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Current system
21571+3858
SEI 1545


Nearby doubles
17' : 21576+3912
TDT3260

19' : 21586+3900
COU1824

20' : 21556+3849
A 1449

24' : 21591+3900
MLB 789

25' : 21550+3851
TDT3237

29' : 21550+3843
KU 62

31' : 21590+3839
COU1339

36' : 22001+3859
TDT3284

47' : 21599+3930
ALI1168

50' : 21529+3901
SEI1542

50' : 21585+3944
TDT3268

51' : 22011+3915
A 1451AB

52' : 21547+3814
TOK 638AB

52' : 22015+3854
MLB 992

54' : 22011+3832
RAO 471

55' : 21526+3841
MLB 991

58' : 21596+3947
TDT3278

59' : 21520+3857
COU1823

60' : 22019+3919
SEI1550

62' : 21599+3949
GRV 527

65' : 21542+3953
HJ 1703

66' : 21589+3755
A 1450

67' : 21559+3752
ES 2524

67' : 21576+4004
SEI1546

68' : 22016+3816
TDT3296

68' : 21520+3826
HDS3114



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

21571+3858 SEI 1545

 
 
21h 57m 04.33s +38° 57' 20.4" P.A. 324.00 sep 5.8 mag 10.69,11.50
 
 
Coord 2000 21571+3858 Discov num SEI1545 Comp Coord arcsec 2000 21 57 04.33 +38 57 20.4
Date first 1895 Date last 2018 Obs 14
Pa first 324 Pa last 324.4 P.A. Now (θ) 324.4°
Sep first 5.7 Sep last 5.8 Sep. Now (ρ) 5.8"
Mag pri 10.69 Mag sec 11.50 delta mag (ΔM) 0.81 Spectral class
Pri motion ra +027 Sec motion ra +022
Pri motion dec +030 Sec motion dec +029
Notes
rPM=0.126 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3185-00187-1 Gaia DR2 1959075458633053056
 
 
WDS 21571+3858 SEI 1545 : 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
21571+3858 SEI1545 2004 7 325 5.6 10.69 11.50 D 215704.33+385720.4
21571+3858 SEI1545 2010 9 322 4.5 10.69 11.50 215704.33+385720.4
21571+3858 SEI1545 2015 10 324 5.6 10.69 11.50 215704.33+385720.4
21571+3858 SEI1545 2018 13 324 5.8 10.69 11.50 215704.33+385720.4

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

 
 
WDS 21571+3858 SEI 1545 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21571+3858 SEI 1545 : MEASURES
 
 
No records found.

 
 
WDS 21571+3858 : VIRTUAL EYEPIECE
 
 

21571+3858 SEI1545A mag 10.69 21571+3858 SEI1545B sep 5.4 P.A. 330.90 mag 11.5 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 21571+3858 : ALADIN DSS IMAGE @ 21h 57m 04.33s +38° 57' 20.4"
 
 
 
 
WDS 21571+3858 SEI 1545 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21571+3858 SEI1545 distance=0' 21576+3912 TDT3260 distance=17' 21586+3900 COU1824 distance=19' 21556+3849 A 1449 distance=20' 21591+3900 MLB 789 distance=24' 21550+3851 TDT3237 distance=25' 21550+3843 KU 62 distance=29' 21590+3839 COU1339 distance=31' 22001+3859 TDT3284 distance=36' 21599+3930 ALI1168 distance=47' 21529+3901 SEI1542 distance=50' 21585+3944 TDT3268 distance=50' 22011+3915 A 1451AB distance=51' 22011+3915 SEI1549AB,C distance=51' 21547+3814 TOK 638AB distance=52' 22015+3854 MLB 992 distance=52' 22011+3832 RAO 471 distance=54' 21526+3841 MLB 991 distance=55' 21596+3947 TDT3278 distance=58' 21520+3857 COU1823 distance=59' 22019+3919 SEI1550 distance=60' 21599+3949 GRV 527 distance=62' 21542+3953 HJ 1703 distance=65' 21589+3755 A 1450 distance=66' 21559+3752 ES 2524 distance=67' 21576+4004 SEI1546 distance=67' 22016+3816 TDT3296 distance=68' 21520+3826 HDS3114 distance=68' 21595+3959 MLB1023 distance=68' 21590+4001 GMZ 201 distance=68' 21591+4001 MLB1022 distance=68' 21522+3817 TDT3205 distance=70' 22001+4001 MLB1024 distance=74' 21509+3918 MLB 788 distance=75' 21588+3745 ES 2527 distance=76' 21506+3847 MLB 962 distance=77' 22009+3755 TDT3291 distance=77' 22029+3934 STT 459 distance=77' 21513+3938 TDT3196 distance=79' 21512+3941 TDT3192 distance=81' 21569+3735 BKO 905AB distance=83' 21569+3735 BKO 905AC distance=83' 21569+3735 BKO 905AD distance=83' 22040+3841 COU1341 distance=83' 21504+3927 HO 170 distance=83' 22036+3825 ES 2529 distance=83' 22041+3837 TDT3320 distance=85' 21573+3732 ES 2526BC distance=87' 21573+3732 ES 2526AB distance=87' 21573+3732 ABH 155AD distance=87' 21573+3732 ABH 155AE distance=87' 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 21571+3858 SEI1545 324 5.8
Show 21576+3912 TDT3260 304 0.5 17
Show 21586+3900 COU1824 300 0.6 19
Show 21556+3849 A 1449 50 0.3 20
Show 21591+3900 MLB 789 359 9.8 24
Show 21550+3851 TDT3237 115 1.7 25
Show 21550+3843 KU 62 54 1.6 29
Show 21590+3839 COU1339 261 1.4 31
Show 22001+3859 TDT3284 233 1.3 36
Show 21599+3930 ALI1168 206 13.6 47
Show 21529+3901 SEI1542 172 29.7 50
Show 21585+3944 TDT3268 318 0.5 50
Show 22011+3915 A 1451 AB 13 0.2 51
Show 22011+3915 SEI1549 AB,C 22 36.1 51
Show 21547+3814 TOK 638 AB 65 999.9 52
Show 22015+3854 MLB 992 60 6.9 52
Show 22011+3832 RAO 471 330 1.3 54
Show 21526+3841 MLB 991 4.4 55
Show 21596+3947 TDT3278 338 0.4 58
Show 21520+3857 COU1823 13 1.0 59
Show 22019+3919 SEI1550 222 22.9 60
Show 21599+3949 GRV 527 313 58.5 62
Show 21542+3953 HJ 1703 82 8.9 65
Show 21589+3755 A 1450 190 4.1 66
Show 21559+3752 ES 2524 277 6.2 67
Show 21576+4004 SEI1546 212 29.0 67
Show 22016+3816 TDT3296 209 0.6 68
Show 21520+3826 HDS3114 119 0.1 68
Show 21595+3959 MLB1023 236 5.3 68
Show 21590+4001 GMZ 201 114 12.8 68
Show 21591+4001 MLB1022 246 8.1 68
Show 21522+3817 TDT3205 142 0.5 70
Show 22001+4001 MLB1024 222 25.3 74
Show 21509+3918 MLB 788 52 4.9 75
Show 21588+3745 ES 2527 322 8.2 76
Show 21506+3847 MLB 962 322 4.4 77
Show 22009+3755 TDT3291 163 0.5 77
Show 22029+3934 STT 459 195 10.7 77
Show 21513+3938 TDT3196 234 2.1 79
Show 21512+3941 TDT3192 118 0.5 81
Show 21569+3735 BKO 905 AB 316 6.3 83
Show 21569+3735 BKO 905 AC 36 6.8 83
Show 21569+3735 BKO 905 AD 33 17.8 83
Show 22040+3841 COU1341 273 1.6 83
Show 21504+3927 HO 170 256 0.3 83
Show 22036+3825 ES 2529 272 5.0 83
Show 22041+3837 TDT3320 137 0.7 85
Show 21573+3732 ES 2526 BC 183 5.8 87
Show 21573+3732 ES 2526 AB 269 17.9 87
Show 21573+3732 ABH 155 AD 259 99.1 87
Show 21573+3732 ABH 155 AE 307 93.5 87

 
 
WDS 21571+3858 : COMPONENTS
 
 
  A
B pa=330.9°
sep=5.40"
 
 
21571+3858 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 215704.33+385720.4 Mag 10.69 PmRA 27.00
PmDE 30.0 Tycho2 3185-00187-1
Tycho2
Tycho2 3185-00187-1 Pflag RAmdeg 329.26806211 DEmdeg 38.95568948
PmRA 25.8 PmDE 29.6 E RAmdeg 22 E DEmdeg 19
E pmRA 1.9 E pmDE 1.9 EpRAm 1989.77 EpDEm 1990.37
Num 4 Q RAmdeg 2.9 Q DEmdeg 0.4 Q pmRA 2.8
Q pmDE 0.4 BTmag 11.168 E BTmag 0.034 VTmag 10.695
E VTmag 0.033 Prox 999 TYC T HIP
CCDM RAdeg 329.26798333 DEdeg 38.95562083 EpRA 1990 1.48
EpDE 1990 1.66 E RAdeg 21.8 E DEdeg 18.6 Posflg
Corr 0.3
 
 
21571+3858 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215704.10+385725.1 Mag 11.5 PmRA 22.00
PmDE 29.0 Calc delta mag 0.81 Calc coord yes