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Current system
20517-2947
RST 2164
HD 198503


Nearby doubles
4' : 20516-2943
DAM 668

10' : 20521-2938
FIN 5

19' : 20530-2937
B 506

51' : 20552-3008
HDS2980

60' : 20519-3047
UC 4313

66' : 20500-3049
RST2161

74' : 20503-3058
LDS5911

77' : 20511-3103
RST2163

83' : 20498-2829
LDS 725

83' : 20517-3109
LDS5913

89' : 20533-2821
COO 290

90' : 20507-3116
B 997

92' : 20454-3029
HJ 5218

96' : 20516-3123
KPP2645

97' : 20447-2917
UC 4277

97' : 20461-2843
RST2158

100' : 20441-3000
SKF1248

100' : 20464-2834
RST2159

103' : 20584-3043
JSP 821

106' : 20458-2834
RST2157

108' : 20485-3126
B 996

108' : 20434-3005
LDS5909

110' : 20507-2759
HDS2971

110' : 20452-3057
FAL 70AB

110' : 20594-3031
HDS2992

111' : 20487-2804
FIN 8



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Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20517-2947 RST 2164 (HD 198503)

 
 
20h 51m 40.43s -29° 46' 51.3" P.A. 318.00 sep 1.0 mag 7.40,11.40 Sp K1IIICNII
 
 
Coord 2000 20517-2947 Discov num RST2164 Comp Coord arcsec 2000 20 51 40.43 -29 46 51.3
Date first 1934 Date last 1945 Obs 2
Pa first 316 Pa last 318.2 P.A. Now (θ) 318.2°
Sep first 1.0 Sep last 0.96 Sep. Now (ρ) 0.96"
Mag pri 7.40 Mag sec 11.40 delta mag (ΔM) 4 Spectral class K1IIICNII (yellow-orange)
Pri motion ra +028 Sec motion ra
Pri motion dec -011 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 198503 Constellation Microscopium SAO 189780 Tycho2 6934-00845-1
Gaia DR2 6794636789101323904 HD 198503 GC 29077
 
 
WDS 20517-2947 RST 2164 (HD 198503) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Rst1933 T - Rossiter, R.A. 1933MmRAS..65...27R
Rst1933 MemRAS 65, 27, 1933
Rst1937 Ma - Rossiter, R.A. 1937MmRAS..65...51R
Rst1937 MemRAS 65, 51, 1937
Rst1943 Ma - Rossiter, R.A. 1943POMic...8..133R
Rst1943 Pub. Univ. Michigan Obs. 8, 133, 1943
Rst1944 - Rossiter, R.A. 1944POMic...9....1R
Rst1944 Pub. Univ. Michigan Obs. 9, 1, 1944
Rst1947 Ma - Rossiter, R.A. 1947POMic...9....7R
Rst1947 Pub. Univ. Michigan Obs. 9, 7, 1947
Rst1955 Ma j Rossiter, R.A. 1955POMic..11....1R
Rst1955 +P+ Pub. Univ. Michigan Obs. 11, 1, 1955
Rst1964 Ma - Rossiter, R.A. 1964POMic...9...73R
Rst1964 Pub. Univ. Michigan Obs. 9, 73, 1964
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20517-2947 RST2164 1945 2 318 1.0 7.40 11.40 K1IIICNII 205140.43-294651.3

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

 
 
WDS 20517-2947 RST 2164 (HD 198503) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20517-2947 RST 2164 (HD 198503) : MEASURES
 
 
No records found.

 
 
WDS 20517-2947 (HD 198503) : VIRTUAL EYEPIECE
 
 

20517-2947 RST2164A mag 7.4 Sp K1IIICNII 20517-2947 RST2164B sep 0.9 P.A. 322.20 mag 11.4 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20517-2947 (HD 198503) : ALADIN DSS IMAGE @ 20h 51m 40.43s -29° 46' 51.3"
 
 
 
 
WDS 20517-2947 RST 2164 (HD 198503) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20517-2947 RST2164 distance=0' 20516-2943 DAM 668 distance=4' 20521-2938 FIN 5 distance=10' 20530-2937 B 506 distance=19' 20516-2927 TOK 863Aa,Ab distance=21' 20552-3008 HDS2980 distance=51' 20519-3047 UC 4313 distance=60' 20500-3049 RST2161 distance=66' 20503-3058 LDS5911 distance=74' 20511-3103 RST2163 distance=77' 20498-2829 LDS 725 distance=83' 20517-3109 LDS5913 distance=83' 20533-2821 COO 290 distance=89' 20507-3116 B 997 distance=90' 20454-3029 HJ 5218 distance=92' 20516-3123 KPP2645 distance=96' 20447-2917 UC 4277 distance=97' 20461-2843 RST2158 distance=97' 20441-3000 SKF1248 distance=100' 20464-2834 RST2159 distance=100' 20584-3043 JSP 821 distance=103' 20458-2834 RST2157 distance=106' 20485-3126 B 996 distance=108' 20434-3005 LDS5909 distance=108' 20507-2759 HDS2971 distance=110' 20452-3057 FAL 70AB distance=110' 20452-3057 TOK 340AC distance=110' 20594-3031 HDS2992 distance=110' 20487-2804 FIN 8 distance=111' 20433-2925 SKF2089 distance=112' 20431-3010 UC 4267 distance=115' 20479-3132 B 995 distance=117' 20452-3057 JSP 817CD distance=119' 21011-2944 SKF2097 distance=123' 20448-3112 TDT2516 distance=124' 20452-3120 LDS 720AB distance=126' 20452-3122 WOR 40 distance=127' 20430-2846 SEE 425 distance=129' 20424-3031 H N 101AB distance=129' 20427-2855 RST2153 distance=129' 20572-2758 KPP 575 distance=131' 20479-2745 STN 53 distance=132' 20431-2838 RST2154 distance=132' 20562-3146 B 1001 distance=133' 20412-3015 RST2152 distance=140' 20542-2730 B 509AB distance=141' 20542-2730 B 509AC distance=141' 20554-3202 TDT2631 distance=144' 20501-2722 HJ 5226 distance=147' 20561-3201 JSP 818 distance=147' 20593-3139 KPP2180 distance=150' 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 20517-2947 RST2164 318 1.0
Show 20516-2943 DAM 668 309 11.2 4
Show 20521-2938 FIN 5 71 2.0 10
Show 20530-2937 B 506 317 3.2 19
Show 20516-2927 TOK 863 Aa,Ab 173 1.5 21
Show 20552-3008 HDS2980 334 0.1 51
Show 20519-3047 UC 4313 233 12.5 60
Show 20500-3049 RST2161 271 2.6 66
Show 20503-3058 LDS5911 78 118.0 74
Show 20511-3103 RST2163 231 2.1 77
Show 20498-2829 LDS 725 271 21.8 83
Show 20517-3109 LDS5913 85 97.0 83
Show 20533-2821 COO 290 248 7.3 89
Show 20507-3116 B 997 273 0.2 90
Show 20454-3029 HJ 5218 190 9.8 92
Show 20516-3123 KPP2645 163 24.7 96
Show 20447-2917 UC 4277 18 16.5 97
Show 20461-2843 RST2158 278 1.4 97
Show 20441-3000 SKF1248 55 6.4 100
Show 20464-2834 RST2159 316 3.6 100
Show 20584-3043 JSP 821 121 2.0 103
Show 20458-2834 RST2157 170 0.7 106
Show 20485-3126 B 996 321 1.6 108
Show 20434-3005 LDS5909 146 10.6 108
Show 20507-2759 HDS2971 49 0.2 110
Show 20452-3057 FAL 70 AB 76 17.5 110
Show 20452-3057 TOK 340 AC 235 539.4 110
Show 20594-3031 HDS2992 242 0.1 110
Show 20487-2804 FIN 8 189 2.5 111
Show 20433-2925 SKF2089 284 17.7 112
Show 20431-3010 UC 4267 59 8.2 115
Show 20479-3132 B 995 288 0.5 117
Show 20452-3057 JSP 817 CD 75 2.2 119
Show 21011-2944 SKF2097 152 87.6 123
Show 20448-3112 TDT2516 60 0.6 124
Show 20452-3120 LDS 720 AB 213 999.9 126
Show 20452-3122 WOR 40 168 4.8 127
Show 20430-2846 SEE 425 226 7.9 129
Show 20424-3031 H N 101 AB 334 25.9 129
Show 20427-2855 RST2153 42 0.2 129
Show 20572-2758 KPP 575 112 5.4 131
Show 20479-2745 STN 53 175 18.1 132
Show 20431-2838 RST2154 279 0.8 132
Show 20562-3146 B 1001 212 0.3 133
Show 20412-3015 RST2152 335 0.9 140
Show 20542-2730 B 509 AB 126 7.9 141
Show 20542-2730 B 509 AC 69 2.5 141
Show 20554-3202 TDT2631 243 0.7 144
Show 20501-2722 HJ 5226 67 18.7 147
Show 20561-3201 JSP 818 357 2.2 147
Show 20593-3139 KPP2180 130 17.9 150

 
 
WDS 20517-2947 : COMPONENTS
 
 
  A
B pa=322.2°
sep=0.91"
 
 
20517-2947 A
 
 
Componente originario normalizzato AB Name HD 198503 Coord arcsec 2000 205140.43-294651.3 Mag 7.4
Spectral class K1IIICNII (yellow-orange) PmRA 28.00 PmDE -11.0 SAO 189780
Tycho2 6934-00845-1 HD 198503 GC 29077 DM CD-3018223
Tycho2
Tycho2 6934-00845-1 Pflag RAmdeg 312.91849654 DEmdeg -29.78093887
PmRA 18.2 PmDE -9.2 E RAmdeg 5 E DEmdeg 6
E pmRA 1.3 E pmDE 1.3 EpRAm 1991.31 EpDEm 1990.78
Num 11 Q RAmdeg 1.2 Q DEmdeg 1.3 Q pmRA 1.3
Q pmDE 1.4 BTmag 8.586 E BTmag 0.017 VTmag 7.370
E VTmag 0.011 Prox 999 TYC T HIP
CCDM RAdeg 312.91844806 DEdeg -29.78091667 EpRA 1990 1.72
EpDE 1990 1.37 E RAdeg 4.6 E DEdeg 5.6 Posflg
Corr -0.2
SAO
SAO 189780 DelFlag RA1950 PmRA1950 0.0037
DE1950 PmDE1950 0.013 Vmag 7.2 SpType K2
Double code Source 70 CatNum 29077 DM CD-3018223
DMcomp BDsup HD 198503 M HD 0
GC 29077 RA1950rad 5.44821742 DE1950rad -0.52305539 PmRA2000 0.0036
PmDE2000 0.011
CCDM
Ccdm 20517-2947 RComp Comp A Note1
Note2 Discov num DRAs -1.41 DDEs 10.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 7.3 Sp K2 PmNote *
PmRA 46 PmDE 13 Dm number -3018223 Cat1 CD
Name2 189780 Cat2 SAO HD 198503 M HD
ADS BDS M ADS BDS N IDS IDS 20456S3009A
HIC
 
 
20517-2947 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205140.39-294650.6 Mag 11.4 Calc delta mag 4
Calc coord yes
CCDM
Ccdm 20517-2947 RComp Comp B Note1
Note2 Discov num RST2164 DRAs DDEs
R dRAs Year 1934 Theta 317 Rho 1.0
Obs 2 Vmag 11.3 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 20456S3009B
HIC