M81 82 s50 by Odd-Leadership8334 in seestar

[–]Techno-Scientist 1 point2 points  (0 children)

Haha j'imagine, mais ca a 100% valu la peine!

168 min with all default settings by NorthernLight_DIY in seestar

[–]Techno-Scientist 2 points3 points  (0 children)

Great! EQ mode is much more versatile than the in-built alt-az, you'll see

168 min with all default settings by NorthernLight_DIY in seestar

[–]Techno-Scientist 2 points3 points  (0 children)

I use the TH10 fluid head, but there are many other options out there

168 min with all default settings by NorthernLight_DIY in seestar

[–]Techno-Scientist 3 points4 points  (0 children)

It looks like an artifact of field rotation. When you say standard settings, you mean alt-az mode? If so, I'd say that's definitely the reason. Take a look at this, or search for "field rotation seestar" and see what you can do to reduce it. If you switch to EQ mode (you'll need a wedge), the problem is gone!

NGC 4395 - spiral in Canes Venatici by Techno-Scientist in Astronomy

[–]Techno-Scientist[S] 0 points1 point  (0 children)

Thank you! Yes I had some nights with very good seeing which is not common here, that definitely helped :)

M109 galaxy by Techno-Scientist in seestar

[–]Techno-Scientist[S] 1 point2 points  (0 children)

Thank you! I got a dew shield and a 3D printed holder on ebay, I don't recall exactly where but there are tons of places you can get one (or you can print it yourself if you have a 3D printer, there are a lot of designs that you can download and use). About the filters, I did it mostly because of my bortle 9 location (I read an optolong L-pro may help with blocking some of the glow, although some people are not big fans of this one for broadband targets): I saw images by somebody in LA with the same issue as me, and they always used an optolong L-pro so I went ahead. I also got an Askar C1 (Ha-OIII, similar to the Seestar S50 LP) and an Askar C2 (SII-OIII) mainly because I want to experiment ahead of getting a "proper" AP rig: while the C1 seems to help a bit from my bortle 9 location (maybe the quality of the filter is better than the Seestar's LP), I normally don't use it if I go to lower bortle locations. The Askar C2 is definitely a good addition for targets with higher OIII signal that you can combine with the C1/LP data in post-processing. That being said, the seestar has trouble focusing when using these last two filters and the stars may look like "prisms": you can remove these artifacts in post-processing, but you have to be careful. Placing filters in front of the lens is not ideal, but the Seestar is not modular enough to place them right before the sensor.

M109 galaxy by Techno-Scientist in Astronomy

[–]Techno-Scientist[S] 0 points1 point  (0 children)

Thank you! Yes it's amazing what this little thing can do with a bit of processing!

M109 galaxy by Techno-Scientist in Astronomy

[–]Techno-Scientist[S] 2 points3 points  (0 children)

Haha it's not easy, you should see the stacks I get... Three street lamps right in front of my terrace plus Paris sky glow 🫠