NGC 3486 is a spiral galaxy located in the constellation Leo Minor, approximately 27 million light-years away from Earth. It has a delicate structure with loosely wound spiral arms and a bright yet small central core. This galaxy is a stunning example of a face-on spiral, meaning it appears nearly flat from our perspective, allowing astronomers to study its structure in detail.
Discovery and Classification
This galaxy was discovered by William Herschel on April 11, 1785. It is classified as a SA(r)c-type spiral galaxy, indicating that it lacks a strong bar structure, has a subtle ring-like feature, and possesses loosely wound arms. These arms contain a mixture of young, blue stars and star-forming regions filled with dust and gas.
Notable Features
One of the most intriguing aspects of NGC 3486 is its low-luminosity active galactic nucleus (LLAGN), suggesting the presence of a supermassive black hole at its core. Unlike highly energetic galaxies with bright, violent quasars, the black hole in NGC 3486 is quiet and less active. However, subtle emissions from the nucleus hint at slow material accretion, making it an important subject for black hole studies.
Scientific Importance
Spiral Galaxy Structure – Its nearly face-on orientation provides a clear view of its spiral pattern, aiding studies of galaxy formation and evolution.
Star Formation – The presence of young, hot stars helps astronomers understand how galaxies produce new generations of stars.
Black Hole Activity – Its faintly active nucleus offers insights into how supermassive black holes behave in less extreme environments.
Despite being less well-known than larger spirals like the Whirlpool Galaxy, NGC 3486 remains an interesting object for astronomers studying galaxy dynamics, star formation, and black hole evolution.
Capture Details:
Telescope: Celestron Nexstar 8se
Filter: Optolong L-Pro
Camera: ZWO ASI294 MC Pro
Mount: Juwei-17
Total Time: 120 x 120″ 4 hours
Capture Software: N.I.N.A.
Guiding: PHD2, ZWO asi120mm mini
Processed in: PixInsight
Additional details on Astrobin.com.