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Current system
21378+6402
HJ 1680 AB


Nearby doubles
24' : 21342+6400
ES 2712

30' : 21332+6410
MLB 223

37' : 21326+6350
ES 2711

40' : 21394+6325
STI1044

41' : 21339+6332
TDS1135

41' : 21426+6429
KPP2415

44' : 21389+6446
STI1043

48' : 21365+6449
MLB 224

53' : 21297+6406
RAO 622

57' : 21338+6454
HU 966

58' : 21410+6311
TDT3106

61' : 21402+6306
MLB 175

77' : 21493+6401
TDT3177

84' : 21466+6305
KPP4247

84' : 21356+6526
TOI2050

85' : 21505+6401
ES 1920

86' : 21490+6323
MLB 177

87' : 21508+6400
STI1061AB

88' : 21311+6521
TDT3005

89' : 21257+6325
STI1028AB

89' : 21511+6401
STF2842

89' : 21512+6414
ES 1921

93' : 21492+6312
HEI 290

95' : 21464+6250
STI1049

96' : 21359+6539
MLR 83AB

97' : 21231+6414
LDS4882



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.

21378+6402 HJ 1680 AB

 
 
21h 37m 40.62s +64° 03' 45.9" P.A. 268.00 sep 15.8 mag 10.50,12.47
 
 
Coord 2000 21378+6402 Discov num HJ 1680 Comp AB Coord arcsec 2000 21 37 40.62 +64 03 45.9
Date first 1828 Date last 2015 Obs 9
Pa first 264 Pa last 268.4 P.A. Now (θ) 268.4°
Sep first 10.0 Sep last 15.754 Sep. Now (ρ) 15.754"
Mag pri 10.50 Mag sec 12.47 delta mag (ΔM) 1.97 Spectral class
Pri motion ra -006 Sec motion ra +005
Pri motion dec -008 Sec motion dec -008
Notes
rPM=1.1
This double is not physical.
 
 
21378+6402 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 37 41 +64 03 46 HJ 1680 AB 2015 9 268 15.8 10.50 12.47 1.97 <===
Show 21 37 41 +64 03 46 HJ 1680 AC 2015 9 222 21.9 10.50 12.92 2.42
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cepheus Tycho2 4257-00881-1 Gaia DR2 2217536596123775104
 
 
WDS 21378+6402 HJ 1680 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
21378+6402 HJ 1680 AB 1999 2 268 15.9 10.50 12.47 D 213740.62+640345.9
21378+6402 HJ 1680 AB 2003 4 269 16.3 10.50 12.47 D 213740.62+640345.9
21378+6402 HJ 1680 AB 2012 5 269 15.9 10.50 12.47 D 213740.62+640345.9
21378+6402 HJ 1680 AB 2015 6 268 15.8 10.50 12.47 213740.62+640345.9

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

 
 
WDS 21378+6402 HJ 1680 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21378+6402 HJ 1680 AB : MEASURES
 
 
No records found.

 
 
WDS 21378+6402 : VIRTUAL EYEPIECE
 
 

21378+6402 HJ 1680A mag 10.5 21378+6402 HJ 1680B sep 6.9 P.A. 266.30 mag 12.47 21378+6402 HJ 1680C sep 17.5 P.A. 201.40 mag 12.92 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 21378+6402 : ALADIN DSS IMAGE @ 21h 37m 40.62s +64° 03' 45.9"
 
 
 
 
WDS 21378+6402 HJ 1680 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21378+6402 HJ 1680AB distance=0' 21342+6400 ES 2712 distance=24' 21332+6410 MLB 223 distance=30' 21326+6350 ES 2711 distance=37' 21394+6325 STI1044 distance=40' 21339+6332 TDS1135 distance=41' 21426+6429 KPP2415 distance=41' 21389+6446 STI1043 distance=44' 21365+6449 MLB 224 distance=48' 21439+6336 STF2827A,BC distance=50' 21439+6336 STF2827BC distance=50' 21297+6406 RAO 622 distance=53' 21338+6454 HU 966 distance=57' 21410+6311 TDT3106 distance=58' 21402+6306 MLB 175 distance=61' 21493+6401 TDT3177 distance=77' 21466+6305 KPP4247 distance=84' 21356+6526 TOI2050 distance=84' 21505+6401 ES 1920 distance=85' 21490+6323 MLB 177 distance=86' 21508+6400 MRI 57BC distance=87' 21508+6400 STI1061AB distance=87' 21508+6400 MRI 57AC distance=87' 21311+6521 TDT3005 distance=88' 21257+6325 MRI 38BC distance=89' 21257+6325 STI1028AB distance=89' 21511+6401 STF2842 distance=89' 21512+6414 ES 1921 distance=89' 21492+6312 HEI 290 distance=93' 21464+6250 STI1049 distance=95' 21359+6539 MLR 83AB distance=96' 21359+6539 MLR 83AB,C distance=96' 21231+6414 LDS4882 distance=97' 21282+6525 HJ 1656AB distance=102' 21282+6525 HJ 1656AC distance=102' 21282+6525 ABH 145AD distance=102' 21282+6525 ABH 145AE distance=102' 21282+6525 ABH 145AF distance=102' 21282+6525 ABH 145AG distance=102' 21282+6525 ABH 145AH distance=102' 21282+6525 ES 1919AI distance=102' 21474+6245 WIS 354 distance=103' 21447+6233 FYM 281 distance=103' 21309+6537 SKF2614 distance=103' 21331+6543 TDT3026 distance=104' 21535+6408 STI1069 distance=104' 21518+6453 STF2844 distance=105' 21536+6405 TDT3218 distance=105' 21261+6517 TDT2961 distance=105' 21498+6514 MLR 74 distance=105' 21236+6456 STF2798 distance=105' 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 21378+6402 HJ 1680 AB 268 15.8
Show 21378+6402 HJ 1680 AC 222 21.9
Show 21342+6400 ES 2712 228 13.1 24
Show 21332+6410 MLB 223 129 1.7 30
Show 21326+6350 ES 2711 351 12.4 37
Show 21394+6325 STI1044 195 5.3 40
Show 21339+6332 TDS1135 28 0.9 41
Show 21426+6429 KPP2415 18 21.0 41
Show 21389+6446 STI1043 46 5.4 44
Show 21365+6449 MLB 224 104 6.1 48
Show 21439+6336 STF2827 A,BC 198 5.9 50
Show 21439+6336 STF2827 BC 319 0.8 50
Show 21297+6406 RAO 622 320 2.4 53
Show 21338+6454 HU 966 335 0.5 57
Show 21410+6311 TDT3106 231 0.6 58
Show 21402+6306 MLB 175 85 2.9 61
Show 21493+6401 TDT3177 89 0.4 77
Show 21466+6305 KPP4247 34 1.9 84
Show 21356+6526 TOI2050 109 12.2 84
Show 21505+6401 ES 1920 152 4.6 85
Show 21490+6323 MLB 177 57 2.6 86
Show 21508+6400 MRI 57 BC 273 8.8 87
Show 21508+6400 STI1061 AB 312 8.0 87
Show 21508+6400 MRI 57 AC 292 15.9 87
Show 21311+6521 TDT3005 253 0.4 88
Show 21257+6325 MRI 38 BC 53 8.5 89
Show 21257+6325 STI1028 AB 343 6.7 89
Show 21511+6401 STF2842 102 3.5 89
Show 21512+6414 ES 1921 173 4.5 89
Show 21492+6312 HEI 290 7 1.2 93
Show 21464+6250 STI1049 90 4.5 95
Show 21359+6539 MLR 83 AB 321 0.5 96
Show 21359+6539 MLR 83 AB,C 10 23.9 96
Show 21231+6414 LDS4882 160 11.2 97
Show 21282+6525 HJ 1656 AB 164 13.5 102
Show 21282+6525 HJ 1656 AC 14 15.1 102
Show 21282+6525 ABH 145 AD 68 98.5 102
Show 21282+6525 ABH 145 AE 96 64.3 102
Show 21282+6525 ABH 145 AF 182 49.5 102
Show 21282+6525 ABH 145 AG 190 55.6 102
Show 21282+6525 ABH 145 AH 247 78.6 102
Show 21282+6525 ES 1919 AI 23 8.2 102
Show 21474+6245 WIS 354 6 69.0 103
Show 21447+6233 FYM 281 278 4.1 103
Show 21309+6537 SKF2614 236 54.9 103
Show 21331+6543 TDT3026 225 2.3 104
Show 21535+6408 STI1069 48 13.2 104
Show 21518+6453 STF2844 260 11.9 105
Show 21536+6405 TDT3218 232 1.7 105
Show 21261+6517 TDT2961 85 4.9 105
Show 21498+6514 MLR 74 264 0.9 105

 
 
WDS 21378+6402 : COMPONENTS
 
 
  A B
B pa=266.3°
sep=6.90"
 
C pa=201.4°
sep=17.52"
pa=178.2°
sep=15.89"
 
 
21378+6402 A
 
 
Coord arcsec 2000 213740.62+640345.9 Mag 10.5 PmRA -6.00 PmDE -8.0
Tycho2 4257-00881-1
Tycho2
Tycho2 4257-00881-1 Pflag RAmdeg 324.41926570 DEmdeg 64.06276771
PmRA -7.3 PmDE -5.9 E RAmdeg 22 E DEmdeg 21
E pmRA 2.6 E pmDE 2.5 EpRAm 1989.88 EpDEm 1989.64
Num 5 Q RAmdeg 1.2 Q DEmdeg 0.7 Q pmRA 1.2
Q pmDE 0.7 BTmag 10.769 E BTmag 0.038 VTmag 10.500
E VTmag 0.039 Prox 841 TYC T HIP
CCDM RAdeg 324.41930333 DEdeg 64.06278167 EpRA 1990 1.69
EpDE 1990 1.76 E RAdeg 23.7 E DEdeg 23.5 Posflg
Corr 0.0
 
 
21378+6402 B
 
 
Coord arcsec 2000 213739.57+640345.5 Mag 12.47 PmRA 5.00 PmDE -8.0
Calc delta mag 1.97 Calc coord yes
 
 
21378+6402 C
 
 
Coord arcsec 2000 213739.65+640329.6 Mag 12.92 PmRA -9.00 PmDE -1.0
Calc delta mag 2.42 Calc coord yes