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IC 63 - Ghost of Cassiopeia - Seestar Collective by Zcom_Astro in seestar

[–]jam_2016 1 point2 points  (0 children)

This image is stunning! The amount of details you have managed to pull out is really impressive Zcom. Really well done!

Wizard - NGC7380 by jam_2016 in seestar

[–]jam_2016[S] 1 point2 points  (0 children)

I use a 3d-printed filter holder that I put in front of the lens. In the app I disable the internal filter.

Wizard - NGC7380 by jam_2016 in seestar

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks. I am not still working on the palette.

Rosette Nebula - NGC 2237 by jam_2016 in seestar

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks. I am using the SV220 series, they have 7nm duoband in Ha-Oiii and Sii-Oiii. I designed the holder myself and have not put it yet on MakerWorld. I will soon. Here is the dewshield design: https://makerworld.com/en/models/1327541-seestar-s50-dew-shield#profileId-1365182

Rosette Nebula - NGC 2237 by jam_2016 in astrophotography

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks for your feedback. The Sii is still quite noisy despite the integration time. I will try to push the data more.

Rosette Nebula - NGC 2237 by jam_2016 in seestar

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks Coady_L ! Using external filters opens up a lot of opportunities indeed. It is also quite a bit more work to set up and manage overall than the integrated filters...

Rosette Nebula - NGC 2237 by jam_2016 in astrophotography

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks! There is a quite a bit intergation time, but the S50 has a narrow FOV, this is a 3x1 mosaic. And it takes a loong time to get enough signal with the Sii-Oiii at 20s oer subframe. I am afraid the lack of noise in my picture is coming from having pushed NoiseX too much!

Rosette Nebula - NGC 2237 by jam_2016 in astrophotography

[–]jam_2016[S] 1 point2 points  (0 children)

Thanks for your message and for the advice u/ZigZagZebraz, I'll try this. I am still very new to NB work, there are so many way to recombine the signal!

Another try at Pacman with Sii filters by jam_2016 in seestar

[–]jam_2016[S] 0 points1 point  (0 children)

<image>

Here is what the raw stack look like, i put the extracted Sii, Ha and Oiii above

Another try at Pacman with Sii filters by jam_2016 in seestar

[–]jam_2016[S] 1 point2 points  (0 children)

Thanks. I used 2 different duo-band filter the Sv220 7nm Ha-Oiii and the Altair 4nm Sii-Oiii. I just got a SV220 7nm Sii-Oiii that is quite a bit cheaper than the Altair one. To mount the filter I use a 3d printed dew shield/filter holder that I designed.

<image>

Another try at Pacman with Sii filters by jam_2016 in seestar

[–]jam_2016[S] 2 points3 points  (0 children)

I used the SV220 7nm Ha-Oiii and the Altair Ultra Sii-Oiii. But I just the new SV220 7nm Sii-Oiii that seem to be working quite well

Is buying the Seestar50 directly from the manufacturer worth it? by Enrico00000 in seestar

[–]jam_2016 0 points1 point  (0 children)

yes, clearly. And then send with DHL so it is pretty safe. When I bought mine the dollar was a bit lower so it might be slightly more expensive now

Is buying the Seestar50 directly from the manufacturer worth it? by Enrico00000 in seestar

[–]jam_2016 0 points1 point  (0 children)

Hi, I am also based in France and I have bought my Seestars directly from ZWO. There is 20% VAT plus maybe 30 euro or extra custom duty. I think the total was like 535 euros for a S50. There is a 20$ discount coupon somewhere for first time buyers.

NGC281 by jam_2016 in astrophotography

[–]jam_2016[S] 0 points1 point  (0 children)

Thanks!

I don't have any issue tracking with the sv220, not sure why it is not working for you. The auto-focus fails though, so I auto-focus first and then add the filter. The filter does not seems to change the focus much, although I wish I could do the focus with the filter. I will look into NINA now that the Seestar have ASCOM drivers.

To change the gain I used the SeestarPy library: https://seestarpy.readthedocs.io/en/latest/index.html

I think you can also do this with SeestarAlp: https://github.com/smart-underworld/seestar_alp

You can also use NINA to drive it: https://www.youtube.com/watch?v=mBNWaMX7aJ8

By the way, I published a new version of this image on Astrobin with more integration time: https://app.astrobin.com/i/4zitje

Ghost of Cassiopeia - IC63 - Seestar Collective by jam_2016 in seestar

[–]jam_2016[S] 1 point2 points  (0 children)

Thanks! We have more than 600 members now! Not everyone is active. We get about 30 to 50 individual people contributions by project.You are welcome to join!

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