My first attempt at NGC 4449

A failed attempt really, another one in my recent series of targets that I don't really have the focal length for, but hey ho it all about learning

When i settled on the target it looked small so I thought i would try binning (which i have never used before) i miss remembered what this did ... i was thinking it would change the image scale

Anyway as a result of the binning i have got even less resolution than i would have otherwise .... dooh , plus i had to redo my calibration frames

Rather than carry on collecting more data i am posting this, i will come back to this at some point when i have the right kit

Lume 115 x 30 sec

Red 60 x 30

Grn 60 x 30

Blue 42 x 30

Ha 12 x 300

Red channel is 50% Red 50% Ha

Wikipedia tells us .....

NGC 4449, also known as Caldwell 21, is an irregular Magellanic type galaxy in the constellation Canes Venatici, being located about 12 million light-years away. It is part of the M94 Group or Canes Venatici I Group that is relatively close to the Local Group hosting our Milky Way galaxy.[3][4]

Characteristics

This galaxy is similar in nature to the Milky Way's satellite galaxy, the Large Magellanic Cloud (LMC),[5] though is not as bright nor as large. NGC 4449 has a general bar shape, also characteristic of the LMC, with scattered young blue star clusters.

Unlike the Large Magellanic Cloud, however, NGC 4449 is considered a starburst galaxy due to its high rate of star formation (twice the one of the LMC)[6] and includes several massive and young star clusters,[7][8] one of them in the galaxy's center.[9]

Photos of the galaxy show the pinkish glow of atomic hydrogen gas, the telltale tracer of massive star forming regions.

NGC 4449 is surrounded by a large envelope of neutral hydrogen that extends over an area of 75 arc minutes (14 times larger than the optical diameter of the galaxy). The envelope shows distortions and irregularities likely caused by interactions with nearby galaxies.[10]

Interactions with nearby galaxies are thought to have influenced star formation in NGC 4449 and, in fact, in 2012 two small galaxies have been discovered interacting with this galaxy: a very low surface brightness disrupted dwarf spheroidal with the same stellar mass as NGC 4449's halo but with a ratio of dark matter to stellar matter between 5 and 10 times that of NGC 4449[11] and a highly flattened globular cluster with two tails of young stars that may be the nucleus of a gas-rich galaxy.[12] Both satellites have apparently been disrupted by NGC 4449 and are now being absorbed by it.