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Doubles in session


Current system
20455-0809
HJ 925
HD 197670


Nearby doubles
7' : 20452-0814
TOB 312

39' : 20430-0806
UC 4266

44' : 20456-0853
HDO 160

47' : 20446-0853
J 2320AB

50' : 20447-0721
A 2999

51' : 20432-0733
TDS1093

54' : 20455-0716
A 3000

55' : 20414-0835
HDO 159

55' : 20490-0749
UC 4297

59' : 20495-0815
TDT2563

66' : 20499-0815
J 2322AB

69' : 20448-0917
HLD 163AB

78' : 20499-0851
RST4683

80' : 20509-0815
SHN 247

84' : 20399-0804
GWP2978

84' : 20453-0646
RST4680

89' : 20475-0646
SKF1769

90' : 20482-0648
RST4681

98' : 20440-0631
GRV1138

101' : 20417-0646
CVR 872

111' : 20507-0929
HDS2970

114' : 20502-0640
FMR 19

117' : 20527-0859
TOK 342AB

120' : 20531-0728
BRT 556

127' : 20377-0900
GWP2974

128' : 20534-0719
RST4685



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.

20455-0809 HJ 925 (HD 197670)

 
 
20h 45m 32.16s -08° 08' 54.7" P.A. 174.00 sep 10.1 mag 9.44,9.70 Sp A0
 
 
Coord 2000 20455-0809 Discov num HJ  925 Comp Coord arcsec 2000 20 45 32.16 -08 08 54.7
Date first 1827 Date last 2019 Obs 16
Pa first 176 Pa last 174.4 P.A. Now (θ) 174.4°
Sep first 5.0 Sep last 10.06 Sep. Now (ρ) 10.06"
Mag pri 9.44 Mag sec 9.70 delta mag (ΔM) 0.26 Spectral class A0 (white)
Pri motion ra +003 Sec motion ra +002
Pri motion dec -013 Sec motion dec -014
Notes
rPM=0.1 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197670 Constellation Aquarius SAO 144771 Tycho2 5756-00879-1
Gaia DR2 6903862171123797888 HD 197670
 
 
WDS 20455-0809 HJ 925 (HD 197670) : 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
20455-0809 HJ 925 1998 6 175 10.0 9.44 9.70 A0 D 204532.16-080854.7
20455-0809 HJ 925 2010 8 174 10.1 9.44 9.70 A0 D 204532.16-080854.7
20455-0809 HJ 925 2012 10 174 10.1 9.44 9.70 A0 D 204532.16-080854.7
20455-0809 HJ 925 2015 12 175 10.1 9.44 9.70 A0 204532.16-080854.7
20455-0809 HJ 925 2019 15 174 10.1 9.44 9.70 A0 204532.16-080854.7

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

 
 
WDS 20455-0809 HJ 925 (HD 197670) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20455-0809 HJ 925 (HD 197670) : MEASURES
 
 
No records found.

 
 
WDS 20455-0809 (HD 197670) : VIRTUAL EYEPIECE
 
 

20455-0809 HJ 925A mag 9.44 Sp A0 20455-0809 HJ 925B sep 10.1 P.A. 174.50 mag 9.7 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 20455-0809 (HD 197670) : ALADIN DSS IMAGE @ 20h 45m 32.16s -08° 08' 54.7"
 
 
 
 
WDS 20455-0809 HJ 925 (HD 197670) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20455-0809 HJ 925 distance=0' 20452-0814 TOB 312 distance=7' 20430-0806 UC 4266 distance=39' 20456-0853 HDO 160 distance=44' 20446-0853 J 2320AB distance=47' 20446-0853 J 2320AC distance=47' 20447-0721 A 2999 distance=50' 20432-0733 TDS1093 distance=51' 20455-0716 A 3000 distance=54' 20414-0835 HDO 159 distance=55' 20490-0749 UC 4297 distance=55' 20495-0815 TDT2563 distance=59' 20499-0815 J 2322AB distance=66' 20448-0917 HLD 163AB distance=69' 20448-0917 HLD 163AC distance=69' 20499-0851 RST4683 distance=78' 20509-0815 SHN 247 distance=80' 20399-0804 GWP2978 distance=84' 20453-0646 RST4680 distance=84' 20475-0646 SKF1769 distance=89' 20482-0648 RST4681 distance=90' 20440-0631 GRV1138 distance=98' 20417-0646 CVR 872 distance=101' 20507-0929 HDS2970 distance=111' 20502-0640 FMR 19 distance=114' 20527-0859 MCA 64Aa,Ab distance=117' 20527-0859 TOK 342AB distance=117' 20531-0728 BRT 556 distance=120' 20377-0900 GWP2974 distance=127' 20534-0719 RST4685 distance=128' 20482-0601 TOK 341 distance=134' 20439-0557 RST4679 distance=134' 20391-0942 J 1400AB distance=135' 20391-0942 J 1400AC distance=135' 20531-0651 J 2326 distance=138' 20534-0657 GWP3012 distance=138' 20446-1030 KPP3125 distance=142' 20404-0610 CVR 229 distance=142' 20411-0558 BAR9004 distance=147' 20441-1038 SHN 40 distance=151' 20393-0609 BRT 555 distance=153' 20392-0609 RAS 31 distance=153' 20466-1043 KPP4343BC distance=155' 20466-1043 KPP4343AB distance=155' 20466-1043 KPP4343AC distance=155' 20349-0822 UC 4221 distance=159' 20426-1044 TDT2490 distance=162' 20468-0527 KPP 478 distance=163' 20390-0555 GWP2977 distance=166' 20375-0614 BRT 504 distance=166' 20348-0714 FAL 69 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 20455-0809 HJ 925 174 10.1
Show 20452-0814 TOB 312 26 40.8 7
Show 20430-0806 UC 4266 144 21.3 39
Show 20456-0853 HDO 160 201 5.7 44
Show 20446-0853 J 2320 AB 135 3.4 47
Show 20446-0853 J 2320 AC 54 10.5 47
Show 20447-0721 A 2999 221 2.1 50
Show 20432-0733 TDS1093 33 0.9 51
Show 20455-0716 A 3000 64 0.7 54
Show 20414-0835 HDO 159 236 8.2 55
Show 20490-0749 UC 4297 261 21.3 55
Show 20495-0815 TDT2563 92 0.6 59
Show 20499-0815 J 2322 AB 8 3.9 66
Show 20448-0917 HLD 163 AB 99 2.2 69
Show 20448-0917 HLD 163 AC 239 17.8 69
Show 20499-0851 RST4683 22 1.5 78
Show 20509-0815 SHN 247 -1 0.5 80
Show 20399-0804 GWP2978 153 9.0 84
Show 20453-0646 RST4680 235 0.1 84
Show 20475-0646 SKF1769 244 2.0 89
Show 20482-0648 RST4681 243 0.3 90
Show 20440-0631 GRV1138 50 33.2 98
Show 20417-0646 CVR 872 20 20.3 101
Show 20507-0929 HDS2970 114 15.2 111
Show 20502-0640 FMR 19 333 4.2 114
Show 20527-0859 MCA 64 Aa,Ab 127 0.0 117
Show 20527-0859 TOK 342 AB 114 503.2 117
Show 20531-0728 BRT 556 109 2.5 120
Show 20377-0900 GWP2974 180 60.3 127
Show 20534-0719 RST4685 81 2.1 128
Show 20482-0601 TOK 341 261 391.4 134
Show 20439-0557 RST4679 356 0.3 134
Show 20391-0942 J 1400 AB 21 4.6 135
Show 20391-0942 J 1400 AC 232 12.4 135
Show 20531-0651 J 2326 80 8.1 138
Show 20534-0657 GWP3012 289 119.4 138
Show 20446-1030 KPP3125 203 3.8 142
Show 20404-0610 CVR 229 73 35.1 142
Show 20411-0558 BAR9004 266 3.2 147
Show 20441-1038 SHN 40 28 0.3 151
Show 20393-0609 BRT 555 266 2.9 153
Show 20392-0609 RAS 31 142 0.5 153
Show 20466-1043 KPP4343 BC 261 2.5 155
Show 20466-1043 KPP4343 AB 317 25.5 155
Show 20466-1043 KPP4343 AC 314 26.3 155
Show 20349-0822 UC 4221 312 17.5 159
Show 20426-1044 TDT2490 209 0.6 162
Show 20468-0527 KPP 478 273 3.8 163
Show 20390-0555 GWP2977 142 108.2 166
Show 20375-0614 BRT 504 329 3.9 166
Show 20348-0714 FAL 69 53 14.2 169

 
 
WDS 20455-0809 : COMPONENTS
 
 
  A
B pa=174.5°
sep=10.06"
 
 
20455-0809 A
 
 
Componente originario normalizzato AB Name HD 197670 Coord arcsec 2000 204532.16-080854.7 Mag 9.44
Spectral class A0 (white) PmRA 3.00 PmDE -13.0 SAO 144771
Tycho2 5756-00879-1 HD 197670 DM BD-08 5466
Tycho2
Tycho2 5756-00879-1 Pflag RAmdeg 311.38403775 DEmdeg -8.14852863
PmRA 3.9 PmDE -13.1 E RAmdeg 8 E DEmdeg 11
E pmRA 1.1 E pmDE 1.1 EpRAm 1990.54 EpDEm 1989.23
Num 8 Q RAmdeg 0.8 Q DEmdeg 0.4 Q pmRA 0.7
Q pmDE 0.5 BTmag 9.710 E BTmag 0.019 VTmag 9.435
E VTmag 0.017 Prox 756 TYC T HIP
CCDM RAdeg 311.38402889 DEdeg -8.14849611 EpRA 1990 1.58
EpDE 1990 1.13 E RAdeg 8.3 E DEdeg 11.1 Posflg
Corr -0.3
SAO
SAO 144771 DelFlag RA1950 PmRA1950 0.0002
DE1950 PmDE1950 0.001 Vmag 9.1 SpType A0
Double code Source 26 CatNum 7421 DM BD-08 5466
DMcomp BDsup HD 197670 M HD 0
GC RA1950rad 5.42296248 DE1950rad -0.14540489 PmRA2000 0.0004
PmDE2000 -0.001
CCDM
Ccdm 20455-0809 RComp Comp A Note1
Note2 Discov num DRAs 2.12 DDEs 6.3
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.8 Sp A0 PmNote *
PmRA 3 PmDE 1 Dm number -08 5466 Cat1 BD
Name2 144771 Cat2 SAO HD 197670 M HD
ADS BDS B10479 M ADS BDS N IDS IDS 20401S0831A
HIC
 
 
20455-0809 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204532.23-080904.7 Mag 9.7 PmRA 2.00
PmDE -14.0 Calc delta mag 0.26 Calc coord yes
CCDM
Ccdm 20455-0809 RComp Comp B Note1
Note2 Discov num HJ 925 DRAs DDEs
R dRAs Year 1905 Theta 175 Rho 10.2
Obs 1 Vmag 10.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10479 M ADS BDS N IDS IDS 20401S0831B
HIC