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Doubles in session


Current system
20420+1212
BPM 2231


Nearby doubles
16' : 20410+1206
HEI 587

18' : 20414+1157
TDT2472

19' : 20418+1231
STF2715

22' : 20419+1150
HEI 588

25' : 20429+1152
BPM2235

33' : 20426+1244
STF2718AB

33' : 20442+1209
BPM2240

35' : 20428+1244
BPM2234

35' : 20440+1225
HJ 1566AB

35' : 20405+1240
HEI 278

37' : 20444+1205
A 875

37' : 20441+1258
J 1889

38' : 20404+1143
UC 4253

43' : 20446+1154
BPM2251

44' : 20449+1219
STF2723AB

45' : 20402+1248
BPM2223

49' : 20426+1300
GWP2988

50' : 20439+1255
J 1888

52' : 20391+1243
BPM2218

53' : 20402+1126
BPM2224

54' : 20440+1256
DAM 218

55' : 20450+1244
BU 64AB

56' : 20424+1117
OSO 131AB

59' : 20387+1139
GWP2975

62' : 20413+1111
BPM2229

63' : 20440+1118
UC 4272



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

20420+1212 BPM 2231

 
 
20h 41m 57.65s +12° 12' 24.5" P.A. 330.00 sep 108.9 mag 14.56,15.38
 
 
Coord 2000 20420+1212 Discov num BPM2231 Comp Coord arcsec 2000 20 41 57.65 +12 12 24.5
Date first 1995 Date last 2015 Obs 8
Pa first 330 Pa last 329.6 P.A. Now (θ) 329.6°
Sep first 108.9 Sep last 108.877 Sep. Now (ρ) 108.877"
Mag pri 14.56 Mag sec 15.38 delta mag (ΔM) 0.82 Spectral class
Pri motion ra -017 Sec motion ra -025
Pri motion dec -016 Sec motion dec -005
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.533
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1755062175610727168
 
 
WDS 20420+1212 BPM 2231 : NOTES
 
 
discov_num notes refcode
BPM2231 [PM2000] 2373040 + [PM2000] 2372773. 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
20420+1212 BPM2231 1997 2 330 108.8 14.56 15.38 NV 204157.65+121224.5
20420+1212 BPM2231 2001 3 330 108.9 14.56 15.38 NV 204157.65+121224.5
20420+1212 BPM2231 2010 4 330 108.9 14.56 15.38 NV 204157.65+121224.5
20420+1212 BPM2231 2015 5 330 108.9 14.56 15.38 NV 204157.65+121224.5

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

 
 
WDS 20420+1212 BPM 2231 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20420+1212 BPM 2231 : MEASURES
 
 
No records found.

 
 
WDS 20420+1212 : VIRTUAL EYEPIECE
 
 

20420+1212 BPM2231A mag 14.56 20420+1212 BPM2231B sep 108.2 P.A. 330.20 mag 15.38 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20420+1212 : ALADIN DSS IMAGE @ 20h 41m 57.65s +12° 12' 24.5"
 
 
 
 
WDS 20420+1212 BPM 2231 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20420+1212 BPM2231 distance=1' 20410+1206 HEI 587 distance=16' 20414+1157 TDT2472 distance=18' 20418+1231 STF2715 distance=19' 20419+1150 HEI 588 distance=22' 20429+1152 BPM2235 distance=25' 20426+1244 STF2718AB distance=33' 20426+1244 STF2718AC distance=33' 20426+1244 STF2718BC distance=33' 20442+1209 BPM2240 distance=33' 20428+1244 BPM2234 distance=35' 20440+1225 HJ 1566AB distance=35' 20440+1225 HJ 1566AC distance=35' 20405+1240 HEI 278 distance=35' 20444+1205 A 875 distance=37' 20441+1258 J 1889 distance=37' 20404+1143 UC 4253 distance=38' 20446+1154 BPM2251 distance=43' 20449+1219 B 2910Aa,Ab distance=44' 20449+1219 STF2723AB distance=44' 20449+1219 BU 1492AC distance=44' 20402+1248 BPM2223 distance=45' 20426+1300 GWP2988 distance=49' 20439+1255 J 1888 distance=50' 20391+1243 BPM2218 distance=52' 20402+1126 BPM2224 distance=53' 20440+1256 DAM 218 distance=54' 20450+1244 D 32CD distance=55' 20450+1244 BU 64AB distance=55' 20450+1244 STTA209AC distance=55' 20450+1244 BU 64AD distance=55' 20424+1117 OSO 131AB distance=56' 20424+1117 OSO 131AC distance=56' 20424+1117 OSO 131AD distance=56' 20424+1117 OSO 131AE distance=56' 20424+1117 OSO 131AF distance=56' 20387+1139 GWP2975 distance=59' 20413+1111 BPM2229 distance=62' 20440+1118 UC 4272 distance=63' 20396+1120 BPM2221 distance=63' 20460+1235 KPP 477 distance=64' 20399+1115 ENG 75AB distance=66' 20399+1115 CVN 17Aa,Ab distance=66' 20399+1115 TOK 631AC distance=66' 20439+1113 BPM2239 distance=67' 20396+1310 J 912 distance=67' 20446+1312 TDS1098 distance=71' 20373+1230 UC 4235 distance=72' 20372+1224 BPM2209 distance=72' 20416+1058 J 192 distance=73' 20401+1105 GWP2979 distance=73' 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 20420+1212 BPM2231 330 108.9 1
Show 20410+1206 HEI 587 36 1.2 16
Show 20414+1157 TDT2472 309 0.5 18
Show 20418+1231 STF2715 2 12.4 19
Show 20419+1150 HEI 588 293 2.3 22
Show 20429+1152 BPM2235 142 114.9 25
Show 20426+1244 STF2718 AB 87 8.5 33
Show 20426+1244 STF2718 AC 346 167.2 33
Show 20426+1244 STF2718 BC 346 167.3 33
Show 20442+1209 BPM2240 148 55.1 33
Show 20428+1244 BPM2234 331 93.5 35
Show 20440+1225 HJ 1566 AB 16 16.9 35
Show 20440+1225 HJ 1566 AC 331 32.4 35
Show 20405+1240 HEI 278 135 3.4 35
Show 20444+1205 A 875 208 2.5 37
Show 20441+1258 J 1889 10 4.6 37
Show 20404+1143 UC 4253 315 19.7 38
Show 20446+1154 BPM2251 51 84.7 43
Show 20449+1219 B 2910 Aa,Ab 52 0.1 44
Show 20449+1219 STF2723 AB 140 1.0 44
Show 20449+1219 BU 1492 AC 30 37.0 44
Show 20402+1248 BPM2223 290 95.3 45
Show 20426+1300 GWP2988 23 19.1 49
Show 20439+1255 J 1888 158 10.0 50
Show 20391+1243 BPM2218 252 64.4 52
Show 20402+1126 BPM2224 331 104.0 53
Show 20440+1256 DAM 218 342 5.7 54
Show 20450+1244 D 32 CD 15 60.8 55
Show 20450+1244 BU 64 AB 174 0.7 55
Show 20450+1244 STTA209 AC 155 97.2 55
Show 20450+1244 BU 64 AD 117 64.3 55
Show 20424+1117 OSO 131 AB 222 13.0 56
Show 20424+1117 OSO 131 AC 161 14.1 56
Show 20424+1117 OSO 131 AD 37 20.6 56
Show 20424+1117 OSO 131 AE 56 24.1 56
Show 20424+1117 OSO 131 AF 174 22.9 56
Show 20387+1139 GWP2975 166 5.8 59
Show 20413+1111 BPM2229 11 85.9 62
Show 20440+1118 UC 4272 354 60.1 63
Show 20396+1120 BPM2221 275 70.3 63
Show 20460+1235 KPP 477 52 4.5 64
Show 20399+1115 ENG 75 AB 6 182.2 66
Show 20399+1115 CVN 17 Aa,Ab 36 0.5 66
Show 20399+1115 TOK 631 AC 142 947.9 66
Show 20439+1113 BPM2239 101 71.9 67
Show 20396+1310 J 912 125 1.8 67
Show 20446+1312 TDS1098 279 0.9 71
Show 20373+1230 UC 4235 132 44.9 72
Show 20372+1224 BPM2209 213 61.9 72
Show 20416+1058 J 192 138 5.1 73
Show 20401+1105 GWP2979 215 7.5 73

 
 
WDS 20420+1212 : COMPONENTS
 
 
  A
B pa=330.2°
sep=108.25"
 
 
20420+1212 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204157.65+121224.5 Mag 14.56 PmRA -17.00
PmDE -16.0
 
 
20420+1212 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204153.98+121358.4 Mag 15.38 PmRA -25.00
PmDE -5.0 Calc delta mag 0.82 Calc coord yes