Pleiades continued

During the night of Monday October 15th, I could add 21 times 5 minute shots to the Pleiades project. Unfortunately the coverage of fields is slightly off, so I have an artefact on the lower right corner, where the images did not overlap. Well, there will always be something… 🙂

M45 Nikon 180mm ED D750 6u 400ISO SQM2015 Meldert Oct2018 NoFilter 66% JPG

And my friend Marc Verhoeven has processed the image above a different way:

M45 same picture, but processed by Marc Verhoeven in PixInsight. Different flavor!

The Pleiades again

Sleeping during a workweek is important! so this image was made unattended – counting on good luck. At the start of the session around midnight the sky was still covered with some high cirrus. At least the street lighting was already switched off.

Image data: Nikon 180mm tele F5.6, no filters, 82x180seconds or about 4 hours of data. It proves the IFN is also visible from light-polluted area’s without the use of filters.

M45 Nikon 180mm ED D750 83x180s no filter SQM 2030 66% St-avg-14292.0s-WC_1_3.0_none-x_1.0_LZ3-NS-full-StSh-add-sc_BWMV_nor-AAD-RL-noMBB_1stLNC_it3-mod-lpc-cbg v3


Continue reading “The Pleiades again”

The famous Pleiades and their environment

Since September the sun has barely appear in our skies and the same is true for stars. So there were only three clear nights without a Moon, all three of which I was so lucky to image the sky. On December 16th I could do this picture with the well-known Pleiades, in a wide field setup.

I used the EQ8 with the old Nikkor 180mm F2.8 ED unguided. An IDAS 2″ filter in front of the objective was used resulting in an effective F/ratio of 3.8.

20 frames of 300″ were stacked and processed by Jean Lammertyn in PI.

M45 (c) Joost Verheyden & Jean Lammertyn Lots of stuff can be seen on this picture: not only the Pleiades (“Seven Sisters, daughters of Atlas) and their surrounding blue reflection nebula, but also the “Interstellar Flux Nebula” of IFN, which is all of the dusty filaments in grey that almost fill the picture, these nebula do emmit light themselves, but merely refelect light from nearby stars.  Some red patches of luminous hydrogen gas show up. I’m happy that with a limited integration time, this kind of result is possible from Hoegaarden. Earlier attempts in processing from my side were not nearly as good as this one! Thanks Jean.