M8, M20 & NGC 6523 Lagoon Nebula and Trifid Nebula + Mirko Tondinelli + L-QEF, L-Para
M8, M20 & NGC 6523 Lagoon Nebula and Trifid Nebula
Credit: Mirko Tondinelli (Italy)
Filters: Optolong L-QEF (L-Quad Enhance Filter), and L-Para dual narrow band filters
16 hours ago ·
M8, M20 & NGC 6523 Lagoon Nebula and Trifid Nebula
Hello everyone, I am here to show you my latest work, which was quite a challenge for me, due to the integration time and the height of the subject.
TIME because in two nights I acquired 29 lights (2.4 hours) in broadband with the Optolong L-QEF filter and 29 lights in narrowband (Ha and O3 from 10nm) with the Optolong L-Para filter.
HEIGHT of the subject because from my position it does not rise more than 24° in the sky pointing south, where I have the lights of the city of Tivoli and further away (towards the south/west) I have the villages of the Castelli Romani.
In particular, for this processing I performed an HaO3RGB, initially using Pixinsight and then switching to Photoshop.
I hope you like it.
The M8 nebula, also known as the Lagoon Nebula, and the M20 nebula, known as the Trifid Nebula, are two famous nebulae located in the constellation Sagittarius. The Lagoon Nebula is an emission nebula, an area of star formation with ionised gas. The Trifid Nebula, on the other hand, is a nebula composed of three different types: an emission nebula, a reflection nebula and a dark nebula, which explains its name.
These two nebulae are among the most famous and visible in the summer sky and represent an excellent opportunity for astronomical observation. The Lagoon Nebula is a large star-forming region, while the Trifid Nebula has a more complex structure with emission, reflection and dark areas.
Technical data
TS 90 owl reduced to 430mm with the Tecnosky 0.8x variable reducer
Omegon 571vTec camera
Optolong L-QEF and L-Para filters
Rowan eq6 mod mount
Dates:
1 June with 36% moon
29 300" lights with L-QEF
4 June with moon at 63%
29 300" exposures with L-Para
Total exposure time 4h 50'
Hope you like it.
