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Doubles in session


Current system
21310+1256
LDS 4891 BC


Nearby doubles
4' : 21310+1251
LDS4892

10' : 21314+1302
BPM2385

19' : 21322+1301
RAO 458

19' : 21321+1243
RAO 457

29' : 21320+1319
GWP3070

31' : 21329+1240
UC 4492

45' : 21300+1213
DBR 295

47' : 21299+1212
MAA 1

47' : 21299+1211
DBR 294AB

50' : 21296+1340
BPM2380

51' : 21322+1342
SIG 6

53' : 21291+1211
BAR 56AB

58' : 21288+1341
J 162

60' : 21326+1351
HEI 286AB

65' : 21338+1345
RAO 461

65' : 21297+1356
HU 963

72' : 21356+1229
SLW1244

74' : 21309+1141
J 178

75' : 21306+1140
BPM2383

80' : 21267+1341
STF2797

80' : 21314+1414
BPM2386

81' : 21354+1344
ROE 127

86' : 21339+1139
CVR 907

93' : 21309+1427
BPM2384

93' : 21272+1408
BPM2376

94' : 21345+1414
LDS4896



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

21310+1256 LDS 4891 BC

 
 
21h 31m 04.06s +12° 54' 35.5" P.A. 177.00 sep 21.7 mag 16.98,16.68
 
 
Coord 2000 21310+1256 Discov num LDS4891 Comp BC Coord arcsec 2000 21 31 04.06 +12 54 35.5
Date first 1960 Date last 2015 Obs 6
Pa first 175 Pa last 176.8 P.A. Now (θ) 176.8°
Sep first 21.0 Sep last 21.733 Sep. Now (ρ) 21.733"
Mag pri 16.98 Mag sec 16.68 delta mag (ΔM) 0.3 Spectral class
Pri motion ra -001 Sec motion ra
Pri motion dec -004 Sec motion dec
Notes
Nature of this double is uncertain.
 
 
21310+1256 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 31 03 +12 56 04 LDS 4891 AB 2015 6 168 90.7 14.42 16.98 2.56
Show 21 31 04 +12 54 36 LDS 4891 BC 2015 6 177 21.7 16.98 16.68 0.30 <===
Triple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus Gaia DR2 1770204550965494656
 
 
WDS 21310+1256 LDS 4891 BC : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
LDS Luyten p.m. catalog (from additional DD list) ...................
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21310+1256 LDS4891 BC 1998 2 178 21.8 16.98 16.68 D 213104.06+125435.5
21310+1256 LDS4891 BC 2015 3 177 21.7 16.98 16.68 213104.06+125435.5

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

 
 
WDS 21310+1256 LDS 4891 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21310+1256 LDS 4891 BC : MEASURES
 
 
No records found.

 
 
WDS 21310+1256 : VIRTUAL EYEPIECE
 
 

21310+1256 LDS4891A mag 14.42 21310+1256 LDS4891B sep 90.7 P.A. 167.50 mag 16.98 21310+1256 LDS4891C sep 112.2 P.A. 169.30 mag 16.68 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21310+1256 : ALADIN DSS IMAGE @ 21h 31m 04.06s +12° 54' 35.5"
 
 
 
 
WDS 21310+1256 LDS 4891 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21310+1256 LDS4891BC distance=0' 21310+1256 LDS4891AB distance=2' 21310+1251 LDS4892 distance=4' 21314+1302 BPM2385 distance=10' 21322+1301 RAO 458 distance=19' 21321+1243 RAO 457 distance=19' 21320+1319 GWP3070 distance=29' 21329+1240 UC 4492 distance=31' 21300+1213 DBR 295 distance=45' 21299+1212 MAA 1 distance=47' 21299+1211 DBR 294AB distance=47' 21299+1211 DBR 294AC distance=47' 21296+1340 BPM2380 distance=50' 21322+1342 SIG 6 distance=51' 21291+1211 BAR 56AB distance=53' 21291+1211 BAR 56AC distance=53' 21288+1341 J 162 distance=58' 21326+1351 HEI 286AB distance=60' 21326+1351 HEI 286AC distance=60' 21338+1345 RAO 461 distance=65' 21297+1356 HU 963 distance=65' 21356+1229 SLW1244 distance=72' 21309+1141 J 178 distance=74' 21306+1140 BPM2383 distance=75' 21267+1341 STF2797 distance=80' 21314+1414 BPM2386 distance=80' 21354+1344 ROE 127 distance=81' 21339+1139 CVR 907 distance=86' 21309+1427 BPM2384 distance=93' 21272+1408 BPM2376 distance=93' 21345+1414 LDS4896 distance=94' 21377+1312 HJ 1667 distance=99' 21326+1121 J 1788 distance=100' 21344+1127 BU 273 distance=101' 21242+1237 HJ 282AB distance=102' 21242+1237 FYM 182AC distance=102' 21355+1414 GWP3075 distance=103' 21241+1324 LEP 173 distance=107' 21257+1140 BPM2374 distance=108' 21277+1431 HEI 285 distance=109' 21282+1440 BPM2377 distance=113' 21289+1105 STF2799AB distance=115' 21289+1105 STF2799AC distance=115' 21351+1433 BPM2395 distance=115' 21371+1142 UC 4510 distance=116' 21245+1358 LDS4883AB distance=116' 21245+1358 LDS4883AC distance=116' 21324+1450 HJ 1655 distance=118' 21290+1100 GRV 470 distance=118' 21391+1252 ROE 128 distance=118' 21291+1451 J 197 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 21310+1256 LDS4891 BC 177 21.7
Show 21310+1256 LDS4891 AB 168 90.7 2
Show 21310+1251 LDS4892 234 12.0 4
Show 21314+1302 BPM2385 16 96.4 10
Show 21322+1301 RAO 458 162 0.6 19
Show 21321+1243 RAO 457 150 1.1 19
Show 21320+1319 GWP3070 270 20.8 29
Show 21329+1240 UC 4492 19 91.7 31
Show 21300+1213 DBR 295 5 0.8 45
Show 21299+1212 MAA 1 56 1.1 47
Show 21299+1211 DBR 294 AB 348 4.1 47
Show 21299+1211 DBR 294 AC 331 1.9 47
Show 21296+1340 BPM2380 28 15.8 50
Show 21322+1342 SIG 6 233 0.1 51
Show 21291+1211 BAR 56 AB 43 1.3 53
Show 21291+1211 BAR 56 AC 42 1.3 53
Show 21288+1341 J 162 59 2.7 58
Show 21326+1351 HEI 286 AB 268 2.2 60
Show 21326+1351 HEI 286 AC 280 34.0 60
Show 21338+1345 RAO 461 102 1.1 65
Show 21297+1356 HU 963 229 0.9 65
Show 21356+1229 SLW1244 294 18.6 72
Show 21309+1141 J 178 185 2.9 74
Show 21306+1140 BPM2383 89 27.4 75
Show 21267+1341 STF2797 218 3.5 80
Show 21314+1414 BPM2386 65 116.7 80
Show 21354+1344 ROE 127 35 0.8 81
Show 21339+1139 CVR 907 156 23.0 86
Show 21309+1427 BPM2384 185 75.4 93
Show 21272+1408 BPM2376 310 77.6 93
Show 21345+1414 LDS4896 121 2.9 94
Show 21377+1312 HJ 1667 202 16.4 99
Show 21326+1121 J 1788 223 7.4 100
Show 21344+1127 BU 273 90 5.9 101
Show 21242+1237 HJ 282 AB 69 27.3 102
Show 21242+1237 FYM 182 AC 162 14.9 102
Show 21355+1414 GWP3075 193 31.7 103
Show 21241+1324 LEP 173 34 4.2 107
Show 21257+1140 BPM2374 142 74.8 108
Show 21277+1431 HEI 285 98 0.9 109
Show 21282+1440 BPM2377 82 112.5 113
Show 21289+1105 STF2799 AB 259 1.9 115
Show 21289+1105 STF2799 AC 331 135.9 115
Show 21351+1433 BPM2395 22 100.4 115
Show 21371+1142 UC 4510 203 68.3 116
Show 21245+1358 LDS4883 AB 208 1.9 116
Show 21245+1358 LDS4883 AC 66 31.3 116
Show 21324+1450 HJ 1655 32 25.5 118
Show 21290+1100 GRV 470 317 54.1 118
Show 21391+1252 ROE 128 263 1.4 118
Show 21291+1451 J 197 204 3.1 120

 
 
WDS 21310+1256 : COMPONENTS
 
 
  A B
B pa=167.5°
sep=90.74"
 
C pa=169.3°
sep=112.24"
pa=176.9°
sep=21.73"
 
 
21310+1256 A
 
 
Coord arcsec 2000 213102.72+125604.1 Mag 14.42 PmRA 12.00 PmDE -7.0
 
 
21310+1256 B
 
 
Coord arcsec 2000 213104.06+125435.5 Coord calc 213104.06+125435.5 Mag 16.98 PmRA -1.00
PmDE -4.0 Calc delta mag 2.56
 
 
21310+1256 C
 
 
Coord arcsec 2000 213104.14+125413.8 Mag 16.68 Calc delta mag 2.26 Calc coord yes