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Doubles in session


Current system
20542-2730
B 509 AB


Nearby doubles
21' : 20543-2710
RST2168

37' : 20535-2654
RST2166

49' : 20572-2758
KPP 575

53' : 20575-2704
B 512

53' : 20543-2638
RSS 554

53' : 20533-2821
COO 290

55' : 20507-2759
HDS2971

55' : 20501-2722
HJ 5226

59' : 20556-2635
UC 4330

69' : 20535-2622
RST2167

81' : 20487-2804
FIN 8

83' : 20498-2829
LDS 725

85' : 20479-2745
STN 53

95' : 21013-2725
RST2171

100' : 21015-2748
HDS2996

102' : 21012-2810
B 514

109' : 20516-2548
RST2165

110' : 20465-2652
HJ 5220

111' : 20529-2541
HTS 14AB

113' : 20473-2625
BU 153

121' : 20456-2653
B 2891

121' : 21032-2744
SEE 435

121' : 20464-2834
RST2159

128' : 20458-2834
RST2157

129' : 20530-2937
B 506

131' : 20461-2843
RST2158



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20542-2730 B 509 AB

 
 
20h 54m 09.69s -27° 29' 53.4" P.A. 126.00 sep 7.9 mag 10.72,15.20 Sp F7V
 
 
Coord 2000 20542-2730 Discov num B   509 Comp AB Coord arcsec 2000 20 54 09.69 -27 29 53.4
Date first 1927 Date last 1999 Obs 4
Pa first 108 Pa last 125.8 P.A. Now (θ) 125.8°
Sep first 3.9 Sep last 7.931 Sep. Now (ρ) 7.931"
Mag pri 10.72 Mag sec 15.20 delta mag (ΔM) 4.48 Spectral class F7V (yellow-white)
Pri motion ra -029 Sec motion ra +037
Pri motion dec -009 Sec motion dec -031
Notes N (See Notes)
rPM=1.441
This double is not physical.
 
 
20542-2730 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 20 54 10 -27 29 53 B 509 AB 1999 4 126 7.9 10.72 15.20 4.48 <===
Show 20 54 10 -27 29 53 B 509 AC 1999 5 69 2.5 10.72 11.21 0.49
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Capricornus Gaia DR2 6801697852776251136
 
 
WDS 20542-2730 B 509 AB : NOTES
 
 
discov_num notes refcode
B 509 AC: Also known as TDT2618. The identical nature of these first
noted by Francisco Manuel Rica Romero. FMR2001
 
 
REFERENCES
 
 
refcode metd author reference
FMR2001 Mb j Rica Romero, F.M. .
FMR2001 +C Spanish American League of Astron., Circ #1, 2001
FMR2001 +E2
 
 
DISCOVERER
 
 
idgroup discov author
1 B van den Bos, W.H.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20542-2730 B 509 AB 1998 3 128 7.7 10.72 15.20 F7V N D 205409.69-272953.4
20542-2730 B 509 AB 1999 4 126 7.9 10.72 15.20 F7V N D 205409.69-272953.4

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

 
 
WDS 20542-2730 B 509 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20542-2730 B 509 AB : MEASURES
 
 
No records found.

 
 
WDS 20542-2730 : VIRTUAL EYEPIECE
 
 

20542-2730 B 509A mag 10.72 Sp F7V 20542-2730 B 509B sep 7.3 P.A. 129.10 mag 15.2 20542-2730 B 509C sep 2.3 P.A. 66.40 mag 11.21 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 20542-2730 : ALADIN DSS IMAGE @ 20h 54m 09.69s -27° 29' 53.4"
 
 
 
 
WDS 20542-2730 B 509 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20542-2730 B 509AB distance=0' 20543-2710 RST2168 distance=21' 20535-2654 RST2166 distance=37' 20572-2758 KPP 575 distance=49' 20575-2704 B 512 distance=53' 20543-2638 RSS 554 distance=53' 20533-2821 COO 290 distance=53' 20507-2759 HDS2971 distance=55' 20501-2722 HJ 5226 distance=55' 20556-2635 UC 4330 distance=59' 20535-2622 RST2167 distance=69' 20487-2804 FIN 8 distance=81' 20498-2829 LDS 725 distance=83' 20479-2745 STN 53 distance=85' 21013-2725 RST2171 distance=95' 21015-2748 HDS2996 distance=100' 21012-2810 B 514 distance=102' 20516-2548 RST2165 distance=109' 20465-2652 HJ 5220 distance=110' 20529-2541 HTS 14AB distance=111' 20529-2541 HTS 14AC distance=111' 20529-2541 HTS 14AD distance=111' 20529-2541 HTS 14AE distance=111' 20529-2541 HTS 14AF distance=111' 20473-2625 BU 153 distance=113' 20456-2653 B 2891 distance=121' 21032-2744 SEE 435 distance=121' 20464-2834 RST2159 distance=121' 20516-2927 TOK 863Aa,Ab distance=122' 20458-2834 RST2157 distance=128' 20530-2937 B 506 distance=129' 20461-2843 RST2158 distance=131' 20521-2938 FIN 5 distance=132' 20510-2525 KPP 694 distance=132' 20516-2943 DAM 668 distance=138' 20517-2947 RST2164 distance=141' 20464-2554 UC 4284 distance=142' 21035-2842 UC 4368 distance=144' 21045-2644 B 2490 distance=146' 21061-2727 KPP1653 distance=160' 20552-3008 HDS2980 distance=160' 20431-2838 RST2154 distance=161' 21011-2944 SKF2097 distance=162' 20447-2917 UC 4277 distance=165' 20430-2846 SEE 425 distance=166' 20444-2548 RST2155 distance=166' 20424-2626 UC 4263 distance=170' 21065-2642 TOI 172 distance=173' 20461-2516 EHR 17 distance=173' 20427-2855 RST2153 distance=174' 21032-2945 BRT3095 distance=181' 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 20542-2730 B 509 AB 126 7.9
Show 20542-2730 B 509 AC 69 2.5
Show 20543-2710 RST2168 25 0.6 21
Show 20535-2654 RST2166 309 0.6 37
Show 20572-2758 KPP 575 112 5.4 49
Show 20575-2704 B 512 355 0.5 53
Show 20543-2638 RSS 554 207 16.4 53
Show 20533-2821 COO 290 248 7.3 53
Show 20507-2759 HDS2971 49 0.2 55
Show 20501-2722 HJ 5226 67 18.7 55
Show 20556-2635 UC 4330 232 43.6 59
Show 20535-2622 RST2167 8 1.6 69
Show 20487-2804 FIN 8 189 2.5 81
Show 20498-2829 LDS 725 271 21.8 83
Show 20479-2745 STN 53 175 18.1 85
Show 21013-2725 RST2171 168 0.3 95
Show 21015-2748 HDS2996 109 0.5 100
Show 21012-2810 B 514 262 12.6 102
Show 20516-2548 RST2165 134 1.9 109
Show 20465-2652 HJ 5220 354 18.1 110
Show 20529-2541 HTS 14 AB 86 7.8 111
Show 20529-2541 HTS 14 AC 66 10.4 111
Show 20529-2541 HTS 14 AD 263 12.3 111
Show 20529-2541 HTS 14 AE 216 14.9 111
Show 20529-2541 HTS 14 AF 73 18.3 111
Show 20473-2625 BU 153 251 1.9 113
Show 20456-2653 B 2891 253 5.0 121
Show 21032-2744 SEE 435 295 0.3 121
Show 20464-2834 RST2159 316 3.6 121
Show 20516-2927 TOK 863 Aa,Ab 173 1.5 122
Show 20458-2834 RST2157 170 0.7 128
Show 20530-2937 B 506 317 3.2 129
Show 20461-2843 RST2158 278 1.4 131
Show 20521-2938 FIN 5 71 2.0 132
Show 20510-2525 KPP 694 58 6.2 132
Show 20516-2943 DAM 668 309 11.2 138
Show 20517-2947 RST2164 318 1.0 141
Show 20464-2554 UC 4284 110 12.5 142
Show 21035-2842 UC 4368 74 20.4 144
Show 21045-2644 B 2490 319 9.2 146
Show 21061-2727 KPP1653 186 12.7 160
Show 20552-3008 HDS2980 334 0.1 160
Show 20431-2838 RST2154 279 0.8 161
Show 21011-2944 SKF2097 152 87.6 162
Show 20447-2917 UC 4277 18 16.5 165
Show 20430-2846 SEE 425 226 7.9 166
Show 20444-2548 RST2155 353 1.2 166
Show 20424-2626 UC 4263 207 22.1 170
Show 21065-2642 TOI 172 322 1.3 173
Show 20461-2516 EHR 17 59 11.4 173
Show 20427-2855 RST2153 42 0.2 174

 
 
WDS 20542-2730 : COMPONENTS
 
 
  A B
B pa=129.1°
sep=7.35"
 
C pa=66.4°
sep=2.27"
pa=326.9°
sep=6.63"
 
 
20542-2730 A
 
 
Coord arcsec 2000 205409.69-272953.4 Mag 10.72 Spectral class F7V (yellow-white) PmRA -29.00
PmDE -9.0
 
 
20542-2730 B
 
 
Coord arcsec 2000 205410.12-272958.0 Mag 15.2 PmRA 37.00 PmDE -31.0
Calc delta mag 4.48 Calc coord yes
 
 
20542-2730 C
 
 
Coord arcsec 2000 205409.85-272952.5 Mag 11.21 PmRA 45.00 PmDE 10.0
Calc delta mag 0.49 Calc coord yes