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Doubles in session


Current system
20064+1802
HJ 2931 AB


Nearby doubles
9' : 20070+1803
BPM2003

12' : 20094+1806
DOO 81

21' : 20078+1800
BPM2015

22' : 20079+1805
TDT2008

24' : 20055+1743
SLE 682

27' : 20051+1822
BPM1985

27' : 20076+1741
JEF 3

27' : 20080+1816
BPM2016

28' : 20047+1751
SLE 680AB

31' : 20085+1806
BPM2021

36' : 20044+1742
BPM1971

37' : 20056+1838
COU 326

38' : 20077+1835
TDT2002

39' : 20090+1808
HJ 2932AB

40' : 20039+1746
BPM1969

41' : 20042+1739
SLE 679

43' : 20046+1729
BPM1978

45' : 20092+1822
HU 354

45' : 20084+1837
HDS2870

45' : 20057+1719
BPM1991

47' : 20073+1718
BPM2008

52' : 20033+1736
BPM1962

53' : 20033+1830
STT 396

54' : 20078+1852
TDT2005

54' : 20028+1747
BPM1953

55' : 20058+1709
BPM1996



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.

20064+1802 HJ 2931 AB

 
 
20h 06m 24.26s +18° 02' 39.2" P.A. 312.00 sep 6.6 mag 11.54,13.00
 
 
Coord 2000 20064+1802 Discov num HJ 2931 Comp AB Coord arcsec 2000 20 06 24.26 +18 02 39.2
Date first 1831 Date last 2016 Obs 13
Pa first 316 Pa last 311.8 P.A. Now (θ) 311.8°
Sep first 3.0 Sep last 6.594 Sep. Now (ρ) 6.594"
Mag pri 11.54 Mag sec 13.00 delta mag (ΔM) 1.46 Spectral class
Pri motion ra -007 Sec motion ra -009
Pri motion dec -002 Sec motion dec +002
Notes
rPM=0.485
Nature of this double is uncertain.
 
 
20064+1802 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 06 24 +18 02 39 HJ 2931 AB 2016 13 312 6.6 11.54 13.00 1.46 <===
Show 20 06 24 +18 02 39 DOO 80 AC 2015 8 207 14.5 11.54 14.20 2.66
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Sagitta Tycho2 1621-01884-1 Gaia DR2 1821878230233310208 HD 351504
 
 
WDS 20064+1802 HJ 2931 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Doo1901 Ma j Doolittle, E. 1901PFAO....1c...1D
Doo1901 Pub. Univ. Penn. 1, Pt. 3, 1901
Doo1903a Ma - Doolittle, E. 1903AJ.....23..175D
Doo1903a AJ 23, 175, 1903 (also in Pub. Univ. Penn. 2, Pt. 3, 1905)
Doo1903b Ma j Doolittle, E. 1903AJ.....23..177D
Doo1903b AJ 23, 177, 1903 (also in Pub. Univ. Penn. 2, Pt. 3, 1905)
Doo1905a Ma j Doolittle, E. 1905PFAO....2c...1D
Doo1905a Pub. Univ. Penn. 2, Pt. 3, 1905
Doo1905b Ma - Doolittle, E. (measure by Hadley, J.M.) 1905PFAO....2c...1D
Doo1905b Pub. Univ. Penn. 2, Pt. 3, 1905
Doo1906A Ma - Doolittle, E. 1906MmRAS..56....1L
Doo1906A +orb cited by Lewis (MemRAS 56, 1, 1906)
Doo1906B Ma - Doolittle, E. 1906QB821.B972.....
Doo1906B cited in BDS (Burnham Double Star Cat., 1906)
Doo1907 Ma j Doolittle, E. 1907PFAO....3c...1D
Doo1907 Pub. Univ. Penn. 3, Pt. 3, 1907
Doo1912 Ma j Doolittle, E. 1912PFAO....4a...1D
Doo1912 Pub. Univ. Penn. 4, Pt. 1, 1912
Doo1913A Ma - Doolittle, E. 1913QB811.B8.......
Doo1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Doo1915a Ma - Doolittle, E. 1915MNRAS..75..666D
Doo1915a MNRAS 75, 666, 1915
Doo1915b Ma - Doolittle, E. 1915PFAO....4a...1D
Doo1915b Pub. Univ. Penn. 4, Pt. 1, 1915
Doo1915c Ma - Doolittle, E. 1915AJ.....29...49D
Doo1915c AJ 29, 49, 1915
Doo1923 Ma j Doolittle, E. 1923PFAO....4b...1D
Doo1923 Pub. Univ. Penn. 4, Pt. 2, 1923
Doo1932A Ma - Doolittle, E. 1932QB821.A43......
Doo1932A cited in ADS (Aitken Double Star Cat.), 1932
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
20064+1802 HJ 2931 AB 1999 6 312 6.7 11.54 13.00 D 200624.26+180239.2
20064+1802 HJ 2931 AB 2001 7 312 6.6 11.54 13.00 D 200624.26+180239.2
20064+1802 HJ 2931 AB 2015 8 312 6.6 11.54 13.00 200624.26+180239.2
20064+1802 HJ 2931 AB 2016 13 312 6.6 11.54 13.00 200624.26+180239.2

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

 
 
WDS 20064+1802 HJ 2931 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20064+1802 HJ 2931 AB : MEASURES
 
 
No records found.

 
 
WDS 20064+1802 : VIRTUAL EYEPIECE
 
 

20064+1802 HJ 2931A mag 11.54 20064+1802 HJ 2931B sep 6.4 P.A. 313.20 mag 13 20064+1802 DOO 80C sep 14.4 P.A. 206.10 mag 14.2 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 20064+1802 : ALADIN DSS IMAGE @ 20h 06m 24.26s +18° 02' 39.2"
 
 
 
 
WDS 20064+1802 HJ 2931 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20064+1802 HJ 2931AB distance=0' 20070+1803 BPM2003 distance=9' 20094+1806 DOO 81 distance=12' 20078+1800 BPM2015 distance=21' 20079+1805 TDT2008 distance=22' 20055+1743 SLE 682 distance=24' 20051+1822 BPM1985 distance=27' 20076+1741 JEF 3 distance=27' 20080+1816 BPM2016 distance=27' 20047+1751 SLE 680AB distance=28' 20047+1751 FYM 279AC distance=28' 20085+1806 BPM2021 distance=31' 20044+1742 BPM1971 distance=36' 20056+1838 COU 326 distance=37' 20077+1835 TDT2002 distance=38' 20090+1808 HJ 2932AB distance=39' 20090+1808 HJ 2932AC distance=39' 20090+1808 HJ 2932AD distance=39' 20039+1746 BPM1969 distance=40' 20042+1739 SLE 679 distance=41' 20046+1729 BPM1978 distance=43' 20092+1822 HU 354 distance=45' 20084+1837 HDS2870 distance=45' 20057+1719 BPM1991 distance=45' 20073+1718 BPM2008 distance=47' 20033+1736 BPM1962 distance=52' 20033+1830 STT 396 distance=53' 20078+1852 TDT2005 distance=54' 20028+1747 BPM1953 distance=54' 20058+1709 BPM1996 distance=55' 20081+1714 TDT2011 distance=55' 20044+1715 COU 325AB distance=57' 20044+1715 GII 28AB,C distance=57' 20024+1744 BPM1948BC distance=60' 20024+1744 BPM1947AB distance=60' 20099+1836 BRT2468 distance=61' 20097+1724 J 833 distance=61' 20107+1750 BPM2044 distance=63' 20041+1854 J 3047 distance=64' 20062+1906 HJL 271 distance=64' 20035+1715 TDT1941 distance=64' 20039+1856 DAM 189 distance=65' 20076+1700 BPMA239 distance=65' 20041+1704 BUP 202CH distance=66' 20065+1908 STJ 26 distance=66' 20023+1835 ARN 109 distance=67' 20041+1704 STT 592AB distance=68' 20041+1704 STT 592AC distance=68' 20041+1704 BUP 202AD distance=68' 20041+1704 BUP 202AE distance=68' 20041+1704 BUP 202AF distance=68' 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 20064+1802 HJ 2931 AB 312 6.6
Show 20064+1802 DOO 80 AC 207 14.5
Show 20070+1803 BPM2003 189 114.3 9
Show 20094+1806 DOO 81 256 9.6 12
Show 20078+1800 BPM2015 105 112.7 21
Show 20079+1805 TDT2008 108 1.2 22
Show 20055+1743 SLE 682 287 11.1 24
Show 20051+1822 BPM1985 34 72.5 27
Show 20076+1741 JEF 3 101 12.2 27
Show 20080+1816 BPM2016 252 82.1 27
Show 20047+1751 SLE 680 AB 309 18.0 28
Show 20047+1751 FYM 279 AC 203 5.8 28
Show 20085+1806 BPM2021 43 123.6 31
Show 20044+1742 BPM1971 74 114.0 36
Show 20056+1838 COU 326 256 1.8 37
Show 20077+1835 TDT2002 327 0.9 38
Show 20090+1808 HJ 2932 AB 165 13.5 39
Show 20090+1808 HJ 2932 AC 217 24.3 39
Show 20090+1808 HJ 2932 AD 322 13.0 39
Show 20039+1746 BPM1969 303 74.6 40
Show 20042+1739 SLE 679 232 5.6 41
Show 20046+1729 BPM1978 315 31.2 43
Show 20092+1822 HU 354 19 0.6 45
Show 20084+1837 HDS2870 161 0.1 45
Show 20057+1719 BPM1991 76 95.7 45
Show 20073+1718 BPM2008 19 91.1 47
Show 20033+1736 BPM1962 177 88.6 52
Show 20033+1830 STT 396 208 46.6 53
Show 20078+1852 TDT2005 147 1.6 54
Show 20028+1747 BPM1953 322 42.0 54
Show 20058+1709 BPM1996 153 72.3 55
Show 20081+1714 TDT2011 110 0.6 55
Show 20044+1715 COU 325 AB 225 0.8 57
Show 20044+1715 GII 28 AB,C 107 3.8 57
Show 20024+1744 BPM1948 BC 279 114.7 60
Show 20024+1744 BPM1947 AB 2 31.3 60
Show 20099+1836 BRT2468 48 1.9 61
Show 20097+1724 J 833 115 4.9 61
Show 20107+1750 BPM2044 18 88.9 63
Show 20041+1854 J 3047 342 4.4 64
Show 20062+1906 HJL 271 342 18.7 64
Show 20035+1715 TDT1941 165 1.1 64
Show 20039+1856 DAM 189 343 7.9 65
Show 20076+1700 BPMA239 355 241.0 65
Show 20041+1704 BUP 202 CH 185 95.6 66
Show 20065+1908 STJ 26 276 1.0 66
Show 20023+1835 ARN 109 191 30.7 67
Show 20041+1704 STT 592 AB 291 163.2 68
Show 20041+1704 STT 592 AC 335 217.0 68
Show 20041+1704 BUP 202 AD 3 89.1 68
Show 20041+1704 BUP 202 AE 51 175.0 68

 
 
WDS 20064+1802 : COMPONENTS
 
 
  A B
B pa=313.2°
sep=6.42"
 
C pa=206.1°
sep=14.36"
pa=185.5°
sep=17.36"
 
 
20064+1802 A
 
 
Coord arcsec 2000 200624.26+180239.2 Mag 11.54 PmRA -7.00 PmDE -2.0
Tycho2 1621-01884-1 HD 351504
Tycho2
Tycho2 1621-01884-1 Pflag RAmdeg 301.60107240 DEmdeg 18.04424015
PmRA -10.0 PmDE -2.3 E RAmdeg 62 E DEmdeg 69
E pmRA 1.9 E pmDE 1.9 EpRAm 1976.68 EpDEm 1972.05
Num 3 Q RAmdeg 0.6 Q DEmdeg 2.1 Q pmRA 0.6
Q pmDE 2.1 BTmag 12.134 E BTmag 0.145 VTmag 11.540
E VTmag 0.118 Prox 999 TYC HIP
CCDM RAdeg 301.60109667 DEdeg 18.04424611 EpRA 1990 1.60
EpDE 1990 1.44 E RAdeg 68.1 E DEdeg 78.0 Posflg
Corr 0.0
 
 
20064+1802 B
 
 
Coord arcsec 2000 200623.93+180243.6 Mag 13 PmRA -9.00 PmDE 2.0
Calc delta mag 1.46 Calc coord yes
 
 
20064+1802 C
 
 
Coord arcsec 2000 200623.82+180226.3 Mag 14.2 PmRA -5.00 PmDE -10.0
Calc delta mag 2.66 Calc coord yes