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Doubles in session


Current system
20423+2837
HJ 1561
HD 334984


Nearby doubles
15' : 20422+2852
MLB 664

24' : 20407+2848
MLB 533

32' : 20400+2835
TDS1088

33' : 20445+2856
MLB 710

36' : 20448+2825
AG 411

37' : 20447+2857
TDT2514

41' : 20401+2906
TDT2458

45' : 20429+2754
MLB 709

46' : 20413+2922
ARY 29

47' : 20402+2916
FMR 160

49' : 20393+2906
HO 136

50' : 20411+2925
ES 508AB

51' : 20411+2751
TDT2471

54' : 20435+2930
NSN 735

54' : 20463+2853
TDT2530

55' : 20399+2753
MLB 613

58' : 20387+2910
L 69

59' : 20385+2909
HO 458

62' : 20422+2939
COU1175

62' : 20461+2916
MLB 711

64' : 20382+2806
MLB 612

65' : 20374+2847
MLB 483

66' : 20429+2732
J 513

70' : 20371+2830
TDT2426AB

74' : 20474+2808
BRT3363

74' : 20406+2948
HO 137AB



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.

20423+2837 HJ 1561 (HD 334984)

 
 
20h 42m 20.81s +28° 38' 11.8" P.A. 275.00 sep 9.4 mag 10.11,11.16 Sp G5
 
 
Coord 2000 20423+2837 Discov num HJ 1561 Comp Coord arcsec 2000 20 42 20.81 +28 38 11.8
Date first 1828 Date last 2016 Obs 16
Pa first 273 Pa last 275.3 P.A. Now (θ) 275.3°
Sep first 4.5 Sep last 9.361 Sep. Now (ρ) 9.361"
Mag pri 10.11 Mag sec 11.16 delta mag (ΔM) 1.05 Spectral class G5 (yellow)
Pri motion ra +036 Sec motion ra +036
Pri motion dec -017 Sec motion dec -017
Notes T (Parallax indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 334984 Constellation Vulpecula Tycho2 2182-01337-1 Gaia DR2 1857361806917357568
HD 334984
 
 
WDS 20423+2837 HJ 1561 (HD 334984) : 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
20423+2837 HJ 1561 2000 6 275 9.3 10.11 11.16 G5 D 204220.81+283811.8
20423+2837 HJ 1561 2011 8 275 9.4 10.11 11.16 G5 D 204220.81+283811.8
20423+2837 HJ 1561 2015 11 275 9.4 10.11 11.16 G5 W 204220.81+283811.8
20423+2837 HJ 1561 2016 16 275 9.4 10.11 11.16 G5 T 204220.81+283811.8

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

 
 
WDS 20423+2837 HJ 1561 (HD 334984) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20423+2837 HJ 1561 (HD 334984) : MEASURES
 
 
No records found.

 
 
WDS 20423+2837 (HD 334984) : VIRTUAL EYEPIECE
 
 

20423+2837 HJ 1561A mag 10.11 Sp G5 20423+2837 HJ 1561B sep 8.2 P.A. 276.00 mag 11.16 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 20423+2837 (HD 334984) : ALADIN DSS IMAGE @ 20h 42m 20.81s +28° 38' 11.8"
 
 
 
 
WDS 20423+2837 HJ 1561 (HD 334984) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20423+2837 HJ 1561 distance=0' 20422+2852 MLB 664 distance=15' 20407+2848 MLB 533 distance=24' 20400+2835 TDS1088 distance=32' 20445+2856 MLB 710 distance=33' 20448+2825 AG 411 distance=36' 20447+2857 TDT2514 distance=37' 20401+2906 TDT2458 distance=41' 20429+2754 MLB 709 distance=45' 20413+2922 ARY 29 distance=46' 20402+2916 FMR 160 distance=47' 20393+2906 HO 136 distance=49' 20411+2925 ES 508AB distance=50' 20411+2925 ES 508AC distance=50' 20411+2751 TDT2471 distance=51' 20435+2930 NSN 735 distance=54' 20463+2853 TDT2530 distance=54' 20399+2753 MLB 613 distance=55' 20387+2910 L 69 distance=58' 20385+2909 HO 458 distance=59' 20422+2939 COU1175 distance=62' 20461+2916 MLB 711 distance=62' 20382+2806 MLB 612 distance=64' 20374+2847 MLB 483 distance=65' 20429+2732 J 513 distance=66' 20371+2830 TDT2426AB distance=70' 20474+2808 BRT3363 distance=74' 20406+2948 HO 137AB distance=74' 20406+2948 GII 290Aa,Ab distance=74' 20403+2947 STF2714 distance=74' 20368+2823 MLB 482 distance=75' 20461+2740 TDT2527 distance=78' 20463+2740 MLB 712AB distance=78' 20463+2740 MLB 712AC distance=78' 20463+2740 BRT3362CD distance=79' 20483+2832 GRV 382 distance=80' 20416+3000 COU1174 distance=83' 20385+2945 COU1172 distance=84' 20412+3001 COU1173 distance=85' 20378+2943 A 742A,BC distance=88' 20481+2753 ES 510BC distance=89' 20481+2753 ES 510AB distance=89' 20378+2943 A 742BC distance=89' 20439+3005 TDS1097 distance=89' 20435+2709 TDT2500 distance=91' 20407+3007 TDT2467 distance=92' 20393+2714 HJ 1557AB distance=92' 20393+2714 TDT2454Ba,Bb distance=92' 20381+2953 A 744 distance=93' 20494+2840 CBL 86 distance=94' 20378+2951 TDT2435 distance=94' 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 20423+2837 HJ 1561 275 9.4
Show 20422+2852 MLB 664 172 4.7 15
Show 20407+2848 MLB 533 269 3.4 24
Show 20400+2835 TDS1088 153 0.9 32
Show 20445+2856 MLB 710 180 7.6 33
Show 20448+2825 AG 411 20 2.9 36
Show 20447+2857 TDT2514 130 1.8 37
Show 20401+2906 TDT2458 197 2.4 41
Show 20429+2754 MLB 709 323 2.7 45
Show 20413+2922 ARY 29 143 119.3 46
Show 20402+2916 FMR 160 215 59.7 47
Show 20393+2906 HO 136 358 2.6 49
Show 20411+2925 ES 508 AB 232 2.5 50
Show 20411+2925 ES 508 AC 226 18.2 50
Show 20411+2751 TDT2471 2 0.2 51
Show 20435+2930 NSN 735 111 0.8 54
Show 20463+2853 TDT2530 27 0.6 54
Show 20399+2753 MLB 613 143 8.2 55
Show 20387+2910 L 69 89 3.0 58
Show 20385+2909 HO 458 101 2.3 59
Show 20422+2939 COU1175 138 3.5 62
Show 20461+2916 MLB 711 39 6.2 62
Show 20382+2806 MLB 612 168 6.6 64
Show 20374+2847 MLB 483 69 8.6 65
Show 20429+2732 J 513 163 4.0 66
Show 20371+2830 TDT2426 AB 259 2.6 70
Show 20474+2808 BRT3363 159 4.0 74
Show 20406+2948 HO 137 AB 358 0.8 74
Show 20406+2948 GII 290 Aa,Ab 43 0.1 74
Show 20403+2947 STF2714 338 6.8 74
Show 20368+2823 MLB 482 269 8.5 75
Show 20461+2740 TDT2527 94 2.0 78
Show 20463+2740 MLB 712 AB 43 8.5 78
Show 20463+2740 MLB 712 AC 126 24.1 78
Show 20463+2740 BRT3362 CD 84 6.3 79
Show 20483+2832 GRV 382 39 64.3 80
Show 20416+3000 COU1174 32 0.3 83
Show 20385+2945 COU1172 100 0.3 84
Show 20412+3001 COU1173 46 1.1 85
Show 20378+2943 A 742 A,BC 343 56.8 88
Show 20481+2753 ES 510 BC 229 8.9 89
Show 20481+2753 ES 510 AB 337 43.9 89
Show 20378+2943 A 742 BC 132 1.2 89
Show 20439+3005 TDS1097 357 0.9 89
Show 20435+2709 TDT2500 353 2.2 91
Show 20407+3007 TDT2467 160 0.8 92
Show 20393+2714 HJ 1557 AB 207 13.1 92
Show 20393+2714 TDT2454 Ba,Bb 46 0.9 92
Show 20381+2953 A 744 272 0.7 93
Show 20494+2840 CBL 86 317 53.7 94
Show 20378+2951 TDT2435 143 2.3 94

 
 
WDS 20423+2837 : COMPONENTS
 
 
  A
B pa=276.0°
sep=8.23"
 
 
20423+2837 A
 
 
Componente originario normalizzato AB Name HD 334984 Coord arcsec 2000 204220.81+283811.8 Mag 10.11
Spectral class G5 (yellow) PmRA 36.00 PmDE -17.0 Tycho2 2182-01337-1
HD 334984
Tycho2
Tycho2 2182-01337-1 Pflag RAmdeg 310.58670735 DEmdeg 28.63660652
PmRA 33.6 PmDE -13.7 E RAmdeg 20 E DEmdeg 21
E pmRA 2.1 E pmDE 2.0 EpRAm 1990.72 EpDEm 1990.57
Num 3 Q RAmdeg 0.2 Q DEmdeg 0.4 Q pmRA 0.2
Q pmDE 0.4 BTmag 10.719 E BTmag 0.037 VTmag 10.108
E VTmag 0.030 Prox 93 TYC T HIP
CCDM RAdeg 310.58661917 DEdeg 28.63663833 EpRA 1990 1.70
EpDE 1990 1.69 E RAdeg 20.3 E DEdeg 21.0 Posflg
Corr 0.0
 
 
20423+2837 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204220.19+283812.7 Mag 11.16 PmRA 36.00
PmDE -17.0 Tycho2 2182-01337-2 Calc delta mag 1.05 Calc coord yes
Tycho2
Tycho2 2182-01337-2 Pflag RAmdeg 310.58377267 DEmdeg 28.63685305
PmRA 35.3 PmDE -12.5 E RAmdeg 48 E DEmdeg 50
E pmRA 2.3 E pmDE 2.3 EpRAm 1986.96 EpDEm 1986.44
Num 3 Q RAmdeg 0.2 Q DEmdeg 0.7 Q pmRA 0.3
Q pmDE 0.7 BTmag 12.054 E BTmag 0.108 VTmag 11.159
E VTmag 0.071 Prox 93 TYC T HIP
CCDM RAdeg 310.58368000 DEdeg 28.63688194 EpRA 1990 1.68
EpDE 1990 1.73 E RAdeg 49.2 E DEdeg 50.7 Posflg
Corr 0.1