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Current system
21581+5635
HJ 1709
HD 208948


Nearby doubles
20' : 21583+5616
A 1898

23' : 21591+5656
ES 1801

35' : 22016+5654
TDT3295

35' : 21554+5608
OSO 163AB

39' : 21568+5558
A 1897

40' : 21571+5556
STI2601

53' : 22032+5708
FMR 166

54' : 21532+5601
KPP 630

56' : 22047+5649
MLB 94

61' : 21550+5540
STI2600

61' : 21510+5621
KR 55AB

62' : 21536+5724
TDT3219

65' : 22045+5711
STI2610AB

68' : 22055+5606
STI2613

69' : 22050+5557
RAO 473

70' : 21520+5548
STF2840AB

70' : 22057+5708
STI2618

72' : 22056+5711
BAR 57AB

77' : 21562+5750
TDT3248

78' : 22075+5631
HDS3141

81' : 21572+5515
CRB 211

82' : 21518+5534
HDS3113

82' : 22080+5635
HDS3144

85' : 21590+5511
STI2604

86' : 21479+5649
STI2591

90' : 22008+5802
STI2606



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.

21581+5635 HJ 1709 (HD 208948)

 
 
21h 58m 07.78s +56° 34' 59.8" P.A. 315.00 sep 8.8 mag 8.88,12.00 Sp A3
 
 
Coord 2000 21581+5635 Discov num HJ 1709 Comp Coord arcsec 2000 21 58 07.78 +56 34 59.8
Date first 1900 Date last 2015 Obs 13
Pa first 317 Pa last 314.8 P.A. Now (θ) 314.8°
Sep first 9.2 Sep last 8.796 Sep. Now (ρ) 8.796"
Mag pri 8.88 Mag sec 12.00 delta mag (ΔM) 3.12 Spectral class A3 (white)
Pri motion ra +010 Sec motion ra +007
Pri motion dec +003 Sec motion dec +005
Notes
rPM=0.345
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 208948 Constellation Cepheus SAO 33924 Tycho2 3976-01069-1
Gaia DR2 2198925368966814592 HD 208948
 
 
WDS 21581+5635 HJ 1709 (HD 208948) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21581+5635 HJ 1709 1999 8 315 8.7 8.88 12.00 A3 D 215807.78+563459.8
21581+5635 HJ 1709 2003 9 315 8.9 8.88 12.00 A3 D 215807.78+563459.8
21581+5635 HJ 1709 2015 10 315 8.8 8.88 12.00 A3 215807.78+563459.8

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

 
 
WDS 21581+5635 HJ 1709 (HD 208948) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21581+5635 HJ 1709 (HD 208948) : MEASURES
 
 
No records found.

 
 
WDS 21581+5635 (HD 208948) : VIRTUAL EYEPIECE
 
 

21581+5635 HJ 1709A mag 8.88 Sp A3 21581+5635 HJ 1709B sep 7.1 P.A. 331.00 mag 12 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 21581+5635 (HD 208948) : ALADIN DSS IMAGE @ 21h 58m 07.78s +56° 34' 59.8"
 
 
 
 
WDS 21581+5635 HJ 1709 (HD 208948) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21581+5635 HJ 1709 distance=0' 21583+5616 A 1898 distance=20' 21591+5656 ES 1801 distance=23' 22016+5654 TDT3295 distance=35' 21554+5608 OSO 163AB distance=35' 21554+5608 OSO 163AC distance=35' 21568+5558 A 1897 distance=39' 21571+5556 STI2601 distance=40' 22032+5708 FMR 166 distance=53' 21532+5601 KPP 630 distance=54' 22047+5649 MLB 94 distance=56' 21550+5540 STI2600 distance=61' 21510+5621 KR 55AB distance=61' 21510+5621 KR 55AC distance=61' 21536+5724 TDT3219 distance=62' 22045+5711 STI2610AB distance=65' 22045+5711 MRI 5AC distance=65' 22055+5606 STI2613 distance=68' 22050+5557 RAO 473 distance=69' 21520+5548 STF2840AB distance=70' 21520+5548 STF2840AC distance=70' 22057+5708 STI2618 distance=70' 22056+5711 BAR 57AB distance=72' 22056+5711 BAR 57AC distance=72' 21562+5750 TDT3248 distance=77' 22075+5631 HDS3141 distance=78' 21572+5515 CRB 211 distance=81' 21518+5534 HDS3113 distance=82' 22080+5635 HDS3144 distance=82' 21590+5511 STI2604 distance=85' 21479+5649 STI2591 distance=86' 22008+5802 STI2606 distance=90' 22057+5531 STI2615 distance=90' 21568+5506 TDT3252 distance=91' 21484+5719 STI2592 distance=91' 22021+5800 TRN 34 distance=91' 21484+5721 MLB 143 distance=92' 22029+5512 STI2608AB distance=93' 21495+5736 TDT3179 distance=93' 22026+5509 TDT3303 distance=94' 21548+5805 TDT3233 distance=95' 22019+5506 HJ 1718CD distance=95' 22019+5506 HJ 1718AB distance=96' 22019+5506 ABH 157AE distance=96' 22019+5506 ABH 157AF distance=96' 22019+5506 ABH 157AG distance=96' 22019+5506 ABH 157AH distance=96' 22019+5506 ABH 157AI distance=96' 22019+5506 ABH 157AJ distance=96' 22019+5506 ABH 157AK distance=96' 22019+5506 ABH 157AL distance=96' 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 21581+5635 HJ 1709 315 8.8
Show 21583+5616 A 1898 223 1.2 20
Show 21591+5656 ES 1801 102 5.8 23
Show 22016+5654 TDT3295 42 0.2 35
Show 21554+5608 OSO 163 AB 150 9.2 35
Show 21554+5608 OSO 163 AC 339 17.0 35
Show 21568+5558 A 1897 75 1.0 39
Show 21571+5556 STI2601 58 14.1 40
Show 22032+5708 FMR 166 95 10.4 53
Show 21532+5601 KPP 630 178 5.8 54
Show 22047+5649 MLB 94 305 5.9 56
Show 21550+5540 STI2600 109 4.2 61
Show 21510+5621 KR 55 AB 355 4.7 61
Show 21510+5621 KR 55 AC 20 16.1 61
Show 21536+5724 TDT3219 114 1.8 62
Show 22045+5711 STI2610 AB 133 12.7 65
Show 22045+5711 MRI 5 AC 338 6.4 65
Show 22055+5606 STI2613 171 8.5 68
Show 22050+5557 RAO 473 293 0.2 69
Show 21520+5548 STF2840 AB 197 18.1 70
Show 21520+5548 STF2840 AC 345 54.9 70
Show 22057+5708 STI2618 78 9.8 70
Show 22056+5711 BAR 57 AB 275 1.0 72
Show 22056+5711 BAR 57 AC 92 46.6 72
Show 21562+5750 TDT3248 339 0.9 77
Show 22075+5631 HDS3141 334 0.5 78
Show 21572+5515 CRB 211 5 13.2 81
Show 21518+5534 HDS3113 217 0.4 82
Show 22080+5635 HDS3144 33 0.2 82
Show 21590+5511 STI2604 6 11.6 85
Show 21479+5649 STI2591 98 5.2 86
Show 22008+5802 STI2606 127 9.2 90
Show 22057+5531 STI2615 249 10.2 90
Show 21568+5506 TDT3252 18 2.1 91
Show 21484+5719 STI2592 66 10.4 91
Show 22021+5800 TRN 34 358 2.8 91
Show 21484+5721 MLB 143 356 1.9 92
Show 22029+5512 STI2608 AB 41 7.2 93
Show 21495+5736 TDT3179 74 1.7 93
Show 22026+5509 TDT3303 259 2.1 94
Show 21548+5805 TDT3233 278 0.5 95
Show 22019+5506 HJ 1718 CD 84 5.0 95
Show 22019+5506 HJ 1718 AB 219 9.3 96
Show 22019+5506 ABH 157 AE 144 31.1 96
Show 22019+5506 ABH 157 AF 96 14.7 96
Show 22019+5506 ABH 157 AG 348 38.7 96
Show 22019+5506 ABH 157 AH 322 32.8 96
Show 22019+5506 ABH 157 AI 281 30.8 96
Show 22019+5506 ABH 157 AJ 239 47.9 96
Show 22019+5506 ABH 157 AK 226 40.7 96
Show 22019+5506 ABH 157 AL 146 66.5 96

 
 
WDS 21581+5635 : COMPONENTS
 
 
  A
B pa=331.0°
sep=7.09"
 
 
21581+5635 A
 
 
Componente originario normalizzato AB Name HD 208948 Coord arcsec 2000 215807.78+563459.8 Mag 8.88
Spectral class A3 (white) PmRA 10.00 PmDE 3.0 SAO 33924
Tycho2 3976-01069-1 HD 208948 DM BD+55 2657
Tycho2
Tycho2 3976-01069-1 Pflag RAmdeg 329.53240236 DEmdeg 56.58328438
PmRA 12.3 PmDE 0.4 E RAmdeg 8 E DEmdeg 9
E pmRA 1.8 E pmDE 1.9 EpRAm 1991.36 EpDEm 1991.25
Num 5 Q RAmdeg 0.9 Q DEmdeg 0.9 Q pmRA 0.8
Q pmDE 0.9 BTmag 9.297 E BTmag 0.018 VTmag 8.879
E VTmag 0.014 Prox 891 TYC T HIP
CCDM RAdeg 329.53235111 DEdeg 56.58328333 EpRA 1990 1.75
EpDE 1990 1.70 E RAdeg 7.8 E DEdeg 8.5 Posflg
Corr 0.1
SAO
SAO 33924 DelFlag RA1950 PmRA1950 0.0022
DE1950 PmDE1950 0.024 Vmag 8.8 SpType A3
Double code Source 38 CatNum 12693 DM BD+55 2657
DMcomp BDsup HD 208948 M HD 0
GC RA1950rad 5.74397604 DE1950rad 0.98338728 PmRA2000 0.0025
PmDE2000 0.02
CCDM
Ccdm 21581+5635 RComp Comp A Note1
Note2 Discov num DRAs 1.83 DDEs -0.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.1 Sp A3 PmNote *
PmRA 15 PmDE 9 Dm number +55 2657 Cat1 BD
Name2 +56 1519 Cat2 AGK2/3 HD 208948 M HD
ADS BDS A15503 M ADS BDS N IDS IDS 21546N5607A
HIC
 
 
21581+5635 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 215807.36+563506.0 Mag 12 PmRA 7.00
PmDE 5.0 Calc delta mag 3.12 Calc coord yes
CCDM
Ccdm 21581+5635 RComp Comp B Note1
Note2 Discov num HJ 1709 DRAs DDEs
R dRAs Year 1919 Theta 314 Rho 7.8
Obs 3 Vmag 12.2 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A15503 M ADS BDS N IDS IDS 21546N5607B
HIC