description NGC 2346 Overview
NGC 2346 is a bipolar planetary nebula in Monoceros, formed from gas expelled by a dying star. Its narrow waist and two opposing lobes create the familiar butterfly appearance, and observations identify a close binary system at the center whose interaction influenced the nebula's shaping. The object is studied as an example of how stellar companions can affect late stages of stellar evolution.
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Why does NGC 2346 have a butterfly shape?
NGC 2346 is a bipolar planetary nebula with a narrow waist and two opposing lobes, so its gas resembles butterfly wings. Astronomers link that geometry to the interaction of the central binary as the dying star expelled its outer envelope. [MNRAS study](https://academic.oup.com/mnras/article/482/4/4951/5159483)
What is at the center of NGC 2346?
A close binary system lies at the center, often identified as V651 Mon. Older radial-velocity work reported an orbital period of roughly 16 days, although later studies have questioned how simple that post-common-envelope interpretation is. [MNRAS study](https://academic.oup.com/mnras/article/482/4/4951/5159483)
Where is NGC 2346 located?
It lies in the constellation Monoceros, near Delta Monocerotis and close to the celestial equator. It is a deep-sky object normally viewed with a telescope or long-exposure imaging rather than the naked eye. [NGC 2346 overview](https://en.wikipedia.org/wiki/NGC_2346)
Is NGC 2346 a place where planets are forming?
No. Planetary nebula is an old naming term for an ionized shell shed by a dying star, not a planet nursery, and NGC 2346 represents a late stage of stellar evolution. [NGC 2346 overview](https://en.wikipedia.org/wiki/NGC_2346)
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