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Andreas Fischer

@afischer.bsky.social

770 followers 420 following 420 posts

Astrophotography, Birdwatching, PhD Biology, SciComm 🏳️‍🌈 http://instagram.com/ansefischerbilder

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Andreas Fischer @afischer.bsky.social · 8h

Then it is quite similar since I was shooting with a reducer at f/6.3, but due to the much longer focal length the comet fills a lot of the field of view. I will definitely try without filter next time

Andreas Fischer @afischer.bsky.social · 10h

Thank you, that is good to know, and I will try it without L-Pro filter next time. I just use it every time to reduce the light pollution...

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Andreas Fischer @afischer.bsky.social · 22h

Right, it is quite astonishing that the final proof of that theory came only a few years ago

Andreas Fischer @afischer.bsky.social · 22h

Thank you! To my knowledge the greenish colour comes from dicarbon molecules (C2) that are released when a comet comes closer to the sun. It is not very stable which is the reason why only the coma of a comet is green and not the tail, too

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Andreas Fischer @afischer.bsky.social · 22h

Close to Goslar near the Harz mountains

Andreas Fischer @afischer.bsky.social · 1d

Good luck!🤞🏻

Andreas Fischer @afischer.bsky.social · 1d

That is definitely possible, the comet is bright enough. I took my second image with a Nikon D5600 (ISO1600) and a quite normal lens (f/2.8) together with a non-electric tracker (Omegon MiniTrack LX3) that allowed 10s-subs

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Andreas Fischer @afischer.bsky.social · 1d

Thank you, and clear skies for you very soon!

Andreas Fischer @afischer.bsky.social · 1d

Thank you 😊

Andreas Fischer @afischer.bsky.social · 1d

Thank you, Bernd 😊

Andreas Fischer @afischer.bsky.social · 1d

Comet C/2025 A6 (Lemmon) in the early hours of 3 October, captured through the C8 with an ASI294mc and additionally with a Nikon D5600 and a Tamron 70-200 at a focal length of 130 mm. The #comet was also nice to observe visually and will hopefully brighten significantly. #astrophotography

Komet C/2025 A6 (Lemmon) mit heller grüner Koma und schwächerem Gasschweif, aufgenommen am 3. Oktober durch ein Teleskop Celestron C8. Summenbild aus 90 Einzelaufnahmen mit je 30 Sekunden Belichtung

Komet C/2025 A6 (Lemmon) mit grüner Koma und Schweif, aufgenommen am 3. Oktober mit einer Spiegelreflexkamera bei 130 mm Brennweite. Summenbild aus 160 Einzelaufnahmen mit je 10 Sekunden Belichtung

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Andreas Fischer @afischer.bsky.social · 1d

Den Nebel kannte ich bisher noch nicht, ein tolles Objekt - und ein großartiges Foto!👏🏻

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Reposted by Andreas Fischer

Bernd Flachsbart @bflachsbart.bsky.social · 2d

LBN 437 The Gecko Nebula captured from my dark site in southern France last month 🇫🇷 😊🔭

It was shot on the EdgeHD 8 with Hyperstar for a total integration time of 8 hours in OSC and Mono. The red nebulosity was enhanced with Ha data.

#Astrophotography

@kat-astro-bot.bsky.social‬ what do you see?

The Gecko Nebula LBN 437 is a dark nebula embedded in the red emission nebula SH2-126. It lies at a distance of about 1.200 light years from Earth in the constellation of Lacerta. Its shape resembles a Gecko hence the name 🦎

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Andreas Fischer @afischer.bsky.social · Sep 12

Thank you, Bernd. This was one of my first "more seriously" imaged objects a few years ago, and I haven't been too happy with the result back then. So I definitely had to image it again 😅

Andreas Fischer @afischer.bsky.social · Sep 12

Thank you 😊

Andreas Fischer @afischer.bsky.social · Sep 12

Thank you, Phillip! The camera is a lot of fun, imaging really got a bit easier with it.😊

Andreas Fischer @afischer.bsky.social · Sep 12

The Snowglobe Nebula (NGC6781) is a beautiful and rather bright planetary nebula in the constellation Aquila. It is also visually a nice object. In August, I photographed it with an ASI294mc Pro through my C8 with a total exposure time of 5 hours. #astrophotography
@kat-astro-bot.bsky.social

Foto des Planetarischen Nebels NGC6781 mit seiner sternenreichen Umgebung im Sternbild Adler. Der Nebel erscheint rundlich mit orangerotem Rand und blaugelbem Zentrum. Die Aufnahme entstand durch ein Teleskop Celestron C8 mit einer gekühlten Astrokamera

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Andreas Fischer @afischer.bsky.social · Sep 9

Thank you! 😊

Andreas Fischer @afischer.bsky.social · Sep 8

Same here... When I finally spotted the moon, it was already much higher above the horizon than I expected. First widefield images at f/5 and ISO1600 with 4 s... 🤣

Andreas Fischer @afischer.bsky.social · Sep 8

Great image! I hab no time to prepare the C8, but it is always worth it 👏🏻

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Andreas Fischer @afischer.bsky.social · Sep 8

Thank you!

Andreas Fischer @afischer.bsky.social · Sep 8

Thank you, Bernd! And enjoy your stay in the South 😎

Andreas Fischer @afischer.bsky.social · Sep 8

Oh, what a pity. But not a bad picture 😅

Andreas Fischer @afischer.bsky.social · Sep 8

Thank you!

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Andreas Fischer @afischer.bsky.social · Sep 8

Thank you, Julien! That really was a lucky shot 😄

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