Andreas Fischer
@afischer.bsky.social
Astrophotography, Birdwatching, PhD Biology, SciComm 🏳️🌈
http://instagram.com/ansefischerbilder
http://instagram.com/ansefischerbilder
#Comet C/2025 K1 (ATLAS) showed three clearly recognisable fragments of its nucleus on 22 November, and it appeared brighter than I had expected. Due to its fast movement relative to the stars, I could only take 20-second exposures through the C8 (image is a stack of 100 subs) #astrophotography
November 28, 2025 at 8:23 PM
#Comet C/2025 K1 (ATLAS) showed three clearly recognisable fragments of its nucleus on 22 November, and it appeared brighter than I had expected. Due to its fast movement relative to the stars, I could only take 20-second exposures through the C8 (image is a stack of 100 subs) #astrophotography
Reposted by Andreas Fischer
VdB 14 and VdB 15 captured from my dark site in southern France end of September 🇫🇷 😊🔭
This was shot on the EdgeHD 8 with Hyperstar for a total integration time of about 5.5 hours using an OSC cam with just the UV/IR-Cut filter.
#Astrophotography
@kat-astro-bot.bsky.social what do you see?
This was shot on the EdgeHD 8 with Hyperstar for a total integration time of about 5.5 hours using an OSC cam with just the UV/IR-Cut filter.
#Astrophotography
@kat-astro-bot.bsky.social what do you see?
November 27, 2025 at 6:15 PM
VdB 14 and VdB 15 captured from my dark site in southern France end of September 🇫🇷 😊🔭
This was shot on the EdgeHD 8 with Hyperstar for a total integration time of about 5.5 hours using an OSC cam with just the UV/IR-Cut filter.
#Astrophotography
@kat-astro-bot.bsky.social what do you see?
This was shot on the EdgeHD 8 with Hyperstar for a total integration time of about 5.5 hours using an OSC cam with just the UV/IR-Cut filter.
#Astrophotography
@kat-astro-bot.bsky.social what do you see?
The Pacman Nebula NGC 281 in Cassiopeia had been on my wish list for several years, and now, over the course of 4 nights in September & October, I finally got it. Visually not an easy object due to light pollution, but really fun to photograph (tech. details in image) 🔭
@kat-astro-bot.bsky.social
@kat-astro-bot.bsky.social
November 23, 2025 at 4:19 PM
The Pacman Nebula NGC 281 in Cassiopeia had been on my wish list for several years, and now, over the course of 4 nights in September & October, I finally got it. Visually not an easy object due to light pollution, but really fun to photograph (tech. details in image) 🔭
@kat-astro-bot.bsky.social
@kat-astro-bot.bsky.social
Reposted by Andreas Fischer
WR 134 is a Wolf-Rayet star in the constellation Cygnus, surrounded by a ring nebula created by its extreme stellar wind and radiation. The image was taken in July 2025 over several nights and is composed of 70 photos, each with an exposure time of 600 seconds.
#Astrophotography
#Astrophotography
November 22, 2025 at 9:42 PM
WR 134 is a Wolf-Rayet star in the constellation Cygnus, surrounded by a ring nebula created by its extreme stellar wind and radiation. The image was taken in July 2025 over several nights and is composed of 70 photos, each with an exposure time of 600 seconds.
#Astrophotography
#Astrophotography
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” 🧪🎓🪲🦋🌱
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
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” 🧪🎓🪲🦋🌱
jobs.zalf.de/jobposting/0...
Deadline Dec 10th 2025 ⌛
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 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 🔭
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
@kat-astro-bot.bsky.social
November 6, 2025 at 6:54 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
@kat-astro-bot.bsky.social
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?
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
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?
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?
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
#birds 🦉 #BirdsSeenIn2025
October 29, 2025 at 10:45 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
#birds 🦉 #BirdsSeenIn2025
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?
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
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?
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?
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
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
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
#astrophotography
October 20, 2025 at 7:07 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
#astrophotography
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
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
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?
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
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?
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 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
@kat-astro-bot.bsky.social
September 12, 2025 at 6:41 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
@kat-astro-bot.bsky.social
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
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
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?
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
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?
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?
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
@kat-astro-bot.bsky.social
August 29, 2025 at 6:19 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
@kat-astro-bot.bsky.social
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
#astrophotography @kat-astro-bot.bsky.social
August 16, 2025 at 6:39 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
#astrophotography @kat-astro-bot.bsky.social
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?
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
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?
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?
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
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
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
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
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
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
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
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
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
@kat-astro-bot.bsky.social
June 24, 2025 at 7:22 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
@kat-astro-bot.bsky.social
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
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
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
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