NGC 5033, NGC 5005

This picture shows the unbarred spiral galaxy NGC 5033, located about 40 million light-years away in the constellation of Canes Venatici. The galaxy is similar in size to our own galaxy, the Milky Way, at just over 100 000 light-years across. Like in the Milky Way NGC 5033’s spiral arms are dotted with blue regions, indicating ongoing star formation. The blue patches house hot, young stars in the process of forming, while the older, cooler stars populating the galaxy’s centre cause it to appear redder in colour. In contrast to the Milky Way NGC 5033 is missing a central bar. Instead it has a bright and energetic core, which is powered by a supermassive black hole. This active nucleus gives it the classification of a Seyfert galaxy. Due to the ongoing activity the core of NGC 5033 shines bright across the entire electromagnetic spectrum. This released energy shows that the central black hole is currently devouring stars, dust and gas getting too close to it.

NGC 5033

Telescope: 16″ f3.75 Dream Scope
Camera: FLI ML16803
Mount: ASA DDM85
Exposure: 7 hours (58x300s L + 3x9x300s RGB)
Date: December 2019 – January 2020
Location: Southern Alps, France

In the top right corner of the picture below with the larger field of view you can also see NGC 5005. NGC 5005 is an inclined spiral galaxy with a relatively bright core and bright disk that contains multiple dust lines. X-ray observations of this galaxy revealed it contains a variable point-linke X-rays source in its nucleus. That may imply it also contains supermassive black hole. Strong X-ray emission is expected from the hot, compressed gas in the environment outside the black hole in the active galaxy nucleus. Some scientits believe that distorted spiral arms of NGC5033 are an effect of tidal forces from nearby NGC 5005, but others claim that galaxies are not yet close enough. At the bottom of the picture, right below NGC 5033, are Holmberg VIII/UGC 8303 (R) and UGC 8314 (L). They are considered as satellite galaxies of NGC 5033, like we have the two Magellanic Clouds.

NGC 5033 – NGC 5005 – UGC 8303 – UGC 8314 and many more

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