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Doubles in session


Current system
20498+3833
HJ 1582 AB


Nearby doubles
17' : 20511+3837
SEI1281

25' : 20478+3840
SEI1251

26' : 20509+3855
SEI1278

27' : 20476+3839
SEI1249

27' : 20498+3900
MLB 983

28' : 20507+3807
SEI1275

30' : 20518+3820
ES 2123AB

33' : 20476+3812
SEI1250

34' : 20470+3828
ES 2054

37' : 20471+3850
HJ 1575

42' : 20488+3754
TDT2557

43' : 20530+3851
ALI 954

43' : 20470+3806
TDT2534

45' : 20510+3915
SEI1279AB

45' : 20519+3911
SEI1283

45' : 20521+3758
RAO 442

45' : 20461+3824
ALI 949

47' : 20525+3759
ES 2516

47' : 20489+3919
TDT2558

49' : 20480+3917
A 1434AB

50' : 20461+3858
CRB 11

50' : 20459+3852
COU2294

51' : 20526+3756
SEI1289

51' : 20493+3923
SEI1263AB

53' : 20490+3925
TDT2560

55' : 20506+3740
SKF1925



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.

20498+3833 HJ 1582 AB

 
 
20h 49m 47.53s +38° 33' 10.8" P.A. 45.00 sep 17.4 mag 8.44,12.80 Sp M
 
 
Coord 2000 20498+3833 Discov num HJ 1582 Comp AB Coord arcsec 2000 20 49 47.53 +38 33 10.8
Date first 1905 Date last 2015 Obs 7
Pa first 47 Pa last 45.1 P.A. Now (θ) 45.1°
Sep first 17.1 Sep last 17.424 Sep. Now (ρ) 17.424"
Mag pri 8.44 Mag sec 12.80 delta mag (ΔM) 4.36 Spectral class M (red)
Pri motion ra +002 Sec motion ra -001
Pri motion dec -004 Sec motion dec -004
Notes
rPM=0.671
Nature of this double is uncertain.
 
 
20498+3833 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 49 48 +38 33 11 HJ 1582 AB 2015 7 45 17.4 8.44 12.80 4.36 <===
Show 20 49 48 +38 33 11 HJ 1582 AC 2015 17 327 28.7 8.44 10.37 1.93
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 3166-00031-1 Gaia DR2 1872729852743929728
 
 
WDS 20498+3833 HJ 1582 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
20498+3833 HJ 1582 AB 1905 2 45 17.1 8.44 12.80 M 204947.53+383310.8
20498+3833 HJ 1582 AB 2002 3 45 17.7 8.44 12.80 M 204947.53+383310.8
20498+3833 HJ 1582 AB 2015 4 45 17.4 8.44 12.80 M 204947.53+383310.8

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

 
 
WDS 20498+3833 HJ 1582 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20498+3833 HJ 1582 AB : MEASURES
 
 
No records found.

 
 
WDS 20498+3833 : VIRTUAL EYEPIECE
 
 

20498+3833 HJ 1582A mag 8.44 Sp M 20498+3833 HJ 1582B sep 15.6 P.A. 38.10 mag 12.8 20498+3833 HJ 1582C sep 27.0 P.A. 333.30 mag 10.37 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 20498+3833 : ALADIN DSS IMAGE @ 20h 49m 47.53s +38° 33' 10.8"
 
 
 
 
WDS 20498+3833 HJ 1582 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20498+3833 HJ 1582AB distance=0' 20511+3837 SEI1281 distance=17' 20478+3840 SEI1251 distance=25' 20509+3855 SEI1278 distance=26' 20476+3839 SEI1249 distance=27' 20498+3900 MLB 983 distance=27' 20507+3807 SEI1275 distance=28' 20518+3820 ES 2123AB distance=30' 20518+3820 ES 2123AC distance=30' 20476+3812 SEI1250 distance=33' 20470+3828 ES 2054 distance=34' 20471+3850 HJ 1575 distance=37' 20488+3754 TDT2557 distance=42' 20530+3851 ALI 954 distance=43' 20470+3806 TDT2534 distance=43' 20510+3915 SEI1279BC distance=45' 20510+3915 SEI1279AB distance=45' 20519+3911 SEI1283 distance=45' 20521+3758 RAO 442 distance=45' 20461+3824 ALI 949 distance=45' 20525+3759 ES 2516 distance=47' 20489+3919 TDT2558 distance=47' 20480+3917 A 1434AB distance=49' 20480+3917 A 1434AB,C distance=49' 20461+3858 CRB 11 distance=50' 20459+3852 COU2294 distance=50' 20493+3923 ALI 952BC distance=51' 20493+3923 DAM 26BD distance=51' 20526+3756 SEI1289 distance=51' 20493+3923 SEI1263AB distance=51' 20490+3925 TDT2560 distance=53' 20506+3740 SKF1925 distance=55' 20529+3752 TDT2600 distance=55' 20450+3827 ALI 947 distance=56' 20453+3854 SEI1239 distance=57' 20514+3927 TDT2581 distance=57' 20449+3839 ALI 951 distance=58' 20464+3747 SEI1244 distance=62' 20528+3925 SEI1290 distance=63' 20546+3900 SEI1308 distance=63' 20457+3917 SEI1241 distance=65' 20540+3751 TDT2614 distance=66' 20549+3803 TDT2626Aa,Ab distance=67' 20549+3803 SEI1309AB distance=67' 20449+3908 SEI1236 distance=67' 20440+3839 COU2292 distance=68' 20533+3740 SEI1294 distance=68' 20440+3838 TDT2506 distance=69' 20546+3914 MLB 780AB distance=70' 20546+3914 BKO 470BC distance=70' 20472+3730 J 1210 distance=71' 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 20498+3833 HJ 1582 AB 45 17.4
Show 20498+3833 HJ 1582 AC 327 28.7
Show 20511+3837 SEI1281 102 8.6 17
Show 20478+3840 SEI1251 42 15.2 25
Show 20509+3855 SEI1278 135 25.5 26
Show 20476+3839 SEI1249 69 27.8 27
Show 20498+3900 MLB 983 191 3.8 27
Show 20507+3807 SEI1275 196 22.2 28
Show 20518+3820 ES 2123 AB 102 5.2 30
Show 20518+3820 ES 2123 AC 327 37.4 30
Show 20476+3812 SEI1250 18 17.3 33
Show 20470+3828 ES 2054 192 2.7 34
Show 20471+3850 HJ 1575 51 14.9 37
Show 20488+3754 TDT2557 237 0.7 42
Show 20530+3851 ALI 954 61 8.9 43
Show 20470+3806 TDT2534 138 0.6 43
Show 20510+3915 SEI1279 BC 189 7.3 45
Show 20510+3915 SEI1279 AB 147 12.9 45
Show 20519+3911 SEI1283 1 22.8 45
Show 20521+3758 RAO 442 81 2.6 45
Show 20461+3824 ALI 949 313 11.9 45
Show 20525+3759 ES 2516 216 6.3 47
Show 20489+3919 TDT2558 191 1.1 47
Show 20480+3917 A 1434 AB 178 0.0 49
Show 20480+3917 A 1434 AB,C 256 2.5 49
Show 20461+3858 CRB 11 272 10.8 50
Show 20459+3852 COU2294 125 0.9 50
Show 20493+3923 ALI 952 BC 50 4.9 51
Show 20493+3923 DAM 26 BD 53 9.5 51
Show 20526+3756 SEI1289 240 25.3 51
Show 20493+3923 SEI1263 AB 98 23.6 51
Show 20490+3925 TDT2560 38 1.1 53
Show 20506+3740 SKF1925 170 13.8 55
Show 20529+3752 TDT2600 43 0.5 55
Show 20450+3827 ALI 947 69 6.9 56
Show 20453+3854 SEI1239 40 26.8 57
Show 20514+3927 TDT2581 146 0.8 57
Show 20449+3839 ALI 951 49 11.1 58
Show 20464+3747 SEI1244 149 22.5 62
Show 20528+3925 SEI1290 222 14.2 63
Show 20546+3900 SEI1308 93 6.0 63
Show 20457+3917 SEI1241 309 7.1 65
Show 20540+3751 TDT2614 350 0.6 66
Show 20549+3803 TDT2626 Aa,Ab 20 0.7 67
Show 20549+3803 SEI1309 AB 120 6.5 67
Show 20449+3908 SEI1236 318 27.4 67
Show 20440+3839 COU2292 240 0.3 68
Show 20533+3740 SEI1294 26 23.1 68
Show 20440+3838 TDT2506 23 2.9 69
Show 20546+3914 MLB 780 AB 64 9.6 70
Show 20546+3914 BKO 470 BC 280 2.9 70

 
 
WDS 20498+3833 : COMPONENTS
 
 
  A B
B pa=38.1°
sep=15.63"
 
C pa=333.3°
sep=27.00"
pa=298.5°
sep=24.77"
 
 
20498+3833 A
 
 
Coord arcsec 2000 204947.53+383310.8 Mag 8.44 Spectral class M (red) PmRA 2.00
PmDE -4.0 Tycho2 3166-00031-1 DM BD+38 4244
Tycho2
Tycho2 3166-00031-1 Pflag RAmdeg 312.44807723 DEmdeg 38.55301901
PmRA 2.1 PmDE -4.4 E RAmdeg 8 E DEmdeg 7
E pmRA 1.2 E pmDE 1.2 EpRAm 1990.91 EpDEm 1991.16
Num 11 Q RAmdeg 0.8 Q DEmdeg 1.1 Q pmRA 0.7
Q pmDE 1.2 BTmag 10.761 E BTmag 0.035 VTmag 8.444
E VTmag 0.012 Prox 999 TYC T HIP
CCDM RAdeg 312.44807083 DEdeg 38.55302944 EpRA 1990 1.70
EpDE 1990 1.75 E RAdeg 7.9 E DEdeg 7.1 Posflg
Corr 0.0
CCDM
Ccdm 20498+3833 RComp Comp A Note1
Note2 Discov num DRAs -0.46 DDEs 9.6
R dRAs 10 Year Theta Rho
Obs 3 Vmag 8.5 Sp M PmNote *
PmRA 4 PmDE -22 Dm number +38 4244 Cat1 BD
Name2 +38 2105 Cat2 AGK2/3 HD M HD
ADS BDS B10563 M ADS BDS N IDS IDS 20460N3811A
HIC
 
 
20498+3833 B
 
 
Coord arcsec 2000 204948.35+383323.1 Mag 12.8 PmRA -1.00 PmDE -4.0
Calc delta mag 4.36 Calc coord yes
CCDM
Ccdm 20498+3833 RComp Comp B Note1
Note2 Discov num HJ 1582 DRAs DDEs
R dRAs Year 1905 Theta 046 Rho 17.1
Obs 2 Vmag 12.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10563 M ADS BDS N IDS IDS 20460N3811B
HIC
 
 
20498+3833 C
 
 
Coord arcsec 2000 204946.50+383334.9 Mag 10.37 PmRA 2.00 PmDE 4.0
Calc delta mag 1.93 Calc coord yes
CCDM
Ccdm 20498+3833 RComp Comp C Note1
Note2 Discov num HJ 1582 DRAs DDEs
R dRAs Year 1896 Theta 326 Rho 28.0
Obs 4 Vmag 10.7 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10563 M ADS BDS N IDS IDS 20460N3811C
HIC