Astronomy Picture of the Day ·
The Butterfly Planetary Nebula
The Astronomy Picture of the Day for October 21, 1997 is “The Butterfly Planetary Nebula,” an image. The picture is copyrighted by its creator (Credit & Copyright: J. H. Hora & W. B. Latter (U. Hawaii), 2.2-m Telescope, Mauna Kea). The original explanation runs about 109 words.
From the explanation
“As stars age, they throw off their outer layers. Sometimes a highly symmetric gaseous planetary nebula is created, as is the case in M2-9 , also called the Butterfly.”
— APOD editors, October 21, 1997
Read the full explanation on science.nasa.gov
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At a glance
- Date
- October 21, 1997
- Type
- Image
- Credit
- Credit & Copyright: J. H. Hora & W. B. Latter (U. Hawaii), 2.2-m Telescope, Mauna Kea
- Copyright
- Copyrighted by the credited creator. Ask the copyright holder before reusing it.
- Explanation length
- About 109 words