The Whirlpool Galaxy (M51) is an example of a galaxy collision. The two objects are slowly interacting gravitationally, with the effects visible through medium size telescopes.
credit: Bob Fera
Key Takeaways:
- The article promotes spring observation of the Whirlpool Galaxy (M51).
- The observation will also include the interacting galaxy NGC 5195.
- A medium-sized telescope, exemplified by a Celestron 8, is recommended for optimal viewing.
- Optimal viewing conditions require a moonless night and a high celestial position for M51.
In this episode, Astronomy magazine Editor Dave Eicher invites you to head out in the evening this spring to observe one of the sky’s finest deep-sky objects: the Whirlpool Galaxy, also known as M51. And as a bonus, you’ll also see a second galaxy — NGC 5195 — interacting with the Whirlpool. You’ll need a medium size telescope, such as a Celestron 8, to get a good view. Wait until M51 is high in the sky on a moonless night. Good luck!
