NGC 4725 is an intermediate barred spiral galaxy with a prominent ring structure, [9] located in the northern constellation of Coma Berenices near the north galactic pole. [10] It was discovered by German-born British astronomer William Herschel on April 6, 1785. [11] The galaxy lies at a distance of approximately 40 megalight-years [4] from ...

ngc 4725是一個位於后髮座，距離大約4,000萬光年的中間 棒狀 螺旋 星系。 NGC 4725也是一個 西佛星系 ，這表明它有一個超大質量黑洞的活躍星系核。 相關條目

NGC 4725是一个位于 后发座，距离大约4,000万 光年 的 中间 棒旋星系。 包括我们 银河系 在内的大多数 螺旋星系，都有二根或更多的旋涡臂，但是NGC4725却只有单根旋臂。 在这张清晰的彩色影像里，紧紧缠绕着星系的旋臂，上头镶着蓝色的年 新星 团。 除此之外，这个怪异的星系也有黝黑的尘埃带、鲜明的拱心环、以及由年老 恒星 所聚成的黄白色中心棒。 NGC 4725位在北天的后发座内，距离为4千1百万光年，大小超过十万光年。 为探索单漩臂如何形成的计算机模拟计 …

2015年4月16日 · NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy's overall rotation.

NGC 4725 is a Intermediate Spiral Galaxy in the Coma Berenices constellation. NGC 4725 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its visual magnitude of 12.44, NGC 4725 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

2013年5月30日 · NGC 4725 is over 100 thousand light-years across and lies 41 million light-years away in the well-groomed constellation Coma Berenices. Computer simulations of the formation of single spiral arms suggest that they can be either leading or trailing arms with respect to a galaxy's overall rotation .

2015年9月3日 · At about a 100,000 light-years across, its likely companion on the right is the much larger NGC 4725. At first glance NGC 4725 appears to be a normal spiral galaxy, its central region dominated by the yellowish light of cool, older stars giving way to younger hot blue star clusters along dusty spiral outskirts.

2023年5月14日 · NGC 4725, the main charachter of this picture, is an intermediate barred spiral galaxy with a prominent ring structure, located in the northern constellation of Coma Berenices near the north galactic pole. It was discovered by William Herschel on April 6, 1785.

This is an image of the one-armed spiral galaxy NGC 4725 with the smaller adjacent galaxy NGC 4712, taken the night of May 23, 2023 from the New Mexico Astronomy Village near Deming, New Mexico. It is a total of 4 hours of exposure through LRGB filters with a Stellarvue SVX180T telescope and ZWO ASI6200MM camera.

ngc 4725是一个位于后发座，距离大约4,000万光年的中间 棒状 螺旋 星系。 NGC 4725也是一个 西佛星系 ，这表明它有一个超大质量黑洞的活跃星系核。 相关条目