#triffidnebula — Public Fediverse posts

Here is a #SouthernSky classic - #C70 - The #SouthernPinwheel or #NGC300 .

This was shot over the course of four nights in the last week, with the last night being shot in OIII/SII , because I had that set up from shooting the #TriffidNebula earlier in the night.

This extra session has added some interesting highlights. In particular in the lower left tip of one of the arms, there is what appears to be a large nebula (but is more likely a group of them).

Postprocessed in #Dwarflab StellarStudio and #Snapseed.

#Astronomy #Astrophotography #Astrodon #SmartTelescope #BackYardAstronomy

#M8 and #M20 the #LagoonNebula and #TriffidNebula .

Shot last night over 3 hours from my front yard.

#Dwarf3 OIII/Ha and post processed in Stellar Studio and #Snapseed .

#Astrodon #Astronomy #Astrophotography #SouthernSky

Last night we had a lovely clear sky, so I set up a mosaic with the Dwarf3 around the Triffid and Lagoon nebulae.

I applied my usual post processing steps, and I got almost as good a result as I got up in Beacon with the DwarfII. But only almost, and with twice as long an exposure.

Let's just look at that for a moment, because not all is as it seems.

The D3 has a 38mm aperture, and the D2 25mm. This means that the D3 has twice the light gathering capability of the D2, and has a more sensitive detector. So this image has four times the light gathered as the image in Beacon, but it is also a mosaic covering almost four times the area, so we come back down to the same amount of light per pixel as the D2 got in a true dark sky.

What this means is that if I had taken this shot last week in Beacon, it would have been truely spectacular!

2 hours 8 minutes total exposure, gain 80, Ha/OIII filter.

#Dwarf3 #SmartTelescope #Snapseed #Astrophotography #Astronomy #Astrodon #TriffidNebula #LagoonNebula #M8