Hickson 44 Galaxy Group
The Hickson 44 galaxy group is a captivating assembly of galaxies located in the constellation Leo, approximately 60 million light-years from Earth. This compact group, also known as Arp 316, consists of four primary galaxies: NGC 3190, NGC 3193, NGC 3185, and NGC 3187. Each galaxy presents unique features that contribute to the group's overall visual and scientific interest.

NGC 3190: The dominant spiral galaxy in the group, NGC 3190, is classified as an Sa-type spiral galaxy. It is distinguished by its tightly wound spiral arms and a prominent dust lane that cuts across its core, giving it an edge-on appearance. NGC 3190 has an apparent magnitude of 12.2 and spans about 75,000 light-years in diameter.

NGC 3193: This elliptical galaxy appears as a smooth, elongated object and is classified as an E2 elliptical galaxy. Its bright core and diffuse halo contrast sharply with the more structured spiral galaxies nearby. NGC 3193 has an apparent magnitude of 11.6 and is roughly 60,000 light-years in diameter.

NGC 3185: A barred spiral galaxy (type SB(rs)b), NGC 3185 features a central bar structure with well-defined spiral arms. Its face-on orientation allows us to appreciate the symmetry and complexity of its spiral pattern. NGC 3185 has an apparent magnitude of 12.0 and measures about 55,000 light-years across.

NGC 3187: Unlike the other members, NGC 3187 exhibits a more irregular and warped appearance, likely due to gravitational interactions within the group. This SB(rs)c-type spiral galaxy's distorted arms are a testament to the dynamic and evolving nature of galaxy groups. NGC 3187 has an apparent magnitude of 13.4 and spans approximately 65,000 light-years.

The Hickson 44 group is a fascinating example of galactic interaction and evolution. The gravitational forces at play within the group lead to a variety of morphological features, making it a favorite target for both amateur and professional astronomers. Observing and imaging this group provides insights into the processes that govern galaxy formation and interaction on a cosmic scale.

Technical Details:

• Coordinates: RA 10h 18m 0s | Dec +21° 49′ 0″
• Distance: ~60 million light-years
• Apparent Magnitude: 11.6 (NGC 3193), 12.2 (NGC 3190), 12.0 (NGC 3185), 13.4 (NGC 3187)