Stunning telescopic image showcasing the Squid Nebula (Ou4) nestled within the Flying Bat Nebula (Sh2-129) in the Cepheus constellation. The image, a composite of 20 hours of data, reveals the Squid Nebula's distinct bipolar shape and its possible location within Sh2-129, approximately 2,300 light-years away and spanning nearly 50 light-years. The reddish hues represent hydrogen emission from Sh2-129, while the blue-green highlights doubly ionized oxygen in Ou4, potentially an outflow driven by the triple star system HR8119.

Astronomy Picture from 11/09/2015

A Giant Squid in the Flying Bat

Source: https://apod.nasa.gov/apod/ap150911.html


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