01226+1245 BU 1360 AB

 
 
01h 22m 36.60s +12° 45' 03.4" P.A. 24.00 sep 5.7 mag 9.62,11.76 Sp K5 dist. 46.43 pc (151.45 l.y.)
 
 
Coord 2000 01226+1245 Discov num BU 1360 Comp AB Coord arcsec 2000 01 22 36.60 +12 45 03.4
Date first 1903 Date last 2018 Obs 25
Pa first 32 Pa last 23.7 P.A. Now (θ) 23.7°
Sep first 5.1 Sep last 5.65 Sep. Now (ρ) 5.65"
Mag pri 9.62 Mag sec 11.76 delta mag (ΔM) 2.14 Spectral class K5 (yellow-orange)
Pri motion ra +402 Sec motion ra +396
Pri motion dec +011 Sec motion dec +016
Notes V W (Proper motion indicates physical, )
rPM=0.019 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pisces HIP 6431 Tycho2 0620-00901-1 ADS 1104
BD BD+12 168 Distance 46.43 Distance ly 151.45
 
 
WDS 01226+1245 BU 1360 AB : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Bu_1873a Ma - Burnham, S.W. (BU 1 - 81) 1873MNRAS..33..351B
Bu_1873a MNRAS 33, 351, 1873
Bu_1873b Ma - Burnham, S.W. (BU 82 - 106) 1873MNRAS..33..437B
Bu_1873b MNRAS 33, 437, 1873
Bu_1873c - Burnham, S.W. 1873MNRAS..33..567B
Bu_1873c MNRAS 33, 567, 1873
Bu_1873d Ma - Burnham, S.W. (BU 107 - 182) 1873MNRAS..34...59B
Bu_1873d MNRAS 34, 59, 1873
Bu_1874a Ma - Burnham, S.W. (BU 183 - 229) 1874MNRAS..34..382B
Bu_1874a MNRAS 34, 382, 1874
Bu_1874b Ma - Burnham, S.W. (BU 230 - 300) 1874MNRAS..35...31B
Bu_1874b MNRAS 35, 31, 1874
Bu_1874c - Burnham, S.W. 1874MNRAS..34..370B
Bu_1874c MNRAS 34, 370, 1874
Bu_1874d Ma - Burnham, S.W. 1874MNRAS..34..393B
Bu_1874d MNRAS 34, 393, 1874
Bu_1874e Ma - Burnham, S.W. 1874MNRAS..35...28B
Bu_1874e MNRAS 35, 28, 1874
Bu_1875 Ma - Burnham, S.W. (BU 301 - 390) 1875AN.....86..337B
Bu_1875 AN 86, 337, 1875
Bu_1876 Ma - Burnham, S.W. (BU 391 - 436) 1876AN.....88..225B
Bu_1876 AN 88, 225, 1876
Bu_1876b - Burnham, S.W. 1876MNRAS..36...99B
Bu_1876b MNRAS 36, 99, 1876
Bu_1876c - Burnham, S.W. 1876MNRAS..36..331B
Bu_1876c MNRAS 36, 331, 1876 (no new data)
Bu_1877 Ma - Burnham, S.W. (BU 453 - 482) 1877MNRAS..38...78B
Bu_1877 MNRAS 38, 78, 1877
Bu_1878a Ma - Burnham, S.W. 1878MNRAS..38..408B
Bu_1878a MNRAS 38, 408, 1878
Bu_1878b - Burnham, S.W. 1878MNRAS..38..476B
Bu_1878b MNRAS 38, 476, 1878
Bu_1878c - Burnham, S.W. 1878MNRAS..38..478B
Bu_1878c MNRAS 38, 478, 1878
Bu_1878d Ma j Burnham, S.W. 1878AN.....92..235B
Bu_1878d AN 92, 235, 1878
Bu_1879 Ma j Burnham, S.W. 1879MmRAS..44..141B
Bu_1879 MemRAS 44, 141, 1879
Bu_1879B Ma - Burnham, S.W. 1879Obs.....3...20G
Bu_1879B cited by Gledhill (Obs 3, 20, 1879)
Bu_1879C Ma - Burnham, S.W. 1879Obs.....3..142G
Bu_1879C cited by Gledhill (Obs 3, 142, 1879)
Bu_1879d Ma - Burnham, S.W. 1879Obs.....3...92B
Bu_1879d Obs 3, 92, 1879
Bu_1879e Ma - Burnham, S.W. 1879MNRAS..40...99B
Bu_1879e MNRAS 40, 99, 1879
Bu_1880A Ma - Burnham, S.W. 1880Obs.....3..508G
Bu_1880A cited by Gledhill (Obs 3, 508, 1880)
Bu_1880C Ma - Burnham, S.W. 1880Obs.....3..314G
Bu_1880C cited by Gledhill (Obs 3, 314, 1880)
Bu_1880D Ma - Burnham, S.W. 1880Obs.....3..352G
Bu_1880D cited by Gledhill (Obs 3, 352, 1880)
Bu_1880e Ma - Burnham, S.W. 1880Obs.....3..408B
Bu_1880e Obs 3, 408, 1880
Bu_1880f Ma - Burnham, S.W. 1880MNRAS..40..497B
Bu_1880f MNRAS 40, 497, 1880
Bu_1880g Ma - Burnham, S.W. 1880MNRAS..41...33B
Bu_1880g MNRAS 41, 33, 1880
Bu_1881 Ma j Burnham, S.W. 1881Obs.....4...19G
Bu_1881 cited by Gledhill (Obs 4, 19, 1881)
Bu_1882a Ma - Burnham, S.W. (BU 776 - 863) 1882PWasO...1...91B
Bu_1882a Pub. Washburn Obs. 1, 91, 1882
Bu_1882b Ma - Burnham, S.W. 1882PWasO...1..113B
Bu_1882b Pub. Washburn Obs. 1, 113, 1882
Bu_1883 Ma j Burnham, S.W. (BU 864 - 1025) 1883MmRAS..47..167B
Bu_1883 MemRAS 47, 167, 1883
Bu_1883b Ma - Burnham, S.W. 1883MNRAS..43..318B
Bu_1883b MNRAS 43, 318, 1883
Bu_1884 Ma j Burnham, S.W. 1884MNRAS..44..365H
Bu_1884 MNRAS 44, 365, 1884
Bu_1884b Ma - Burnham, S.W. 1884AN....110..133B
Bu_1884b AN 110, 133, 1884
Bu_1884C Ma - Burnham, S.W. 1884AReg...22..216S
Bu_1884C cited by Sadler (Astr. Register 22, 216, 1884)
Bu_1887 Ma - Burnham, S.W. (BU 734 - 775) 1887PLicO...1...24B
Bu_1887 Pub. Lick Obs. 1, 24,45, 1887
Bu_1889a Ma - Burnham, S.W. 1889AN....122..159B
Bu_1889a AN 122, 159, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889b Ma - Burnham, S.W. (BU 1026 - 1038) 1889AN....123....1B
Bu_1889b AN 123, 1, 1889 (measures also in Bu_1894a) 1894PLicO...2..185B
Bu_1889c Ma - Burnham, S.W. 1889AN....123...75B
Bu_1889c AN 123, 75, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889d Ma - Burnham, S.W. 1889PASP....1...36B
Bu_1889d PASP 1, 36, 1889 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1889e Ma j Burnham, S.W. 1889AN....121...63B
Bu_1889e AN 121, 63, 1889 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1889f Ma j Bunham, S.W. 1889MNRAS..49..418B
Bu_1889f MNRAS 49, 418, 1889
Bu_1890a Ma - Burnham, S.W. (BU 1093 - 1154) 1889AN....124...49B
Bu_1890a AN 124, 49, 1890 (measures also in Bu_1894c) 1894PLicO...2..197B
Bu_1890b Ma - Burnham, S.W. 1890AN....125...41B
Bu_1890b AN 125, 41, 1890 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1890c Ma - Burnham, S.W. 1890PASP....2..138B
Bu_1890c PASP 2, 138, 1890 (measures also in Bu_1894) 1894PLicO...2....3B
Bu_1891a orb - Burnham, S.W. 1891SidM...10..273B
Bu_1891a Sidereal Messenger 10, 273, 1891
Bu_1891b orb - Burnham, S.W. 1891Obs....14..263B
Bu_1891b Observatory 14, 263, 1891
Bu_1891c Ma j Burnham, S.W. 1891AN....127..289B
Bu_1891c AN 127, 289, 1891
Bu_1892 Ma - Burnham, S.W. (BU 1225 - 1266) 1892AN....130..257B
Bu_1892 AN 130, 257, 1892 (measures also in Bu_1894e) 1894PLicO...2..221B
Bu_1892b Ma - Burnham, S.W. 1892AN....130...77B
Bu_1892b AN 130, 77, 1892
Bu_1893a Ma - Burnham, S.W. 1893AN....131..329B
Bu_1893a AN 131, 329, 1893 (most measures also in Bu_1894) 1894PLicO...2.....B
Bu_1893b orb - Burnham, S.W. 1893MNRAS..53..478B
Bu_1893b MNRAS 53, 478, 1893
Bu_1893c orb - Burnham, S.W. 1893MNRAS..54..119B
Bu_1893c MNRAS 54, 119, 1893
Bu_1893d orb - Burnham, S.W. 1893AstAp..12..494B
Bu_1893d AstAp 12, 494, 1893
Bu_1893e orb - Burnham, S.W. 1893AstAp..12..585B
Bu_1893e AstAp 12, 585, 1893
Bu_1893f Ma - Burnham, S.W. (BU 1267 - 1274) 1893MNRAS..53..273B
Bu_1893f MNRAS 53, 273, 1893 (most measures also in Bu_1893a) 1893AN....131..329B
Bu_1893g orb - Burnham, S.W. 1893MNRAS..53..482B
Bu_1893g MNRAS 53, 482, 1893
Bu_1894 Ma j Burnham, S.W. 1894PLicO...2....3B
Bu_1894 Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) 1893AN....131..329B
Bu_1894a Ma j Burnham, S.W. (BU 1026 - 1038) 1894PLicO...2..185B
Bu_1894a Pub. Lick Obs. 2, 185, 1894
Bu_1894b Ma j Burnham, S.W. (BU 1039 - 1092) 1894PLicO...2..188B
Bu_1894b Pub. Lick Obs. 2, 188, 1894
Bu_1894c Ma - Burnham, S.W. (BU 1093 - 1154) 1894PLicO...2..197B
Bu_1894c Pub. Lick Obs. 2, 197, 1894
Bu_1894d Ma - Burnham, S.W. (BU 1155 - 1224) 1894PLicO...2..206B
Bu_1894d Pub. Lick Obs. 2, 206, 1894
Bu_1894e Ma - Burnham, S.W. (BU 1225 - 1266) 1894PLicO...2..221B
Bu_1894e Pub. Lick Obs. 2, 221, 1894
Bu_1894f Ma - Burnham, S.W. (BU 1267 - 1274) 1894PLicO...2..229B
Bu_1894f Pub. Lick Obs. 2, 229, 1894 (all measures also in Bu_1893f) 1893MNRAS..53..273B
Bu_1894g Ma - Burnham, S.W. 1894PLicO...2..159B
Bu_1894g Pub. Lick Obs. 2, 159, 1894
Bu_1898 orb - Burnham, S.W. 1898MNRAS..59...59B
Bu_1898 MNRAS 58, 59, 1898
Bu_1900 Ma - Burnham, S.W. 1900PYerO...1....1B
Bu_1900 Pub. Yerkes Obs. 1, 1, 1900
Bu_1902A Ma j Burnham, S.W. 1902AN....158..241E
Bu_1902A cited by Espin (AN 158, 241, 1902)
Bu_1903 Ma - Burnham, S.W. 1903PYerO...2....1B
Bu_1903 Pub. Yerkes Obs. 2, 1, 1903
Bu_1906 Ma j Burnham, S.W. 1906QB821.B972.....
Bu_1906 +M Burnham Double Star Cat., 1906
Bu_1906B Ma - Burnham, S.W. 1906MmRAS..56....1L
Bu_1906B +orb cited by Lewis (MemRAS 56, 1, 1906)
Bu_1907 Ma - Burnham, S.W. 1907AN....176..129B
Bu_1907 AN 176, 129, 1907 (most data in Bu_1913) 1913QB811.B8.......
Bu_1908 Ma - Burnham, S.W. 1908MNRAS..68..517B
Bu_1908 MNRAS 68, 517, 1908
Bu_1908A Ma - Burnham, S.W. 1908MNRAS..68..465B
Bu_1908A cited by Barnard (MNRAS 68, 465, 1908)
Bu_1909 Ma - Burnham, S.W. 1909AN....180...65B
Bu_1909 AN 180, 65, 1909 (most data in Bu_1913) 1913QB811.B8.......
Bu_1909b Ma j Burnham, S.W. 1909AN....182..133B
Bu_1909b AN 182, 133, 1909
Bu_1910 Ma - Burnham, S.W. ...................
Bu_1910 Journal Astronomique 1, no. 11, 81, 1910
Bu_1910b Ma - Burnham, S.W. 1910AN....185..145B
Bu_1910b AN 185, 145, 1910 (most data in Bu_1913) 1913QB811.B8.......
Bu_1911 - Burnham, S.W. 1911MNRAS..72..156J
Bu_1911 MNRAS 72, 156, 1911
Bu_1911b Ma j Burnham, S.W. 1911AN....189..385B
Bu_1911b AN 189, 385, 1911
Bu_1913 Ma j Burnham, S.W. 1913QB811.B8.......
Bu_1913 +Pa Carnegie Inst. Wash. #168, 1913
Bu_1913 +T
Bu_1918 Ma j Burnham, S.W. 1918AJ.....31..141B
Bu_1918 AJ 31, 141, 1918
Bu_1923A Ma - Burnham, S.W. 1923MNRAS..83..154E
Bu_1923A cited by Espin (MNRAS 83, 154, 1923)
Bu_1927A Ma - Burnham, S.W. 1927sdsc.book......
Bu_1927A cited in SDS (Southern Double Star Cat.), 1927
Bu_1932A Ma - Burnham, S.W. 1932QB821.A43......
Bu_1932A cited in ADS (Aitken Double Star Cat.), 1932
Bu_1963A Ma - Burnham, S.W. 1963icvd.book.....J
Bu_1963A cited in IDS (Lick Index Cat.), 1963
Bu_2002A Ma - Burnham, S.W. 2002yCat.1275....0D
Bu_2002A cited in CCDM
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
01226+1245 BU 1360 AB 2018 23 24 5.7 9.62 11.76 K5 VW 012236.60+124503.4

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

 
 
WDS 01226+1245 BU 1360 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 01226+1245 BU 1360 AB : MEASURES
 
 
No records found.

 
 
WDS 01226+1245 : VIRTUAL EYEPIECE
 
 

01226+1245 BU 1360A mag 9.62 Sp K5 01226+1245 BU 1360B sep 5.6 P.A. 23.20 mag 11.76 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 01226+1245 : ALADIN DSS IMAGE @ 01h 22m 36.60s +12° 45' 03.4"
 
 
 
 
WDS 01226+1245 BU 1360 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

01226+1245 BU 1360AB distance=0' 01242+1254 HJ 13AB distance=26' 01242+1254 HJ 13AC distance=26' 01239+1223 KPP3140AB distance=29' 01226+1200 GWP 178 distance=45' 01197+1209 CHR 196 distance=56' 01260+1315 HEI 305Aa,Ab distance=58' 01260+1315 TOK 226AB distance=58' 01260+1315 TOK 226AC distance=58' 01270+1239 GRV 87 distance=65' 01194+1158 BPM 28 distance=66' 01186+1316 J 2715 distance=67' 01181+1234 CVR1069 distance=67' 01203+1346 AG 16 distance=70' 01243+1354 OCC 307 distance=74' 01213+1132 BU 4AB distance=76' 01213+1132 BU 4AC distance=76' 01270+1200 LDS3282 distance=78' 01282+1244 GWP 193 distance=82' 01208+1127 AG 17 distance=82' 01262+1349 TOK 871 distance=83' 01227+1410 GWP 179 distance=85' 01163+1243 BPM 25 distance=93' 01219+1422 STF 116 distance=96' 01267+1123 HDS 188 distance=102' 01155+1248 ITF 127 distance=105' 01250+1424 GWP 185 distance=105' 01233+1100 PLQ 14 distance=106' 01182+1409 BPM 27 distance=106' 01177+1124 CVR 377 distance=109' 01162+1344 HJ 1076AB distance=111' 01162+1344 HJ 1076AC distance=111' 01162+1344 ABH 7AD distance=111' 01190+1424 CVR1072 distance=113' 01303+1239 STF 129 distance=113' 01267+1420 GRV1168 distance=113' 01302+1203 BRT1168 distance=119' 01148+1326 ITF 115 distance=122' 01213+1045 KPP2458 distance=122' 01143+1301 HJ 12 distance=123' 01147+1327 ITF 114 distance=124' 01226+1449 MRL 1 distance=125' 01298+1128 KPP 72 distance=131' 01283+1429 AG 18 distance=133' 01208+1035 PLQ 13 distance=134' 01260+1450 BPM 30 distance=135' 01228+1500 GRV1166 distance=136' 01264+1451 HEI 205 distance=138' 01299+1413 AG 19 distance=138' 01321+1218 AG 20 distance=142' 01297+1423 HEI 206 distance=144' 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 01226+1245 BU 1360 AB 24 5.7
Show 01242+1254 HJ 13 AB 216 28.7 26
Show 01242+1254 HJ 13 AC 272 126.7 26
Show 01239+1223 KPP3140 AB 181 1.4 29
Show 01226+1200 GWP 178 246 53.1 45
Show 01197+1209 CHR 196 270 0.0 56
Show 01260+1315 HEI 305 Aa,Ab 337 0.5 58
Show 01260+1315 TOK 226 AB 162 139.5 58
Show 01260+1315 TOK 226 AC 247 302.4 58
Show 01270+1239 GRV 87 266 20.2 65
Show 01194+1158 BPM 28 279 75.1 66
Show 01186+1316 J 2715 75 5.5 67
Show 01181+1234 CVR1069 141 3.0 67
Show 01203+1346 AG 16 185 29.7 70
Show 01243+1354 OCC 307 -1 0.0 74
Show 01213+1132 BU 4 AB 114 0.6 76
Show 01213+1132 BU 4 AC 250 29.3 76
Show 01270+1200 LDS3282 219 24.5 78
Show 01282+1244 GWP 193 261 17.2 82
Show 01208+1127 AG 17 99 54.7 82
Show 01262+1349 TOK 871 22 0.8 83
Show 01227+1410 GWP 179 260 32.0 85
Show 01163+1243 BPM 25 242 115.2 93
Show 01219+1422 STF 116 110 20.2 96
Show 01267+1123 HDS 188 164 0.7 102
Show 01155+1248 ITF 127 155 5.0 105
Show 01250+1424 GWP 185 216 116.1 105
Show 01233+1100 PLQ 14 297 49.7 106
Show 01182+1409 BPM 27 58 36.0 106
Show 01177+1124 CVR 377 308 14.4 109
Show 01162+1344 HJ 1076 AB 154 12.7 111
Show 01162+1344 HJ 1076 AC 262 39.6 111
Show 01162+1344 ABH 7 AD 352 30.4 111
Show 01190+1424 CVR1072 15 4.2 113
Show 01303+1239 STF 129 282 8.9 113
Show 01267+1420 GRV1168 218 18.1 113
Show 01302+1203 BRT1168 37 4.4 119
Show 01148+1326 ITF 115 130 21.0 122
Show 01213+1045 KPP2458 259 21.8 122
Show 01143+1301 HJ 12 222 15.6 123
Show 01147+1327 ITF 114 266 25.5 124
Show 01226+1449 MRL 1 291 0.2 125
Show 01298+1128 KPP 72 327 5.0 131
Show 01283+1429 AG 18 41 73.0 133
Show 01208+1035 PLQ 13 105 49.1 134
Show 01260+1450 BPM 30 336 118.4 135
Show 01228+1500 GRV1166 332 16.3 136
Show 01264+1451 HEI 205 66 0.8 138
Show 01299+1413 AG 19 322 100.3 138
Show 01321+1218 AG 20 249 2.7 142
Show 01297+1423 HEI 206 57 2.4 144

 
 
WDS 01226+1245 : COMPONENTS
 
 
  A
B pa=23.2°
sep=5.63"
 
 
01226+1245 A
 
 
Coord arcsec 2000 012236.60+124503.4 Mag 9.62 Spectral class K5 (yellow-orange) PmRA 402.00
PmDE 11.0 HIP 6431 Tycho2 0620-00901-1 ADS 1104
BD BD+12 168
Tycho2
Tycho2 0620-00901-1 Pflag RAmdeg 20.65250412 DEmdeg 12.75094300
PmRA 400.1 PmDE 8.4 E RAmdeg 20 E DEmdeg 23
E pmRA 1.5 E pmDE 1.4 EpRAm 1988.48 EpDEm 1986.96
Num 6 Q RAmdeg 1.5 Q DEmdeg 1.3 Q pmRA 1.4
Q pmDE 1.4 BTmag 10.919 E BTmag 0.056 VTmag 9.623
E VTmag 0.027 Prox 57 TYC T HIP 6431
CCDM A RAdeg 20.65154306 DEdeg 12.75092194 EpRA 1990 1.57
EpDE 1990 1.49 E RAdeg 20.7 E DEdeg 23.5 Posflg
Corr -0.2
Hipparcos
Catalog H HIP 6431 Proxy H RAhms 01 22 36.36
DEdms +12 45 03.3 Vmag 9.5 VarFlag R Vmag G
RAdeg 20.6515 DEdeg 12.7509 AstroRef A Plx 23.84
CCDM 01226+1245 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 25 Rho 5.668 HD BD BD+12 168
CD CP Dm number +12 168 VIred 1.07
SpType K5... R SpType Coord arcsec 2000 012236.36+124503.3
Hipparcos 2
HIP 6431 Sn 15 So 3 Nc 2
RArad 0.3604367369 DErad 0.2225456532 Plx 21.54 PmRA 402.14
PmDE 7.82 E RArad 1.42 E DErad 1.06 E Plx 1.67
E pmRA 1.59 E pmDE 1.1 Hpmag 9.6073 E Hpmag 0.0026
SHp 0.018 VA 0 BV 1.024 E BV 0.005
VI 1.07
CCDM
Ccdm 01226+1245 RComp Comp A Note1
Note2 Discov num DRAs 0.61 DDEs 3.2
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.9 Sp K5 PmNote *
PmRA 402 PmDE 7 Dm number +12 168 Cat1 BD
Name2 +12 141 Cat2 AGK2/3 HD M HD
ADS BDS A 1104 M ADS BDS N IDS IDS 01174N1214A
HIC 6431
 
 
01226+1245 B
 
 
Coord arcsec 2000 012236.75+124508.6 Mag 11.76 PmRA 396.00 PmDE 16.0
Calc delta mag 2.14 Calc coord yes
CCDM
Ccdm 01226+1245 RComp Comp B Note1
Note2 Discov num BU DRAs 0.79 DDEs 8.7
R dRAs 90 Year 1903 Theta 031 Rho 5.3
Obs 8 Vmag 12.0 Sp PmNote *
PmRA 399 PmDE 20 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 1104 M ADS BDS N IDS IDS 01174N1214B
HIC 6431