2020 March 25


Star Forming Region S106
Image Credit:
NASA, ESA, Hubble Legacy Archive; Processing & Copyright: Utkarsh Mishra

Explanation: Massive star IRS 4 is beginning to spread its wings. Born only about 100,000 years ago, material streaming out from this newborn star has formed the nebula dubbed Sharpless 2-106 Nebula (S106), featured here. A large disk of dust and gas orbiting Infrared Source 4 (IRS 4), visible in brown near the image center, gives the nebula an hourglass or butterfly shape. S106 gas near IRS 4 acts as an emission nebula as it emits light after being ionized, while dust far from IRS 4 reflects light from the central star and so acts as a reflection nebula. Detailed inspection of a relevant infrared image of S106 reveal hundreds of low-mass brown dwarf stars lurking in the nebula’s gas. S106 spans about 2 light-years and lies about 2000 light-years away toward the constellation of the Swan (Cygnus).

Tomorrow’s picture: Andromeda Station

NASA,ESA,Hubble Legacy Archive;处理及版权:Utkarsh Mishra


明日一图预告:Andromeda Station

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Zixuan Huang