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Doubles in session


Current system
20186+2833
HJ 1501 AC


Nearby doubles
17' : 20188+2849
J 3073

37' : 20207+2808
TDT2195

38' : 20166+2806
MLB 608

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BU 441AB

41' : 20182+2912
A 1205

41' : 20176+2754
HO 591

43' : 20180+2913
POP 200

44' : 20191+2915
COU1477

50' : 20223+2826
TDT2214

51' : 20149+2840
HO 122AB

52' : 20177+2922
TDT2145

54' : 20227+2837
COU1169AB

54' : 20195+2740
MLB 609AB

54' : 20165+2747
HDS2889

57' : 20145+2808
BRT 47AB

58' : 20173+2926
TDT2142

58' : 20158+2749
MCA 60AB

60' : 20201+2735
TDT2179

63' : 20181+2730
HDS2898

66' : 20167+2932
OSO 121AB

66' : 20213+2736
TDT2202

67' : 20140+2859
TDS1052

68' : 20196+2727
MLB 610AB

68' : 20156+2927
TDS1053

69' : 20167+2729
COU1168

69' : 20160+2929
MLB 478AB



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.

20186+2833 HJ 1501 AC

 
 
20h 18m 38.40s +28° 31' 59.0" P.A. 349.00 sep 57.3 mag 10.18,11.71 Sp A2
 
 
Coord 2000 20186+2833 Discov num HJ 1501 Comp AC Coord arcsec 2000 20 18 38.40 +28 31 59.0
Date first 1893 Date last 2015 Obs 11
Pa first 351 Pa last 349.4 P.A. Now (θ) 349.4°
Sep first 58.7 Sep last 57.302 Sep. Now (ρ) 57.302"
Mag pri 10.18 Mag sec 11.71 delta mag (ΔM) 1.53 Spectral class A2 (white)
Pri motion ra +002 Sec motion ra -008
Pri motion dec -008 Sec motion dec -017
Notes
rPM=0.716
Nature of this double is uncertain.
 
 
20186+2833 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 334120 20 18 38 +28 31 59 HJ 1501 AB 2015 10 355 12.9 10.18 11.10 0.92
Show 20 18 38 +28 31 59 HJ 1501 AC 2015 11 349 57.3 10.18 11.71 1.53 <===
Show 20 18 38 +28 32 56 HJ 1501 CD 2015 9 12 20.2 11.71 13.70 1.99
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula Tycho2 2167-01256-1 Gaia DR2 1837099830535525888 HD 334120
 
 
WDS 20186+2833 HJ 1501 AC : 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
20186+2833 HJ 1501 AC 1998 5 350 57.4 10.18 12.21 A2 D 201838.40+283159.0
20186+2833 HJ 1501 AC 2002 6 350 57.4 10.18 12.21 A2 D 201838.40+283159.0
20186+2833 HJ 1501 AC 2015 7 349 57.3 10.18 11.71 A2 201838.40+283159.0

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

 
 
WDS 20186+2833 HJ 1501 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20186+2833 HJ 1501 AC : MEASURES
 
 
No records found.

 
 
WDS 20186+2833 : VIRTUAL EYEPIECE
 
 

20186+2833 HJ 1501A mag 10.18 Sp A2 20186+2833 HJ 1501B sep 12.9 P.A. 355.30 mag 11.1 20186+2833 HJ 1501C sep 57.4 P.A. 349.80 mag 11.71 20186+2833 HJ 1501D sep 76.6 P.A. 355.10 mag 13.7 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 20186+2833 : ALADIN DSS IMAGE @ 20h 18m 38.40s +28° 31' 59.0"
 
 
 
 
WDS 20186+2833 HJ 1501 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20186+2833 HJ 1501AC distance=0' 20186+2833 HJ 1501CD distance=1' 20188+2849 J 3073 distance=17' 20207+2808 TDT2195 distance=37' 20166+2806 MLB 608 distance=38' 20175+2909 POP1229Aa,Ab distance=40' 20175+2909 BU 441AB distance=40' 20182+2912 A 1205 distance=41' 20176+2754 HO 591 distance=41' 20180+2913 POP 200 distance=43' 20191+2915 COU1477 distance=44' 20223+2826 TDT2214 distance=50' 20149+2840 HO 122AB distance=51' 20149+2840 HO 122AC distance=51' 20177+2922 TDT2145 distance=52' 20227+2837 COU1169AB distance=54' 20227+2837 COU1169AC distance=54' 20195+2740 MLB 609BC distance=54' 20195+2740 MLB 609AB distance=54' 20165+2747 HDS2889 distance=54' 20145+2808 BRT 47AB distance=57' 20145+2808 BRT 47AC distance=57' 20173+2926 TDT2142 distance=58' 20158+2749 CHR 94Aa,Ab distance=58' 20158+2749 MCA 60AB distance=58' 20201+2735 TDT2179 distance=60' 20181+2730 HDS2898 distance=63' 20167+2932 OSO 121AB distance=66' 20167+2932 OSO 121AC distance=66' 20167+2932 OSO 121AD distance=66' 20167+2932 OSO 121AE distance=66' 20213+2736 TDT2202 distance=66' 20196+2727 MLB 610BC distance=67' 20140+2859 TDS1052 distance=67' 20196+2727 MLB 610AB distance=68' 20156+2927 TDS1053 distance=68' 20167+2729 COU1168 distance=69' 20160+2929 MLB 478AB distance=69' 20160+2929 MLB 478AC distance=69' 20222+2736 MLB 611 distance=73' 20241+2823 AG 404 distance=74' 20179+2945 TDT2149 distance=74' 20242+2900 BU 443AB distance=78' 20242+2900 BU 443AC distance=78' 20242+2900 BU 443AD distance=78' 20134+2910 TDT2100 distance=79' 20201+2716 KPP3357 distance=79' 20227+2930 TDT2218 distance=80' 20244+2802 HDS2918 distance=83' 20124+2856 MLB 531 distance=84' 20123+2824 TDT2081 distance=85' 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 20186+2833 HJ 1501 AB 355 12.9
Show 20186+2833 HJ 1501 AC 349 57.3
Show 20186+2833 HJ 1501 CD 12 20.2 1
Show 20188+2849 J 3073 16 4.5 17
Show 20207+2808 TDT2195 346 0.4 37
Show 20166+2806 MLB 608 227 9.3 38
Show 20175+2909 POP1229 Aa,Ab 217 0.4 40
Show 20175+2909 BU 441 AB 64 6.2 40
Show 20182+2912 A 1205 96 1.2 41
Show 20176+2754 HO 591 293 2.7 41
Show 20180+2913 POP 200 205 6.4 43
Show 20191+2915 COU1477 102 0.6 44
Show 20223+2826 TDT2214 8 1.0 50
Show 20149+2840 HO 122 AB 72 1.4 51
Show 20149+2840 HO 122 AC 152 19.9 51
Show 20177+2922 TDT2145 186 0.7 52
Show 20227+2837 COU1169 AB 59 0.3 54
Show 20227+2837 COU1169 AC 175 1.7 54
Show 20195+2740 MLB 609 BC 282 17.4 54
Show 20195+2740 MLB 609 AB 280 5.5 54
Show 20165+2747 HDS2889 116 0.2 54
Show 20145+2808 BRT 47 AB 232 4.8 57
Show 20145+2808 BRT 47 AC 215 40.4 57
Show 20173+2926 TDT2142 316 1.0 58
Show 20158+2749 CHR 94 Aa,Ab 331 0.0 58
Show 20158+2749 MCA 60 AB 148 0.1 58
Show 20201+2735 TDT2179 161 0.7 60
Show 20181+2730 HDS2898 153 0.2 63
Show 20167+2932 OSO 121 AB 165 13.2 66
Show 20167+2932 OSO 121 AC 283 15.2 66
Show 20167+2932 OSO 121 AD 190 18.9 66
Show 20167+2932 OSO 121 AE 259 25.2 66
Show 20213+2736 TDT2202 0.4 66
Show 20196+2727 MLB 610 BC 287 8.1 67
Show 20140+2859 TDS1052 164 1.6 67
Show 20196+2727 MLB 610 AB 26 63.3 68
Show 20156+2927 TDS1053 302 1.0 68
Show 20167+2729 COU1168 24 0.3 69
Show 20160+2929 MLB 478 AB 13 6.3 69
Show 20160+2929 MLB 478 AC 76 153.6 69
Show 20222+2736 MLB 611 206 9.9 73
Show 20241+2823 AG 404 247 34.4 74
Show 20179+2945 TDT2149 316 0.8 74
Show 20242+2900 BU 443 AB 151 16.7 78
Show 20242+2900 BU 443 AC 97 33.6 78
Show 20242+2900 BU 443 AD 139 31.6 78
Show 20134+2910 TDT2100 98 0.7 79
Show 20201+2716 KPP3357 293 3.8 79
Show 20227+2930 TDT2218 292 0.4 80
Show 20244+2802 HDS2918 228 0.2 83
Show 20124+2856 MLB 531 195 1.7 84

 
 
WDS 20186+2833 : COMPONENTS
 
 
  A B C
B pa=355.3°
sep=12.93"
 
C pa=349.8°
sep=57.40"
pa=348.2°
sep=44.55"
 
D pa=355.1°
sep=76.58"
pa=355.1°
sep=63.65"
pa=10.5°
sep=20.14"
 
 
20186+2833 A
 
 
Name HD 334120 Coord arcsec 2000 201838.40+283159.0 Mag 10.18 Spectral class A2 (white)
PmRA 2.00 PmDE -8.0 Tycho2 2167-01256-1 HD 334120
Tycho2
Tycho2 2167-01256-1 Pflag RAmdeg 304.66003630 DEmdeg 28.53307246
PmRA 1.8 PmDE -8.5 E RAmdeg 16 E DEmdeg 13
E pmRA 1.6 E pmDE 1.6 EpRAm 1990.63 EpDEm 1991.01
Num 5 Q RAmdeg 0.4 Q DEmdeg 1.6 Q pmRA 0.4
Q pmDE 1.6 BTmag 10.341 E BTmag 0.023 VTmag 10.177
E VTmag 0.026 Prox 575 TYC T HIP
CCDM RAdeg 304.66003167 DEdeg 28.53309139 EpRA 1990 1.67
EpDE 1990 1.73 E RAdeg 15.9 E DEdeg 13.3 Posflg
Corr 0.2
 
 
20186+2833 B
 
 
Coord arcsec 2000 201838.32+283211.9 Mag 11.1 PmRA -7.00 PmDE -10.0
Calc delta mag 0.92 Calc coord yes
 
 
20186+2833 C
 
 
Coord arcsec 2000 201837.63+283255.5 Coord calc 201837.63+283255.5 Mag 11.71 PmRA -8.00
PmDE -17.0 Tycho2 2167-01071-1 Calc delta mag 1.53
Tycho2
Tycho2 2167-01071-1 Pflag RAmdeg 304.65680261 DEmdeg 28.54876795
PmRA -4.5 PmDE -16.7 E RAmdeg 130 E DEmdeg 106
E pmRA 3.8 E pmDE 3.6 EpRAm 1977.73 EpDEm 1981.83
Num 2 Q RAmdeg Q DEmdeg Q pmRA
Q pmDE BTmag 13.346 E BTmag 0.249 VTmag 12.207
E VTmag 0.143 Prox 575 TYC HIP
CCDM RAdeg 304.65681472 DEdeg 28.54880639 EpRA 1990 1.64
EpDE 1990 1.74 E RAdeg 139.8 E DEdeg 112.4 Posflg
Corr 0.2
 
 
20186+2833 D
 
 
Coord arcsec 2000 201837.91+283315.3 Mag 13.7 PmRA -11.00 PmDE 88.0
Calc delta mag 3.52 Calc coord yes