Picture of the Day · NASA
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
Key facts
- Discovered by
- K. Reinmuth
- Discovery site
- Heidelberg Obs.
- Discovery date
- 7 September 1931
- Pronunciation
- / æ t ˈ l æ n t ɪ s /
- Named after
- Island of Atlantis , ( Greek mythology )
- Alternative designations
- 1931 RA · 1958 RQ, 1975 TQ 4 · 1975 VX 6
- Minor planet category
- Mars-crosser
- Symbol
- (astrological)
- Observation arc
- 85.48 yr (31,220 days)
- Aphelion
- 3.0065 AU
- Perihelion
- 1.4941 AU
- Semi major axis
- 2.2503 AU
- Orbital period sidereal
Wikidata facts
- Instance of
- asteroid
- Named after
- Atlantis
- Followed by
- 1199 Geldonia
- Follows
- Q136919
- Parent body
- Sun
- Minor-planet group
- asteroid belt
- Orbital period
- +1233.684151064422
Show 4 more facts
Article
1198 Atlantis, provisional designation 1931 RA, is a rare-type asteroid and eccentric Mars-crosser from the inner regions of the asteroid belt, approximately 3.9 kilometers in diameter. It was discovered on 7 September 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the mythological island of Atlantis.
Orbit