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July 2025
- How weird is the Milky Way?
- We review William Optics’ RedCat91 refractor
- Rediscovering Beverly Lynds’ dark nebulae
- Wonders to observe in the constellation Andromeda
Picture of the Day
Shells of its former self
Adriano Anfuso/Vikas Chander
The elliptical galaxy NGC 474 (lower right) contains multiple shell-like structures and tidal tails as a result of past interactions with other galaxies. The galaxy is currently interacting with a neighboring spiral galaxy, NGC 470 (just to its left). The lenticular galaxy NGC 467 (at left) is a background galaxy, more than twice as distant. The imagers used a 24-inch scope to capture 20 hours of data.