🪼The Jellyfish Nebula

This thing is a bit tricky to get from down here, but the weather cooperated between xmas and new year and I was able to snap a few nights worth of data of this scene in Gemini.

On the right, a relatively bright supernova remnant makes a jellyfish shape. That thing exploded probably some tens of thousands of years ago.

To its left is a region of gas that is *forming* stars. It is much fainter and doesn’t have a popular name, its is simply known by a catalog number - Sharpless 249. Its shape most reminds me of one of the dancing raw chickens in the Sledgehammer video.

This is about 7 hours of narrowband Ha/[OIII] data with a William Optics RedCat 61, Altair Astro 6nm duo band filter and ASI294MC Pro camera.

#astrophotography #space #Astrodon

While I am at it: the Société Française d'Astronomie et d'Astrophysique @sf2a - French society of professional astronomers - joined almost a year ago. And while "42 followers" definitely *is* a nice number, there are even nicer numbers they should be able to achieve, n'est-ce pas?

👀 @GermanAstroSoc @EuroGeosciences @DPGPhysik @europeanphysicalsociety

#astrodon #astronomie #astronomy #astrophysics #France #sf2a

While I am at it: the Société Française d'Astronomie et d'Astrophysique @sf2a - French society of professional astronomers - joined almost a year ago. And while "42 followers" definitely *is* a nice number, there are even nicer numbers they should be able to achieve, n'est-ce pas?

👀 @GermanAstroSoc @EuroGeosciences @DPGPhysik @europeanphysicalsociety

#astrodon #astronomie #astronomy #astrophysics #France #sf2a

🪼The Jellyfish Nebula

This thing is a bit tricky to get from down here, but the weather cooperated between xmas and new year and I was able to snap a few nights worth of data of this scene in Gemini.

On the right, a relatively bright supernova remnant makes a jellyfish shape. That thing exploded probably some tens of thousands of years ago.

To its left is a region of gas that is *forming* stars. It is much fainter and doesn’t have a popular name, its is simply known by a catalog number - Sharpless 249. Its shape most reminds me of one of the dancing raw chickens in the Sledgehammer video.

This is about 7 hours of narrowband Ha/[OIII] data with a William Optics RedCat 61, Altair Astro 6nm duo band filter and ASI294MC Pro camera.

#astrophotography #space #Astrodon

RE: https://academiccloud.social/@sonjaschuh01/115215776866979688

Für all, die #neuhier sind und meinen, dass sie nicht genug Astronomie in ihrer Timeline vorfinden, gibt es übrigens dieses Starterpack. Hab ich das so #dutgemacht?

https://fedidevs.com/s/NjA2/

#Astrodon #Astronomie #Astronomy #Starterpack #didit #FediFollows #Science #Wisskomm

RE: https://academiccloud.social/@sonjaschuh01/115215776866979688

Für all, die #neuhier sind und meinen, dass sie nicht genug Astronomie in ihrer Timeline vorfinden, gibt es übrigens dieses Starterpack. Hab ich das so #dutgemacht?

https://fedidevs.com/s/NjA2/

#Astrodon #Astronomie #Astronomy #Starterpack #didit #FediFollows #Science #Wisskomm

It’s not much to look at, only four minutes of data and with a tree in the way, but it’s mine.

Interstellar #comet 3I Atlas.

#astrophotography #space #astrodon

It’s not much to look at, only four minutes of data and with a tree in the way, but it’s mine.

Interstellar #comet 3I Atlas.

#astrophotography #space #astrodon

The Rosette Nebula 🌹

You guessed it, it’s a gassy region forming new stars! I used my new narrowband filters to image this, which gave me data in red, deep red, and cyan.

That meant “interpreting” the data into something that looks pretty, by mapping them onto red, green and blue in different ways.

There are two attempts. The first one using more or less the pallette used for Hubble images, the other a classic “SHO” mapping for sulphur, hydrogen, oxygen onto red, green and blue.

I didn’t get much sulphur data because clouds, so the red channel is very weak in that one. The other one uses a formula to mix sulphur and hydrogen data for the red, so it gets brighter and yellower.

#astrophotography #space #astrodon

The Rosette Nebula 🌹

You guessed it, it’s a gassy region forming new stars! I used my new narrowband filters to image this, which gave me data in red, deep red, and cyan.

That meant “interpreting” the data into something that looks pretty, by mapping them onto red, green and blue in different ways.

There are two attempts. The first one using more or less the pallette used for Hubble images, the other a classic “SHO” mapping for sulphur, hydrogen, oxygen onto red, green and blue.

I didn’t get much sulphur data because clouds, so the red channel is very weak in that one. The other one uses a formula to mix sulphur and hydrogen data for the red, so it gets brighter and yellower.

#astrophotography #space #astrodon

Dancing Lights 💃🏻🪩🕺🏻

I managed to snap about two hours of 10 second images from a dry lake last night, between 10pm and midnight.

This is all of them compressed into a time lapse, with the stars rotating around the south celestial pole.

Other than the horizon being weirdly bright and there being a *hint* of a vertical pillar from time to time, this was pretty much not naked eye visible.

Nikon D750, ISO8000, Nikkor 14-24 F2.8 lens at 24mm f/4, 553 x 10s.

#AuroraAustralis #astrophotography #astrodon #aurora

Dancing Lights 💃🏻🪩🕺🏻

I managed to snap about two hours of 10 second images from a dry lake last night, between 10pm and midnight.

This is all of them compressed into a time lapse, with the stars rotating around the south celestial pole.

Other than the horizon being weirdly bright and there being a *hint* of a vertical pillar from time to time, this was pretty much not naked eye visible.

Nikon D750, ISO8000, Nikkor 14-24 F2.8 lens at 24mm f/4, 553 x 10s.

#AuroraAustralis #astrophotography #astrodon #aurora

Growing Green

We chose a safe, off-road parking spot to observe the #aurora. As I began to photograph, a car approached from behind us and lit the tree beside me.
The result was almost the same shape as the developing aurora.

The yellowish glow on the horizon is a group of farms beyond the hill.

September 27th 2025, #Iceland.

Canon Powershot G3 X, f/2.8, ISO-800, 15 sec. exposure.

@photography

#AuroraTuesday #NorthernLights #AuroraBorealis #LandscapePhotography #AstroPhotography #Astrodon

Growing Green

We chose a safe, off-road parking spot to observe the #aurora. As I began to photograph, a car approached from behind us and lit the tree beside me.
The result was almost the same shape as the developing aurora.

The yellowish glow on the horizon is a group of farms beyond the hill.

September 27th 2025, #Iceland.

Canon Powershot G3 X, f/2.8, ISO-800, 15 sec. exposure.

@photography

#AuroraTuesday #NorthernLights #AuroraBorealis #LandscapePhotography #AstroPhotography #Astrodon

Áróra

In Norse mythology the #aurora were the armour and weapons of the Valkyrie. The word is derived from Old Norse Valkyrja ("Chooser of the Slain") who guide the souls of the battle-slain to Odin's hall Valhalla.

In Finland, a fox was thought to have created the aurora, its bushy tail throwing sparks into the sky.

Scottish legend refers to the lights as “Merry Dancers” engaged in battle.

@photography

#FolkloreThursday #Iceland #NorthernLights #AuroraBorealis #AstroPhotography #Astrodon

On the occasion of the International Annual Meeting of the German Astronomical Society, where a joint effort is happening right now to connect existing #fediverse accounts and to invite more members of the community to participate, here is a starter pack of accounts with a relation to Astronomy in Germany:

https://fedidevs.com/s/NjA2/

Are you all already following each other? Did you just get started and want to ask to be included, too? Would you like to suggest further additions to the starter pack? Are you discovering accounts in the list whose introductions should get boosted around a lot more? Are astronomy aficionados out there finding this list useful?

#Starterpack #FediFollows #Astronomy #Astrodon #AG2025Goerlitz #GermanAstroSoc #Space

In The Beginning

A Bortle 3¹ area, and we're aurora hunting. Thinking that we weren't going to be lucky because the KP forecast was very low, we decided to take some landscape shots of the small farms and the stunning starry sky.

What we didn't know was that Lady Aurora had begun, very faintly, to smile on us.
Then the show began.

Þengilhöfði in northern #Iceland.

¹ https://en.wikipedia.org/wiki/Bortle_scale

@span photography

#AuroraTuesday#NorthernLights#AuroraBorealis#AstroPhotography#Astrodon#AtOptics