NGC 2685 (also known as the Helix Galaxy) is a lenticular and polar ring Seyfert Type 2 galaxy in the constellation Ursa Major.Its velocity with respect to the cosmic microwave background is 1003 ± 9 km/s, which corresponds to a Hubble distance of 48.2 ± 3.4 Mly (14.79 ± 1.05 Mpc). [1] Additionally, eight non-redshift measurements give a distance of 42.56 ± …

Explanation: NGC 2685 is a confirmed polar ring galaxy - a rare type of galaxy with stars, gas and dust orbiting in rings perpendicular to the plane of a flat galactic disk. The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring.

2024年4月10日 · The very unusual galaxy NGC 2685, also known as the Helix Galaxy, is located about 40 million light-years away in the constellation Ursa Major.This image was captured by the Gemini North telescope, one half of the International Gemini Observatory, operated by NSF NOIRLab which is funded by the U.S. National Science Foundation.NGC 2685 is a peculiar lenticular galaxy known as a polar ring galaxy.

2025年3月8日 · NGC 2685 was discovered by the German astronomer Wilhelm Tempel on August 18, 1882. It is one of the two nearest polar ring galaxies to Earth, along with NGC 660 in the constellation Pisces, which lies 45 million light-years away. The morphology of NGC 2685 has frequently been a target of studies.

NGC 2685 is a lenticular and polar ring galaxy that lies about 41 million light years distant. Polar ring galaxies are rare and exhibit an outer ring of stars, gas and dust that orbits in a plane per...

2023年1月29日 · ngc2685是坐落于大熊座的一个极环星系。极环星系是外围环绕的恒星和气体越过极区的星系，这些绕过极区的环被认为是两个星系交互作用之后形成的。ngc2685是最早被研究认定的极环星系之一，图中可以看见黯淡的尘埃带围绕在圆盘星系（亮部）周围。

2024年4月19日 · NGC 2685は「極リング銀河（polar ring こちらは「おおぐま座（大熊座）」の方向約4000万光年先の銀河「NGC 2685」です。 淡く輝く中心部を包み込むような幅の広いリング構造と、そのさらに外側を大きく取り囲むレモン形の構造が入り組んだ複雑な姿が印象的です。

2014年3月14日 · ngc 2685是一个被证实的极环星系——一种罕见的恒星、气体和尘埃在垂直于平坦星系盘平面的环上运行的星系。 这种奇怪的结构可能是由于一个圆盘星系偶然捕获了另一个星系的物质，捕获的碎片排列成一个旋转的环。

2021年5月13日 · ngc 2685 視野角:約11′ x 07’ ↑n NGC 2685は、特異銀河カタログではArp 336の極環銀河と命名された奇妙な構造の銀河です。 その構造は拡大した写真でわかるように、レンズ状銀河のディスクに対して垂直に周回する、ガス、星、塵からなる環が取り巻き ...

2014年3月14日 · Explanation: NGC 2685 is a confirmed polar ring galaxy - a rare type of galaxy with stars, gas and dust orbiting in rings perpendicular to the plane of a flat galactic disk. The bizarre configuration could be caused by the chance capture of material from another galaxy by a disk galaxy, with the captured debris strung out in a rotating ring.