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Current system
20507+3807
SEI 1275


Nearby doubles
20' : 20521+3758
RAO 442

21' : 20518+3820
ES 2123AB

23' : 20525+3759
ES 2516

26' : 20526+3756
SEI1289

27' : 20488+3754
TDT2557

28' : 20498+3833
HJ 1582AB

28' : 20506+3740
SKF1925

31' : 20511+3837
SEI1281

31' : 20529+3752
TDT2600

36' : 20476+3812
SEI1250

43' : 20533+3740
SEI1294

43' : 20540+3751
TDT2614

44' : 20470+3806
TDT2534

47' : 20527+3728
SEI1288

47' : 20478+3840
SEI1251

47' : 20509+3855
SEI1278

48' : 20476+3839
SEI1249

48' : 20524+3724
SEI1287

49' : 20470+3828
ES 2054

49' : 20533+3731
TDT2606

49' : 20549+3803
SEI1309AB

51' : 20530+3851
ALI 954

52' : 20510+3717
SEI1277

52' : 20515+3717
SEI1282

53' : 20498+3900
MLB 983

55' : 20552+3755
SEI1312



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

20507+3807 SEI 1275

 
 
20h 50m 41.97s +38° 08' 03.0" P.A. 196.00 sep 22.2 mag 12.13,11.36
 
 
Coord 2000 20507+3807 Discov num SEI1275 Comp Coord arcsec 2000 20 50 41.97 +38 08 03.0
Date first 1896 Date last 2015 Obs 13
Pa first 194 Pa last 196.3 P.A. Now (θ) 196.3°
Sep first 22.8 Sep last 22.177 Sep. Now (ρ) 22.177"
Mag pri 12.13 Mag sec 11.36 delta mag (ΔM) 0.77 Spectral class
Pri motion ra -005 Sec motion ra -011
Pri motion dec -005 Sec motion dec +007
Notes
rPM=1.029
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3167-00294-1 Gaia DR2 1871169680101954944
 
 
WDS 20507+3807 SEI 1275 : 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
20507+3807 SEI1275 1998 7 197 22.3 12.45 11.36 D 205041.97+380803.0
20507+3807 SEI1275 2002 8 196 22.3 12.45 11.36 D 205041.97+380803.0
20507+3807 SEI1275 2010 9 197 22.2 12.13 11.36 205041.97+380803.0
20507+3807 SEI1275 2015 10 196 22.2 12.13 11.36 205041.97+380803.0

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

 
 
WDS 20507+3807 SEI 1275 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20507+3807 SEI 1275 : MEASURES
 
 
No records found.

 
 
WDS 20507+3807 : VIRTUAL EYEPIECE
 
 

20507+3807 SEI1275A mag 12.13 20507+3807 SEI1275B sep 21.8 P.A. 193.00 mag 11.36 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20507+3807 : ALADIN DSS IMAGE @ 20h 50m 41.97s +38° 08' 03.0"
 
 
 
 
WDS 20507+3807 SEI 1275 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20507+3807 SEI1275 distance=0' 20521+3758 RAO 442 distance=20' 20518+3820 ES 2123AB distance=21' 20518+3820 ES 2123AC distance=21' 20525+3759 ES 2516 distance=23' 20526+3756 SEI1289 distance=26' 20488+3754 TDT2557 distance=27' 20498+3833 HJ 1582AB distance=28' 20498+3833 HJ 1582AC distance=28' 20506+3740 SKF1925 distance=28' 20511+3837 SEI1281 distance=31' 20529+3752 TDT2600 distance=31' 20476+3812 SEI1250 distance=36' 20533+3740 SEI1294 distance=43' 20540+3751 TDT2614 distance=43' 20470+3806 TDT2534 distance=44' 20527+3728 SEI1288 distance=47' 20478+3840 SEI1251 distance=47' 20509+3855 SEI1278 distance=47' 20476+3839 SEI1249 distance=48' 20524+3724 SEI1287 distance=48' 20470+3828 ES 2054 distance=49' 20533+3731 TDT2606 distance=49' 20549+3803 TDT2626Aa,Ab distance=49' 20549+3803 SEI1309AB distance=49' 20530+3851 ALI 954 distance=51' 20510+3717 SEI1277 distance=52' 20515+3717 SEI1282 distance=52' 20498+3900 MLB 983 distance=53' 20552+3755 SEI1312 distance=55' 20501+3714 SEI1268AB distance=55' 20501+3714 CLL 15AC distance=55' 20464+3747 SEI1244 distance=56' 20472+3730 J 1210 distance=57' 20461+3824 ALI 949 distance=58' 20556+3809 COU2222Aa,Ab distance=58' 20556+3809 SEI1317AB distance=58' 20538+3723 SEI1299AB distance=58' 20538+3723 SEI1301AC distance=58' 20468+3730 ALI 674 distance=59' 20471+3850 HJ 1575 distance=61' 20519+3911 SEI1283 distance=64' 20510+3915 SEI1279BC distance=68' 20510+3915 SEI1279AB distance=68' 20450+3827 ALI 947 distance=70' 20546+3900 SEI1308 distance=70' 20459+3852 COU2294 distance=72' 20547+3714 TDT2625 distance=73' 20461+3858 CRB 11 distance=74' 20569+3818 KPP1144 distance=74' 20521+3657 SEI1285 distance=74' 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 20507+3807 SEI1275 196 22.2
Show 20521+3758 RAO 442 81 2.6 20
Show 20518+3820 ES 2123 AB 102 5.2 21
Show 20518+3820 ES 2123 AC 327 37.4 21
Show 20525+3759 ES 2516 216 6.3 23
Show 20526+3756 SEI1289 240 25.3 26
Show 20488+3754 TDT2557 237 0.7 27
Show 20498+3833 HJ 1582 AB 45 17.4 28
Show 20498+3833 HJ 1582 AC 327 28.7 28
Show 20506+3740 SKF1925 170 13.8 28
Show 20511+3837 SEI1281 102 8.6 31
Show 20529+3752 TDT2600 43 0.5 31
Show 20476+3812 SEI1250 18 17.3 36
Show 20533+3740 SEI1294 26 23.1 43
Show 20540+3751 TDT2614 350 0.6 43
Show 20470+3806 TDT2534 138 0.6 44
Show 20527+3728 SEI1288 259 24.2 47
Show 20478+3840 SEI1251 42 15.2 47
Show 20509+3855 SEI1278 135 25.5 47
Show 20476+3839 SEI1249 69 27.8 48
Show 20524+3724 SEI1287 353 6.7 48
Show 20470+3828 ES 2054 192 2.7 49
Show 20533+3731 TDT2606 65 4.4 49
Show 20549+3803 TDT2626 Aa,Ab 20 0.7 49
Show 20549+3803 SEI1309 AB 120 6.5 49
Show 20530+3851 ALI 954 61 8.9 51
Show 20510+3717 SEI1277 32 8.1 52
Show 20515+3717 SEI1282 270 27.4 52
Show 20498+3900 MLB 983 191 3.8 53
Show 20552+3755 SEI1312 285 8.2 55
Show 20501+3714 SEI1268 AB 123 27.3 55
Show 20501+3714 CLL 15 AC 20 48.5 55
Show 20464+3747 SEI1244 149 22.5 56
Show 20472+3730 J 1210 247 3.9 57
Show 20461+3824 ALI 949 313 11.9 58
Show 20556+3809 COU2222 Aa,Ab 109 0.7 58
Show 20556+3809 SEI1317 AB 171 22.7 58
Show 20538+3723 SEI1299 AB 356 9.0 58
Show 20538+3723 SEI1301 AC 290 26.3 58
Show 20468+3730 ALI 674 328 13.0 59
Show 20471+3850 HJ 1575 51 14.9 61
Show 20519+3911 SEI1283 1 22.8 64
Show 20510+3915 SEI1279 BC 189 7.3 68
Show 20510+3915 SEI1279 AB 147 12.9 68
Show 20450+3827 ALI 947 69 6.9 70
Show 20546+3900 SEI1308 93 6.0 70
Show 20459+3852 COU2294 125 0.9 72
Show 20547+3714 TDT2625 255 0.5 73
Show 20461+3858 CRB 11 272 10.8 74
Show 20569+3818 KPP1144 248 8.9 74
Show 20521+3657 SEI1285 301 27.6 74

 
 
WDS 20507+3807 : COMPONENTS
 
 
  A
B pa=193.0°
sep=21.84"
 
 
20507+3807 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205041.97+380803.0 Mag 12.13 PmRA -5.00
PmDE -5.0 Tycho2 3167-00294-1
Tycho2
Tycho2 3167-00294-1 Pflag RAmdeg 312.67487015 DEmdeg 38.13416550
PmRA -1.2 PmDE -3.7 E RAmdeg 83 E DEmdeg 76
E pmRA 2.3 E pmDE 2.2 EpRAm 1973.35 EpDEm 1973.78
Num 4 Q RAmdeg 0.5 Q DEmdeg 0.4 Q pmRA 0.5
Q pmDE 0.4 BTmag 12.451 E BTmag 0.174 VTmag 12.454
E VTmag 0.205 Prox 225 TYC HIP
CCDM RAdeg 312.67487194 DEdeg 38.13417361 EpRA 1990 1.56
EpDE 1990 1.75 E RAdeg 93.2 E DEdeg 85.7 Posflg
Corr 0.0
 
 
20507+3807 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205041.56+380741.7 Mag 11.36 PmRA -11.00
PmDE 7.0 Tycho2 3167-00562-1 Calc delta mag 0.77 Calc coord yes
Tycho2
Tycho2 3167-00562-1 Pflag RAmdeg 312.67267590 DEmdeg 38.12818678
PmRA -7.2 PmDE 5.0 E RAmdeg 40 E DEmdeg 35
E pmRA 2.1 E pmDE 1.9 EpRAm 1982.65 EpDEm 1983.22
Num 6 Q RAmdeg 0.9 Q DEmdeg 0.8 Q pmRA 0.9
Q pmDE 0.8 BTmag 12.504 E BTmag 0.182 VTmag 11.360
E VTmag 0.085 Prox 225 TYC HIP
CCDM RAdeg 312.67270028 DEdeg 38.12817306 EpRA 1990 1.53
EpDE 1990 1.73 E RAdeg 65.5 E DEdeg 58.7 Posflg
Corr 0.0