NGC 5248
About image
NGC 5248 is a barred spiral galaxy visible in the constellation Bootes, of tenth magnitude and dimensions 6.2'x4.5'.
It is a quite showy galaxy but it seems to be little considered by astrophotographers: even here on Astrobin there are not many images.
NGC 5248 has a bright nucleus crossed by a bar, from which two rather weak main spiral arms depart, plus other secondary arms; its diameter is estimated to be 123,000 light years, so it is a galaxy slightly larger than our Milky Way
[info adapted from Wikipedia]
Technical data R 14x300" bin3 -20C
Optic GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8
Mount 10Micron GM2000 HPSII
Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions
Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB
Guiding system ZWO OAG-L with guide camera ASI 174MM
Exposure details L 30x300" bin3 -20C
G 14x300" bin3 -20C
B 14x300" bin3 -20C
Total integration 6h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator
SQM-L 21.37
Location Promiod (Aosta Valley, Italy), own remote observatory
Date 5/26 April 2022
© Roberto Marinoni 2019 - All rights reserved