NGC 1313
In 2013, during a stay at an astrofarm Tivoli in Namibia, I imaged the irregular barred galaxy NGC 1313 using a rented observatory. The excellent transparency and very dark southern skies made it possible to capture this relatively bright but structurally complex galaxy in great detail.
This galkaxy is located in the constellation Reticulum, approximately 13–15 million light-years away. It is classified as a barred irregular galaxy, displaying a chaotic and asymmetric appearance rather than the orderly spiral arms seen in many disk galaxies. Its distorted morphology is likely the result of past gravitational interactions with a smaller companion galaxy.
The galaxy is particularly rich in star-forming regions, which appear as bright blue knots scattered throughout its irregular structure. Observations in multiple wavelengths have also revealed several ultraluminous X-ray sources (ULXs) within NGC 1313, thought to be associated with accreting black holes or neutron stars. These energetic objects make the galaxy an important laboratory for studying high-energy astrophysical processes.
Imaging NGC 1313 under Namibia’s pristine skies allowed the mottled structure of the galaxy, its patchy dust lanes, and numerous star-forming regions to stand out clearly against the deep background of the southern sky.
The data calibration and registration, as well as the final image processing, were all done with PixInsight.
The images were taken with the following equipment:
- Location: Tivoli, Namibia
- Telescope: 12″ ASA Astrograph
- Focal length [mm]: 1076
- Focal ratio: 3.6
- Mount: ASA DDM85
- Camera: FLI Microline ML8300
- Filter: L:R:G:B
- Exposure time [min]: 70:3:30:35
- Resolution: 1.04″/px
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