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Current system
21444+4611
HJ 1687


Nearby doubles
3' : 21444+4610
COU2315

24' : 21450+4633
NSN 748

24' : 21423+4616
ES 1275AB

26' : 21430+4549
ES 1276

27' : 21434+4634
BRT1151

38' : 21448+4534
TDT3131

39' : 21459+4535
BVD 271

43' : 21467+4533
J 616

45' : 21473+4644
SRW 11AB

46' : 21401+4616
HDS3085

54' : 21439+4517
TDT3123

56' : 21393+4625
COU2312

57' : 21441+4707
TDT3125

58' : 21500+4615
KPP 870

66' : 21466+4713
HJ 1692

66' : 21429+4507
COU2314

67' : 21460+4506
HJ 1689

67' : 21386+4544
KPP1196

67' : 21381+4616
TOR 29

72' : 21492+4702
COU2317AB

73' : 21509+4542
KPP4249

80' : 21396+4712
HJ 1676

83' : 21383+4702
TDT3071

83' : 21435+4448
HO 167AB

83' : 21451+4733
CON 42AB

84' : 21365+4609
ES 101



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.

21444+4611 HJ 1687

 
 
21h 44m 27.85s +46° 10' 34.8" P.A. 55.00 sep 4.9 mag 10.59,11.10
 
 
Coord 2000 21444+4611 Discov num HJ 1687 Comp Coord arcsec 2000 21 44 27.85 +46 10 34.8
Date first 1828 Date last 2015 Obs 9
Pa first 59 Pa last 54.7 P.A. Now (θ) 54.7°
Sep first 2.0 Sep last 4.913 Sep. Now (ρ) 4.913"
Mag pri 10.59 Mag sec 11.10 delta mag (ΔM) 0.51 Spectral class
Pri motion ra +002 Sec motion ra
Pri motion dec -005 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3591-01728-1 Gaia DR2 1974242057620607232
 
 
WDS 21444+4611 HJ 1687 : 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
21444+4611 HJ 1687 1998 5 55 4.9 10.59 11.10 D 214427.85+461034.8
21444+4611 HJ 1687 2010 7 55 4.9 10.59 11.10 D 214427.85+461034.8
21444+4611 HJ 1687 2015 9 55 4.9 10.59 11.10 214427.85+461034.8

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

 
 
WDS 21444+4611 HJ 1687 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21444+4611 HJ 1687 : MEASURES
 
 
No records found.

 
 
WDS 21444+4611 : VIRTUAL EYEPIECE
 
 

21444+4611 HJ 1687A mag 10.59 21444+4611 HJ 1687B sep 4.0 P.A. 44.40 mag 11.1 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 21444+4611 : ALADIN DSS IMAGE @ 21h 44m 27.85s +46° 10' 34.8"
 
 
 
 
WDS 21444+4611 HJ 1687 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21444+4611 HJ 1687 distance=0' 21444+4610 COU2315 distance=3' 21450+4633 NSN 748 distance=24' 21423+4616 ES 1275AB distance=24' 21423+4616 ES 1275BC distance=24' 21423+4616 ES 1275BD distance=24' 21430+4549 ES 1276 distance=26' 21434+4634 BRT1151 distance=27' 21448+4534 TDT3131 distance=38' 21459+4535 BVD 271 distance=39' 21467+4533 J 616 distance=43' 21473+4644 SRW 11AB distance=45' 21473+4644 SRW 11AC distance=45' 21401+4616 HDS3085 distance=46' 21439+4517 TDT3123 distance=54' 21393+4625 COU2312 distance=56' 21441+4707 TDT3125 distance=57' 21500+4615 KPP 870 distance=58' 21466+4713 HJ 1692 distance=66' 21429+4507 COU2314 distance=66' 21460+4506 HJ 1689 distance=67' 21386+4544 KPP1196 distance=67' 21381+4616 TOR 29 distance=67' 21492+4702 COU2317AB distance=72' 21492+4702 COU2317AC distance=72' 21509+4542 KPP4249 distance=73' 21396+4712 HJ 1676 distance=80' 21383+4702 TDT3071 distance=83' 21435+4448 LIN 1Aa,Ab distance=83' 21435+4448 HO 167AB distance=83' 21451+4733 CON 42AB distance=83' 21451+4733 CON 42AC distance=83' 21365+4609 ES 101 distance=84' 21495+4716 HJ 1698 distance=84' 21372+4527 COU2310 distance=88' 21412+4733 GRF 18 distance=89' 21532+4619 SLN 43 distance=91' 21511+4711 A 774 distance=91' 21515+4706 HJ 1701 distance=92' 21370+4520 COU2309 distance=93' 21353+4612 TOR 28 distance=97' 21352+4634 LDS4898 distance=98' 21452+4432 GRV 500 distance=99' 21422+4434 ES 1341AB distance=99' 21422+4434 ES 1341AC distance=99' 21526+4513 ES 522 distance=103' 21513+4456 COU2318 distance=104' 21345+4559 HJ 1660 distance=105' 21526+4714 LI 7AB distance=105' 21526+4714 LI 7AC distance=105' 21343+4630 ES 518 distance=106' 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 21444+4611 HJ 1687 55 4.9
Show 21444+4610 COU2315 101 0.3 3
Show 21450+4633 NSN 748 255 10.0 24
Show 21423+4616 ES 1275 AB 1 72.6 24
Show 21423+4616 ES 1275 BC 337 4.3 24
Show 21423+4616 ES 1275 BD 286 6.1 24
Show 21430+4549 ES 1276 279 3.3 26
Show 21434+4634 BRT1151 278 4.1 27
Show 21448+4534 TDT3131 106 1.7 38
Show 21459+4535 BVD 271 267 12.5 39
Show 21467+4533 J 616 303 4.9 43
Show 21473+4644 SRW 11 AB 28 28.9 45
Show 21473+4644 SRW 11 AC 341 26.3 45
Show 21401+4616 HDS3085 142 16.1 46
Show 21439+4517 TDT3123 242 1.5 54
Show 21393+4625 COU2312 164 0.3 56
Show 21441+4707 TDT3125 220 0.9 57
Show 21500+4615 KPP 870 24 7.3 58
Show 21466+4713 HJ 1692 231 9.0 66
Show 21429+4507 COU2314 38 0.3 66
Show 21460+4506 HJ 1689 57 9.8 67
Show 21386+4544 KPP1196 58 9.3 67
Show 21381+4616 TOR 29 339 7.5 67
Show 21492+4702 COU2317 AB 111 0.3 72
Show 21492+4702 COU2317 AC 141 21.2 72
Show 21509+4542 KPP4249 74 2.0 73
Show 21396+4712 HJ 1676 136 29.6 80
Show 21383+4702 TDT3071 99 2.6 83
Show 21435+4448 LIN 1 Aa,Ab 187 0.2 83
Show 21435+4448 HO 167 AB 205 1.3 83
Show 21451+4733 CON 42 AB 120 0.7 83
Show 21451+4733 CON 42 AC 13 1.5 83
Show 21365+4609 ES 101 4 5.3 84
Show 21495+4716 HJ 1698 321 7.7 84
Show 21372+4527 COU2310 10 0.5 88
Show 21412+4733 GRF 18 203 146.6 89
Show 21532+4619 SLN 43 205 26.1 91
Show 21511+4711 A 774 14 0.6 91
Show 21515+4706 HJ 1701 210 14.5 92
Show 21370+4520 COU2309 53 0.7 93
Show 21353+4612 TOR 28 324 13.1 97
Show 21352+4634 LDS4898 71 3.9 98
Show 21452+4432 GRV 500 348 59.6 99
Show 21422+4434 ES 1341 AB 280 5.9 99
Show 21422+4434 ES 1341 AC 327 33.5 99
Show 21526+4513 ES 522 138 3.1 103
Show 21513+4456 COU2318 109 0.7 104
Show 21345+4559 HJ 1660 261 6.5 105
Show 21526+4714 LI 7 AB 40 4.7 105
Show 21526+4714 LI 7 AC 207 6.0 105
Show 21343+4630 ES 518 14 4.6 106

 
 
WDS 21444+4611 : COMPONENTS
 
 
  A
B pa=44.4°
sep=3.97"
 
 
21444+4611 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 214427.85+461034.8 Mag 10.59 PmRA 2.00
PmDE -5.0 Tycho2 3591-01728-1
Tycho2
Tycho2 3591-01728-1 Pflag RAmdeg 326.11609997 DEmdeg 46.17635089
PmRA 3.0 PmDE -7.6 E RAmdeg 29 E DEmdeg 27
E pmRA 1.3 E pmDE 1.2 EpRAm 1985.89 EpDEm 1986.15
Num 4 Q RAmdeg 1.4 Q DEmdeg 1.9 Q pmRA 1.4
Q pmDE 2.0 BTmag 10.795 E BTmag 0.043 VTmag 10.586
E VTmag 0.048 Prox 907 TYC T HIP
CCDM RAdeg 326.11608972 DEdeg 46.17636889 EpRA 1990 1.57
EpDE 1990 1.58 E RAdeg 29.7 E DEdeg 28.0 Posflg
Corr 0.1
 
 
21444+4611 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 214428.12+461037.6 Mag 11.1 Calc delta mag 0.51
Calc coord yes