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Current system
20442+1209
BPM 2240


Nearby doubles
6' : 20444+1205
A 875

14' : 20449+1219
STF2723AB

16' : 20440+1225
HJ 1566AB

17' : 20446+1154
BPM2251

23' : 20441+1258
J 1889

26' : 20429+1152
BPM2235

33' : 20420+1212
BPM2231

37' : 20450+1244
BU 64AB

37' : 20460+1235
KPP 477

39' : 20419+1150
HEI 588

41' : 20428+1244
BPM2234

42' : 20418+1231
STF2715

42' : 20426+1244
STF2718AB

43' : 20414+1157
TDT2472

45' : 20439+1255
J 1888

47' : 20440+1256
DAM 218

48' : 20410+1206
HEI 587

51' : 20465+1131
BPM2258

51' : 20460+1126
TDT2526

52' : 20440+1118
UC 4272

56' : 20426+1300
GWP2988

57' : 20439+1113
BPM2239

58' : 20457+1302
WFC 258

59' : 20424+1117
OSO 131AB

62' : 20404+1143
UC 4253

62' : 20405+1240
HEI 278



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

20442+1209 BPM 2240

 
 
20h 44m 12.07s +12° 09' 28.4" P.A. 148.00 sep 55.1 mag 14.01,15.80
 
 
Coord 2000 20442+1209 Discov num BPM2240 Comp Coord arcsec 2000 20 44 12.07 +12 09 28.4
Date first 1994 Date last 2015 Obs 8
Pa first 148 Pa last 147.5 P.A. Now (θ) 147.5°
Sep first 55.2 Sep last 55.051 Sep. Now (ρ) 55.051"
Mag pri 14.01 Mag sec 15.80 delta mag (ΔM) 1.79 Spectral class
Pri motion ra -008 Sec motion ra -004
Pri motion dec -018 Sec motion dec -002
Notes N V (See Notes, Proper motion indicates physical)
rPM=0.837
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Delphinus Gaia DR2 1754957348346903168
 
 
WDS 20442+1209 BPM 2240 : NOTES
 
 
discov_num notes refcode
BPM2240 [PM2000] 2381758 + [PM2000] 2381888. 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
20442+1209 BPM2240 1998 2 148 55.0 14.10 15.84 NV 204412.07+120928.4
20442+1209 BPM2240 2001 3 148 55.0 14.10 15.84 NV 204412.07+120928.4
20442+1209 BPM2240 2010 4 148 55.0 14.01 15.80 NV 204412.07+120928.4
20442+1209 BPM2240 2015 5 148 55.1 14.01 15.80 NV 204412.07+120928.4

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

 
 
WDS 20442+1209 BPM 2240 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20442+1209 BPM 2240 : MEASURES
 
 
No records found.

 
 
WDS 20442+1209 : VIRTUAL EYEPIECE
 
 

20442+1209 BPM2240A mag 14.01 20442+1209 BPM2240B sep 54.7 P.A. 148.10 mag 15.8 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20442+1209 : ALADIN DSS IMAGE @ 20h 44m 12.07s +12° 09' 28.4"
 
 
 
 
WDS 20442+1209 BPM 2240 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20442+1209 BPM2240 distance=0' 20444+1205 A 875 distance=6' 20449+1219 B 2910Aa,Ab distance=14' 20449+1219 STF2723AB distance=14' 20449+1219 BU 1492AC distance=14' 20440+1225 HJ 1566AB distance=16' 20440+1225 HJ 1566AC distance=16' 20446+1154 BPM2251 distance=17' 20441+1258 J 1889 distance=23' 20429+1152 BPM2235 distance=26' 20420+1212 BPM2231 distance=33' 20450+1244 D 32CD distance=35' 20450+1244 BU 64AB distance=37' 20450+1244 STTA209AC distance=37' 20450+1244 BU 64AD distance=37' 20460+1235 KPP 477 distance=37' 20419+1150 HEI 588 distance=39' 20428+1244 BPM2234 distance=41' 20418+1231 STF2715 distance=42' 20426+1244 STF2718BC distance=42' 20426+1244 STF2718AB distance=42' 20426+1244 STF2718AC distance=42' 20414+1157 TDT2472 distance=43' 20439+1255 J 1888 distance=45' 20440+1256 DAM 218 distance=47' 20410+1206 HEI 587 distance=48' 20465+1131 BPM2258 distance=51' 20460+1126 TDT2526 distance=51' 20440+1118 UC 4272 distance=52' 20426+1300 GWP2988 distance=56' 20439+1113 BPM2239 distance=57' 20457+1302 WFC 258 distance=58' 20424+1117 OSO 131AB distance=59' 20424+1117 OSO 131AC distance=59' 20424+1117 OSO 131AD distance=59' 20424+1117 OSO 131AE distance=59' 20424+1117 OSO 131AF distance=59' 20404+1143 UC 4253 distance=62' 20405+1240 HEI 278 distance=62' 20446+1312 TDS1098 distance=63' 20452+1108 BPM2254 distance=64' 20471+1257 BPM2265 distance=64' 20486+1223 BPM2273 distance=66' 20478+1119 HJ 271 distance=67' 20443+1101 BPM2242 distance=69' 20402+1248 BPM2223 distance=71' 20484+1134 BPM2270 distance=72' 20413+1111 BPM2229 distance=73' 20416+1058 J 192 distance=73' 20402+1126 BPM2224 distance=74' 20488+1248 GWP3000 distance=78' 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 20442+1209 BPM2240 148 55.1
Show 20444+1205 A 875 208 2.5 6
Show 20449+1219 B 2910 Aa,Ab 52 0.1 14
Show 20449+1219 STF2723 AB 140 1.0 14
Show 20449+1219 BU 1492 AC 30 37.0 14
Show 20440+1225 HJ 1566 AB 16 16.9 16
Show 20440+1225 HJ 1566 AC 331 32.4 16
Show 20446+1154 BPM2251 51 84.7 17
Show 20441+1258 J 1889 10 4.6 23
Show 20429+1152 BPM2235 142 114.9 26
Show 20420+1212 BPM2231 330 108.9 33
Show 20450+1244 D 32 CD 15 60.8 35
Show 20450+1244 BU 64 AB 174 0.7 37
Show 20450+1244 STTA209 AC 155 97.2 37
Show 20450+1244 BU 64 AD 117 64.3 37
Show 20460+1235 KPP 477 52 4.5 37
Show 20419+1150 HEI 588 293 2.3 39
Show 20428+1244 BPM2234 331 93.5 41
Show 20418+1231 STF2715 2 12.4 42
Show 20426+1244 STF2718 BC 346 167.3 42
Show 20426+1244 STF2718 AB 87 8.5 42
Show 20426+1244 STF2718 AC 346 167.2 42
Show 20414+1157 TDT2472 309 0.5 43
Show 20439+1255 J 1888 158 10.0 45
Show 20440+1256 DAM 218 342 5.7 47
Show 20410+1206 HEI 587 36 1.2 48
Show 20465+1131 BPM2258 45 78.9 51
Show 20460+1126 TDT2526 223 0.4 51
Show 20440+1118 UC 4272 354 60.1 52
Show 20426+1300 GWP2988 23 19.1 56
Show 20439+1113 BPM2239 101 71.9 57
Show 20457+1302 WFC 258 284 11.7 58
Show 20424+1117 OSO 131 AB 222 13.0 59
Show 20424+1117 OSO 131 AC 161 14.1 59
Show 20424+1117 OSO 131 AD 37 20.6 59
Show 20424+1117 OSO 131 AE 56 24.1 59
Show 20424+1117 OSO 131 AF 174 22.9 59
Show 20404+1143 UC 4253 315 19.7 62
Show 20405+1240 HEI 278 135 3.4 62
Show 20446+1312 TDS1098 279 0.9 63
Show 20452+1108 BPM2254 231 96.7 64
Show 20471+1257 BPM2265 51 16.1 64
Show 20486+1223 BPM2273 132 52.3 66
Show 20478+1119 HJ 271 109 7.8 67
Show 20443+1101 BPM2242 127 30.4 69
Show 20402+1248 BPM2223 290 95.3 71
Show 20484+1134 BPM2270 197 117.4 72
Show 20413+1111 BPM2229 11 85.9 73
Show 20416+1058 J 192 138 5.1 73
Show 20402+1126 BPM2224 331 104.0 74
Show 20488+1248 GWP3000 280 24.1 78

 
 
WDS 20442+1209 : COMPONENTS
 
 
  A
B pa=148.1°
sep=54.70"
 
 
20442+1209 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 204412.07+120928.4 Mag 14.01 PmRA -8.00
PmDE -18.0
 
 
20442+1209 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 204414.04+120842.0 Mag 15.8 PmRA -4.00
PmDE -2.0 Calc delta mag 1.79 Calc coord yes