OpenTube

How much exposure is enough for ANDROMEDA?

Jakob Sahner

95,614 views

The testing phase of my new Sigma 300mm f2.8 lens continues, and this time I pointed it at the Andromeda Galaxy!

I wanted to see how Andromeda looks with this lens and how the image improves as I add more and more exposure time. For the final result, I compared my newly captured dataset at different integration times: a single exposure, a 15-minute stack, a 1-hour stack, and a 4-hour stack. After that, I also compared this result with my big telescope setup, where I collected over 270 hours of exposure time!

Astrobin links:
My 270hr shot of Andromeda:
https://app.astrobin.com/i/jcvohl
Deep Sky Collective's shot:
https://app.astrobin.com/u/Marcel_Dre...

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20 Comments

@aeroscantsee1665 10 months ago

O3 emission arc was discovered in some time like 2022. so it's very recent. kinda nuts.

@Maxwellthecatisverycool 6 months ago

The 15 aec exposure WAS ALREADY INSANE tbh

@HolyFriesBag 8 months ago

ich liebe es eif dass man deutsche direkt hört wenn sie englisch reden 😂

@IlyaScorched 9 months ago

6:39 falling star above your head!

@preslavnedyalkov5432 9 months ago

Fun game - drink every time you hear the word "Yeah"

@lynndoggo 10 months ago

Ja 🗣🗣

love this video

@DavidInfinityOfficial 4 weeks ago

What is the bortle level you shot at for the 273hr total integration time? I’m wondering how long I would need to shoot from my bortle level.

@CoolSkeleton95-123 10 months ago

Me trying to find the Orion Nebula in every shot

@illsdom6055 10 months ago

Oh man, the quality of your content has really reached a very high level! The time has come to turn this into a full time job. You have a talent for this stuff....don’t miss the opportunity, because it could bring you great satisfaction ❤

@glenhughes8013 3 months ago

Amazing photo at the end! Actually played a drinking game watching this. Got alcoholic poisoning now.

@TrungNguyen-uf8cv 8 months ago

No amount is enough I think, I've never seen the faint swirl at the core as seen in the latest astro photo of the year

@IrfanBayuaji 10 months ago

How you keep the consistency of this quality is insane, man! Not only your visual artwork is great, but the amount of effort you put in every hunting session's vlogs are quite made me exhausting just by imagining it! 🤣 Keep it rockin', Jakob!

@Aerostar509 10 months ago

On my Zoom lens I put long pieces of glow tape on the focus and zoom rings and labeled them with a black marker to find them in the dark.

@kiwibom1 9 months ago

Your video randomly showed up in my feed clicked on it, the first 1min of it gives me huge Alyn Wallace vibes RIP

@willowail 10 months ago

Great video but the subtitles did you dirty at 3:40😂

@NataliaEriksson 1 month ago

You got very satisfying results with the non astro specialized equipment. Very nice colours and details across the whole image. When it comes to the number of exposures, more doesn’t necessarily mean better in this case. Congratulations😊

@ChrrZ 10 months ago (edited)

thank you for this great comparision, the last image with the o3 emission arc blew my mind, i have never seen it before.. wow

@jriceastro 10 months ago

Good stuff man! I love watching you vlogs! 🤩

@therandomeditzofficial 9 months ago

wonderful video, deserves millions of views!

@Wheeljack678 10 months ago

Aah... I really enjoy astro-vlogs like these. Doesn't matter if it's a target many have captured before. It's the "journey" of an image that I find interesting. I've grown into a backyard observatory myself, but excellent vlogs like this one inspire me to dig up my old trusty astro-modded Canon, a startracker, some warm clothing and go outside underneath the stars in a remote location again.
Also, I am really impressed with the star-quality for f/2.8. I had to stop my lenses down to around f/4 in order to not have the stars be elongated.

On a completely different note; isn't it insane that we are still finding new stuff in M31 - arguably one of the MOST imaged objects since the 1880s? Astronomy and astrophotography is awesome.