

NGC 3660 and Burçin's Galaxy
2026-05-26
The upper galaxy might be more photogenic, but the lower galaxy is more unusual. The galaxy up top is NGC 3660, a spiral galaxy similar to our own Milky Way galaxy in that it has several bright blue spiral arms and a central bar of stars, dust, and gas. Captured by chance in the featured deep and colorful image, surprisingly, is SN 2026cff, a supernova found just to the right of the central bar. Farther in the distance is the bottom galaxy, known informally as Burçin’s galaxy, but formally cataloged as LEDA 1000714. The center of this galaxy appears to be an old elliptical galaxy, but it is strangely surrounded by not one but two rings of stars. What created Burçin's galaxy is a mystery and remains a continuing topic of research, but it likely involves the accretion of one or more smaller galaxies.
via NASA APOD
706 Hirundo (prov. designation: A910 TF or 1910 KX) is an elongated background asteroid, located in the central region of the asteroid belt. It was discovered by German astronomer Joseph Helffrich at the Heidelberg Observatory on 9 October 1910. The carbonaceous C-type asteroid (Cgh) has a rotation period of 22.0 hours and measures approximately 30 kilometers (19 miles) in diameter. It was named after the bird genus Hirundo, commonly known as swallows.
Orbit and classification
via Wikipedia infobox
via Wikidata · CC0
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).