NGC 4151 is an intermediate spiral Seyfert galaxy with weak inner ring structure located 15.8 megaparsecs (52 million light-years) from Earth [4] in the constellation Canes Venatici. The galaxy was first mentioned by William Herschel on March 17, 1787; it was one of the six Seyfert galaxies described in the paper [5] which defined the term.

2021年1月21日 · NGC 4151 (UGC 7166, PGC 38739 and at least 50 other designations according to SIMBAD) is a Seyfert 1 (https://en.wikipedia...eyfert_galaxies) galaxy with a bright core and faint arms. While papers show varying distance estimates, the newest is approximately 60 million light-years away in Canes Venatici.

2022年5月15日 · NGC 4151假色影像，蓝色为X射线、黄色为可见光、红色为无线电波。 NGC 4151 是位于 猎犬座 的带有疏松内环结构的 中间螺旋 西佛星系，距离地球19 百万秒差距 （62 × 10 6 光年） [3]，天球上位于 猎犬座。 该星系由 威廉·赫歇尔 于1787年3月17日首次记录；它0也是定义西佛星系的论文中提及的两个星系之一 [4] 。 NGC 4151是核心中拥有快速成长中的 超大质量黑洞 星系中距离地球最近的其中一个 [5]。 天文学家推测NGC 4151的核心可能存在环绕质 …

2020年3月31日 · The Eye of Sauron, also known as NGC 4151, UGC 7166 and PGC 38739, is an Intermediate Spiral Seyfert Galaxy, located inside Canes Venatici Constellation (Hunting Dog Constellation).

A northern NGC4145 has an elliptical shape with a long axis of a bit smaller than 6 arc minutes. Another southern one has an ID of NGC4151, having an elliptical central bulge and extraordinary dimmed arms wound around it. The galaxy is one of the closest Seyfert galaxies in which the massive black holes are positioned.

NGC 4151 (UGC 7166, 1208+3941) -- This is probably the best studied Seyfert 1 galaxy. The archival image is a 900 s exposure with the f/48 FOC in its 512 × 1024 ``zoomed'' pixel mode. The image was taken after the HST refurbishment mission and the installation of COSTAR, and so is free of spherical aberration.

2018年4月29日 · NGC 4145 (PGC 38693, UGC 7154 and others) is the barred spiral at the top center of the image. It is located approximately 68 million light-years away in Canes Venatici. NGC 4151 (PGC 38739, UGC 7166 and others) is the odd-shaped (almost like Saturn) Seyfert 1 galaxy at the bottom center.

Notes on the observation and reduction of UGC 7166 Observations . Quality: reasonable Observational parameters at full resolution (see also here for more information). UGC Bandwidth (MHz) Number of channels Central velocity of spectral band …

NGC 7166 is a Elliptical/Spiral Galaxy in the Grus constellation. NGC 7166 is situated south of the celestial equator and, as such, it is more easily visible from the southern hemisphere. Given its visual magnitude of 11.84, NGC 7166 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

6 天之前 · ugc 7166 j121032.5+392421 casg 1530 2maxi j1210+394 uzc j121032.5+392421 j121032.5+392421 1e 1208.0+3941 maxi j1210+394 vlssr j121032.4+392422 j121032.5+392421 2e 2603 mcg+07-25-044 wb 1208+3941 j121032.5+392421 2e 1208.0+3941