Tag Archives: asi1600

The Session – 9th October

So, I did make a screen capture of the session on the 9th October, it is not particularly interesting as I was not really commentating throughout, had my webcam flap down for some reason, but you will see certain aspects – we are using the new SEP multi-star algorithm in Ekos, which is great for stability, it does show off the AS290MM mini, it shows how I have to manually focus every so often (APO and SestoSenso arriving soon will be greatly appreciated).

I would not expect anyone to watch this five hour marathon through from start to end, although if you happened to be watching it live it might be interesting if you were acquiring the same target, but certainly skipping through the footage, you might come across something I’m doing wrong, or right, and have some comments on my progress in this field.

Don’t expect so see the thumbnail in this video to appear in the video itself, this is the acquisition phase of individual sub-exposures, I will post a video on processing of the data, including this night’s, in a later video, when we’ve hopefully improve on the data substantially. The preview picture displayed is the accumulation of data so far, without any discarding of bad data so far.


I do have to wonder, how I will proceed when the APO arrives, it is a f/7 telescope, while these are taken on a f/5 telescope. Maybe I can proceed with a 3×3 mosaic, or something similar 3×2 or 2×3 and add to the data, or perhaps I need to choose to start all over again. APP will help when I start, as it will quantify the quality of the images I already have, and be able to merge frames from different optical equipment.

As always, if you are here as a genuine viewer with an interest in Astrophotography, then please leave a comment, I will moderate and reply if necessary.

Heart Nebula – More Data from 9th October, Oiii & Sii subs

So last night, we obtained some more Oiii sub-exposures in order to bring the number to the same level as our Hydrogen Alpha sub-exposures. I also started to obtain some Sii exposures, only managed 10 or so for each pane of the mosaic.
It looks like I should obtain more Hydrogen Alpha sub exposures as well now, as the quality does not appear to be as good as the other narrow-band wavelengths, and of course Hydrogen Alpha is a strong part of the composition.
You will notice we are now using a different palette for the RGB composition.
I probably need to flex up some of my GIMP processing skills as I still feel I am floundering around not really knowing what I am doing.
Anyway, without further ado, please find below the current rendition:

Here is a link to the online worldwide telescope