The Star Funnel Nebula, also known as Sharpless 126 (Sh2-126) or LBN 428, is a spectacular emission nebula nestled within the constellation of Lacerta, roughly 1200 light-years away from Earth. This vibrant structure, powered by the nearby O9V type star, 10 Lacertae, is an integral part of the Lacerta OB1 association, contributing greatly to its luminescence. With a mass of 27 solar masses and a temperature of 36,000 Kelvin, 10 Lacertae along with other surrounding stars, impart a distinctive yellowish hue to the nebula.
The Star Funnel Nebula is enveloped within a larger nebula composed of warm hydrogen, giving it a visually striking red appearance in optical images. This celestial spectacle offers an awe-inspiring view, making it a favorite among stargazers and astronomers alike.
Image: Composite optical image of Sh2-126 taken with the Nicholas U. Mayall 4-meter telescope at Kitt Peak National Observatory, in Arizona. The image was created using broadband filters that are centred at 436 nm (B-band, blue), 537 nm (V-band, green), and 805 nm (I-band,orange) and a narrow band filter that is centred on the emission of ionised hydrogen (Hα, red).
Image Credit: T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOIRLab/NSF/AURA)
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