Home / Science / Astronomy / The Spiral Galaxy : NGC 4274

The Spiral Galaxy : NGC 4274

NGC 4274 is an odd barred spiral in Coma Berenices about 50 to 60 million light-years distant by redshift. Other measurements put it much closer or further but also average about 55 million light-years. If correct it is likely a member of the Virgo Cluster. It is classed as (R)SB(r)ab LINER. What drew my attention to it is the odd dust lane that suddenly veers in toward the core of the galaxy. Dust lanes down a bar are common but these don’t also follow the spiral arm pattern.

Processed with MaxIm DL

Also they are usually rather weak compared to the dust lanes in the spiral arms. This one is a narrow lane that seems to define the inner edge of the spiral arms that form a ring-like structure getting strong as it approaches the bar then suddenly veers across the bar and toward the side of the core. The core is oval but at nearly right angles to the bar with each end rather pointed.


The dark lane runs to one of these pointed ends. In IR light papers indicate there’s an inner bar and ring structure at nearly right angles to the large outer bar and ring. This apparently is what is causing the bright core region to be misaligned with the main bar.

About Mohammad Daeizadeh

  • تمامی فایل ها قبل از قرار گیری در سایت تست شده اند.لطفا در صورت بروز هرگونه مشکل از طریق نظرات مارا مطلع سازید.
  • پسورد تمامی فایل های موجود در سایت www.parsseh.com می باشد.(تمامی حروف را می بایست کوچک وارد کنید)
  • Password = www.parsseh.com

Leave a Reply

Your email address will not be published. Required fields are marked *