Redigerer Eta Carinae (avsnitt)

=== Utbrudd ===
I 1837 begynte stjernen et intenst utbrudd der den steg til første magnitude og kortvarig overgikk lysstyrken til stjerner som [[Canopus]].<ref name="frew">{{cite journal|last=Frew|first=David J.|title=The Historical Record of η&nbsp;Carinae. I.&nbsp;The Visual Light Curve, 1595–2000|journal=The Journal of Astronomical Data|volume=10|issue=6|pages=1–76|year=2004|bibcode=2004JAD....10....6F}}</ref><ref name="herschel">{{cite book|last=Herschel|first=John Frederick William|author-link=John Herschel|title=Results of astronomical observations made during the years 1834, 5, 6, 7, 8, at the Cape of Good Hope: being the completion of a telescopic survey of the whole surface of the visible heavens, commenced in 1825|url=https://books.google.com/books?id=8WBNAAAAcAAJ&q=Canopus|publisher=Smith, Elder and Co.|location=London|volume=1|year=1847|pages=33–35|bibcode=1847raom.book.....H}}</ref> Etter utbruddet dannet støv rundt stjernen som fikk den til å falme og bli usynlig innen 1886.<ref name="davidson1997">{{cite journal|last1=Davidson|first1=Kris|last2=Humphreys|first2=Roberta M.|author2-link=Roberta M. Humphreys|title=Eta Carinae and Its Environment|journal=Annual Review of Astronomy and Astrophysics|volume=35|pages=1–32|year=1997|bibcode=1997ARA&A..35....1D|s2cid=122193829|doi=10.1146/annurev.astro.35.1.1}}</ref><ref name="damineli">{{cite journal|last=Damineli|first=A.|title=The 5.52 Year Cycle of Eta Carinae|journal=Astrophysical Journal Letters|volume=460|pages=L49|year=1996|bibcode=1996ApJ...460L..49D|doi=10.1086/309961|doi-access=free}}</ref>

I 1887 begynte Eta Carinae å bli lysere igjen, og nådde 6. magnitude i 1892 før den raskt ble svakere igjen i 1895.<ref name="humphreys1999">{{cite journal|last1=Humphreys|first1=Roberta M.|author1-link=Roberta M. Humphreys|last2=Davidson|first2=Kris|last3=Smith|first3=Nathan|title=η Carinae's Second Eruption and the Light Curves of the η Carinae Variables|journal=The Publications of the Astronomical Society of the Pacific|volume=111|issue=763|pages=1124–1131|year=1999|bibcode=1999PASP..111.1124H|doi=10.1086/316420|doi-access=free}}</ref><ref name="homunculus">{{cite journal|bibcode=2003AJ....125.3222I|title=Discovery of a Little Homunculus within the Homunculus Nebula of η Carinae|journal=The Astronomical Journal|volume=125|issue=6|pages=3222|last1=Ishibashi|first1=Kazunori|last2=Gull|first2=Theodore R.|last3=Davidson|first3=Kris|last4=Smith|first4=Nathan|last5=Lanz|first5=Thierry|last6=Lindler|first6=Don|last7=Feggans|first7=Keith|last8=Verner|first8=Ekaterina|last9=Woodgate|first9=Bruce E.|last10=Kimble|first10=Randy A.|last11=Bowers|first11=Charles W.|last12=Kraemer|first12=Steven|last13=Heap|first13=Sarah R.|last14=Danks|first14=Anthony C.|last15=Maran|first15=Stephen P.|last16=Joseph|first16=Charles L.|last17=Kaiser|first17=Mary Elizabeth|last18=Linsky|first18=Jeffrey L.|last19=Roesler|first19=Fred|last20=Weistrop|first20=Donna|year=2003|doi=10.1086/375306|doi-access=free}}</ref><ref name="smith">{{cite journal|bibcode=2004MNRAS.351L..15S|title=The systemic velocity of Eta Carinae|journal=Monthly Notices of the Royal Astronomical Society|volume=351|issue=1|pages=L15–L18|last1=Smith|first1=Nathan|year=2004|doi=10.1111/j.1365-2966.2004.07943.x|doi-access=free|arxiv=astro-ph/0406523|s2cid=17051247}}</ref>