Trifid Nebula - details in description
Messier 20 a.k.a Trifid Nebula
……………………………………………
Discovered in the 18th century by Charles Messier, the Trifid Nebula has an apparent diameter of about 25 light years, is located a little over 4000 light years from Earth, and can be observed in the Centaurus Arm of the Milky Way, at the edge of the constellation Sagittarius.
What is special about this deep sky object is that M20 is a combination of an open cluster (in the middle of the red area), an emission nebula (red area), a reflection nebula (blue area) and a dark nebula (those gaps in the star field). Unfortunately, this dark nebula does not stand out very well in the attached image because I had less than 3 hours of “photon collection”.
Equipment and settings:
Mount: SW EQ6R
Telescope: Explore Scientific 102ED + 0.75 APM flattener/reducer
Camera: ASI 533MM Pro
Filters : LRGB Astrodon
Total integration: 2h47’ ( R – 12x3min, B – 15x3min, G – 12x3min, L – 25x2min )
Edit in Pixinsight.
Location: my Bortle 3-4.
Trifid Nebula - details in description
Messier 20 a.k.a Trifid Nebula
……………………………………………
Discovered in the 18th century by Charles Messier, the Trifid Nebula has an apparent diameter of about 25 light years, is located a little over 4000 light years from Earth, and can be observed in the Centaurus Arm of the Milky Way, at the edge of the constellation Sagittarius.
What is special about this deep sky object is that M20 is a combination of an open cluster (in the middle of the red area), an emission nebula (red area), a reflection nebula (blue area) and a dark nebula (those gaps in the star field). Unfortunately, this dark nebula does not stand out very well in the attached image because I had less than 3 hours of “photon collection”.
Equipment and settings:
Mount: SW EQ6R
Telescope: Explore Scientific 102ED + 0.75 APM flattener/reducer
Camera: ASI 533MM Pro
Filters : LRGB Astrodon
Total integration: 2h47’ ( R – 12x3min, B – 15x3min, G – 12x3min, L – 25x2min )
Edit in Pixinsight.
Location: my Bortle 3-4.