description Lower's Nebula Overview
Lower's Nebula is the common name for Sharpless 2-261, a faint H II emission region in the constellation Orion. It consists of ionized interstellar gas associated with star formation and is commonly discussed in connection with the hot star HD 41997, which is identified as its principal ionizing source. Its low surface brightness makes it primarily an object for astrophotography and deep-sky observation rather than casual naked-eye viewing.
help Lower's Nebula FAQ
What is the catalog name for Lower's Nebula?
Lower's Nebula is commonly identified as Sharpless 2-261, or Sh2-261. It is a faint H II emission region in the constellation Orion.
What type of object is Lower's Nebula?
It is an H II region, meaning a cloud of ionized interstellar gas associated with star formation. The nebula is faint and is often discussed in connection with the hot star HD 41997.
Where in the sky is Lower's Nebula located?
Lower's Nebula is located in Orion. It is not one of the brightest naked-eye nebulae, so observers generally need a telescope and suitable sky conditions to study it.
Which star is associated with Lower's Nebula?
The nebula is commonly discussed alongside HD 41997, a hot star linked to the ionized gas. That relationship helps explain why the object is classified as an H II emission region.
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