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Doubles in session


Current system
20500-1154
BRG 31


Nearby doubles
23' : 20508-1135
J 2324AB

27' : 20518-1154
UC 4312

48' : 20476-1123
J 1401

50' : 20531-1134
CHR 101

52' : 20472-1223
OCC1101

56' : 20466-1218
HLD 164

69' : 20500-1303
UC 4304

71' : 20457-1123
RST4068

73' : 20482-1303
HJ 2997

82' : 20555-1147
HU 81

87' : 20466-1043
KPP4343AB

89' : 20560-1143
RST4070

92' : 20506-1325
KPP2249

100' : 20433-1143
RST4067

100' : 20435-1225
TDS1095

101' : 20486-1333
RST4069

104' : 20556-1052
LV 8

105' : 20518-1336
BRT2777

110' : 20550-1316
GWP3016

111' : 20575-1142
CVR 234

114' : 20570-1242
TVB 317

116' : 20446-1030
KPP3125

117' : 20441-1038
SHN 40

126' : 20419-1115
UC 4261

126' : 20581-1237
HU 82

130' : 20426-1044
TDT2490



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.

20500-1154 BRG 31

 
 
20h 50m 00.10s -11° 54' 09.2" P.A. 343.00 sep 0.4 mag 12.99, Sp M3.5+M4.5
 
 
Coord 2000 20500-1154 Discov num BRG  31 Comp Coord arcsec 2000 20 50 00.10 -11 54 09.2
Date first 2008 Date last 2010 Obs 3
Pa first 350 Pa last 343.2 P.A. Now (θ) 343.2°
Sep first 0.5 Sep last 0.436 Sep. Now (ρ) 0.436"
Mag pri 12.99 Mag sec delta mag (ΔM) Spectral class M3.5+M4.5 (red/red)
Pri motion ra +132 Sec motion ra
Pri motion dec -008 Sec motion dec
Notes N V R (See Notes, Proper motion indicates physical, Red magnitudes)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Aquarius Gaia DR2 6889764709773196928
 
 
WDS 20500-1154 BRG 31 : NOTES
 
 
discov_num notes refcode
BRG 31 2MASS J20500010-1154092 has a close companion detected with AstraLux,
but it has not yet been confirmed through common proper motion.
However, since the separation is quite small (~0.47") and the
brightness and color of the companion is consistent with expectations,
the system counts as binary for statistical purposes. Jnn2012
 
 
REFERENCES
 
 
refcode metd author reference
Jnn2012 Cl j Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S., 2012ApJ...754...44J
Jnn2012 +E2 Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012 ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b) 2014ApJS..214...17J
 
 
DISCOVERER
 
 
idgroup discov author
1 BRG Bergfors, C. Brandner, W., Janson, M., Daemgen, S., Geissler, K., Henning, T.,
1 BRG Hippler, S., Hormuth, F., Joergens, V., & Koehler, R.
10 BRG Bergfors, C. Brandner, W., Daemgen, S., Biller, B., Hippler, S., Janson, M.,
10 BRG Kudryavtseva, N., Geissler, K., Henning, T., & Koehler, R.
11 BRG Bergfors, C. Brandner, W., Bonnefoy, M., Schlieder, J., Janson, M., Henning, Th. &
11 BRG Chauvin, G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20500-1154 BRG 31 2008 1 348 0.5 12.99   M3.5 M4.5 DR 205000.10-115409.2
20500-1154 BRG 31 2010 3 343 0.4 12.99   M3.5 M4.5 NV R 205000.10-115409.2

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

 
 
WDS 20500-1154 BRG 31 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20500-1154 BRG 31 : MEASURES
 
 
No records found.

 
 
WDS 20500-1154 : VIRTUAL EYEPIECE
 
 

20500-1154 BRG 31A mag 12.99 Sp M3.5 20500-1154 BRG 31B sep 0.4 P.A. 343.50 Sp M4.5 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 20500-1154 : ALADIN DSS IMAGE @ 20h 50m 00.10s -11° 54' 09.2"
 
 
 
 
WDS 20500-1154 BRG 31 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20500-1154 BRG 31 distance=0' 20508-1135 J 2324BC distance=23' 20508-1135 J 2324AB distance=23' 20508-1135 J 2324AC distance=23' 20518-1154 UC 4312 distance=27' 20476-1123 J 1401 distance=48' 20531-1134 CHR 101 distance=50' 20472-1223 OCC1101 distance=52' 20466-1218 HLD 164 distance=56' 20500-1303 UC 4304 distance=69' 20457-1123 RST4068 distance=71' 20482-1303 HJ 2997 distance=73' 20555-1147 HU 81 distance=82' 20466-1043 KPP4343AB distance=87' 20466-1043 KPP4343AC distance=87' 20466-1043 KPP4343BC distance=88' 20560-1143 RST4070 distance=89' 20506-1325 KPP2249 distance=92' 20433-1143 RST4067 distance=100' 20435-1225 TDS1095 distance=100' 20486-1333 RST4069 distance=101' 20556-1052 LV 8 distance=104' 20518-1336 BRT2777 distance=105' 20550-1316 GWP3016 distance=110' 20575-1142 CVR 234 distance=111' 20570-1242 TVB 317 distance=114' 20446-1030 KPP3125 distance=116' 20441-1038 SHN 40 distance=117' 20419-1115 UC 4261 distance=126' 20581-1237 HU 82 distance=126' 20426-1044 TDT2490 distance=130' 20562-1331 TDT2644 distance=133' 20442-1342 HLD 162 distance=138' 20583-1050 CVR 878 distance=138' 20415-1047 RST4675 distance=143' 20588-1300 UC 4348 distance=145' 20507-0929 HDS2970 distance=146' 20530-1416 HU 272 distance=149' 20555-1400 LDS6418AB distance=153' 20555-1400 TSN 195Aa,Ab distance=153' 20590-1311 CVR 880 distance=153' 20412-1320 WSI 163 distance=155' 20591-1313 HU 83 distance=155' 20402-1055 GWP2980 distance=156' 20412-1330 OCC 413 distance=161' 20589-1020 GWP3024 distance=161' 20406-1319 HJ 611 distance=162' 20590-1017 RST4071 distance=165' 20569-0942 BU 1034AB distance=167' 20569-0942 BU 1034AC distance=167' 21003-1312 RST4073 distance=170' 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 20500-1154 BRG 31 343 0.4
Show 20508-1135 J 2324 BC 78 4.0 23
Show 20508-1135 J 2324 AB 192 27.2 23
Show 20508-1135 J 2324 AC 183 25.8 23
Show 20518-1154 UC 4312 286 52.7 27
Show 20476-1123 J 1401 304 4.3 48
Show 20531-1134 CHR 101 183 0.2 50
Show 20472-1223 OCC1101 -1 0.0 52
Show 20466-1218 HLD 164 113 2.7 56
Show 20500-1303 UC 4304 74 64.9 69
Show 20457-1123 RST4068 159 1.0 71
Show 20482-1303 HJ 2997 196 8.4 73
Show 20555-1147 HU 81 55 0.3 82
Show 20466-1043 KPP4343 AB 317 25.5 87
Show 20466-1043 KPP4343 AC 314 26.3 87
Show 20466-1043 KPP4343 BC 261 2.5 88
Show 20560-1143 RST4070 13 1.8 89
Show 20506-1325 KPP2249 274 18.7 92
Show 20433-1143 RST4067 43 0.4 100
Show 20435-1225 TDS1095 119 1.1 100
Show 20486-1333 RST4069 179 0.3 101
Show 20556-1052 LV 8 309 1.1 104
Show 20518-1336 BRT2777 333 3.5 105
Show 20550-1316 GWP3016 352 39.8 110
Show 20575-1142 CVR 234 320 48.6 111
Show 20570-1242 TVB 317 342 7.3 114
Show 20446-1030 KPP3125 203 3.8 116
Show 20441-1038 SHN 40 28 0.3 117
Show 20419-1115 UC 4261 261 62.4 126
Show 20581-1237 HU 82 1 2.7 126
Show 20426-1044 TDT2490 209 0.6 130
Show 20562-1331 TDT2644 252 0.6 133
Show 20442-1342 HLD 162 137 1.5 138
Show 20583-1050 CVR 878 54 18.0 138
Show 20415-1047 RST4675 184 2.3 143
Show 20588-1300 UC 4348 260 18.4 145
Show 20507-0929 HDS2970 114 15.2 146
Show 20530-1416 HU 272 184 3.5 149
Show 20555-1400 LDS6418 AB 185 107.3 153
Show 20555-1400 TSN 195 Aa,Ab 190 0.1 153
Show 20590-1311 CVR 880 16 7.7 153
Show 20412-1320 WSI 163 46 10.3 155
Show 20591-1313 HU 83 99 0.3 155
Show 20402-1055 GWP2980 122 89.4 156
Show 20412-1330 OCC 413 -1 0.3 161
Show 20589-1020 GWP3024 221 182.1 161
Show 20406-1319 HJ 611 338 12.1 162
Show 20590-1017 RST4071 158 1.8 165
Show 20569-0942 BU 1034 AB 166 2.2 167
Show 20569-0942 BU 1034 AC 66 177.8 167
Show 21003-1312 RST4073 4 0.4 170

 
 
WDS 20500-1154 : COMPONENTS
 
 
  A
B pa=343.5°
sep=0.44"
 
 
20500-1154 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 205000.10-115409.2 Mag 12.99 Spectral class M3.5 (red)
PmRA 132.00 PmDE -8.0
 
 
20500-1154 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 205000.09-115408.8 Spectral class M4.5 (red) Calc delta mag 12.99
Calc coord yes