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Current system
20452-3122
WOR 40


Nearby doubles
2' : 20452-3120
LDS 720AB

12' : 20448-3112
TDT2516

25' : 20452-3057
FAL 70AB

30' : 20440-3147
JSP 816

37' : 20479-3132
B 995

43' : 20485-3126
B 996

54' : 20454-3029
HJ 5218

61' : 20451-3221
LDS5910

63' : 20424-3031
H N 101AB

71' : 20500-3049
RST2161

72' : 20503-3058
LDS5911

72' : 20507-3116
B 997

77' : 20431-3010
UC 4267

79' : 20434-3005
LDS5909

79' : 20511-3103
RST2163

83' : 20516-3123
KPP2645

83' : 20441-3000
SKF1248

85' : 20412-3015
RST2152

86' : 20467-3245
RST2160

86' : 20517-3109
LDS5913

93' : 20380-3122
B 992

94' : 20519-3047
UC 4313

99' : 20478-3255
WIS 343

104' : 20372-3114
HDS2943

107' : 20431-3305
UC 4268

108' : 20404-3251
SHY 781



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.

20452-3122 WOR 40

 
 
20h 45m 09.95s -31° 21' 48.5" P.A. 168.00 sep 4.8 mag 12.00,12.40
 
 
Coord 2000 20452-3122 Discov num WOR  40 Comp Coord arcsec 2000 20 45 09.95 -31 21 48.5
Date first 1978 Date last 2016 Obs 10
Pa first 171 Pa last 168.1 P.A. Now (θ) 168.1°
Sep first 5.0 Sep last 4.83 Sep. Now (ρ) 4.83"
Mag pri 12.00 Mag sec 12.40 delta mag (ΔM) 0.4 Spectral class
Pri motion ra -019 Sec motion ra +006
Pri motion dec -032 Sec motion dec -133
Notes N (See Notes)
rPM=0.782
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Microscopium Gaia DR2 6794047347789396736
 
 
WDS 20452-3122 WOR 40 : NOTES
 
 
discov_num notes refcode
WOR 40 Located ~80" south of LDS 720A, this pair has been inadvertently
observed as LDS 720BC (located ~80' south of A) on numerous occasions.
Preliminary orbital analysis of LDS 720BC showed discrepancy in
orbital motion beginning with Worley measure of 1978, hence the WOR
designation.
 
 
REFERENCES
 
 
refcode metd author reference
Wor1956a Ma - Worley, C.E. 1956PASP...68..452W
Wor1956a PASP 68, 452, 1956
Wor1956b Ma - Worley, C.E. 1956AJ.....61..162W
Wor1956b AJ 61, 162, 1956
Wor1957 Ma - Worley, C.E. 1957AJ.....62..153W
Wor1957 AJ 62, 153, 1957
Wor1960 Ma - Worley, C.E. 1960AJ.....65..156W
Wor1960 AJ 65, 156, 1960
Wor1961 Ma - Worley, C.E. 1961PASP...73..167W
Wor1961 PASP 73, 167, 1961
Wor1961 (discovery measures WOR 14 - 26; more precise measures published in Wor1962a) 1962AJ.....67..396W
Wor1962a Ma - Worley, C.E. 1962AJ.....67..396W
Wor1962a AJ 67, 396, 1962
Wor1962b Ma j Worley, C.E. 1962AJ.....67..403W
Wor1962b AJ 67, 403, 1962
Wor1963a Ma - Worley, C.E. 1963AJ.....68..114W
Wor1963a AJ 68, 114, 1963
Wor1963b orb - Worley, C.E. 1964PUSNO..18....2W
Wor1963b Pub. USNO 18, Pt. 3, 1963 (Orbit Catalog)
Wor1967a Ma - Worley, C.E. 1967AJ.....72..899W
Wor1967a AJ 72, 899, 1967
Wor1967b Ma j Worley, C.E. 1967PUSNO..18....1W
Wor1967b Pub. USNO 18, Pt. 6, 1967
Wor1969 Zp - Worley, C.E. 1969AJ.....74..764W
Wor1969 AJ 74, 764, 1969 (double-image micrometer with Lick 36in + 12 in refractors)
Wor1971 Ma j Worley, C.E. 1972PUSNO..22....1W
Wor1971 +Mb Pub. USNO 22, Pt. 2, 1971
Wor1972a Ma j Worley, C.E. 1972PUSNO..22....2W
Wor1972a +Mb Pub. USNO 22, Pt. 4, 1972
Wor1972b Mb j Worley, C.E. 1972AJ.....77..878W
Wor1972b AJ 77, 878, 1972
Wor1972c Ma - Lippincott, S.L. & Hershey, J.L. (measure by Worley) 1972AJ.....77..679L
Wor1972c AJ 77, 679, 1972
Wor1973a orb - Worley, C.E. 1973IAUDS..61....1W
Wor1973a Inf. Circ. 61, 1, 1973
Wor1973b orb - Worley, C.E. & Behall, A.L. 1973AJ.....78..650W
Wor1973b AJ 78, 650, 1973
Wor1978 Ma j Worley, C.E. 1978PUSNO..24....1W
Wor1978 +Mb Pub. USNO 24, Pt. 6, 1978
Wor1981 orb - Worley, C.E. 1981PASP...93..772W
Wor1981 PASP 93, 772, 1981
Wor1983 - Worley, C.E. & Heintz, W.D. 1983PUSNO..24g...1W
Wor1983 Pub. USNO 24, Pt. 7, 1983 (Fourth Orbit Catalog)
Wor1984 M - Worley, C.E. 1984ApJ...278L.109W
Wor1984 ApJ 278, L109, 1984 (all data also in Wor1989)
Wor1989 Ma j Worley, C.E. 1989PUSNO..25....1W
Wor1989 +Mb Pub. USNO 25, Pt. 3, 1989
Wor1998 Ma j Worley, C.E. & Mason, B.D. 1998AJ....116..917W
Wor1998 AJ 116, 917, 1998
Wor2001 - Worley, C.E., Mason, B.D., & Wycoff, G.L. 2001AJ....122.3482W
Wor2001 AJ 122, 3482, 2001
Wor2001 (description of Magnitude Difference Catalog for USNO CD-ROM; no data)
Wor9999 Po j Worley, C.E. ...................
Wor9999 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
20452-3122 WOR 40 1998 5 168 4.8 12.90 1.00 N 204509.95-312148.5
20452-3122 WOR 40 2010 6 170 4.9 12.00 12.40 N 204509.95-312148.5
20452-3122 WOR 40 2015 8 168 4.8 12.00 12.40 N 204509.95-312148.5
20452-3122 WOR 40 2016 10 168 4.8 12.00 12.40 N 204509.95-312148.5

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

 
 
WDS 20452-3122 WOR 40 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20452-3122 WOR 40 : MEASURES
 
 
No records found.

 
 
WDS 20452-3122 : VIRTUAL EYEPIECE
 
 

20452-3122 WOR 40A mag 12 20452-3122 WOR 40B sep 4.8 P.A. 169.80 mag 12.4 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 20452-3122 : ALADIN DSS IMAGE @ 20h 45m 09.95s -31° 21' 48.5"
 
 
 
 
WDS 20452-3122 WOR 40 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20452-3122 WOR 40 distance=0' 20452-3120 LDS 720AB distance=2' 20448-3112 TDT2516 distance=12' 20452-3057 JSP 817CD distance=21' 20452-3057 FAL 70AB distance=25' 20452-3057 TOK 340AC distance=25' 20440-3147 JSP 816 distance=30' 20479-3132 B 995 distance=37' 20485-3126 B 996 distance=43' 20454-3029 HJ 5218 distance=54' 20451-3221 LDS5910 distance=61' 20451-3221 KPP3118Aa,Ab distance=61' 20424-3031 H N 101AB distance=63' 20500-3049 RST2161 distance=71' 20503-3058 LDS5911 distance=72' 20507-3116 B 997 distance=72' 20431-3010 UC 4267 distance=77' 20452-3120 LDS 720BC distance=77' 20434-3005 LDS5909 distance=79' 20511-3103 RST2163 distance=79' 20516-3123 KPP2645 distance=83' 20441-3000 SKF1248 distance=83' 20412-3015 RST2152 distance=85' 20467-3245 RST2160 distance=86' 20517-3109 LDS5913 distance=86' 20380-3122 B 992 distance=93' 20519-3047 UC 4313 distance=94' 20478-3255 WIS 343 distance=99' 20372-3114 HDS2943 distance=104' 20431-3305 UC 4268 distance=107' 20404-3251 SHY 781 distance=108' 20433-2925 SKF2089 distance=119' 20510-3256 RST2162 distance=120' 20400-2940 RST2151 distance=122' 20447-2917 UC 4277 distance=126' 20353-3126 LDS5908 distance=127' 20517-2947 RST2164 distance=127' 20379-3248 BRT1810 distance=127' 20392-3304 RST2148 distance=128' 20516-2943 DAM 668 distance=129' 20501-3315 UC 4305 distance=130' 20529-3245 B 1000 distance=130' 20517-3303 UC 4311 distance=131' 20411-3327 B 993BC distance=135' 20411-3327 SEE 424A,BC distance=135' 20467-3336 HDS2960AB distance=136' 20467-3336 SKF2090AC distance=136' 20554-3202 TDT2631 distance=137' 20521-2938 FIN 5 distance=137' 20345-3131 KPP1926 distance=138' 20347-3152 RST2145 distance=138' 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 20452-3122 WOR 40 168 4.8
Show 20452-3120 LDS 720 AB 213 999.9 2
Show 20448-3112 TDT2516 60 0.6 12
Show 20452-3057 JSP 817 CD 75 2.2 21
Show 20452-3057 FAL 70 AB 76 17.5 25
Show 20452-3057 TOK 340 AC 235 539.4 25
Show 20440-3147 JSP 816 132 3.3 30
Show 20479-3132 B 995 288 0.5 37
Show 20485-3126 B 996 321 1.6 43
Show 20454-3029 HJ 5218 190 9.8 54
Show 20451-3221 LDS5910 355 283.9 61
Show 20451-3221 KPP3118 Aa,Ab 16 1.6 61
Show 20424-3031 H N 101 AB 334 25.9 63
Show 20500-3049 RST2161 271 2.6 71
Show 20503-3058 LDS5911 78 118.0 72
Show 20507-3116 B 997 273 0.2 72
Show 20431-3010 UC 4267 59 8.2 77
Show 20452-3120 LDS 720 BC 128 1.8 77
Show 20434-3005 LDS5909 146 10.6 79
Show 20511-3103 RST2163 231 2.1 79
Show 20516-3123 KPP2645 163 24.7 83
Show 20441-3000 SKF1248 55 6.4 83
Show 20412-3015 RST2152 335 0.9 85
Show 20467-3245 RST2160 138 0.5 86
Show 20517-3109 LDS5913 85 97.0 86
Show 20380-3122 B 992 247 1.3 93
Show 20519-3047 UC 4313 233 12.5 94
Show 20478-3255 WIS 343 9 525.5 99
Show 20372-3114 HDS2943 75 2.1 104
Show 20431-3305 UC 4268 40.3 107
Show 20404-3251 SHY 781 310 999.9 108
Show 20433-2925 SKF2089 284 17.7 119
Show 20510-3256 RST2162 76 0.8 120
Show 20400-2940 RST2151 57 0.2 122
Show 20447-2917 UC 4277 18 16.5 126
Show 20353-3126 LDS5908 124 248.3 127
Show 20517-2947 RST2164 318 1.0 127
Show 20379-3248 BRT1810 204 7.3 127
Show 20392-3304 RST2148 31 1.1 128
Show 20516-2943 DAM 668 309 11.2 129
Show 20501-3315 UC 4305 302 143.4 130
Show 20529-3245 B 1000 312 3.6 130
Show 20517-3303 UC 4311 335 26.1 131
Show 20411-3327 B 993 BC 40 0.4 135
Show 20411-3327 SEE 424 A,BC 335 11.2 135
Show 20467-3336 HDS2960 AB 158 0.2 136
Show 20467-3336 SKF2090 AC 190 88.1 136
Show 20554-3202 TDT2631 243 0.7 137
Show 20521-2938 FIN 5 71 2.0 137
Show 20345-3131 KPP1926 56 15.1 138
Show 20347-3152 RST2145 255 0.1 138

 
 
WDS 20452-3122 : COMPONENTS
 
 
  A
B pa=169.8°
sep=4.80"
 
 
20452-3122 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204509.95-312148.5 Mag 12 PmRA -19.00
PmDE -32.0
 
 
20452-3122 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204510.02-312153.2 Mag 12.4 PmRA 6.00
PmDE -133.0 Calc delta mag 0.4 Calc coord yes