI1137 AC 310 22.0 23
Show 20261+3852 MLB1017 21 3.2 25
Show 20271+3909 ALI 932 194 14.2 26
Show 20287+3911 CBL 83 172 41.8 26
Show 20271+3910 TDT2284 101 1.9 26
Show 20282+3821 TDT2304 199 5.4 26
Show 20300+3832 SMA 117 264 12.4 27
Show 20281+3820 SMR 71 65 8.4 27
Show 20306+3850 SEI1144 177 18.1 30
Show 20304+3833 A 1430 132 3.4 31
Show 20252+3846 TDT2255 321 0.9 34
Show 20280+3813 ES 2507 84 8.2 34
Show 20288+3812 ES 2508 302 6.3 34
Show 20302+3823 SEI1141 175 22.5 35
Show 20292+3919 SEI1134 32 3.8 36
Show 20311+3847 SEI1150 74 21.6 36
Show 20311+3854 SEI1149 203 19.6 36
Show 20286+3923 TDT2315 141 1.5 38
Show 20288+3810 ES 206 124 4.2 38
Show 20259+3914 SEI1122 271 27.6 38
Show 20290+3924 ALI1144 165 11.6 39
Show 20249+3858 COU2418 331 2.0 40
Show 20314+3833 JNN 284 252 0.1 42
Show 20297+3808 STF2691 32 16.3 44
Show 20263+3925 ES 1975 26 4.1 45
Show 20317+3831 ES 246 AB 355 5.1 45
Show 20317+3831 ES 246 AC 354 9.9 45
Show 20277+3932 TDT2292 167 0.5 46
Show 20240+3906 FGS 32 -1 -1.0 52
Show 20324+3859 SEI1157 66 7.6 52
Show 20238+3830 BUP 209 AB 320 38.5 53
Show 20238+3830 BUP 209 AC 296 65.8 53
Show 20238+3830 BKO 153 AD 119 54.6 53
Show 20238+3830 BKO 153 BF 323 16.0 53
Show 20238+3830 BKO 153 BE 264 14.7 53
Show 20238+3830 BKO 153 BG 31 14.6 53
Show 20238+3830 FYM 128 BH 223 10.9 53
Show 20238+3830 FYM 128 BI 57 32.2 53
Show 20236+3852 TDT2233 151 2.4 54
Show 20236+3854 TDT2232 AB 211 1.5 54
Show 20236+3854 GII 51 AC 356 3.2 54
Show 20236+3854 GII 51 Aa,Ab 115 0.1 54
Show 20242+3819 SEI1116 342 30.3 54
Show 20241+3912 SEI1115 181 23.6 54

 
 
WDS 20281+3847 : COMPONENTS
 
 
  A
B pa=250.3°
sep=10.99"
 
 
20281+3847 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 202804.77+384636.7 Mag 12.31 PmRA 6.00
PmDE 2.0 Tycho2 3152-00559-1
Tycho2
Tycho2 3152-00559-1 Pflag RAmdeg 307.01989491 DEmdeg 38.77686206
PmRA 5.6 PmDE -8.0 E RAmdeg 107 E DEmdeg 98
E pmRA 4.5 E pmDE 4.1 EpRAm 1980.88 EpDEm 1980.23
Num 3 Q RAmdeg 0.1 Q DEmdeg 1.1 Q pmRA 0.1
Q pmDE 1.1 BTmag 13.479 E BTmag 0.335 VTmag 12.313
E VTmag 0.184 Prox 999 TYC HIP
CCDM RAdeg 307.01987806 DEdeg 38.77688056 EpRA 1990 1.53
EpDE 1990 1.68 E RAdeg 116.7 E DEdeg 108.5 Posflg
Corr 0.1
CCDM
Ccdm 20281+3847 RComp Comp A Note1
Note2 Discov num DRAs -1.19 DDEs -24.1
R dRAs 65 Year Theta Rho
Obs 2 Vmag 13.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20244N3827A
HIC
 
 
20281+3847 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 202803.89+384633.0 Mag 12.6 PmRA 0.00
PmDE 0.0 Calc delta mag 0.29 Calc coord yes
CCDM
Ccdm 20281+3847 RComp Comp B Note1
Note2 Discov num ALI 933 DRAs -2.31 DDEs -27.5
R dRAs 65 Year 1928 Theta 255 Rho 13.7
Obs 1 Vmag 13.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20244N3827B
HIC