NGC 4244 (also known as Caldwell 26) is an edge-on spiral galaxy in constellation Canes Venatici. It is a member of the Canes Venatici I group, one of the nearest groups to the local group, and contains active star-forming regions showing strong H-alpha emissions.
The distance from earth is about 14 million light years and the diameter of the visible disk is about 70,000 light years.
By toggling between the images (click on the button) it can be seen that the HII regions (reddish) correlate with bluish regions. That's because the HII gas clouds typically contain many young (blue) stars which are also responsible for the ionization. Furthermore the HII regions also emit [OIII] and H-beta light
which is collected by the blue filter.
FOV: | 0.56° × 0.56° (full view) | ||||||||
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Date: | 2019-2022 | ||||||||
Location: | Pulsnitz, Germany | ||||||||
Instrument: | 400mm Newton at f=1520mm | ||||||||
Camera Sensor: | Panasonic MN34230 | ||||||||
Orientation: | North is up (approximately) | ||||||||
Scale: | 0.8 arcsec/pixel | ||||||||
Total exposure times: |
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Image processing steps where:
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