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Doubles in session


Current system
20307+1233
BPM 2177


Nearby doubles
15' : 20311+1247
J 3244

15' : 20311+1248
J 562

21' : 20310+1213
GRV 348

26' : 20321+1220
HJ 1528

34' : 20313+1201
BRT1345

35' : 20310+1200
DAM 673

40' : 20298+1154
J 1243

40' : 20324+1202
GRV 351

42' : 20280+1244
J 1241

43' : 20279+1224
TDT2297

44' : 20293+1155
BPM2173AB

45' : 20316+1150
J 3

46' : 20337+1222
BPM2187

50' : 20340+1244
TDT2378

52' : 20327+1151
BPM2184

55' : 20340+1206
MAD 8

59' : 20329+1142
J 1AB

61' : 20346+1255
BPM2193

61' : 20272+1306
BPM2169

67' : 20270+1312
BPM2166

68' : 20309+1126
LAU 4AB

68' : 20344+1153
LDS4851

71' : 20329+1336
BRT1346

71' : 20317+1124
BPM2182

72' : 20260+1212
J 1704

73' : 20340+1326
FOX 37



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

20307+1233 BPM 2177

 
 
20h 30m 42.84s +12° 33' 21.0" P.A. 220.00 sep 71.0 mag 15.16,15.86
 
 
Coord 2000 20307+1233 Discov num BPM2177 Comp Coord arcsec 2000 20 30 42.84 +12 33 21.0
Date first 1996 Date last 2015 Obs 7
Pa first 220 Pa last 219.6 P.A. Now (θ) 219.6°
Sep first 70.7 Sep last 71.042 Sep. Now (ρ) 71.042"
Mag pri 15.16 Mag sec 15.86 delta mag (ΔM) 0.7 Spectral class
Pri motion ra +017 Sec motion ra +020
Pri motion dec +019 Sec motion dec +020
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.112 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1755777893260883072
 
 
WDS 20307+1233 BPM 2177 : NOTES
 
 
discov_num notes refcode
BPM2177 [PM2000] 2322349 + [PM2000] 2322075. Gvr2010
 
 
REFERENCES
 
 
refcode metd author reference
Gvr2010 Pa - Gavras, P. Sinachopoulos, D., Le Campion, J.F., & Cucourant, C. 2010A&A...521A 4G
Gvr2010 +T A&A 521, A4, 2010
Gvr2010 (Note: mean measures from AC2000.2, CdC2000, USNO-A2.0, Yellow Sky, and M2000
Gvr2010 catalogs, spanning years ~1900-2000)
 
 
DISCOVERER
 
 
idgroup discov author
1 BPM Bordeaux PM2000 catalogue (main catalog: separation < 2')
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+1233 BPM2177 2000 2 220 70.9 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2001 3 220 70.9 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2010 4 219 70.3 15.16 15.86 NV 203042.84+123321.0
20307+1233 BPM2177 2015 4 220 71.0 15.16 15.86 NV 203042.84+123321.0

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

 
 
WDS 20307+1233 BPM 2177 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20307+1233 BPM 2177 : MEASURES
 
 
No records found.

 
 
WDS 20307+1233 : VIRTUAL EYEPIECE
 
 

20307+1233 BPM2177A mag 15.16 20307+1233 BPM2177B sep 70.4 P.A. 218.90 mag 15.86 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20307+1233 : ALADIN DSS IMAGE @ 20h 30m 42.84s +12° 33' 21.0"
 
 
 
 
WDS 20307+1233 BPM 2177 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20307+1233 BPM2177 distance=0' 20311+1247 J 3244 distance=15' 20311+1248 J 562 distance=15' 20310+1213 GRV 348 distance=21' 20321+1220 HJ 1528 distance=26' 20313+1201 BRT1345 distance=34' 20310+1200 DAM 673 distance=35' 20298+1154 J 1243 distance=40' 20324+1202 GRV 351 distance=40' 20280+1244 J 1241 distance=42' 20279+1224 TDT2297 distance=43' 20293+1155 BPM2173AB distance=44' 20293+1155 BPM2173AC distance=44' 20316+1150 J 3 distance=45' 20337+1222 BPM2187 distance=46' 20340+1244 TDT2378 distance=50' 20327+1151 BPM2184 distance=52' 20340+1206 MAD 8 distance=55' 20329+1142 J 1AB distance=59' 20329+1142 UC 4212AC distance=59' 20346+1255 BPM2193 distance=61' 20272+1306 BPM2169 distance=61' 20270+1312 BPM2166 distance=67' 20309+1126 LAU 4AB distance=68' 20309+1126 STJ 5Aa,Ab distance=68' 20344+1153 LDS4851 distance=68' 20329+1336 BRT1346 distance=71' 20317+1124 BPM2182 distance=71' 20260+1212 J 1704 distance=72' 20340+1326 FOX 37 distance=73' 20260+1257 BPM2155 distance=74' 20308+1347 STF2688 distance=74' 20266+1148 BPM2161 distance=76' 20306+1349 HDS2932 distance=76' 20342+1333 HEI 277 distance=78' 20312+1116 CHR 99Aa,Ab distance=79' 20312+1116 STF2690A,BC distance=79' 20312+1116 HJ 269AD distance=79' 20312+1116 DA 1BC distance=79' 20345+1138 J 142 distance=79' 20356+1315 BPM2201 distance=83' 20288+1114 UC 4195 distance=84' 20350+1134 BRT3358 distance=87' 20321+1358 HJ 1527 distance=87' 20310+1402 BPM2180 distance=89' 20362+1311 BPM2202 distance=89' 20285+1110 BPM2171 distance=90' 20329+1357 BU 670AB distance=90' 20329+1357 A 3108AB,CD distance=90' 20329+1357 L 35CD distance=91' 20306+1404 AG 408 distance=91' 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 20307+1233 BPM2177 220 71.0
Show 20311+1247 J 3244 153 4.4 15
Show 20311+1248 J 562 146 2.2 15
Show 20310+1213 GRV 348 81 14.8 21
Show 20321+1220 HJ 1528 237 10.2 26
Show 20313+1201 BRT1345 197 4.9 34
Show 20310+1200 DAM 673 251 13.3 35
Show 20298+1154 J 1243 121 3.2 40
Show 20324+1202 GRV 351 12 70.6 40
Show 20280+1244 J 1241 172 1.3 42
Show 20279+1224 TDT2297 237 0.9 43
Show 20293+1155 BPM2173 AB 21 4.6 44
Show 20293+1155 BPM2173 AC 35 34.0 44
Show 20316+1150 J 3 130 2.1 45
Show 20337+1222 BPM2187 283 103.7 46
Show 20340+1244 TDT2378 129 1.4 50
Show 20327+1151 BPM2184 293 59.7 52
Show 20340+1206 MAD 8 245 20.9 55
Show 20329+1142 J 1 AB 63 2.1 59
Show 20329+1142 UC 4212 AC 256 27.7 59
Show 20346+1255 BPM2193 288 103.8 61
Show 20272+1306 BPM2169 263 28.1 61
Show 20270+1312 BPM2166 59 25.3 67
Show 20309+1126 LAU 4 AB 271 28.1 68
Show 20309+1126 STJ 5 Aa,Ab 140 0.9 68
Show 20344+1153 LDS4851 328 4.4 68
Show 20329+1336 BRT1346 205 7.9 71
Show 20317+1124 BPM2182 228 99.8 71
Show 20260+1212 J 1704 202 6.2 72
Show 20340+1326 FOX 37 57 1.3 73
Show 20260+1257 BPM2155 31 119.0 74
Show 20308+1347 STF2688 175 7.9 74
Show 20266+1148 BPM2161 343 104.2 76
Show 20306+1349 HDS2932 319 0.2 76
Show 20342+1333 HEI 277 247 0.7 78
Show 20312+1116 CHR 99 Aa,Ab 142 0.4 79
Show 20312+1116 STF2690 A,BC 255 17.8 79
Show 20312+1116 HJ 269 AD 108 23.0 79
Show 20312+1116 DA 1 BC 184 0.3 79
Show 20345+1138 J 142 242 6.5 79
Show 20356+1315 BPM2201 7 74.2 83
Show 20288+1114 UC 4195 275 70.0 84
Show 20350+1134 BRT3358 288 1.9 87
Show 20321+1358 HJ 1527 270 10.6 87
Show 20310+1402 BPM2180 301 61.2 89
Show 20362+1311 BPM2202 129 111.9 89
Show 20285+1110 BPM2171 30 40.3 90
Show 20329+1357 BU 670 AB 5 0.8 90
Show 20329+1357 A 3108 AB,CD 340 98.4 90
Show 20329+1357 L 35 CD 130 0.5 91
Show 20306+1404 AG 408 285 5.1 91

 
 
WDS 20307+1233 : COMPONENTS
 
 
  A
B pa=218.9°
sep=70.36"
 
 
20307+1233 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 203042.84+123321.0 Mag 15.16 PmRA 17.00
PmDE 19.0
 
 
20307+1233 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 203039.82+123226.3 Mag 15.86 PmRA 20.00
PmDE 20.0 Calc delta mag 0.7 Calc coord yes