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Current system
20078+3520
SEI 901 AB


Nearby doubles
3' : 20077+3523
BKO 93AB

3' : 20079+3522
ALI 182AB

3' : 20080+3521
SEI 907

8' : 20083+3519
COU2127

11' : 20084+3528
ES 203

12' : 20087+3525
SEI 915

13' : 20086+3529
TDS1046

13' : 20072+3531
SEI 890AB

16' : 20073+3534
ES 2248AB

16' : 20090+3516
SEI 919

16' : 20075+3535
COU2126

17' : 20068+3509
GRV 313

17' : 20089+3531
SEI 917

18' : 20092+3520
ALI 184

19' : 20074+3537
ALI 181

20' : 20062+3520
TDT1981

20' : 20093+3529
STF2639AB

21' : 20062+3523
MZA 38

21' : 20095+3525
TDT2034

23' : 20096+3519
COU2128

24' : 20074+3543
STT 398AB

24' : 20096+3530
SEI 930AB

24' : 20063+3535
SEI 873AB

25' : 20058+3520
SEI 851

25' : 20070+3458
TDT1990

25' : 20096+3532
SEI 931



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.

20078+3520 SEI 901 AB

 
 
20h 07m 47.34s +35° 20' 29.5" P.A. 86.00 sep 15.6 mag 12.10,12.30
 
 
Coord 2000 20078+3520 Discov num SEI 901 Comp AB Coord arcsec 2000 20 07 47.34 +35 20 29.5
Date first 1896 Date last 2015 Obs 11
Pa first 86 Pa last 86.4 P.A. Now (θ) 86.4°
Sep first 15.9 Sep last 15.596 Sep. Now (ρ) 15.596"
Mag pri 12.10 Mag sec 12.30 delta mag (ΔM) 0.2 Spectral class
Pri motion ra -003 Sec motion ra -004
Pri motion dec -003 Sec motion dec -006
Notes
rPM=0.439
Nature of this double is uncertain.
 
 
20078+3520 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 07 47 +35 20 30 SEI 901 AB 2015 11 86 15.6 12.10 12.30 0.20 <===
Show 20 07 49 +35 20 30 BKO 94 BC 2015 8 46 13.5 12.30 15.50 3.20
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2679-01149-1 Gaia DR2 2059001480553512576
 
 
WDS 20078+3520 SEI 901 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bko2002 C - Ladanyi, T. & Berko, E. ...................
Bko2002 Webb Soc., Double Star Circ. 10, 2002
Bko2003 C u Ladanyi, T., Berko, E. & Vaskuti, G ...................
Bko2003 Webb Soc., Double Star Circ. 11, 2003
Bko2004 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2004 Webb Soc., Double Star Circ. 12, 2004
Bko2005 C u Berko, E., Ladanyi, T. & Vaskuti, G ...................
Bko2005 Webb Soc., Double Star Circ. 13, 2005
Bko2008 C u Berko, E. & Vaskuti, G. ...................
Bko2008 Webb Soc., Double Star Circ. 16, 2008
Bko2008b C u Berko, E. 2008JDSO....4..144B
Bko2008b JDSO 4, 144, 2008
Bko2009 C u Berko, E. 2009JDSO....5...49B
Bko2009 JDSO 5, 49, 2009
Bko2009b C u Berko, E. 2009JDSO....5..168B
Bko2009b JDSO 5, 168, 2009
Bko2009c C u Berko, E. ...................
Bko2009c Webb Soc., Double Star Circ. 17, 2009
Bko2009d C u Berko, E. 2009JDSO....5..189B
Bko2009d JDSO 5, 189, 2009
Bko2010a C u Berko, E. 2010JDSO....6...21B
Bko2010a JDSO 6, 21, 2010
Bko2010b C u Berko, E. ...................
Bko2010b Webb Soc., Double Star Circ. 18, 2010
Bko2011a C u Berko, E. 2011JDSO....7....2B
Bko2011a JDSO 7, 2, 2011
Bko2011b C u Berko, E. ...................
Bko2011b Webb Soc., Double Star Circ. 19, 29, 2011 (BKO 898 - BKO 980)
Bko2011c C u Berko, E. ...................
Bko2011c Webb Soc., Double Star Circ. 19, 42, 2011 (BKO 981 - BKO1042)
Bko2012 C u Berko, E. ...................
Bko2012 Webb Soc., Double Star Circ. 20, 2012
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
20078+3520 SEI 901 AB 2002 5 86 15.6 12.10 12.30 D 200747.34+352029.5
20078+3520 SEI 901 AB 2015 7 87 15.6 12.10 12.30 200747.34+352029.5

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

 
 
WDS 20078+3520 SEI 901 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20078+3520 SEI 901 AB : MEASURES
 
 
No records found.

 
 
WDS 20078+3520 : VIRTUAL EYEPIECE
 
 

20078+3520 SEI 901A mag 12.1 20078+3520 BKO 94B sep 15.6 P.A. 86.30 mag 12.3 20078+3520 BKO 94C sep 25.6 P.A. 66.10 mag 15.5 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 20078+3520 : ALADIN DSS IMAGE @ 20h 07m 47.34s +35° 20' 29.5"
 
 
 
 
WDS 20078+3520 SEI 901 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20078+3520 SEI 901AB distance=0' 20078+3520 BKO 94BC distance=1' 20077+3523 BKO 93AB distance=3' 20077+3523 BKO 93AC distance=3' 20079+3522 ALI 182AB distance=3' 20079+3522 BKO 95AC distance=3' 20080+3521 SEI 907 distance=3' 20083+3519 COU2127 distance=8' 20084+3528 ES 203 distance=11' 20087+3525 SEI 915 distance=12' 20086+3529 TDS1046 distance=13' 20072+3531 SEI 890AB distance=13' 20072+3531 BKO 90AC distance=13' 20073+3534 COU2125Aa,Ab distance=16' 20073+3534 ES 2248AB distance=16' 20073+3534 ES 2248AC distance=16' 20073+3534 SEI 893CD distance=16' 20090+3516 SEI 919 distance=16' 20075+3535 COU2126 distance=16' 20068+3509 GRV 313 distance=17' 20089+3531 SEI 917 distance=17' 20092+3520 ALI 184 distance=18' 20074+3537 ALI 181 distance=19' 20062+3520 TDT1981 distance=20' 20093+3529 STF2639AB distance=20' 20093+3529 SEI 923AC distance=20' 20062+3523 MZA 38 distance=21' 20093+3529 SEI 924CD distance=21' 20095+3525 TDT2034 distance=21' 20096+3519 COU2128 distance=23' 20063+3535 BKO 83EF distance=24' 20074+3543 STT 398AB distance=24' 20074+3543 A 280AC distance=24' 20096+3530 BKO 97CD distance=24' 20096+3530 SEI 930AB distance=24' 20096+3530 BKO 97AC distance=24' 20096+3530 BKO 97AE distance=24' 20063+3535 SEI 873AB distance=24' 20063+3535 BKO 83AC distance=24' 20063+3535 BKO 83AE distance=24' 20063+3535 BKO 83AG distance=24' 20063+3535 BKO 83AI distance=24' 20063+3535 TOI1335Aa,Ab distance=24' 20058+3520 SEI 851 distance=25' 20070+3458 TDT1990 distance=25' 20063+3535 BKO 83CD distance=25' 20096+3530 BKO 97EF distance=25' 20096+3532 SEI 931 distance=25' 20063+3535 BKO 83GH distance=25' 20092+3540 SEI 922 distance=26' 20063+3538 SEI 871AB distance=26' 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 20078+3520 SEI 901 AB 86 15.6
Show 20078+3520 BKO 94 BC 46 13.5 1
Show 20077+3523 BKO 93 AB 75 3.5 3
Show 20077+3523 BKO 93 AC 223 6.5 3
Show 20079+3522 ALI 182 AB 358 9.4 3
Show 20079+3522 BKO 95 AC 36 7.5 3
Show 20080+3521 SEI 907 204 21.2 3
Show 20083+3519 COU2127 227 0.2 8
Show 20084+3528 ES 203 130 6.1 11
Show 20087+3525 SEI 915 230 29.0 12
Show 20086+3529 TDS1046 341 1.2 13
Show 20072+3531 SEI 890 AB 94 15.3 13
Show 20072+3531 BKO 90 AC 52 13.8 13
Show 20073+3534 COU2125 Aa,Ab 69 0.1 16
Show 20073+3534 ES 2248 AB 30 5.9 16
Show 20073+3534 ES 2248 AC 222 50.6 16
Show 20073+3534 SEI 893 CD 119 27.4 16
Show 20090+3516 SEI 919 118 5.5 16
Show 20075+3535 COU2126 158 0.7 16
Show 20068+3509 GRV 313 305 29.1 17
Show 20089+3531 SEI 917 338 28.4 17
Show 20092+3520 ALI 184 228 13.2 18
Show 20074+3537 ALI 181 219 14.6 19
Show 20062+3520 TDT1981 3 0.5 20
Show 20093+3529 STF2639 AB 301 5.8 20
Show 20093+3529 SEI 923 AC 93 37.4 20
Show 20062+3523 MZA 38 145 1.1 21
Show 20093+3529 SEI 924 CD 207 27.8 21
Show 20095+3525 TDT2034 120 0.3 21
Show 20096+3519 COU2128 243 2.1 23
Show 20063+3535 BKO 83 EF 228 7.5 24
Show 20074+3543 STT 398 AB 82 1.0 24
Show 20074+3543 A 280 AC 133 5.7 24
Show 20096+3530 BKO 97 CD 11 8.7 24
Show 20096+3530 SEI 930 AB 101 22.5 24
Show 20096+3530 BKO 97 AC 178 24.1 24
Show 20096+3530 BKO 97 AE 107 70.4 24
Show 20063+3535 SEI 873 AB 335 9.1 24
Show 20063+3535 BKO 83 AC 285 43.5 24
Show 20063+3535 BKO 83 AE 151 52.0 24
Show 20063+3535 BKO 83 AG 240 136.8 24
Show 20063+3535 BKO 83 AI 257 87.2 24
Show 20063+3535 TOI1335 Aa,Ab 304 0.1 24
Show 20058+3520 SEI 851 161 27.2 25
Show 20070+3458 TDT1990 154 1.3 25
Show 20063+3535 BKO 83 CD 119 6.6 25
Show 20096+3530 BKO 97 EF 312 8.3 25
Show 20096+3532 SEI 931 81 16.0 25
Show 20063+3535 BKO 83 GH 227 3.4 25
Show 20092+3540 SEI 922 215 18.5 26
Show 20063+3538 SEI 871 AB 172 11.5 26

 
 
WDS 20078+3520 : COMPONENTS
 
 
  A B
B pa=86.3°
sep=15.57"
 
C pa=66.1°
sep=25.61"
pa=40.0°
sep=12.25"
 
 
20078+3520 A
 
 
Coord arcsec 2000 200747.34+352029.5 Mag 12.1 PmRA -3.00 PmDE -3.0
Tycho2 2679-01149-1
Tycho2
Tycho2 2679-01149-1 Pflag RAmdeg 301.94726777 DEmdeg 35.34153762
PmRA -2.6 PmDE -4.0 E RAmdeg 84 E DEmdeg 78
E pmRA 2.3 E pmDE 2.1 EpRAm 1966.02 EpDEm 1969.17
Num 6 Q RAmdeg 0.8 Q DEmdeg 1.5 Q pmRA 0.7
Q pmDE 1.6 BTmag 12.401 E BTmag 0.184 VTmag 12.097
E VTmag 0.185 Prox 999 TYC HIP
CCDM RAdeg 301.94727389 DEdeg 35.34155250 EpRA 1990 1.57
EpDE 1990 1.72 E RAdeg 104.9 E DEdeg 92.8 Posflg
Corr 0.0
CCDM
Ccdm 20078+3520 RComp Comp A Note1
Note2 Discov num DRAs -0.61 DDEs 29.6
R dRAs 65 Year Theta Rho
Obs 2 Vmag 10.8 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20040N3503A
HIC
 
 
20078+3520 B
 
 
Coord arcsec 2000 200748.61+352030.5 Coord calc 200748.61+352030.5 Mag 12.3 PmRA -4.00
PmDE -6.0 Calc delta mag 0.2
CCDM
Ccdm 20078+3520 RComp Comp B Note1
Note2 Discov num SEI 901 DRAs 0.65 DDEs 30.0
R dRAs 65 Year 1896 Theta 087 Rho 15.9
Obs 1 Vmag 11.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20040N3503B
HIC
 
 
20078+3520 C
 
 
Coord arcsec 2000 200749.25+352039.9 Mag 15.5 Calc delta mag 3.4 Calc coord yes