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Doubles in session


Current system
20449+3908
SEI 1236


Nearby doubles
13' : 20457+3917
SEI1241

15' : 20453+3854
SEI1239

15' : 20445+3921
HJ 1572

18' : 20461+3858
CRB 11

19' : 20435+3919
SEI1229

20' : 20459+3852
COU2294

22' : 20441+3927
ES 1981

24' : 20438+3928
SEI1230

27' : 20433+3847
GRV 371

29' : 20449+3839
ALI 951

29' : 20430+3850
ES 2053

31' : 20471+3850
HJ 1575

31' : 20440+3839
COU2292

32' : 20440+3838
TDT2506

38' : 20480+3917
A 1434AB

38' : 20436+3834
BRT2232

40' : 20450+3827
ALI 947

40' : 20434+3943
TDT2497

43' : 20476+3839
SEI1249

44' : 20478+3840
SEI1251

46' : 20461+3824
ALI 949

46' : 20410+3905
HJ 612AB

47' : 20470+3828
ES 2054

48' : 20427+3947
TDT2491

49' : 20489+3919
TDT2558

51' : 20490+3925
TDT2560



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

20449+3908 SEI 1236

 
 
20h 44m 53.23s +39° 07' 18.1" P.A. 318.00 sep 27.4 mag 11.28,12.18
 
 
Coord 2000 20449+3908 Discov num SEI1236 Comp Coord arcsec 2000 20 44 53.23 +39 07 18.1
Date first 1896 Date last 2015 Obs 12
Pa first 319 Pa last 318.2 P.A. Now (θ) 318.2°
Sep first 27.5 Sep last 27.358 Sep. Now (ρ) 27.358"
Mag pri 11.28 Mag sec 12.18 delta mag (ΔM) 0.9 Spectral class
Pri motion ra -004 Sec motion ra -002
Pri motion dec -007 Sec motion dec -007
Notes
rPM=0.248 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3166-00240-1 Gaia DR2 2063481926020160256
 
 
WDS 20449+3908 SEI 1236 : 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
20449+3908 SEI1236 1998 5 318 27.3 11.28 12.53 D 204453.23+390718.1
20449+3908 SEI1236 2002 6 319 27.2 11.28 12.53 D 204453.23+390718.1
20449+3908 SEI1236 2010 7 318 27.3 11.28 12.18 204453.23+390718.1
20449+3908 SEI1236 2015 8 318 27.4 11.28 12.18 204453.23+390718.1

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

 
 
WDS 20449+3908 SEI 1236 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20449+3908 SEI 1236 : MEASURES
 
 
No records found.

 
 
WDS 20449+3908 : VIRTUAL EYEPIECE
 
 

20449+3908 SEI1236A mag 11.28 20449+3908 SEI1236B sep 24.8 P.A. 325.30 mag 12.18 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 20449+3908 : ALADIN DSS IMAGE @ 20h 44m 53.23s +39° 07' 18.1"
 
 
 
 
WDS 20449+3908 SEI 1236 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20449+3908 SEI1236 distance=1' 20457+3917 SEI1241 distance=13' 20453+3854 SEI1239 distance=15' 20445+3921 HJ 1572 distance=15' 20461+3858 CRB 11 distance=18' 20435+3919 SEI1229 distance=19' 20459+3852 COU2294 distance=20' 20441+3927 ES 1981 distance=22' 20438+3928 SEI1230 distance=24' 20433+3847 GRV 371 distance=27' 20449+3839 ALI 951 distance=29' 20430+3850 ES 2053 distance=29' 20471+3850 HJ 1575 distance=31' 20440+3839 COU2292 distance=31' 20440+3838 TDT2506 distance=32' 20480+3917 A 1434AB distance=38' 20480+3917 A 1434AB,C distance=38' 20436+3834 BRT2232 distance=38' 20450+3827 ALI 947 distance=40' 20434+3943 TDT2497 distance=40' 20476+3839 SEI1249 distance=43' 20478+3840 SEI1251 distance=44' 20461+3824 ALI 949 distance=46' 20410+3905 MCA 62Aa,Ab distance=46' 20410+3905 HJ 612AB distance=46' 20470+3828 ES 2054 distance=47' 20427+3947 TDT2491 distance=48' 20489+3919 TDT2558 distance=49' 20490+3925 TDT2560 distance=51' 20478+3944 GRV 381 distance=51' 20420+3827 AG 263 distance=52' 20493+3923 SEI1263AB distance=54' 20493+3923 ALI 952BC distance=55' 20493+3923 DAM 26BD distance=55' 20434+4001 BRT2272 distance=56' 20416+3950 COU2290 distance=58' 20498+3900 MLB 983 distance=58' 20419+3953 SEI1222 distance=58' 20402+3846 TDT2459 distance=59' 20419+3956 SEI1221 distance=60' 20396+3908 SEI1210 distance=61' 20490+3947 STF2731AB distance=63' 20490+3947 HO 596AC distance=63' 20490+3947 HO 596AD distance=63' 20453+4010 COU2293 distance=63' 20481+3958 CVR 231 distance=64' 20415+3818 TDT2473 distance=64' 20454+4011 TDT2518 distance=65' 20476+3812 SEI1250 distance=65' 20392+3910 MLB 954AB distance=66' 20392+3910 MLB 954AC distance=66' 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 20449+3908 SEI1236 318 27.4 1
Show 20457+3917 SEI1241 309 7.1 13
Show 20453+3854 SEI1239 40 26.8 15
Show 20445+3921 HJ 1572 280 15.6 15
Show 20461+3858 CRB 11 272 10.8 18
Show 20435+3919 SEI1229 156 19.6 19
Show 20459+3852 COU2294 125 0.9 20
Show 20441+3927 ES 1981 310 4.5 22
Show 20438+3928 SEI1230 124 25.3 24
Show 20433+3847 GRV 371 180 65.5 27
Show 20449+3839 ALI 951 49 11.1 29
Show 20430+3850 ES 2053 223 4.5 29
Show 20471+3850 HJ 1575 51 14.9 31
Show 20440+3839 COU2292 240 0.3 31
Show 20440+3838 TDT2506 23 2.9 32
Show 20480+3917 A 1434 AB 178 0.0 38
Show 20480+3917 A 1434 AB,C 256 2.5 38
Show 20436+3834 BRT2232 269 5.8 38
Show 20450+3827 ALI 947 69 6.9 40
Show 20434+3943 TDT2497 317 0.5 40
Show 20476+3839 SEI1249 69 27.8 43
Show 20478+3840 SEI1251 42 15.2 44
Show 20461+3824 ALI 949 313 11.9 46
Show 20410+3905 MCA 62 Aa,Ab 276 0.1 46
Show 20410+3905 HJ 612 AB 9 48.9 46
Show 20470+3828 ES 2054 192 2.7 47
Show 20427+3947 TDT2491 275 1.4 48
Show 20489+3919 TDT2558 191 1.1 49
Show 20490+3925 TDT2560 38 1.1 51
Show 20478+3944 GRV 381 340 35.8 51
Show 20420+3827 AG 263 70 1.6 52
Show 20493+3923 SEI1263 AB 98 23.6 54
Show 20493+3923 ALI 952 BC 50 4.9 55
Show 20493+3923 DAM 26 BD 53 9.5 55
Show 20434+4001 BRT2272 285 5.1 56
Show 20416+3950 COU2290 43 0.5 58
Show 20498+3900 MLB 983 191 3.8 58
Show 20419+3953 SEI1222 77 25.4 58
Show 20402+3846 TDT2459 36 1.4 59
Show 20419+3956 SEI1221 254 2.0 60
Show 20396+3908 SEI1210 303 12.0 61
Show 20490+3947 STF2731 AB 86 4.1 63
Show 20490+3947 HO 596 AC 178 18.0 63
Show 20490+3947 HO 596 AD 247 18.2 63
Show 20453+4010 COU2293 201 1.1 63
Show 20481+3958 CVR 231 359 9.7 64
Show 20415+3818 TDT2473 169 0.6 64
Show 20454+4011 TDT2518 203 0.7 65
Show 20476+3812 SEI1250 18 17.3 65
Show 20392+3910 MLB 954 AB 57 3.1 66
Show 20392+3910 MLB 954 AC 284 109.5 66

 
 
WDS 20449+3908 : COMPONENTS
 
 
  A
B pa=325.3°
sep=24.82"
 
 
20449+3908 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204453.23+390718.1 Mag 11.28 PmRA -4.00
PmDE -7.0 Tycho2 3166-00240-1
Tycho2
Tycho2 3166-00240-1 Pflag RAmdeg 311.22180557 DEmdeg 39.12168608
PmRA -1.7 PmDE -4.8 E RAmdeg 43 E DEmdeg 44
E pmRA 2.7 E pmDE 2.4 EpRAm 1985.58 EpDEm 1984.69
Num 5 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 12.878 E BTmag 0.218 VTmag 11.277
E VTmag 0.076 Prox 275 TYC T HIP
CCDM RAdeg 311.22181389 DEdeg 39.12168667 EpRA 1990 1.71
EpDE 1990 1.73 E RAdeg 57.3 E DEdeg 57.7 Posflg
Corr 0.0
 
 
20449+3908 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204452.01+390738.5 Mag 12.18 PmRA -2.00
PmDE -7.0 Tycho2 3166-00288-1 Calc delta mag 0.9 Calc coord yes
Tycho2
Tycho2 3166-00288-1 Pflag RAmdeg 311.21526184 DEmdeg 39.12737705
PmRA -0.8 PmDE -4.0 E RAmdeg 124 E DEmdeg 115
E pmRA 3.3 E pmDE 3.0 EpRAm 1962.02 EpDEm 1960.20
Num 4 Q RAmdeg 0.6 Q DEmdeg 1.7 Q pmRA 0.6
Q pmDE 1.7 BTmag 12.934 E BTmag 0.224 VTmag 12.530
E VTmag 0.194 Prox 275 TYC HIP
CCDM RAdeg 311.21525806 DEdeg 39.12737750 EpRA 1990 1.70
EpDE 1990 1.73 E RAdeg 159.9 E DEdeg 150.5 Posflg
Corr 0.0