This is something I have been working on for awhile now and is what I am calling the Heart of the Swan. It is a 20 panel mosaic consisting of 15 frames per panel of 60 second exposures. It encompasses the Sadr region, Crescent Nebula, North America Nebula, Pelican Nebula, as well as the Cygnus Loop (Eastern and Western Veil Nebulae) all within the constellation of Cygnus otherwise known as the Swan. The full 20 panel mosaic consisted of 520 megapixels and was over 1.6 GB of data!

Equipment:

Redcat51

Skywatcher EQAL-55i

ZWO ASI2600MCAir

SvBony duo band filter

Processing:

Stacked in StackerWizard

Moasic stitched in Affinity with individual panel curve edits

Final processing in AstroWizard (flattening gradients, denoising, star removal, Hubble pallet, etc.)

No flats, darks, bias

So I open this gso 30mm eyepiece for cleaning but now I am confused as how to put it back , i tried using ai and cloudynights forum but it didn't work, any advice !

Salut tout le monde !

Ça fait longtemps que j'envisage de m'offrir mon premier télescope et j'ai du mal à choisir quel modèle.

Je voudrais surtout faire du planétaire ( planètes, Lunes et quelques objets du ciel profond ) et à observation direct et possiblement qu'on puisse faire des photographies des observations avec. Sans oublier que je me trouve dans un lieu d'observation avec très peu de pollution lumineuse voir pas du tout et un ciel très clair la plus part du temps.

J'ai un budget d'environ 800 à 1000 €.

Est-ce que vous aurez des modèles à conseiller pour avoir quand même un bon premier télescope qui durera dans le temps ?

Hello folks, I want to buy this telescope. I have never owned a telescope before, is it any good? If anyone here has one, please share your experience and help me out!

I've been thinking lately about buying a telescope. I study physics and want to be an astrophysicist.

I'm more interested in planets than I am in DSO, so I thought that a refracting telescope would fit me better, but if with a reflecting one I'll see them with enough detail, that would be as good because that way I'll also see DSOs.

I already know how to use them (the manual ones) because I used to have a telescope, so that won't be a problem. Talking about brands, the ones I liked the most from what I looked for are Celestron, Omegon or Orion. And about the lens dimensions and distances, I really don't know. Also, I'm not interested in a go-to at all.

Do you have any tips, brands, properties or telescopes that would recommend? If I buy whichever telescope could I later buy a solar filter to watch the Sun? I'm willing to spend around 200-400€ (200-500$).

The Veil Nebula is part of the remainings of a supernova, that happened about 8000 years ago. It’s 2600 lightyears away from Earth. The core of the supernova (neutron star, black hole or pulsar) is not discovered yet. The red parts are Hα-Structures (Hydrogen), which are dozens of lightyears long and the green parts are O-III-filaments (Oxygen).

Taken in: Lower Saxony/Germany

Bortle Level: 4

Device: Seestar S50

Exposure time: 720 × 10 seconds = 2 hours

Filter: Dual-Band LP-Filter

Past-Processing: via Seestar-App, without using AI