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Doubles in session


Current system
20438-2031
HJ 2990
HD 197354


Nearby doubles
20' : 20432-2049
CHR 222AB

23' : 20453-2024
HJ 2992

28' : 20448-2054
BU 674AB

32' : 20460-2031
OCC9195

33' : 20439-1958
BRT1565

38' : 20415-2012
ARA1213

51' : 20430-1942
ARA1214

52' : 20421-2117
B 1894

55' : 20422-2122
ARA1584

60' : 20399-2008
I 1426

62' : 20434-1929
HLD 40AB

69' : 20462-2131
OCC9196

71' : 20416-1928
RST3266

73' : 20431-1919
AOT 94

73' : 20489-2037
HJ 2998AB

74' : 20400-1940
AOT 92

74' : 20458-2139
OCC 55

81' : 20384-2100
RST9008

81' : 20465-2141
B 500

82' : 20462-2145
HDS2957

82' : 20455-2148
UC 4281

85' : 20435-1907
HU 270AB

85' : 20498-2036
ARA1218

91' : 20474-2145
OCC 56

92' : 20493-1945
ALP 25

92' : 20399-1918
AOT 91



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.

20438-2031 HJ 2990 (HD 197354)

 
 
20h 43m 45.32s -20° 30' 49.2" P.A. 308.00 sep 19.6 mag 9.84,12.30 Sp A0m+A9/F0
 
 
Coord 2000 20438-2031 Discov num HJ 2990 Comp Coord arcsec 2000 20 43 45.32 -20 30 49.2
Date first 1830 Date last 2015 Obs 7
Pa first 318 Pa last 307.7 P.A. Now (θ) 307.7°
Sep first 12.0 Sep last 19.621 Sep. Now (ρ) 19.621"
Mag pri 9.84 Mag sec 12.30 delta mag (ΔM) 2.46 Spectral class A0m+A9/F0 (white/white)
Pri motion ra +010 Sec motion ra +008
Pri motion dec -001 Sec motion dec +007
Notes
rPM=0.776
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 197354 Constellation Capricornus SAO 189619 Tycho2 6339-01667-1
Gaia DR2 6857866369919074688 HD 197354
 
 
WDS 20438-2031 HJ 2990 (HD 197354) : 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
20438-2031 HJ 2990 1998 4 308 19.6 9.84 12.30 A0mA9F0 D 204345.32-203049.2
20438-2031 HJ 2990 1999 5 307 19.5 9.84 12.30 A0m A9-F0 D 204345.32-203049.2
20438-2031 HJ 2990 2010 6 308 19.6 9.84 12.30 A0m+A9/F0 204345.32-203049.2
20438-2031 HJ 2990 2015 7 308 19.6 9.84 12.30 A0m+A9/F0 204345.32-203049.2

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

 
 
WDS 20438-2031 HJ 2990 (HD 197354) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20438-2031 HJ 2990 (HD 197354) : MEASURES
 
 
No records found.

 
 
WDS 20438-2031 (HD 197354) : VIRTUAL EYEPIECE
 
 

20438-2031 HJ 2990A mag 9.84 Sp A0m 20438-2031 HJ 2990B sep 18.9 P.A. 309.50 mag 12.3 Sp A9/F0 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 20438-2031 (HD 197354) : ALADIN DSS IMAGE @ 20h 43m 45.32s -20° 30' 49.2"
 
 
 
 
WDS 20438-2031 HJ 2990 (HD 197354) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20438-2031 HJ 2990 distance=1' 20432-2049 CHR 222AB distance=20' 20432-2049 CVR 8AB,C distance=20' 20453-2024 HJ 2992 distance=23' 20448-2054 BU 674AB distance=28' 20460-2031 OCC9195 distance=32' 20439-1958 BRT1565 distance=33' 20415-2012 ARA1213 distance=38' 20430-1942 ARA1214 distance=51' 20421-2117 B 1894 distance=52' 20422-2122 ARA1584 distance=55' 20399-2008 I 1426 distance=60' 20434-1929 HLD 40CD distance=62' 20434-1929 HLD 40AB distance=62' 20434-1929 HLD 40AC distance=62' 20434-1929 HLD 40AD distance=62' 20462-2131 OCC9196 distance=69' 20416-1928 RST3266 distance=71' 20431-1919 AOT 94 distance=73' 20489-2037 HJ 2998AB distance=73' 20489-2037 BU 1494AC distance=73' 20400-1940 AOT 92 distance=74' 20458-2139 OCC 55 distance=74' 20384-2100 RST9008 distance=81' 20465-2141 B 500 distance=81' 20462-2145 HDS2957 distance=82' 20455-2148 UC 4281 distance=82' 20435-1907 HU 270AB distance=85' 20435-1907 B 2890AC distance=85' 20435-1907 AOT 95AD distance=85' 20498-2036 ARA1218 distance=85' 20474-2145 OCC 56 distance=91' 20493-1945 ALP 25 distance=92' 20399-1918 AOT 91 distance=92' 20429-1856 WOR 41 distance=96' 20452-1857 ARA 803 distance=97' 20429-1857 KUI 100AB distance=97' 20429-1857 KUI 100AC distance=97' 20429-1857 KUI 100AD distance=97' 20408-1901 BAR 55 distance=99' 20434-2218 HJ 2989 distance=108' 20512-2010 BHA 41 distance=108' 20369-1934 AOT 87 distance=112' 20358-2019 CVR1706 distance=113' 20363-2113 ARA1583 distance=114' 20485-2205 DON 994 distance=115' 20360-1948 AOT 85 distance=118' 20354-2037 ARA1212 distance=118' 20392-1850 LDS6415 distance=119' 20517-2112 UC 4310 distance=120' 20446-2230 TDT2512 distance=120' 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 20438-2031 HJ 2990 308 19.6 1
Show 20432-2049 CHR 222 AB 123 0.2 20
Show 20432-2049 CVR 8 AB,C 307 13.6 20
Show 20453-2024 HJ 2992 144 2.9 23
Show 20448-2054 BU 674 AB 99 2.0 28
Show 20460-2031 OCC9195 -1 0.0 32
Show 20439-1958 BRT1565 221 4.1 33
Show 20415-2012 ARA1213 245 1.3 38
Show 20430-1942 ARA1214 38 3.7 51
Show 20421-2117 B 1894 207 0.4 52
Show 20422-2122 ARA1584 1 11.7 55
Show 20399-2008 I 1426 225 1.6 60
Show 20434-1929 HLD 40 CD 188 4.5 62
Show 20434-1929 HLD 40 AB 356 5.2 62
Show 20434-1929 HLD 40 AC 258 144.2 62
Show 20434-1929 HLD 40 AD 255 145.6 62
Show 20462-2131 OCC9196 -1 0.0 69
Show 20416-1928 RST3266 261 2.4 71
Show 20431-1919 AOT 94 140 10.9 73
Show 20489-2037 HJ 2998 AB 140 6.0 73
Show 20489-2037 BU 1494 AC 135 92.5 73
Show 20400-1940 AOT 92 277 17.5 74
Show 20458-2139 OCC 55 -1 0.1 74
Show 20384-2100 RST9008 102 0.1 81
Show 20465-2141 B 500 124 1.5 81
Show 20462-2145 HDS2957 236 0.4 82
Show 20455-2148 UC 4281 280 7.8 82
Show 20435-1907 HU 270 AB 85 1.8 85
Show 20435-1907 B 2890 AC 32 4.8 85
Show 20435-1907 AOT 95 AD 127 38.7 85
Show 20498-2036 ARA1218 307 1.4 85
Show 20474-2145 OCC 56 -1 0.1 91
Show 20493-1945 ALP 25 163 21.1 92
Show 20399-1918 AOT 91 192 17.9 92
Show 20429-1856 WOR 41 261 3.1 96
Show 20452-1857 ARA 803 123 12.1 97
Show 20429-1857 KUI 100 AB 323 81.4 97
Show 20429-1857 KUI 100 AC 318 74.6 97
Show 20429-1857 KUI 100 AD 305 70.3 97
Show 20408-1901 BAR 55 273 4.1 99
Show 20434-2218 HJ 2989 153 29.5 108
Show 20512-2010 BHA 41 64 4.5 108
Show 20369-1934 AOT 87 133 24.9 112
Show 20358-2019 CVR1706 300 4.2 113
Show 20363-2113 ARA1583 309 5.8 114
Show 20485-2205 DON 994 85 0.6 115
Show 20360-1948 AOT 85 245 9.1 118
Show 20354-2037 ARA1212 38 12.4 118
Show 20392-1850 LDS6415 350 1.5 119
Show 20517-2112 UC 4310 318 18.7 120
Show 20446-2230 TDT2512 57 2.1 120

 
 
WDS 20438-2031 : COMPONENTS
 
 
  A
B pa=309.5°
sep=18.85"
 
 
20438-2031 A
 
 
Componente originario normalizzato AB Name HD 197354 Coord arcsec 2000 204345.32-203049.2 Mag 9.84
Spectral class A0m (white) PmRA 10.00 PmDE -1.0 SAO 189619
Tycho2 6339-01667-1 HD 197354 DM BD-21 5807
Tycho2
Tycho2 6339-01667-1 Pflag RAmdeg 310.93883646 DEmdeg -20.51368709
PmRA 14.3 PmDE -1.0 E RAmdeg 15 E DEmdeg 19
E pmRA 1.6 E pmDE 1.7 EpRAm 1988.77 EpDEm 1986.36
Num 7 Q RAmdeg 1.3 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.3 BTmag 10.137 E BTmag 0.030 VTmag 9.837
E VTmag 0.032 Prox 999 TYC T HIP
CCDM RAdeg 310.93880111 DEdeg -20.51368611 EpRA 1990 1.78
EpDE 1990 1.41 E RAdeg 15.9 E DEdeg 22.1 Posflg
Corr -0.1
SAO
SAO 189619 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 0.019 Vmag 9.1 SpType A0
Double code Source 23 CatNum 8888 DM BD-21 5807
DMcomp BDsup HD 197354 M HD 0
GC RA1950rad 5.41433424 DE1950rad -0.36119051 PmRA2000 0.0021
PmDE2000 0.017
CCDM
Ccdm 20438-2031 RComp Comp A Note1
Note2 Discov num DRAs -2.60 DDEs 12.0
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.6 Sp A0 PmNote *
PmRA 28 PmDE 19 Dm number -21 5807 Cat1 BD
Name2 189619 Cat2 SAO HD 197354 M HD
ADS BDS B10446 M ADS BDS N IDS IDS 20380S2052A
HIC
 
 
20438-2031 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204344.29-203037.2 Mag 12.3 Spectral class A9/F0 (white)
PmRA 8.00 PmDE 7.0 Calc delta mag 2.46 Calc coord yes
CCDM
Ccdm 20438-2031 RComp Comp B Note1
Note2 Discov num HJ 2990 DRAs DDEs
R dRAs Year 1907 Theta 309 Rho 19.5
Obs 2 Vmag 12.1 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10446 M ADS BDS N IDS IDS 20380S2052B
HIC