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Current system
21246+4801
HJ 1644 AB


Nearby doubles
4' : 21242+4801
SKF2397

20' : 21254+4818
ES 1102AB

23' : 21256+4741
ES 679

34' : 21263+4732
TDT2966

34' : 21212+4804
ES 678

34' : 21231+4831
HDS3045

35' : 21278+4748
ES 680

44' : 21288+4809
HJ 1651

51' : 21204+4733
A 762

52' : 21238+4710
A 765AB

57' : 21291+4727
TDS1130

59' : 21297+4732
A 767

61' : 21295+4836
SWN 1

61' : 21282+4713
ES 1171AB

62' : 21303+4740
COU2440

63' : 21185+4747
HJ 1635AB

63' : 21308+4752
A 769

63' : 21258+4658
OL 221

64' : 21306+4742
ES 824

66' : 21304+4832
SWN 3

66' : 21260+4905
ES 821

68' : 21308+4827
A 770AB

71' : 21314+4821
COU2441

71' : 21315+4817
A 771AB

72' : 21316+4811
SWN 5

72' : 21300+4848
SWN 2



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.

21246+4801 HJ 1644 AB

 
 
21h 24m 35.82s +48° 00' 48.8" P.A. 114.00 sep 24.1 mag 9.42,11.74 Sp A0
 
 
Coord 2000 21246+4801 Discov num HJ 1644 Comp AB Coord arcsec 2000 21 24 35.82 +48 00 48.8
Date first 1828 Date last 2015 Obs 14
Pa first 122 Pa last 114.4 P.A. Now (θ) 114.4°
Sep first 20.0 Sep last 24.115 Sep. Now (ρ) 24.115"
Mag pri 9.42 Mag sec 11.74 delta mag (ΔM) 2.32 Spectral class A0 (white)
Pri motion ra -007 Sec motion ra -003
Pri motion dec -021 Sec motion dec -004
Notes
rPM=0.789
Nature of this double is uncertain.
 
 
21246+4801 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 24 36 +48 00 49 HJ 1644 AB 2015 14 114 24.1 9.42 11.74 2.32 <===
Show 21 24 36 +48 00 49 HJ 1644 AC 2015 6 42 37.7 9.42 13.86 4.44
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3594-02597-1 Gaia DR2 2164728461400411392
 
 
WDS 21246+4801 HJ 1644 AB : 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
21246+4801 HJ 1644 AB 2000 7 115 24.2 9.42 10.40 A0 D 212435.82+480048.8
21246+4801 HJ 1644 AB 2011 9 115 24.2 9.42 10.40 A0 D 212435.82+480048.8
21246+4801 HJ 1644 AB 2015 11 114 24.1 9.42 11.74 A0 212435.82+480048.8

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

 
 
WDS 21246+4801 HJ 1644 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21246+4801 HJ 1644 AB : MEASURES
 
 
No records found.

 
 
WDS 21246+4801 : VIRTUAL EYEPIECE
 
 

21246+4801 HJ 1644A mag 9.42 Sp A0 21246+4801 HJ 1644B sep 17.8 P.A. 124.10 mag 11.74 21246+4801 HJ 1644C sep 32.7 P.A. 31.10 mag 13.86 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 21246+4801 : ALADIN DSS IMAGE @ 21h 24m 35.82s +48° 00' 48.8"
 
 
 
 
WDS 21246+4801 HJ 1644 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21246+4801 HJ 1644AB distance=0' 21242+4801 SKF2397 distance=4' 21254+4818 ES 1102BC distance=20' 21254+4818 CRB 7Ca,Cb distance=20' 21254+4818 ES 1102CD distance=20' 21254+4818 ES 1102AB distance=20' 21256+4741 ES 679 distance=23' 21263+4732 TDT2966 distance=34' 21212+4804 ES 678 distance=34' 21231+4831 HDS3045 distance=34' 21278+4748 ES 680 distance=35' 21288+4809 HJ 1651 distance=44' 21204+4733 A 762 distance=51' 21238+4710 A 765CD distance=52' 21238+4710 A 765AB distance=52' 21238+4710 A 765AB,C distance=52' 21291+4727 TDS1130 distance=57' 21297+4732 A 767 distance=59' 21295+4836 SWN 1 distance=61' 21282+4713 ES 1171AB distance=61' 21282+4713 ES 1171AC distance=61' 21303+4740 COU2440 distance=62' 21185+4747 HJ 1635AB distance=63' 21185+4747 HJ 1635AC distance=63' 21185+4747 HJ 1635AD distance=63' 21308+4752 A 769 distance=63' 21258+4658 OL 221 distance=63' 21306+4742 ES 824 distance=64' 21304+4832 SWN 3 distance=66' 21260+4905 ES 821 distance=66' 21308+4827 A 770AB distance=68' 21308+4827 A 770AB,C distance=68' 21308+4827 A 770AB,D distance=68' 21308+4827 A 770DE distance=69' 21314+4821 COU2441 distance=71' 21315+4817 A 771AB distance=71' 21316+4811 SWN 5 distance=72' 21300+4848 SWN 2 distance=72' 21184+4802 HJ 1633 distance=73' 21304+4717 ES 516 distance=73' 21264+4911 ES 822 distance=74' 21314+4829 ARN 78AB distance=77' 21321+4828 COU2442 distance=78' 21265+4917 ES 823 distance=79' 21249+4919 ES 2710 distance=79' 21306+4852 OSO 148AB distance=79' 21306+4852 OSO 148AC distance=79' 21306+4852 OSO 148AD distance=79' 21247+4640 KPP1079 distance=82' 21323+4821 DJU 7 distance=83' 21314+4853 SWN 4 distance=86' 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 21246+4801 HJ 1644 AB 114 24.1
Show 21246+4801 HJ 1644 AC 42 37.7
Show 21242+4801 SKF2397 246 2.8 4
Show 21254+4818 ES 1102 BC 38 7.0 20
Show 21254+4818 CRB 7 Ca,Cb 110 1.6 20
Show 21254+4818 ES 1102 CD 110 3.6 20
Show 21254+4818 ES 1102 AB 195 49.1 20
Show 21256+4741 ES 679 275 3.6 23
Show 21263+4732 TDT2966 196 0.8 34
Show 21212+4804 ES 678 115 4.4 34
Show 21231+4831 HDS3045 63 0.1 34
Show 21278+4748 ES 680 331 7.6 35
Show 21288+4809 HJ 1651 334 11.9 44
Show 21204+4733 A 762 359 2.5 51
Show 21238+4710 A 765 CD 345 5.9 52
Show 21238+4710 A 765 AB 22 0.6 52
Show 21238+4710 A 765 AB,C 22 26.4 52
Show 21291+4727 TDS1130 176 1.3 57
Show 21297+4732 A 767 169 1.3 59
Show 21295+4836 SWN 1 2 5.3 61
Show 21282+4713 ES 1171 AB 197 3.8 61
Show 21282+4713 ES 1171 AC 232 21.5 61
Show 21303+4740 COU2440 179 0.5 62
Show 21185+4747 HJ 1635 AB 344 17.0 63
Show 21185+4747 HJ 1635 AC 82 19.2 63
Show 21185+4747 HJ 1635 AD 241 17.5 63
Show 21308+4752 A 769 296 0.7 63
Show 21258+4658 OL 221 14 2.2 63
Show 21306+4742 ES 824 353 6.0 64
Show 21304+4832 SWN 3 142 1.0 66
Show 21260+4905 ES 821 276 7.0 66
Show 21308+4827 A 770 AB 143 0.1 68
Show 21308+4827 A 770 AB,C 317 1.1 68
Show 21308+4827 A 770 AB,D 15 98.9 68
Show 21308+4827 A 770 DE 41 7.2 69
Show 21314+4821 COU2441 304 0.2 71
Show 21315+4817 A 771 AB 50 0.0 71
Show 21316+4811 SWN 5 30 5.1 72
Show 21300+4848 SWN 2 352 3.1 72
Show 21184+4802 HJ 1633 67 9.9 73
Show 21304+4717 ES 516 147 3.4 73
Show 21264+4911 ES 822 24 1.4 74
Show 21314+4829 ARN 78 AB 101 50.0 77
Show 21321+4828 COU2442 300 0.2 78
Show 21265+4917 ES 823 280 11.1 79
Show 21249+4919 ES 2710 157 20.1 79
Show 21306+4852 OSO 148 AB 170 16.1 79
Show 21306+4852 OSO 148 AC 119 23.8 79
Show 21306+4852 OSO 148 AD 346 18.6 79
Show 21247+4640 KPP1079 10 8.6 82
Show 21323+4821 DJU 7 98 3.1 83

 
 
WDS 21246+4801 : COMPONENTS
 
 
  A B
B pa=124.1°
sep=17.75"
 
C pa=31.1°
sep=32.66"
pa=3.3°
sep=38.01"
 
 
21246+4801 A
 
 
Coord arcsec 2000 212435.82+480048.8 Mag 9.42 Spectral class A0 (white) PmRA -7.00
PmDE -21.0 Tycho2 3594-02597-1
Tycho2
Tycho2 3594-02597-1 Pflag RAmdeg 321.14925721 DEmdeg 48.01357747
PmRA -5.2 PmDE -20.7 E RAmdeg 10 E DEmdeg 11
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.64 EpDEm 1990.40
Num 7 Q RAmdeg 1.0 Q DEmdeg 1.4 Q pmRA 1.1
Q pmDE 1.4 BTmag 9.628 E BTmag 0.020 VTmag 9.424
E VTmag 0.019 Prox 999 TYC T HIP
CCDM RAdeg 321.14927556 DEdeg 48.01362472 EpRA 1990 1.66
EpDE 1990 1.64 E RAdeg 10.1 E DEdeg 11.0 Posflg
Corr 0.0
CCDM
Ccdm 21246+4801 RComp Comp A Note1
Note2 Discov num DRAs -0.28 DDEs -11.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.4 Sp PmNote *
PmRA -14 PmDE -28 Dm number +47 3396 Cat1 BD
Name2 +47 1739 Cat2 AGK2/3 HD M HD
ADS BDS B10978 M ADS BDS N IDS IDS 21210N4735A
HIC
 
 
21246+4801 B
 
 
Coord arcsec 2000 212437.28+480038.8 Mag 11.74 PmRA -3.00 PmDE -4.0
Calc delta mag 2.32 Calc coord yes
CCDM
Ccdm 21246+4801 RComp Comp B Note1
Note2 Discov num HJ 1644 DRAs DDEs
R dRAs Year 1909 Theta 118 Rho 24.2
Obs 2 Vmag 10.4 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10978 M ADS BDS N IDS IDS 21210N4735B
HIC
 
 
21246+4801 C
 
 
Coord arcsec 2000 212437.50+480116.8 Mag 13.86 PmRA -1.00 PmDE -9.0
Calc delta mag 4.44 Calc coord yes
CCDM
Ccdm 21246+4801 RComp Comp C Note1
Note2 Discov num HJ 1644 DRAs DDEs
R dRAs Year 1912 Theta 042 Rho 36.0
Obs 1 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 21210N4735C
HIC