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Doubles in session


Current system
15521+2015
HJ 2794 AC


Nearby doubles
20' : 15529+2000
HU 747

47' : 15532+1931
HJ 2796

48' : 15540+1936
COU 67

51' : 15485+2015
DBR 320

56' : 15560+2013
YSC 224

67' : 15509+1911
A 2078

68' : 15503+2117
SHN 205

69' : 15506+1909
SLW1142

71' : 15570+2002
HJ 2799

74' : 15482+1925
COU 193

80' : 15465+1957
COU 66

90' : 15578+2054
A 1370

102' : 15468+1905
A 2077

107' : 15474+1851
COU 192AB

108' : 15450+1933
CBL 495

112' : 16000+2010
HDS2253

115' : 15590+1916
UC 3097

117' : 15501+1822
CVR 172

119' : 15456+1859
SLW1135

124' : 15597+1915
LDS4618

125' : 15567+2202
LDS4610

127' : 15433+1954
HJ 2790

132' : 15537+2224
GRV 915

134' : 15589+2147
STF1990AB

136' : 15507+2229
STF1979

137' : 16009+1918
A 2081AB



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.

15521+2015 HJ 2794 AC

 
 
15h 52m 03.82s +20° 14' 53.5" P.A. 9.00 sep 23.3 mag 9.01,13.90 Sp G0 dist. 89.13 pc (290.74 l.y.)
 
 
Coord 2000 15521+2015 Discov num HJ 2794 Comp AC Coord arcsec 2000 15 52 03.82 +20 14 53.5
Date first 1831 Date last 2015 Obs 13
Pa first 64 Pa last 8.6 P.A. Now (θ) 8.6°
Sep first 25.0 Sep last 23.329 Sep. Now (ρ) 23.329"
Mag pri 9.01 Mag sec 13.90 delta mag (ΔM) 4.89 Spectral class G0 (yellow)
Pri motion ra +094 Sec motion ra
Pri motion dec -060 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
15521+2015 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 142109 84044 15 52 04 +20 14 54 HJ 2794 AB 2016 14 144 23.2 9.01 12.30 3.29
Show 84044 15 52 04 +20 14 54 HJ 2794 AC 2015 13 9 23.3 9.01 13.90 4.89 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Serpens SAO 84044 HIP 77723 Tycho2 1502-00381-1
Gaia DR2 1204072885773523712 HD 142109 BD BD+20 3159 Distance 89.13
Distance ly 290.74
 
 
WDS 15521+2015 HJ 2794 AC : NOTES
 
 
discov_num notes refcode
HJ 2794 AB = LDS 980.
 
 
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
15521+2015 HJ 2794 AC 1913 3 38 23.3 9.00 13.90 G0 N 155203.82+201453.5
15521+2015 HJ 2794 AC 2000 5 13 23.0 9.00 13.90 G0 N 155203.82+201453.5
15521+2015 HJ 2794 AC 2001 6 12 22.8 9.00 13.90 G0 N 155203.82+201453.5
15521+2015 HJ 2794 AC 2013 8 9 23.0 9.00 13.90 G0 N 155203.82+201453.5
15521+2015 HJ 2794 AC 2015 9 9 23.3 9.01 13.90 G0 N 155203.82+201453.5

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

 
 
WDS 15521+2015 HJ 2794 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 15521+2015 HJ 2794 AC : MEASURES
 
 
No records found.

 
 
WDS 15521+2015 : VIRTUAL EYEPIECE
 
 

15521+2015 HJ 2794A mag 9.01 Sp G0 15521+2015 HJ 2794B sep 22.7 P.A. 145.30 mag 12.3 15521+2015 HJ 2794C sep 23.3 P.A. 8.10 mag 13.9 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 15521+2015 : ALADIN DSS IMAGE @ 15h 52m 03.82s +20° 14' 53.5"
 
 
 
 
WDS 15521+2015 HJ 2794 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

15521+2015 HJ 2794AC distance=0' 15529+2000 HU 747 distance=20' 15532+1931 HJ 2796 distance=47' 15540+1936 COU 67 distance=48' 15485+2015 DBR 320 distance=51' 15560+2013 YSC 224 distance=56' 15509+1911 A 2078 distance=67' 15503+2117 SHN 205 distance=68' 15506+1909 SLW1142 distance=69' 15570+2002 HJ 2799 distance=71' 15482+1925 COU 193 distance=74' 15465+1957 COU 66 distance=80' 15578+2054 A 1370 distance=90' 15468+1905 A 2077 distance=102' 15474+1851 COU 192AB distance=107' 15474+1851 GII 223Aa,Ab distance=107' 15450+1933 CBL 495 distance=108' 16000+2010 HDS2253 distance=112' 15590+1916 UC 3097 distance=115' 15501+1822 CVR 172 distance=117' 15456+1859 SLW1135 distance=119' 15597+1915 LDS4618 distance=124' 15567+2202 LDS4610 distance=125' 15433+1954 HJ 2790 distance=127' 15537+2224 GRV 915 distance=132' 15589+2147 STF1990AB distance=134' 15589+2147 WAL 69AD distance=134' 15589+2147 STF1990AC distance=134' 15589+2147 STF1990BC distance=134' 15507+2229 STF1979 distance=136' 16009+1918 A 2081AB distance=137' 16009+1918 GII 97Ba,Bb distance=137' 16015+2116 PST 2 distance=146' 15488+1751 LDS 979 distance=152' 15428+1859 GWP2547 distance=152' 15590+1820 SHY 691 distance=152' 15416+1940 HU 580AB distance=153' 15416+1940 BU 1451AB,C distance=153' 15416+1940 BU 1451AB,D distance=153' 15496+2244 POU3205 distance=153' 15432+1846 LDS4587 distance=155' 15525+1738 CVR1652 distance=157' 15531+2251 LDS4598 distance=157' 16019+2127 LDS4624 distance=157' 15424+1852 GWP2546 distance=161' 15519+1732 BPM 641 distance=163' 15410+2105 GRV 910 distance=163' 15581+2237 NSN 674 distance=166' 15440+1810 SHN 33 distance=169' 15440+2220 COU 106 distance=169' 15538+1726 CVR 805 distance=171' 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 15521+2015 HJ 2794 AB 144 23.2
Show 15521+2015 HJ 2794 AC 9 23.3
Show 15529+2000 HU 747 110 2.5 20
Show 15532+1931 HJ 2796 148 27.8 47
Show 15540+1936 COU 67 218 1.6 48
Show 15485+2015 DBR 320 230 2.1 51
Show 15560+2013 YSC 224 310 0.1 56
Show 15509+1911 A 2078 165 1.1 67
Show 15503+2117 SHN 205 -1 0.6 68
Show 15506+1909 SLW1142 236 26.4 69
Show 15570+2002 HJ 2799 315 15.0 71
Show 15482+1925 COU 193 282 0.5 74
Show 15465+1957 COU 66 67 0.5 80
Show 15578+2054 A 1370 227 0.3 90
Show 15468+1905 A 2077 223 0.6 102
Show 15474+1851 COU 192 AB 189 1.2 107
Show 15474+1851 GII 223 Aa,Ab 164 0.1 107
Show 15450+1933 CBL 495 164 15.2 108
Show 16000+2010 HDS2253 260 0.1 112
Show 15590+1916 UC 3097 131 27.8 115
Show 15501+1822 CVR 172 139 54.5 117
Show 15456+1859 SLW1135 288 11.6 119
Show 15597+1915 LDS4618 349 7.3 124
Show 15567+2202 LDS4610 296 27.5 125
Show 15433+1954 HJ 2790 163 11.7 127
Show 15537+2224 GRV 915 286 19.1 132
Show 15589+2147 STF1990 AB 61 56.6 134
Show 15589+2147 WAL 69 AD 262 15.0 134
Show 15589+2147 STF1990 AC 60 58.5 134
Show 15589+2147 STF1990 BC 26 4.0 134
Show 15507+2229 STF1979 246 9.3 136
Show 16009+1918 A 2081 AB 321 2.4 137
Show 16009+1918 GII 97 Ba,Bb 51 0.2 137
Show 16015+2116 PST 2 325 1.6 146
Show 15488+1751 LDS 979 258 29.2 152
Show 15428+1859 GWP2547 235 83.7 152
Show 15590+1820 SHY 691 344 999.9 152
Show 15416+1940 HU 580 AB 249 0.2 153
Show 15416+1940 BU 1451 AB,C 353 144.9 153
Show 15416+1940 BU 1451 AB,D 109 152.8 153
Show 15496+2244 POU3205 334 8.3 153
Show 15432+1846 LDS4587 217 8.5 155
Show 15525+1738 CVR1652 307 4.5 157
Show 15531+2251 LDS4598 247 38.7 157
Show 16019+2127 LDS4624 21 345.1 157
Show 15424+1852 GWP2546 232 899.3 161
Show 15519+1732 BPM 641 121 86.0 163
Show 15410+2105 GRV 910 250 7.5 163
Show 15581+2237 NSN 674 220 3.4 166
Show 15440+1810 SHN 33 357 0.3 169
Show 15440+2220 COU 106 277 0.3 169

 
 
WDS 15521+2015 : COMPONENTS
 
 
  A B
B pa=145.3°
sep=22.70"
 
C pa=8.1°
sep=23.30"
pa=347.0°
sep=42.84"
 
 
15521+2015 A
 
 
Name HD 142109 Coord arcsec 2000 155203.82+201453.5 Mag 9.01 Spectral class G0 (yellow)
PmRA 94.00 PmDE -60.0 SAO 84044 HIP 77723
Tycho2 1502-00381-1 HD 142109 BD BD+20 3159
Tycho2
Tycho2 1502-00381-1 Pflag RAmdeg 238.01615311 DEmdeg 20.24805767
PmRA 92.7 PmDE -59.5 E RAmdeg 10 E DEmdeg 11
E pmRA 1.0 E pmDE 0.9 EpRAm 1989.99 EpDEm 1988.98
Num 9 Q RAmdeg 0.9 Q DEmdeg 0.6 Q pmRA 0.9
Q pmDE 0.7 BTmag 9.676 E BTmag 0.023 VTmag 9.013
E VTmag 0.017 Prox 999 TYC T HIP 77723
CCDM RAdeg 238.01592333 DEdeg 20.24819833 EpRA 1990 1.60
EpDE 1990 1.45 E RAdeg 9.8 E DEdeg 11.8 Posflg
Corr 0.0
SAO
SAO 84044 DelFlag RA1950 PmRA1950 0.0074
DE1950 PmDE1950 -0.053 Vmag 8.7 SpType G0
Double code Source 35 CatNum 5436 DM BD+20 3159
DMcomp BDsup HD 142109 M HD 0
GC RA1950rad 4.14448263 DE1950rad 0.35600404 PmRA2000 0.0075
PmDE2000 -0.049
Hipparcos
Catalog H HIP 77723 Proxy RAhms 15 52 03.82
DEdms +20 14 53.5 Vmag 8.93 VarFlag R Vmag G
RAdeg 238.016 DEdeg 20.2482 AstroRef Plx 11.19
CCDM 15521+2015 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 142109 BD BD+20 3159
CD CP Dm number +20 3159 VIred 0.69
SpType G R SpType Coord arcsec 2000 155203.82+201453.5
Hipparcos 2
HIP 77723 Sn 5 So 0 Nc 1
RArad 4.1541613543 DErad 0.3533977916 Plx 11.22 PmRA 93.59
PmDE -59.45 E RArad 0.94 E DErad 0.71 E Plx 1.11
E pmRA 1.1 E pmDE 0.9 Hpmag 9.0412 E Hpmag 0.0022
SHp 0.017 VA 0 BV 0.622 E BV 0.015
VI 0.69
CCDM
Ccdm 15521+2015 RComp Comp A Note1
Note2 Discov num DRAs -2.19 DDEs -7.0
R dRAs 10 Year Theta Rho
Obs 3 Vmag 9.0 Sp G0 PmNote *
PmRA 81 PmDE -64 Dm number +20 3159 Cat1 BD
Name2 +20 1599 Cat2 AGK2/3 HD 142109 M HD
ADS BDS B 7420 M ADS BDS N IDS IDS 15476N2033A
HIC 77723
 
 
15521+2015 B
 
 
Coord arcsec 2000 155204.74+201434.8 Mag 12.3 Calc delta mag 3.29 Calc coord yes
CCDM
Ccdm 15521+2015 RComp Comp B Note1
Note2 Discov num HJ 2794 DRAs DDEs
R dRAs Year 1906 Theta 144 Rho 23.2
Obs 2 Vmag 12.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 7420 M ADS BDS N IDS IDS 15476N2033B
HIC
 
 
15521+2015 C
 
 
Coord arcsec 2000 155204.05+201516.6 Mag 13.9 Calc delta mag 4.89 Calc coord yes
CCDM
Ccdm 15521+2015 RComp Comp C Note1
Note2 Discov num HJ 2794 DRAs DDEs
R dRAs Year 1906 Theta 038 Rho 23.1
Obs 2 Vmag 13.9 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B 7420 M ADS BDS N IDS IDS 15476N2033C
HIC