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Doubles in session


Current system
20457-3736
HJ 5216
HD 197557


Nearby doubles
46' : 20448-3653
UC 4278

57' : 20502-3719
BRT1813

66' : 20478-3636
LWR 17

79' : 20506-3645
B 2893

83' : 20521-3810
SEE 429

83' : 20503-3839
B 503

89' : 20419-3853
TOI2247

92' : 20442-3607
UC 4273

93' : 20435-3905
TDT2501

99' : 20442-3914
WSP 7AB

99' : 20436-3912
TDT2502

104' : 20542-3714
BRT1815

106' : 20530-3836
TOI 154

106' : 20539-3658
B 507

107' : 20516-3618
B 998

107' : 20369-3713
KPP1356

115' : 20381-3627
KPP3107

115' : 20497-3921
B 502

116' : 20364-3706
B 2888

119' : 20361-3814
HJ 5208

127' : 20506-3545
TDT2573

128' : 20436-3532
HJ 5215

131' : 20433-3945
WG 262

134' : 20501-3534
HDS2969

135' : 20562-3828
TDT2645AB

136' : 20570-3748
NSN 489



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.

20457-3736 HJ 5216 (HD 197557)

 
 
20h 45m 41.07s -37° 36' 33.6" P.A. 22.00 sep 15.6 mag 10.10,10.55 Sp F7IV+F8IV
 
 
Coord 2000 20457-3736 Discov num HJ 5216 Comp Coord arcsec 2000 20 45 41.07 -37 36 33.6
Date first 1836 Date last 2016 Obs 17
Pa first 18 Pa last 21.6 P.A. Now (θ) 21.6°
Sep first 12.0 Sep last 15.622 Sep. Now (ρ) 15.622"
Mag pri 10.10 Mag sec 10.55 delta mag (ΔM) 0.45 Spectral class F7IV+F8IV (yellow-white/yellow-white)
Pri motion ra -010 Sec motion ra -012
Pri motion dec +010 Sec motion dec +010
Notes T (Parallax indicates physical)
rPM=0.128 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197557 Constellation Microscopium Tycho2 7963-01588-1 Gaia DR2 6778218847115665792
HD 197557 DM CP-38 8098
 
 
WDS 20457-3736 HJ 5216 (HD 197557) : 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
20457-3736 HJ 5216 2000 12 22 15.7 10.10 10.55 G0 D 204541.07-373633.6
20457-3736 HJ 5216 2010 14 22 15.5 10.10 10.55 F7IV+F8IV Y 204541.07-373633.6
20457-3736 HJ 5216 2015 15 22 15.6 10.10 10.55 F7IV+F8IV Y 204541.07-373633.6
20457-3736 HJ 5216 2016 17 22 15.6 10.10 10.55 F7IV+F8IV T 204541.07-373633.6

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

 
 
WDS 20457-3736 HJ 5216 (HD 197557) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20457-3736 HJ 5216 (HD 197557) : MEASURES
 
 
No records found.

 
 
WDS 20457-3736 (HD 197557) : VIRTUAL EYEPIECE
 
 

20457-3736 HJ 5216A mag 10.1 Sp F7IV 20457-3736 HJ 5216B sep 15.2 P.A. 17.40 mag 10.55 Sp F8IV 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 20457-3736 (HD 197557) : ALADIN DSS IMAGE @ 20h 45m 41.07s -37° 36' 33.6"
 
 
 
 
WDS 20457-3736 HJ 5216 (HD 197557) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20457-3736 HJ 5216 distance=0' 20448-3653 UC 4278 distance=46' 20502-3719 BRT1813 distance=57' 20478-3636 LWR 17 distance=66' 20506-3645 B 2893 distance=79' 20521-3810 SEE 429 distance=83' 20503-3839 B 503 distance=83' 20419-3853 TOI2247 distance=89' 20442-3607 UC 4273 distance=92' 20435-3905 TDT2501 distance=93' 20442-3914 WSP 7AB distance=99' 20442-3914 WSP 7AC distance=99' 20436-3912 TDT2502 distance=99' 20542-3714 BRT1815 distance=104' 20530-3836 TOI 154 distance=106' 20539-3658 B 507 distance=106' 20516-3618 B 998 distance=107' 20369-3713 KPP1356 distance=107' 20381-3627 KPP3107 distance=115' 20497-3921 B 502 distance=115' 20364-3706 B 2888 distance=116' 20361-3814 HJ 5208 distance=119' 20506-3545 TDT2573 distance=127' 20436-3532 HJ 5215 distance=128' 20433-3945 WG 262 distance=131' 20501-3534 HDS2969 distance=134' 20562-3828 TDT2645AB distance=135' 20570-3748 NSN 489 distance=136' 20501-3943 R 326 distance=136' 20480-3523 B 2892 distance=137' 20576-3745 B 2488 distance=143' 20579-3743 HJ 5236 distance=145' 20452-3510 SEE 428 distance=147' 20401-3920 SEE 422 distance=147' 20392-3945 UC 4244 distance=150' 20437-3509 KPP 941 distance=150' 20582-3711 WIS 345 distance=152' 20584-3735 SKF1251 distance=152' 20338-3643 HDS2939 distance=153' 20518-3523 KPP1661 distance=153' 20563-3916 TDT2646 distance=160' 20452-4017 CRU9013AB distance=161' 20452-4017 DAM 815AC distance=161' 20521-3517 RST3270 distance=161' 20492-4012 TSN 194 distance=161' 20532-3521 BRT1814 distance=163' 20523-4000 SKF1097 distance=163' 20360-3934 UC 4228 distance=164' 20404-4012 WG 260 distance=165' 20595-3718 JSP 820 distance=166' 20318-3723 RST3262 distance=167' 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 20457-3736 HJ 5216 22 15.6
Show 20448-3653 UC 4278 250 22.0 46
Show 20502-3719 BRT1813 296 5.4 57
Show 20478-3636 LWR 17 20 9.0 66
Show 20506-3645 B 2893 297 9.7 79
Show 20521-3810 SEE 429 179 3.4 83
Show 20503-3839 B 503 116 2.5 83
Show 20419-3853 TOI2247 347 0.3 89
Show 20442-3607 UC 4273 22 17.6 92
Show 20435-3905 TDT2501 52 0.5 93
Show 20442-3914 WSP 7 AB 229 4.5 99
Show 20442-3914 WSP 7 AC 137 14.3 99
Show 20436-3912 TDT2502 230 0.7 99
Show 20542-3714 BRT1815 207 4.2 104
Show 20530-3836 TOI 154 203 0.2 106
Show 20539-3658 B 507 215 0.5 106
Show 20516-3618 B 998 288 0.5 107
Show 20369-3713 KPP1356 244 10.2 107
Show 20381-3627 KPP3107 325 6.6 115
Show 20497-3921 B 502 113 1.3 115
Show 20364-3706 B 2888 259 13.3 116
Show 20361-3814 HJ 5208 277 9.2 119
Show 20506-3545 TDT2573 74 0.4 127
Show 20436-3532 HJ 5215 183 22.8 128
Show 20433-3945 WG 262 199 3.3 131
Show 20501-3534 HDS2969 174 0.1 134
Show 20562-3828 TDT2645 AB 241 0.7 135
Show 20570-3748 NSN 489 348 2.7 136
Show 20501-3943 R 326 293 40.3 136
Show 20480-3523 B 2892 104 8.1 137
Show 20576-3745 B 2488 226 2.4 143
Show 20579-3743 HJ 5236 308 5.9 145
Show 20452-3510 SEE 428 188 4.4 147
Show 20401-3920 SEE 422 242 20.9 147
Show 20392-3945 UC 4244 129 43.9 150
Show 20437-3509 KPP 941 156 7.7 150
Show 20582-3711 WIS 345 7 35.3 152
Show 20584-3735 SKF1251 217 148.1 152
Show 20338-3643 HDS2939 161 0.3 153
Show 20518-3523 KPP1661 42 12.8 153
Show 20563-3916 TDT2646 242 1.6 160
Show 20452-4017 CRU9013 AB 101 70.2 161
Show 20452-4017 DAM 815 AC 180 19.5 161
Show 20521-3517 RST3270 338 2.5 161
Show 20492-4012 TSN 194 187 0.0 161
Show 20532-3521 BRT1814 258 4.0 163
Show 20523-4000 SKF1097 2 9.6 163
Show 20360-3934 UC 4228 177 45.9 164
Show 20404-4012 WG 260 31 6.2 165
Show 20595-3718 JSP 820 247 1.4 166
Show 20318-3723 RST3262 67 3.4 167

 
 
WDS 20457-3736 : COMPONENTS
 
 
  A
B pa=17.4°
sep=15.22"
 
 
20457-3736 A
 
 
Componente originario normalizzato AB Name HD 197557 Coord arcsec 2000 204541.07-373633.6 Mag 10.1
Spectral class F7IV (yellow-white) PmRA -10.00 PmDE 10.0 Tycho2 7963-01588-1
HD 197557 DM CD-3814203
Tycho2
Tycho2 7963-01588-1 Pflag RAmdeg 311.42113497 DEmdeg -37.60932273
PmRA -11.3 PmDE 5.2 E RAmdeg 19 E DEmdeg 23
E pmRA 1.8 E pmDE 1.7 EpRAm 1990.41 EpDEm 1989.52
Num 4 Q RAmdeg 1.6 Q DEmdeg 2.6 Q pmRA 1.7
Q pmDE 2.7 BTmag 10.729 E BTmag 0.037 VTmag 10.104
E VTmag 0.031 Prox 157 TYC T HIP
CCDM RAdeg 311.42116806 DEdeg -37.60933444 EpRA 1990 1.74
EpDE 1990 1.66 E RAdeg 19.3 E DEdeg 22.8 Posflg
Corr -0.3
CCDM
Ccdm 20457-3736 RComp Comp A Note1
Note2 Discov num DRAs -0.87 DDEs -34.6
R dRAs 80 Year Theta Rho
Obs 2 Vmag 10.0 Sp G0 PmNote
PmRA PmDE Dm number -3814203 Cat1 CD
Name2 -38 8099 Cat2 CPD HD 197557 M HD
ADS BDS M ADS BDS N IDS IDS 20393S3758A
HIC
 
 
20457-3736 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204541.45-373619.1 Mag 10.55 Spectral class F8IV (yellow-white)
PmRA -12.00 PmDE 10.0 Tycho2 7963-01587-1 DM CP-38 8098
Calc delta mag 0.45 Calc coord yes
Tycho2
Tycho2 7963-01587-1 Pflag RAmdeg 311.42319477 DEmdeg -37.60527775
PmRA -8.1 PmDE 8.2 E RAmdeg 25 E DEmdeg 30
E pmRA 1.7 E pmDE 1.7 EpRAm 1988.74 EpDEm 1987.36
Num 6 Q RAmdeg 1.5 Q DEmdeg 0.7 Q pmRA 1.5
Q pmDE 0.7 BTmag 11.022 E BTmag 0.047 VTmag 10.548
E VTmag 0.043 Prox 157 TYC T HIP
CCDM RAdeg 311.42321889 DEdeg -37.60529611 EpRA 1990 1.76
EpDE 1990 1.68 E RAdeg 25.8 E DEdeg 31.1 Posflg
Corr -0.3
CCDM
Ccdm 20457-3736 RComp Comp B Note1
Note2 Discov num HJ 5216 DRAs -0.38 DDEs -20.1
R dRAs 90 Year 1880 Theta 022 Rho 15.7
Obs 3 Vmag 10.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 -38 8098 Cat2 CPD HD M HD
ADS BDS M ADS BDS N IDS IDS 20393S3758B
HIC