22:
59:
1405:
1425:
1339:
1415:
49:
Though the exact causes of this nebular structure are not known, it is often thought to imply the presence of a binary central star with a period of a few days to a few years. As one of the two stars expelled its outer layers, the other disrupted the outflow of material to form the bipolar shape.
1020:
López, J.A; Vazquez, R.; Rodriguez, L.F. (10 December 1995). "The discovery of a bipolar, rotating, episodic jet (BRET) in the planetary nebula KjPn 8".
872:
1081:
1366:
1229:
1165:
971:
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907:
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788:
756:
724:
668:
612:
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357:
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236:
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1372:
1360:
120:
888:
825:
705:
649:
562:
NewsCenter - Hubble Finds
Searchlight Beams and Multiple Arcs around a Dying Star (01/16/1996) - Introduction
463:
NewsCenter - Astro-Entomology? Ant-like Space
Structure Previews Death of Our Sun (02/01/2001) - Introduction
306:
217:
1355:
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1219:
1214:
1209:
1173:
1151:
1074:
869:
62:
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561:
462:
394:
293:
21:
126:
114:
996:
813:
382:
1285:
889:
NewsCenter - Hubble
Catches Scattered Light from the Boomerang Nebula (09/13/2005) - Release Images
450:
395:
NewsCenter - The "Rotten Egg" Nebula: A Planetary Nebula in the Making (10/19/1999) - Introduction
1418:
1268:
1247:
693:
65:, otherwise known as the Twin Jet Nebula or the Wings of a Butterfly Nebula, is a bipolar nebula.
706:
NewsCenter - Hubble Finds an
Hourglass Nebula around a Dying Star (01/16/1996) - Release Images
520:
1242:
1141:
1124:
1054:
637:
506:
70:
37:
is a type of nebula characterized by two lobes either side of a central star. About 10-20% of
26:
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519:
Tafoya, D.; Loinard, L.; Vlemmings, W.H.T.; Marti-Vidal, I.; Pech, G. (22 July 2013).
58:
1444:
1389:
149:
1204:
1188:
1129:
650:
NewsCenter - Dying Star
Sculpts Rungs of Gas and Dust (05/11/2004) - Release Images
826:
NewsCenter - Symbiotic Star Blows
Bubbles into Space (08/24/1999) - Release Images
540:
1008:
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409:. Antwrp.gsfc.nasa.gov (1 November 1999). Retrieved on 26 November 2010.
1090:
1009:
APOD: 28 October 2001 – NGC 2346: A Butterfly-Shaped
Planetary Nebula
999:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
879:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
816:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
696:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
640:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
509:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
453:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
385:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
296:. Daviddarling.info (1 February 2007). Retrieved on 26 November 2010.
1033:
218:
NewsCenter - Doomed Star Eta
Carinae (06/10/1996) - Release Images
57:
976:
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912:
891:. HubbleSite (13 September 2005). Retrieved on 26 November 2010.
849:
793:
761:
729:
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617:
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273:
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194:
The
Macquarie/AAO/Strasbourg Hα Planetary Nebula Catalogue: MASH
96:
83:
1063:
16:
Type of nebula that has two lobes extending from a central star
708:. HubbleSite (16 January 1996). Retrieved on 26 November 2010.
564:. HubbleSite (16 January 1996). Retrieved on 26 November 2010.
465:. HubbleSite (1 February 2001). Retrieved on 26 November 2010.
397:. HubbleSite (19 October 1999). Retrieved on 26 November 2010.
828:. HubbleSite (24 August 1999). Retrieved on 26 November 2010.
307:
Hubble
Witnesses the Final Blaze of Glory of Sun-Like Stars
220:. HubbleSite (10 June 1996). Retrieved on 26 November 2010.
1059:
652:. HubbleSite (11 May 2004). Retrieved on 26 November 2010.
152:– The largest (in angular size) bipolar planetary nebula.
521:"Rapid angular expansion of the ionized core of CRL 618"
407:
APOD: 1 November 1999 - The Rotten Egg Planetary Nebula
206:
Binary Progenitor Models for Bipolar Planetary Nebulae
901:
Nemiroff, R.; Bonnell, J., eds. (14 September 2005).
933:
Nemiroff, R.; Bonnell, J., eds. (20 February 2003).
419:
Nemiroff, R.; Bonnell, J., eds. (3 September 2001).
1382:
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1261:
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1197:
1164:
1097:
965:Nemiroff, R.; Bonnell, J., eds. (15 October 1997).
782:Nemiroff, R.; Bonnell, J., eds. (9 February 1996).
718:Nemiroff, R.; Bonnell, J., eds. (18 January 1996).
351:Nemiroff, R.; Bonnell, J., eds. (21 October 1997).
838:Nemiroff, R.; Bonnell, J., eds. (31 August 1999).
262:Nemiroff, R.; Bonnell, J., eds. (26 March 2006).
750:Nemiroff, R.; Bonnell, J., eds. (15 June 2002).
606:Nemiroff, R.; Bonnell, J., eds. (9 April 2003).
574:Nemiroff, R.; Bonnell, J., eds. (26 June 1999).
319:Nemiroff, R.; Bonnell, J., eds. (12 June 2005).
230:Nemiroff, R.; Bonnell, J., eds. (12 July 1995).
662:Nemiroff, R.; Bonnell, J., eds. (13 May 2004).
475:Nemiroff, R.; Bonnell, J., eds. (1 May 2005).
1075:
8:
1338:
1082:
1068:
1060:
903:"The Boomerang Nebula in Polarized Light"
539:
170:"Bizarre alignment of planetary nebulae"
20:
161:
477:"Planetary Nebula Mz3: The Ant Nebula"
967:"Cold Wind From The Boomerang Nebula"
935:"Cold Wind from the Boomerang Nebula"
421:"The Making of the Rotten Egg Nebula"
7:
1414:
196:, Parker et al. 2006, MNRAS, 373, 79
140:– Also known as the Butterfly Nebula
608:"The Egg Nebula in Polarized Light"
321:"M2 9: Wings of a Butterfly Nebula"
14:
1423:
1413:
1404:
1403:
1337:
784:"The Eye of an Hourglass Nebula"
353:"The Butterfly Planetary Nebula"
870:Southern Crab Nebula (He2-104)
232:"Eta Carinae Before Explosion"
1:
752:"MyCn18: An Hourglass Nebula"
720:"MyCn18: An Hourglass Nebula"
451:Calabash Nebula (OH231.8+4.2)
309:(12/17/1997) – Release Images
294:Eta Carinae Nebula (NGC 3372)
146:– The Bug or Butterfly Nebula
972:Astronomy Picture of the Day
940:Astronomy Picture of the Day
908:Astronomy Picture of the Day
845:Astronomy Picture of the Day
789:Astronomy Picture of the Day
757:Astronomy Picture of the Day
725:Astronomy Picture of the Day
669:Astronomy Picture of the Day
664:"Rungs of the Red Rectangle"
613:Astronomy Picture of the Day
581:Astronomy Picture of the Day
482:Astronomy Picture of the Day
426:Astronomy Picture of the Day
358:Astronomy Picture of the Day
326:Astronomy Picture of the Day
269:Astronomy Picture of the Day
237:Astronomy Picture of the Day
1184:Evaporating gaseous globule
541:10.1051/0004-6361/201321704
208:, Soker 1998, ApJ, 496, 833
84:Wings of a Butterfly Nebula
1467:
814:Hourglass Nebula (MyCn 18)
576:"Shells in the Egg Nebula"
528:Astronomy and Astrophysics
305:HubbleSite – NewsCenter –
1398:
1022:The Astrophysical Journal
264:"Doomed Star Eta Carinae"
121:Engraved Hourglass Nebula
25:Bipolar planetary nebula
840:"Symbiotic Star Bubbles"
383:Butterfly Nebula (M 2-9)
174:ESA/Hubble Press Release
95:Mz3 (or Menzel 3) – The
1220:Integrated Flux Nebula
875:9 October 2006 at the
66:
30:
1210:Protoplanetary nebula
1174:Giant molecular cloud
1152:Protoplanetary nebula
638:Egg Nebula (CRL 2688)
507:Ant Nebula (Menzel 3)
63:Planetary Nebula M2-9
61:
24:
1230:Post-stellar nebulae
127:Southern Crab Nebula
115:Red Rectangle Nebula
92:or Rotten Egg Nebula
1321:Intergalactic blobs
1286:High-velocity cloud
1166:Pre-stellar nebulae
1373:Supernova remnants
1269:Interstellar cloud
1248:Pulsar wind nebula
88:OH231.8+4.2 – The
67:
31:
1438:
1437:
1243:Supernova remnant
1215:Wolf–Rayet nebula
1142:Reflection nebula
1125:Supernova remnant
1055:Stellar evolution
71:Homunculus Nebula
39:planetary nebulae
1458:
1427:
1417:
1416:
1407:
1406:
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1328:Lyman-alpha blob
1238:Planetary nebula
1120:Planetary nebula
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997:Boomerang Nebula
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103:Westbrook Nebula
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1356:Largest Nebulae
1332:
1316:
1312:Pinwheel nebula
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1279:Infrared cirrus
1274:Molecular cloud
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1147:Variable nebula
1115:Emission nebula
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1050:Bipolar outflow
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113:HD 44179 – The
107:CRL 2688 – The
90:Calabash Nebula
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1307:Bipolar nebula
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1110:Diffuse nebula
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1098:Visible nebula
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101:CRL 618 - The
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35:bipolar nebula
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1390:Cometary knot
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694:Red Rectangle
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150:KjPn 8 Nebula
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119:MyCn18 – The
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41:are bipolar.
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28:
23:
19:
1306:
1205:Nova remnant
1189:Solar nebula
1130:Nova remnant
1025:
1021:
1015:
1004:
992:
980:. Retrieved
970:
960:
948:. Retrieved
938:
928:
916:. Retrieved
906:
896:
884:
865:
853:. Retrieved
843:
833:
821:
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787:
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755:
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723:
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621:. Retrieved
611:
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579:
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366:. Retrieved
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177:. Retrieved
173:
164:
48:
34:
32:
18:
1179:Bok globule
1135:H II region
1105:Dark nebula
1028:: L63–L66.
982:26 November
950:26 November
918:26 November
855:26 November
799:26 November
767:26 November
735:26 November
679:26 November
623:26 November
591:26 November
547:15 November
492:26 November
436:26 November
368:26 November
336:26 November
279:26 November
247:26 November
179:6 September
82:M2-9 – The
75:Eta Carinae
1429:Wiktionary
1300:Morphology
1291:H I region
1253:Supershell
157:References
109:Egg Nebula
97:Ant Nebula
1361:Planetary
45:Formation
1445:Category
1409:Category
1044:See also
873:Archived
144:NGC 6302
138:NGC 2346
79:Hubble 5
54:Examples
27:PN Hb 12
1451:Nebulae
1419:Commons
1383:Related
1351:Diffuse
1091:Nebulae
534:: A35.
73:around
1375:(SNRs)
1369:(PPNe)
1262:Clouds
1363:(PNe)
1343:Lists
524:(PDF)
984:2010
977:NASA
952:2010
945:NASA
920:2010
913:NASA
857:2010
850:NASA
801:2010
794:NASA
769:2010
762:NASA
737:2010
730:NASA
681:2010
674:NASA
625:2010
618:NASA
593:2010
586:NASA
549:2020
494:2010
487:NASA
438:2010
431:NASA
370:2010
363:NASA
338:2010
331:NASA
281:2010
274:NASA
249:2010
242:NASA
181:2013
131:The
1030:doi
1026:455
536:doi
532:556
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969:.
943:.
937:.
911:.
905:.
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760:.
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728:.
722:.
672:.
666:.
616:.
610:.
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578:.
530:.
526:.
485:.
479:.
429:.
423:.
361:.
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329:.
323:.
272:.
266:.
240:.
234:.
172:.
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1076:t
1069:v
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954:.
922:.
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771:.
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627:.
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340:.
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251:.
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