Andreas Fischer
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afischer.bsky.social
Andreas Fischer
@afischer.bsky.social
Astrophotography, Birdwatching, PhD Biology, SciComm 🏳️‍🌈
http://instagram.com/ansefischerbilder
Reposted by Andreas Fischer
Open Position at @zalf.bsky.social

Tenure Track Scientist (m/f/d) on “Biodiversity in Agricultural Landscapes” 🧪🎓🪲🦋🌱

jobs.zalf.de/jobposting/0...

Deadline Dec 10th 2025 ⌛
Tenure Track Scientist (m/f/d) on “Biodiversity in Agricultural Landscapes”
This Classic Tenure Track Call invites applications of scientists with profound expertise in biodiversity and its spatiotemporal dynamics and responses to external drivers, preferably land use and man...
jobs.zalf.de
November 16, 2025 at 1:37 PM
The two brightest comets currently visible in the sky, C/2025 R2 (SWAN) and C/2025 A6 (Lemmon), captured last weekend with an ASI294mc Pro on my C8. #Comet Lemmon is already bidding farewell to the northern hemisphere, so I had to catch it in the near-horizon haze. #astrophotography 🔭
November 14, 2025 at 8:52 PM
The planetary nebula Sh2-188 in the constellation Cassiopeia is also known as Shrimp Nebula due to its shape. I took this image over five nights in August using a C8, an ASI294mc Pro camera and a total exposure time of around 13 hours (details in image) #Astrophotography
@kat-astro-bot.bsky.social
November 6, 2025 at 6:54 PM
Reposted by Andreas Fischer
Wolf’s Cave Nebula (LDN 1217 / vdB 152) captured on two nights a couple of weeks ago 😊🔭

This was shot on the EdgeHD 8 with Hyperstar for a total integration time of about 8.5 hours. I combined OSC and mono Ha data for this image.

#Astrophotography

@kat-astro-bot.bsky.social‬ what do you see?
November 5, 2025 at 7:01 PM
At the end of September, we went #birdwatching in Donana National Park in Spain. Here is a small selection of the birds I photographed there: one of many Hoopoes, a very curious Short-toed Snake Eagle and a Yellow-crowned Weaver.
#birds 🦉 #BirdsSeenIn2025
October 29, 2025 at 10:45 PM
Reposted by Andreas Fischer
LDN 1165 captured on two nights a couple of weeks ago 😊🔭

This was shot on the EdgeHD 8 with Hyperstar for a total integration time of 7 hours in OSC and Mono. I used the mono Ha data to enhance the red and the luminance details.

#Astrophotography

@kat-astro-bot.bsky.social‬ what do you see?
October 26, 2025 at 2:21 PM
Comet C/2025 A6 (Lemmon) taken on 19 October from the roof of our garage at 135 mm focal length (stack of 192 10s-subs). Despite thin clouds and streetlights between the comet and me, the gas & dust tails are clearly visible in different colors. Brings back memories of Hale-Bopp #astrophotography
October 22, 2025 at 7:27 PM
That was an exciting evening on 18 October: 2 cameras, 2 comets and, to top it off, some #auroraborealis: C/2025 R2 (SWAN) was close to the bright nebulae M16 & M17 and the open clusters NGC6645 & M25 (1. image). Comet C/2025 A6 (Lemmon) tried to hide behind clouds but failed (2.)😉
#astrophotography
October 20, 2025 at 7:07 PM
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
October 11, 2025 at 5:17 PM
Reposted by Andreas Fischer
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?
October 10, 2025 at 4:45 PM
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
September 12, 2025 at 6:41 PM
Some images of yesterday's #LunarEclipse, taken with a Nikon D5600 and a Tamron 150-600 (at 600 mm) at 20:47, 21:22, 21:31 and 21:49 p.m., respectively. It took the #moon quite a while to emerge above the dust, but then the eclipse was great to observe. #astrophotography
September 8, 2025 at 7:43 PM
Reposted by Andreas Fischer
WR 134 captured from my patio on 14 nights in July & August 😊🔭

This nebula around the star WR 134 was shot on the EdgeHD 8 for a total integration time of 58 h in mono with Ha and OIII narrowband filters and merged with RGB stars.

#Astrophotography

@kat-astro-bot.bsky.social‬ what do you see?
September 1, 2025 at 4:37 PM
The Bubble Nebula (NGC 7635) in Cassiopeia was my first target with the new ASI294mc Pro camera. In total, I accumulated a good 8.5 hours of exposure time over 8 nights from our terrasse and am really happy with the result (techn. details in picture) #astrophotography
@kat-astro-bot.bsky.social
August 29, 2025 at 6:19 PM
The spiral galaxy NGC 6946 is known as the Fireworks Galaxy due to its high rate of supernovae. I captured it through my C8 over 6 nights in June & July – actually just as a test of the astro camera that @astrophil.de lent me (technical details in image)
#astrophotography @kat-astro-bot.bsky.social
August 16, 2025 at 6:39 PM
Reposted by Andreas Fischer
Abell 39 captured from my patio on seven nights in June 😊🔭

This bubble like planetary nebula was shot on the EdgeHD 8 for a total integration time of 27 hours in mono using Ha and OIII narrowband filters and RGB filters for the stars.

#Astrophotography

@kat-astro-bot.bsky.social‬ what do you see?
July 18, 2025 at 6:33 PM
Over the course of 7 nights in May and June, I took test images of the Hercules cluster M13 with the ASI183mc Pro camera, which was kindly provided by @astrophil.de. Also tested different filters, and I'm quite happy with the final stack of all frames #astrophotography @kat-astro-bot.bsky.social
July 18, 2025 at 7:57 PM
Reposted by Andreas Fischer
NGC 6543 The Cat’s Eye Nebula captured from my patio on seven nights 😊🔭

This was shot on the EdgeHD 8 for a total integration time of about 27 hours in mono. It’s a combination of Ha and OIII narrowband data with LRGB data for the core and the stars.

#Astrophotography

@kat-astro-bot.bsky.social
July 13, 2025 at 6:29 PM
It's Milky Way season. So I went up on our garage roof when the street lights were finally switched off and took some photos. This one is a composite of 120 s for the landscape and 15 x 8 s for the sky (Nikon D5600 + Sigma 18-35 at 18 mm, f/2.8, ISO1600). #astrophotography
July 6, 2025 at 6:55 PM
In 10 nights in April and May I photographed the Antennae galaxies in the constellation Corvus. The exposure time was just a good 9 hours, as the galaxies only appear briefly above the Harz mountains. At least their "antennae" are faintly visible... #astrophotography
@kat-astro-bot.bsky.social
June 24, 2025 at 7:22 PM
Reposted by Andreas Fischer
M97 The Owl Nebula captured from my patio on several nights in May 😊🔭

It was shot on the EdgeHD 8 for a total integration time of about 22 hours in mono with Ha and OIII narrowband filters and combined with OSC data for the stars.

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

#Astrophotography
June 8, 2025 at 7:00 PM
The pretty spiral galaxy NGC5033 is located in the constellation Canes Venatici and is also called Waterbug Galaxy. I collected 11.5 h of exposure time in 7 nights. The photo shows the expanded spiral arms, but visually I could only see the bright centre #astrophotography @kat-astro-bot.bsky.social
May 23, 2025 at 5:29 PM
Reposted by Andreas Fischer
M94 The Croc’s Eye Galaxy captured from my dark site in southern France on two nights in early May 😊🔭🇫🇷

This was shot on the EdgeHD 8 with Hyperstar at f/2 for a total integration time of 5 hours using a QHY183C cam without any filter.

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

#Astrophotography
May 20, 2025 at 7:54 PM
What a moonrise last night with a spectacular pollen corona! Let's see how it will look tonight ... #moon #astrophotography 🔭
May 13, 2025 at 7:44 PM
The Diamond Ring Nebula (Abell 33) is a beautiful planetary nebula in the constellation Hydra that I captured with my C8 from our backyard during six nights in March. The total integration time was 10 h using the IDAS NB12 filter. #astrophotography 🔭
@kat-astro-bot.bsky.social
May 12, 2025 at 6:17 PM