APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.


NGC 772: The Fiddlehead Galaxy
Explanation: Why does this galaxy look like a curly vegetable ? The Fiddlehead spiral galaxy likely gets its distorted spiral appearance from a gravitational interaction with its close-by elliptical companion NGC 770 , seen just below. Cataloged as NGC 772 and Arp 78, the Fiddlehead spans over 200,000 light years, is a nearby 100 million light years beyond the stars of our Milky Way galaxy, and is visible toward the constellation of the Ram (Aries). But in the featured image , the Fiddlehead appears to have another companion -- one with a long and fuzzy tail: Comet 43P/Wolf-Harrington . Though the comet appears to be aimed straight at the massive galaxy, it is actually much closer to us, residing only light minutes away -- well within our Solar System. The comet will never reach the distant spiral galaxy, nor is it physically related to it. By a fortunate trick of perspective, though, these two cosmic wonders briefly share the same frame taken late last year from Calern , France .
| Date | March 12, 2025 |
|---|---|
| Credit | Image Credit & Copyright: Jean-François Bax & Serge Brunier , OCA/C2PU ; Text: Ogetay Kayali (Michigan Tech U.) |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |


