ETA CARINAE NEBULA
Winning challenges of the worst PL in Brazil, 3 km from the city center, using a non-refrigerated camera
TS 80mm triplet F4
ASI 174mm no-cooled
H-alpha 8x300
SII 8x300
OIII 8x300
better quality
https://www.astrobin.com/full/343881/0/…
Sao Paulo-SP-Brazil
04/19/2018