1900:
37:
625:
diameter of 50 AU. The cocoon has a hole in it through which light shines that covers an angle of 5 to 10 degrees of its circumference. Both stars are surrounded by a large envelope of in-falling material that left over from the original cloud that formed the system. Both stars are emitting jets of material, that of the Herbig Ae/Be star being much larger - up to 11.7 light-years (3.6 parsecs) long.
624:
times its diameter and a blackbody temperature of 980 K, the star shines with a luminosity 2,400 times greater than that of the sun, though there is some uncertainty about its properties. It is enveloped in an irregular roughly spherical cocoon of dust that has an inner diameter of 20 and outer
611:
in a phase of very high mass accretion resulting in an accretion disk which dominates the optical spectrum) that is 1300 times as luminous as the Sun, has 3 times its mass and 13 times its diameter and a surface temperature of 10,000 K. The northwest component is a
603:
The star is a complex binary system only 300,000 years old with two main components separated by an estimated 100 astronomical units (AU) or 0.1" as seen from Earth. The southeast component is an
992:
Szeifert, T.; Hubrig, S.; Schöller, M.; Schütz, O.; et al. (2010). "The Nature of the Recent
Extreme Outburst of the Herbig Be/FU Orionis Binary Z Canis Majoris".
628:
It is unclear whether the most recent (and brightest) brightening in 2008 was due to the Herbig Ae/Be star increasing in luminosity or a hole appearing in the cocoon.
1045:
Whelan, E.T.; Dougados, C.; Perrin, M. D.; Bonnefoy, M.; et al. (2010). "The 2008 Outburst in the Young
Stellar System Z CMa: The First Detection of Twin Jets".
1140:
Canovas, H.; Min, M.; Jeffers, S.V.; Rodenhuis, M.; et al. (2012). "Constraining the
Circumbinary envelope of Z Canis Majoris via Imaging Polarimetry".
545:
914:
Guzmán-Díaz, J.; Mendigutía, I.; Montesinos, B.; Oudmaijer, R. D.; Vioque, M.; Rodrigo, C.; Solano, E.; Meeus, G.; Marcos-Arenal, P. (25 June 2021).
1952:
823:
771:
Covino, E.; Terranegra, L.; Vittone, A. A.; Russo, G. (1984). "Spectroscopic and photometric observations of the Herbig be star Z Canis
Majoris".
754:
846:"Estimating Distances from Parallaxes. V. Geometric and Photogeometric Distances to 1.47 Billion Stars in Gaia Early Data Release 3"
74:
1942:
1211:
1231:
600:
of approximately 10, though has brightened by 1-2 magnitudes in irregular outbursts in 1987, 2000, 2004 and 2008.
1957:
915:
752:
The combined table of GCVS Vols I-III and NL 67-78 with improved coordinates, General
Catalogue of Variable Stars
67:
731:
1870:
1236:
42:
1927:
1220:
1947:
1922:
1431:
1204:
597:
27:
49:
1847:
1099:
1557:
1353:
1348:
813:
608:
533:
136:
1937:
1697:
1504:
1383:
1283:
751:
477:
357:
1163:
1115:
1015:
941:
707:
616:
that has been calculated to be 12 times as massive as the Sun with a dust shell photosphere
1932:
1903:
1852:
1811:
1537:
1313:
1197:
1159:
1111:
1064:
1011:
937:
867:
780:
703:
258:
1098:
Thiébaut, E.; Bouvier, J.; Blazit, A.; Bonneau, D.; Foy, F. -C.; Foy, R. (18 April 1995).
916:"Homogeneous study of Herbig Ae/Be stars from spectral energy distributions and Gaia EDR3"
566:
8:
1637:
1596:
1373:
1363:
1308:
1298:
1278:
1273:
537:
1068:
871:
784:
1606:
1303:
1288:
1268:
1175:
1149:
1080:
1076:
1054:
1027:
1001:
961:
927:
885:
857:
844:
Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M.; Demleitner, M.; Andrae, R. (2021).
761:, Sternberg Astronomical Institute, Moscow, Russia. Accessed on line November 9, 2009.
721:
693:
541:
119:
20:
1368:
1343:
1338:
1333:
1328:
1323:
1293:
1255:
1119:
1084:
965:
953:
889:
725:
613:
372:
60:
1179:
1031:
1494:
1489:
1484:
1479:
1474:
1469:
1464:
1459:
1454:
1421:
1416:
1411:
1406:
1401:
1396:
1391:
1358:
1318:
1167:
1072:
1019:
945:
875:
788:
711:
464:
344:
242:
1171:
1023:
949:
716:
677:
1444:
1439:
1044:
758:
604:
499:
183:
95:
1189:
880:
845:
529:
520:
250:
230:
218:
164:
1916:
1123:
957:
589:
207:
159:
82:
1139:
991:
645:
1686:
436:
392:
324:
297:
593:
582:
149:
108:
87:
45:
913:
1746:
1672:
1667:
1662:
1657:
1652:
1647:
1642:
409:
337:
304:
171:
843:
1878:
1629:
1883:
1831:
1826:
1821:
1816:
1777:
1772:
1725:
1720:
1715:
1710:
1705:
1580:
1575:
1570:
1565:
1547:
1542:
1532:
1527:
1522:
1517:
1512:
932:
862:
792:
698:
513:
379:
1154:
1059:
1006:
1782:
1601:
70:
63:
36:
1796:
1764:
1741:
1263:
818:
735:
560:
491:
422:
364:
317:
275:
675:
682:
Data
Release 3. Summary of the content and survey properties"
1097:
770:
1611:
1246:
585:
234:
222:
1100:"The companion of Z Canis Majoris detected in the visible"
676:
Vallenari, A.; et al. (Gaia collaboration) (2023).
1869:
909:
907:
905:
903:
901:
899:
1914:
1219:
1135:
1133:
896:
1205:
824:Centre de données astronomiques de Strasbourg
113:−11° 33′ 06.2091″
1130:
1091:
1212:
1198:
1038:
987:
985:
983:
981:
979:
977:
975:
1628:
1153:
1058:
1005:
931:
879:
861:
715:
697:
638:
837:
1953:Objects with variable star designations
972:
746:
744:
214:
1915:
1763:
1193:
808:
806:
804:
802:
671:
669:
667:
665:
663:
16:Star in the constellation Canis Major
741:
66:
226:
13:
799:
660:
48:for Z Canis Majoris, plotted from
14:
1969:
1047:The Astrophysical Journal Letters
1899:
1898:
1232:Canis Major in Chinese astronomy
35:
732:Gaia DR3 record for this source
249:2.0354 ± 0.6322
1943:Henry Draper Catalogue objects
764:
648:. The All Sky Automated Survey
1:
631:
1237:List of stars in Canis Major
1221:Constellation of Canis Major
1142:Astronomy & Astrophysics
1104:Astronomy & Astrophysics
1077:10.1088/2041-8205/720/1/L119
920:Astronomy & Astrophysics
7:
1172:10.1051/0004-6361/201117762
1024:10.1051/0004-6361/200913704
950:10.1051/0004-6361/202039519
717:10.1051/0004-6361/202243940
10:
1974:
994:Astronomy and Astrophysics
686:Astronomy and Astrophysics
18:
1896:
1865:
1840:
1804:
1795:
1759:
1734:
1696:
1685:
1624:
1589:
1556:
1503:
1430:
1382:
1254:
1245:
1227:
646:"ASAS All Star Catalogue"
598:apparent visual magnitude
575:Z Canis Majoris
553:
526:
519:
385:
290:
285:
281:
177:
170:
130:
57:
33:
28:Z Canis Majoris
881:10.3847/1538-3881/abd806
850:The Astronomical Journal
773:The Astronomical Journal
50:All Sky Automated Survey
19:Not to be confused with
1848:Canis Major Overdensity
1164:2012A&A...543A..70C
1116:1995A&A...303..795T
1016:2010A&A...509L...7S
942:2021A&A...650A.182G
750:Z CMa, database entry,
708:2023A&A...674A...1G
120:Apparent magnitude
1958:Durchmusterung objects
609:pre-main-sequence star
596:. It has an average
1871:Astronomical events
1602:WASP-64 (Atakoraka)
1069:2010ApJ...720L.119W
872:2021AJ....161..147B
785:1984AJ.....89.1868C
554:Database references
30:
1928:Herbig Ae/Be stars
757:2017-06-20 at the
521:Other designations
229: +3.831
217: −4.839
160:Variable type
137:Spectral type
26:
21:Zeta Canis Majoris
1948:Hipparcos objects
1910:
1909:
1892:
1891:
1861:
1860:
1791:
1790:
1755:
1754:
1681:
1680:
1638:ν Canis Majoris b
1620:
1619:
614:Herbig Ae/Be star
572:
571:
386:NW (Herbig Ae/Be)
1965:
1923:FU Orionis stars
1902:
1901:
1867:
1866:
1802:
1801:
1761:
1760:
1694:
1693:
1626:
1625:
1566:43197 (Amadioha)
1252:
1251:
1214:
1207:
1200:
1191:
1190:
1184:
1183:
1157:
1137:
1128:
1127:
1095:
1089:
1088:
1062:
1042:
1036:
1035:
1009:
989:
970:
969:
935:
911:
894:
893:
883:
865:
841:
835:
834:
832:
830:
810:
797:
796:
768:
762:
748:
739:
729:
719:
701:
673:
658:
657:
655:
653:
642:
623:
621:
511:
509:
489:
487:
462:
461:
460:
434:
432:
407:
406:
405:
273:
272:
271:
228:
216:
200:
198:
143:
131:Characteristics
123:
103:
98:
58:Observation data
39:
31:
25:
1973:
1972:
1968:
1967:
1966:
1964:
1963:
1962:
1913:
1912:
1911:
1906:
1888:
1857:
1836:
1787:
1751:
1730:
1688:
1677:
1616:
1597:RX J0720.4−3125
1585:
1552:
1499:
1426:
1378:
1241:
1223:
1218:
1188:
1187:
1138:
1131:
1096:
1092:
1043:
1039:
990:
973:
912:
897:
842:
838:
828:
826:
812:
811:
800:
769:
765:
759:Wayback Machine
749:
742:
674:
661:
651:
649:
644:
643:
639:
634:
619:
617:
605:FU Orionis star
549:
532:−11 1760,
507:
505:
485:
483:
470:
467:
458:
456:
455:
453:
442:
439:
430:
428:
415:
412:
403:
401:
400:
398:
350:
347:
330:
327:
310:
307:
269:
267:
266:
264:
225:
196:
194:
189:
184:Radial velocity
141:
118:
101:
96:Right ascension
94:
59:
53:
40:
24:
17:
12:
11:
5:
1971:
1961:
1960:
1955:
1950:
1945:
1940:
1935:
1930:
1925:
1908:
1907:
1897:
1894:
1893:
1890:
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1886:
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1873:
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1859:
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1808:
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1769:
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1732:
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1708:
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1678:
1676:
1675:
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1665:
1660:
1655:
1650:
1645:
1640:
1634:
1632:
1622:
1621:
1618:
1617:
1615:
1614:
1609:
1607:WISE 0713−2917
1604:
1599:
1593:
1591:
1587:
1586:
1584:
1583:
1578:
1573:
1568:
1562:
1560:
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1520:
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1507:
1501:
1500:
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1497:
1492:
1487:
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1477:
1472:
1467:
1462:
1457:
1452:
1447:
1442:
1436:
1434:
1428:
1427:
1425:
1424:
1419:
1414:
1409:
1404:
1399:
1394:
1388:
1386:
1380:
1379:
1377:
1376:
1371:
1366:
1364:σ (Unurgunite)
1361:
1356:
1351:
1346:
1341:
1336:
1331:
1326:
1321:
1316:
1311:
1306:
1301:
1296:
1291:
1286:
1281:
1276:
1271:
1266:
1260:
1258:
1249:
1243:
1242:
1240:
1239:
1234:
1228:
1225:
1224:
1217:
1216:
1209:
1202:
1194:
1186:
1185:
1129:
1090:
1053:(1): L119-24.
1037:
971:
895:
836:
798:
793:10.1086/113697
763:
740:
659:
636:
635:
633:
630:
570:
569:
564:
556:
555:
551:
550:
544: 218073,
527:
524:
523:
517:
516:
503:
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494:
481:
473:
472:
468:
465:
451:
445:
444:
440:
437:
426:
418:
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413:
410:
396:
388:
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383:
382:
376:
368:
367:
361:
353:
352:
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345:
341:
333:
332:
328:
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321:
313:
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308:
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301:
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288:
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187:
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168:
167:
162:
156:
155:
152:
145:
144:
139:
133:
132:
128:
127:
124:
115:
114:
111:
105:
104:
102:07 03 43.15994
99:
91:
90:
85:
79:
78:
55:
54:
34:
15:
9:
6:
4:
3:
2:
1970:
1959:
1956:
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1951:
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1946:
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1506:
1502:
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1370:
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1340:
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1332:
1330:
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1322:
1320:
1317:
1315:
1312:
1310:
1307:
1305:
1302:
1300:
1297:
1295:
1292:
1290:
1287:
1285:
1282:
1280:
1277:
1275:
1274:γ (Muliphein)
1272:
1270:
1267:
1265:
1262:
1261:
1259:
1257:
1253:
1250:
1248:
1244:
1238:
1235:
1233:
1230:
1229:
1226:
1222:
1215:
1210:
1208:
1203:
1201:
1196:
1195:
1192:
1181:
1177:
1173:
1169:
1165:
1161:
1156:
1151:
1148:(A70): 8 pp.
1147:
1143:
1136:
1134:
1125:
1121:
1117:
1113:
1109:
1105:
1101:
1094:
1086:
1082:
1078:
1074:
1070:
1066:
1061:
1056:
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1048:
1041:
1033:
1029:
1025:
1021:
1017:
1013:
1008:
1003:
999:
995:
988:
986:
984:
982:
980:
978:
976:
967:
963:
959:
955:
951:
947:
943:
939:
934:
929:
925:
921:
917:
910:
908:
906:
904:
902:
900:
891:
887:
882:
877:
873:
869:
864:
859:
855:
851:
847:
840:
825:
821:
820:
815:
809:
807:
805:
803:
794:
790:
786:
782:
778:
774:
767:
760:
756:
753:
747:
745:
737:
733:
727:
723:
718:
713:
709:
705:
700:
695:
691:
687:
683:
681:
672:
670:
668:
666:
664:
647:
641:
637:
629:
626:
615:
610:
606:
601:
599:
595:
591:
590:constellation
587:
584:
580:
576:
568:
565:
563:
562:
558:
557:
552:
548: 152302
547:
543:
540: 34042,
539:
536: 53179,
535:
531:
525:
522:
518:
515:
504:
502:
501:
497:
496:
493:
482:
480:
479:
475:
474:
471:
452:
450:
447:
446:
443:
427:
425:
424:
420:
419:
416:
397:
395:
394:
390:
389:
384:
381:
377:
375:
374:
370:
369:
366:
362:
360:
359:
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342:
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339:
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334:
331:
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319:
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314:
311:
302:
300:
299:
295:
294:
289:
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38:
32:
29:
22:
1938:B-type stars
1449:
1145:
1141:
1107:
1103:
1093:
1050:
1046:
1040:
1000:(L7): 5 pp.
997:
993:
923:
919:
853:
849:
839:
827:. Retrieved
817:
776:
772:
766:
689:
685:
679:
650:. Retrieved
640:
627:
602:
578:
574:
573:
559:
528:Z CMa,
498:
476:
448:
421:
391:
371:
363:10,000
356:
336:
316:
296:
257:
241:
206:
182:
1933:Canis Major
829:November 9,
607:(a type of
594:Canis Major
478:Temperature
358:Temperature
343:1,300
291:SE (FU Ori)
150:color index
142:B5/8eq+F5/7
126:7.8 - 11.2
109:Declination
88:Canis Major
46:light curve
43:visual band
1917:Categories
1747:Messier 41
1673:HD 43197 b
1663:HD 45364 b
1653:HD 47186 b
1643:HD 47536 b
1630:Exoplanets
1294:η (Aludra)
1284:ε (Adhara)
1269:β (Mirzam)
1264:α (Sirius)
933:2104.11759
863:2012.05220
856:(3): 147.
814:"V* Z CMa"
699:2208.00211
652:8 December
632:References
579:Z CMa
449:Luminosity
338:Luminosity
201: km/s
172:Astrometry
1879:SN 1999ec
1384:Flamsteed
1289:ζ (Furud)
1279:δ (Wezen)
1155:1205.3784
1124:0004-6361
1085:119237775
1060:1008.0111
1007:0912.3889
966:233393918
958:0004-6361
890:228063812
726:244398875
378:0.3
122: (V)
1904:Category
1884:SN 2003H
1797:Galaxies
1778:NGC 2361
1773:NGC 2359
1726:NGC 2374
1721:NGC 2362
1716:NGC 2360
1711:NGC 2354
1706:NGC 2204
1689:clusters
1432:Variable
1180:53690653
1032:14928968
779:: 1868.
755:Archived
469:☉
441:☉
414:☉
349:☉
329:☉
323:13
309:☉
259:Distance
243:Parallax
1853:IC 2163
1783:Sh2-297
1765:Nebulae
1455:UW (29)
1160:Bibcode
1112:Bibcode
1110:: 795.
1065:Bibcode
1012:Bibcode
938:Bibcode
868:Bibcode
781:Bibcode
704:Bibcode
588:in the
581:) is a
303:3
286:Details
71:J2000.0
68:Equinox
64:J2000.0
1742:Gaia 1
1178:
1122:
1083:
1030:
964:
956:
926:: 43.
888:
819:SIMBAD
736:VizieR
724:
692:: A1.
583:B-type
561:SIMBAD
512:
490:
463:
459:−1,660
457:+1,700
435:
423:Radius
408:
318:Radius
274:
1841:Other
1735:Other
1590:Other
1581:47186
1576:45364
1571:45184
1256:Bayer
1247:Stars
1176:S2CID
1150:arXiv
1081:S2CID
1055:arXiv
1028:S2CID
1002:arXiv
962:S2CID
928:arXiv
886:S2CID
858:arXiv
730:
722:S2CID
694:arXiv
618:1,690
484:8,250
454:2,190
429:22.88
404:−3.62
402:+1.66
227:Dec.:
154:1.19
61:Epoch
1832:2283
1827:2280
1822:2227
1817:2217
1812:2207
1687:Star
1612:WR 7
1548:2812
1543:2766
1538:2764
1533:2758
1528:2450
1523:2447
1518:2437
1513:2318
1120:ISSN
954:ISSN
831:2009
680:Gaia
654:2021
586:star
567:data
510:0.03
506:0.06
433:8.76
399:9.43
393:Mass
298:Mass
270:−154
268:+291
148:B−V
75:ICRS
52:data
1805:NGC
1698:NGC
1168:doi
1146:543
1108:303
1073:doi
1051:720
1020:doi
998:509
946:doi
924:650
876:doi
854:161
789:doi
734:at
712:doi
690:674
592:of
546:SAO
542:PPM
538:HIP
514:Myr
500:Age
488:183
380:Myr
373:Age
265:640
251:mas
245:(π)
231:mas
219:mas
215:RA:
210:(μ)
195:−27
165:INA
1919::
1558:HD
1505:HR
1495:NR
1490:LS
1485:FY
1480:FS
1475:FN
1470:EZ
1465:CX
1460:VY
1422:27
1417:26
1412:17
1407:15
1402:12
1397:11
1392:10
1174:.
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1132:^
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801:^
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777:89
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720:.
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702:.
688:.
684:.
662:^
622:30
534:HD
530:BD
276:pc
235:yr
223:yr
199:10
186:(R
77:)
41:A
1668:c
1658:c
1648:c
1450:Z
1445:W
1440:R
1374:ω
1369:τ
1359:π
1354:ο
1349:ο
1344:ξ
1339:ξ
1334:ν
1329:ν
1324:ν
1319:μ
1314:λ
1309:κ
1304:ι
1299:θ
1213:e
1206:t
1199:v
1182:.
1170::
1162::
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878::
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791::
783::
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728:.
714::
706::
696::
678:"
656:.
620:±
577:(
508:±
492:K
486:±
466:L
438:R
431:±
411:M
365:K
346:L
326:R
306:M
233:/
221:/
197:±
190:)
188:v
73:(
23:.
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