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Current system
20070-1848
HJ 2928
HD 190725


Nearby doubles
18' : 20071-1905
RST3248

50' : 20082-1934
BHA 36

51' : 20093-1925
HU 80

51' : 20091-1928
TDT2026

54' : 20080-1939
KPP1032

54' : 20058-1939
DON 978

62' : 20104-1923
HDS2873

63' : 20032-1815
RST3246

69' : 20056-1742
RST3247

74' : 20032-1940
KPP 620

81' : 20102-1954
UC 4110

89' : 20020-1754
ARU 19

98' : 20011-1756
UC 4064

98' : 20028-1729
KPP 452

101' : 19598-1852
J 1767

102' : 20007-1757
ARU 18

103' : 20097-2022
SEE 409

104' : 20019-1733
HJ 2918AB

105' : 20144-1843
ARA 796

106' : 20058-1703
FEN 36

107' : 20068-2034
HU 759

109' : 20110-1717
KPP 460

111' : 20049-2034
BRT1559

113' : 20134-1953
ARA1203

113' : 20103-2030
BEU 21

115' : 20029-2026
LDS 700



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.

20070-1848 HJ 2928 (HD 190725)

 
 
20h 06m 55.49s -18° 47' 26.6" P.A. 311.00 sep 13.5 mag 10.29,11.40 Sp G8/K0III:
 
 
Coord 2000 20070-1848 Discov num HJ 2928 Comp Coord arcsec 2000 20 06 55.49 -18 47 26.6
Date first 1830 Date last 2015 Obs 12
Pa first 302 Pa last 310.7 P.A. Now (θ) 310.7°
Sep first 7.0 Sep last 13.49 Sep. Now (ρ) 13.49"
Mag pri 10.29 Mag sec 11.40 delta mag (ΔM) 1.11 Spectral class G8/K0III: (yellow)
Pri motion ra -004 Sec motion ra -004
Pri motion dec -014 Sec motion dec +004
Notes
rPM=1.236
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 190725 Constellation Sagittarius Tycho2 6322-00815-1 Gaia DR2 6866817219204441984
HD 190725
 
 
WDS 20070-1848 HJ 2928 (HD 190725) : 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
20070-1848 HJ 2928 1998 8 310 13.4 10.29 11.40 G8/K0III: D 200655.49-184726.6
20070-1848 HJ 2928 1999 9 310 13.4 10.29 11.40 G8/K0III: D 200655.49-184726.6
20070-1848 HJ 2928 2012 10 311 14.2 10.29 11.40 G8/K0III: 200655.49-184726.6
20070-1848 HJ 2928 2015 12 311 13.5 10.29 11.40 G8/K0III: 200655.49-184726.6

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

 
 
WDS 20070-1848 HJ 2928 (HD 190725) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20070-1848 HJ 2928 (HD 190725) : MEASURES
 
 
No records found.

 
 
WDS 20070-1848 (HD 190725) : VIRTUAL EYEPIECE
 
 

20070-1848 HJ 2928A mag 10.29 Sp G8/K0III: 20070-1848 HJ 2928B sep 13.1 P.A. 312.30 mag 11.4 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 20070-1848 (HD 190725) : ALADIN DSS IMAGE @ 20h 06m 55.49s -18° 47' 26.6"
 
 
 
 
WDS 20070-1848 HJ 2928 (HD 190725) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20070-1848 HJ 2928 distance=0' 20071-1905 RST3248 distance=18' 20082-1934 BHA 36 distance=50' 20093-1925 HU 80 distance=51' 20091-1928 TDT2026 distance=51' 20080-1939 KPP1032 distance=54' 20058-1939 DON 978 distance=54' 20104-1923 HDS2873 distance=62' 20032-1815 RST3246 distance=63' 20056-1742 RST3247 distance=69' 20032-1940 KPP 620 distance=74' 20102-1954 UC 4110 distance=81' 20020-1754 ARU 19 distance=89' 20011-1756 UC 4064 distance=98' 20028-1729 KPP 452 distance=98' 19598-1852 J 1767 distance=101' 20007-1757 ARU 18 distance=102' 20097-2022 SEE 409 distance=103' 20019-1733 OCC 340Aa,Ab distance=104' 20019-1733 HJ 2918AB distance=104' 20144-1843 ARA 796 distance=105' 20058-1703 FEN 36 distance=106' 20068-2034 HU 759 distance=107' 20110-1717 KPP 460 distance=109' 20049-2034 BRT1559 distance=111' 20134-1953 ARA1203 distance=113' 20103-2030 BEU 21 distance=113' 20029-2026 LDS 700 distance=115' 19597-1940 LDS4827 distance=115' 19594-1748 GWP2914 distance=122' 20020-2029 TDT1924 distance=123' 20154-1817 RST3252 distance=125' 20157-1849 HJ 2940AB distance=125' 20157-1849 HJ 2940AC distance=125' 20157-1849 ABH 134AD distance=125' 20157-1849 ABH 134AE distance=125' 20030-2040 DON 975 distance=126' 19596-1737 HJ 2912 distance=127' 20108-1646 TDT2053 distance=134' 20151-1742 RST3251 distance=135' 19574-1907 TDT1875 distance=137' 20106-2055 AHD 14 distance=138' 19583-1745 HJ 2911 distance=139' 19585-1723 HJ 1454 distance=143' 20089-2122 BRT1560 distance=157' 20154-2030 SEE 411 distance=158' 20172-1742 FEN 37 distance=161' 20178-1803 RST3253 distance=161' 20043-1610 HJ 1465 distance=162' 20152-1651 OCC 993 distance=167' 20143-1636 HJ 2939 distance=169' 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 20070-1848 HJ 2928 311 13.5
Show 20071-1905 RST3248 122 0.7 18
Show 20082-1934 BHA 36 343 3.2 50
Show 20093-1925 HU 80 6 2.5 51
Show 20091-1928 TDT2026 198 1.7 51
Show 20080-1939 KPP1032 302 8.3 54
Show 20058-1939 DON 978 106 0.5 54
Show 20104-1923 HDS2873 226 0.1 62
Show 20032-1815 RST3246 348 1.6 63
Show 20056-1742 RST3247 162 3.8 69
Show 20032-1940 KPP 620 355 5.7 74
Show 20102-1954 UC 4110 269 39.9 81
Show 20020-1754 ARU 19 159 0.4 89
Show 20011-1756 UC 4064 168 12.5 98
Show 20028-1729 KPP 452 288 3.5 98
Show 19598-1852 J 1767 173 7.6 101
Show 20007-1757 ARU 18 94 0.4 102
Show 20097-2022 SEE 409 31 5.1 103
Show 20019-1733 OCC 340 Aa,Ab -1 0.3 104
Show 20019-1733 HJ 2918 AB 135 15.8 104
Show 20144-1843 ARA 796 80 12.3 105
Show 20058-1703 FEN 36 177 3.8 106
Show 20068-2034 HU 759 296 0.5 107
Show 20110-1717 KPP 460 68 3.9 109
Show 20049-2034 BRT1559 268 4.9 111
Show 20134-1953 ARA1203 238 10.1 113
Show 20103-2030 BEU 21 43 0.2 113
Show 20029-2026 LDS 700 129 12.6 115
Show 19597-1940 LDS4827 253 15.1 115
Show 19594-1748 GWP2914 206 140.1 122
Show 20020-2029 TDT1924 243 0.9 123
Show 20154-1817 RST3252 261 0.6 125
Show 20157-1849 HJ 2940 AB 101 35.3 125
Show 20157-1849 HJ 2940 AC 76 20.6 125
Show 20157-1849 ABH 134 AD 103 70.6 125
Show 20157-1849 ABH 134 AE 252 84.5 125
Show 20030-2040 DON 975 122 0.9 126
Show 19596-1737 HJ 2912 134 16.7 127
Show 20108-1646 TDT2053 149 2.7 134
Show 20151-1742 RST3251 263 2.9 135
Show 19574-1907 TDT1875 255 0.6 137
Show 20106-2055 AHD 14 100 10.2 138
Show 19583-1745 HJ 2911 93 20.5 139
Show 19585-1723 HJ 1454 233 15.8 143
Show 20089-2122 BRT1560 138 4.5 157
Show 20154-2030 SEE 411 2 2.5 158
Show 20172-1742 FEN 37 64 4.7 161
Show 20178-1803 RST3253 115 2.5 161
Show 20043-1610 HJ 1465 99 10.1 162
Show 20152-1651 OCC 993 -1 0.1 167
Show 20143-1636 HJ 2939 126 17.3 169

 
 
WDS 20070-1848 : COMPONENTS
 
 
  A
B pa=312.3°
sep=13.08"
 
 
20070-1848 A
 
 
Componente originario normalizzato AB Name HD 190725 Coord arcsec 2000 200655.49-184726.6 Mag 10.29
Spectral class G8/K0III: (yellow) PmRA -4.00 PmDE -14.0 Tycho2 6322-00815-1
HD 190725
Tycho2
Tycho2 6322-00815-1 Pflag RAmdeg 301.73122068 DEmdeg -18.79072800
PmRA -5.7 PmDE -12.2 E RAmdeg 32 E DEmdeg 33
E pmRA 2.0 E pmDE 2.1 EpRAm 1978.41 EpDEm 1977.31
Num 5 Q RAmdeg 0.5 Q DEmdeg 0.5 Q pmRA 0.5
Q pmDE 0.5 BTmag 11.679 E BTmag 0.113 VTmag 10.287
E VTmag 0.057 Prox 999 TYC T HIP
CCDM RAdeg 301.73123583 DEdeg -18.79069944 EpRA 1990 1.78
EpDE 1990 1.62 E RAdeg 46.7 E DEdeg 52.2 Posflg
Corr -0.2
 
 
20070-1848 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 200654.81-184717.8 Mag 11.4 PmRA -4.00
PmDE 4.0 Calc delta mag 1.11 Calc coord yes