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Doubles in session


Current system
20021+3135
SEI 798


Nearby doubles
6' : 20019+3139
AG 245

9' : 20021+3144
SEI 799

10' : 20026+3127
TDT1930

11' : 20028+3142
ES 358

12' : 20026+3125
DAM 643

17' : 20017+3119
GRV 307

19' : 20007+3130
BRT 273

19' : 20022+3154
SEI 802

23' : 20037+3145
SEI 827

24' : 20040+3136
TDS1038

25' : 20028+3158
ES 359AB

27' : 20032+3112
BRT 275

29' : 20021+3204
BRT 274

31' : 19597+3140
SEI 773

32' : 20040+3152
BRT 276

32' : 20014+3206
COU1472

32' : 20039+3113
TDT1946

35' : 19597+3150
BU 1133

39' : 20020+3213
TDS1034

40' : 20037+3209
COU1628

40' : 19591+3128
SEI 758

41' : 20007+3211
TDT1911AB

43' : 19588+3138
SEI 756

45' : 20013+3052
TDT1916

45' : 20035+3216
COU1627

48' : 19594+3206
A 378



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Binary Systems
Triple Systems
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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20021+3135 SEI 798

 
 
20h 02m 07.38s +31° 34' 57.0" P.A. 214.00 sep 24.3 mag 12.14,12.09
 
 
Coord 2000 20021+3135 Discov num SEI 798 Comp Coord arcsec 2000 20 02 07.38 +31 34 57.0
Date first 1893 Date last 2015 Obs 12
Pa first 214 Pa last 213.6 P.A. Now (θ) 213.6°
Sep first 24.4 Sep last 24.273 Sep. Now (ρ) 24.273"
Mag pri 12.14 Mag sec 12.09 delta mag (ΔM) 0.05 Spectral class
Pri motion ra +001 Sec motion ra +000
Pri motion dec -003 Sec motion dec +001
Notes
rPM=1.304
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2670-00254-1 Gaia DR2 2030908958462930688
 
 
WDS 20021+3135 SEI 798 : 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
20021+3135 SEI 798 1998 5 214 24.3 11.98 11.98 D 200207.38+313457.0
20021+3135 SEI 798 2002 6 214 24.3 11.98 11.98 D 200207.38+313457.0
20021+3135 SEI 798 2010 7 214 24.3 12.14 12.09 200207.38+313457.0
20021+3135 SEI 798 2015 8 214 24.3 12.14 12.09 200207.38+313457.0

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

 
 
WDS 20021+3135 SEI 798 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20021+3135 SEI 798 : MEASURES
 
 
No records found.

 
 
WDS 20021+3135 : VIRTUAL EYEPIECE
 
 

20021+3135 SEI 798A mag 12.14 20021+3135 SEI 798B sep 23.2 P.A. 209.50 mag 12.09 virtual eyepiece
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Radius:
Components only
 
 
WDS 20021+3135 : ALADIN DSS IMAGE @ 20h 02m 07.38s +31° 34' 57.0"
 
 
 
 
WDS 20021+3135 SEI 798 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20021+3135 SEI 798 distance=0' 20019+3139 AG 245 distance=6' 20021+3144 SEI 799 distance=9' 20026+3127 TDT1930 distance=10' 20028+3142 ES 358 distance=11' 20026+3125 DAM 643 distance=12' 20017+3119 GRV 307 distance=17' 20007+3130 BRT 273 distance=19' 20022+3154 SEI 802 distance=19' 20037+3145 SEI 827 distance=23' 20040+3136 TDS1038 distance=24' 20028+3158 ES 359BC distance=25' 20028+3158 ES 359AB distance=25' 20032+3112 BRT 275 distance=27' 20021+3204 BRT 274 distance=29' 19597+3140 SEI 773 distance=31' 20040+3152 BRT 276 distance=32' 20014+3206 COU1472 distance=32' 20039+3113 TDT1946 distance=32' 19597+3150 BU 1133 distance=35' 20020+3213 TDS1034 distance=39' 20037+3209 COU1628 distance=40' 19591+3128 SEI 758 distance=40' 20007+3211 TDT1911AB distance=41' 20007+3211 SCA 181AB,C distance=41' 19588+3138 SEI 756 distance=43' 20013+3052 TDT1916 distance=45' 20035+3216 COU1627 distance=45' 19594+3206 A 378 distance=48' 19589+3158 SEI 757 distance=48' 20036+3220 A 380 distance=49' 20046+3213 HJ 1471 distance=50' 20044+3055 GRV 309 distance=50' 19583+3147 KU 126 distance=51' 19597+3055 A 379 distance=51' 19598+3219 TDT1905 distance=53' 19580+3145 TDT1884 distance=54' 20059+3157 SEI 852 distance=55' 20063+3148 COU1322 distance=55' 20064+3147 GYL 31 distance=57' 20045+3047 TDT1951 distance=57' 19593+3219 HJ 1461 distance=58' 19586+3059 YR 15 distance=58' 20016+3233 TDT1920 distance=59' 20007+3232 ES 2430AB distance=60' 20007+3232 ES 2430AC distance=60' 20007+3232 DAM 313CD distance=60' 20042+3230 TDS1039 distance=61' 19585+3217 RAO 424AB distance=64' 19585+3217 RAO 424AC distance=64' 20069+3115 SEI 882AB distance=64' 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 20021+3135 SEI 798 214 24.3
Show 20019+3139 AG 245 21 16.7 6
Show 20021+3144 SEI 799 51 12.7 9
Show 20026+3127 TDT1930 120 0.7 10
Show 20028+3142 ES 358 200 8.0 11
Show 20026+3125 DAM 643 175 6.8 12
Show 20017+3119 GRV 307 138 45.7 17
Show 20007+3130 BRT 273 76 4.3 19
Show 20022+3154 SEI 802 312 20.0 19
Show 20037+3145 SEI 827 18 9.4 23
Show 20040+3136 TDS1038 33 1.6 24
Show 20028+3158 ES 359 BC 68 6.1 25
Show 20028+3158 ES 359 AB 135 30.5 25
Show 20032+3112 BRT 275 31 4.2 27
Show 20021+3204 BRT 274 7 4.7 29
Show 19597+3140 SEI 773 258 17.4 31
Show 20040+3152 BRT 276 17 3.7 32
Show 20014+3206 COU1472 190 1.2 32
Show 20039+3113 TDT1946 287 0.4 32
Show 19597+3150 BU 1133 344 1.1 35
Show 20020+3213 TDS1034 74 1.0 39
Show 20037+3209 COU1628 345 1.1 40
Show 19591+3128 SEI 758 159 23.1 40
Show 20007+3211 TDT1911 AB 52 0.6 41
Show 20007+3211 SCA 181 AB,C 92 3.6 41
Show 19588+3138 SEI 756 335 17.8 43
Show 20013+3052 TDT1916 133 0.7 45
Show 20035+3216 COU1627 47 1.2 45
Show 19594+3206 A 378 294 1.0 48
Show 19589+3158 SEI 757 192 15.7 48
Show 20036+3220 A 380 202 0.4 49
Show 20046+3213 HJ 1471 9 32.9 50
Show 20044+3055 GRV 309 328 34.1 50
Show 19583+3147 KU 126 13 53.1 51
Show 19597+3055 A 379 227 2.6 51
Show 19598+3219 TDT1905 212 5.2 53
Show 19580+3145 TDT1884 122 0.5 54
Show 20059+3157 SEI 852 255 44.8 55
Show 20063+3148 COU1322 106 0.2 55
Show 20064+3147 GYL 31 180 68.2 57
Show 20045+3047 TDT1951 59 0.6 57
Show 19593+3219 HJ 1461 153 11.4 58
Show 19586+3059 YR 15 8 0.2 58
Show 20016+3233 TDT1920 154 0.7 59
Show 20007+3232 ES 2430 AB 265 6.5 60
Show 20007+3232 ES 2430 AC 39 17.1 60
Show 20007+3232 DAM 313 CD 298 3.8 60
Show 20042+3230 TDS1039 112 1.4 61
Show 19585+3217 RAO 424 AB 58 2.3 64
Show 19585+3217 RAO 424 AC 343 4.0 64
Show 20069+3115 SEI 882 AB 60 33.9 64

 
 
WDS 20021+3135 : COMPONENTS
 
 
  A
B pa=209.5°
sep=23.23"
 
 
20021+3135 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 200207.38+313457.0 Mag 12.14 PmRA 1.00
PmDE -3.0
 
 
20021+3135 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200206.48+313436.8 Mag 12.09 PmRA 0.00
PmDE 1.0 Tycho2 2670-00254-1 Calc delta mag 0.05 Calc coord yes
Tycho2
Tycho2 2670-00254-1 Pflag RAmdeg 300.53074043 DEmdeg 31.58248670
PmRA 0.1 PmDE -2.9 E RAmdeg 129 E DEmdeg 122
E pmRA 3.0 E pmDE 2.8 EpRAm 1949.76 EpDEm 1950.22
Num 4 Q RAmdeg 1.6 Q DEmdeg 0.5 Q pmRA 1.5
Q pmDE 0.5 BTmag 12.389 E BTmag 0.180 VTmag 11.977
E VTmag 0.175 Prox 241 TYC HIP
CCDM RAdeg 300.53071500 DEdeg 31.58249861 EpRA 1990 1.57
EpDE 1990 1.65 E RAdeg 182.5 E DEdeg 173.2 Posflg
Corr 0.2