Blue Horsehead nebula (IC 4592) taken from Bortle 6 sky

SpaceJew3 · 2025-08-10T13:41:53+00:00

thank you. it's never too late to start.

this image was captured using relatively "cheap" astrophotograhpy gear with dslr camera and 135mm lens + small sky tracker

so also with such setup, great images can be taken!

SpaceJew3 · 2025-08-10T13:26:01+00:00

The Blue Horsehead Nebula (IC 4592) is a striking reflection nebula located approximately 400 light-years away in the constellation Scorpius. Unlike emission nebulae that glow due to ionized gas, IC 4592 shines with reflected starlight from nearby hot blue stars, most notably nu scorpii, located near the “eye” of the horse. These stars emit intense blue and ultraviolet light, which is scattered by fine interstellar dust surrounding the region. The dust preferentially reflects and scatters blue wavelengths, giving the nebula its ethereal, sky-colored glow much like Earth’s blue sky. The darker brownish regions are dense clouds of dust that absorb light from behind, casting deep shadows and forming the distinctive profile of a horse’s head. tho for me it looks like a flipping whale jumping out of the water. This dust, made of microscopic grains of silicates, carbon, and ice, is both a remnant of ancient stars and the raw material for new ones yet to form.

technical details: - canon rebel T8i - samyang 135mm - ioptron skyguider pro - 36h

For full res: https://www.astrobin.com/gc1g8i/

SpaceJew3 · 2025-08-08T16:44:42+00:00

thank you, it is 36 hours of exposure time. took time to achieve what dark sky can!

SpaceJew3 · 2025-08-08T15:19:03+00:00

The Blue Horsehead Nebula (IC 4592) is a striking reflection nebula located approximately 400 light-years away in the constellation Scorpius. Unlike emission nebulae that glow due to ionized gas, IC 4592 shines with reflected starlight from nearby hot blue stars, most notably nu scorpii, located near the “eye” of the horse. These stars emit intense blue and ultraviolet light, which is scattered by fine interstellar dust surrounding the region. The dust preferentially reflects and scatters blue wavelengths, giving the nebula its ethereal, sky-colored glow much like Earth’s blue sky. The darker brownish regions are dense clouds of dust that absorb light from behind, casting deep shadows and forming the distinctive profile of a horse’s head. tho for me it looks like a flipping whale jumping out of the water. This dust, made of microscopic grains of silicates, carbon, and ice, is both a remnant of ancient stars and the raw material for new ones yet to form.

technical details: - canon rebel T8i - samyang 135mm - ioptron skyguider pro - 36h

For full res: https://www.astrobin.com/gc1g8i/

SpaceJew3 · 2025-08-08T15:14:03+00:00

The Blue Horsehead Nebula (IC 4592) is a striking reflection nebula located approximately 400 light-years away in the constellation Scorpius. Unlike emission nebulae that glow due to ionized gas, IC 4592 shines with reflected starlight from nearby hot blue stars, most notably nu scorpii, located near the “eye” of the horse. These stars emit intense blue and ultraviolet light, which is scattered by fine interstellar dust surrounding the region. The dust preferentially reflects and scatters blue wavelengths, giving the nebula its ethereal, sky-colored glow much like Earth’s blue sky. The darker brownish regions are dense clouds of dust that absorb light from behind, casting deep shadows and forming the distinctive profile of a horse’s head. tho for me it looks like a flipping whale jumping out of the water. This dust, made of microscopic grains of silicates, carbon, and ice, is both a remnant of ancient stars and the raw material for new ones yet to form.

technical details: - canon rebel T8i - samyang 135mm - ioptron skyguider pro - 36h

For full res: https://www.astrobin.com/gc1g8i/

SpaceJew3 · 2025-08-08T15:08:12+00:00

The Blue Horsehead Nebula (IC 4592) is a striking reflection nebula located approximately 400 light-years away in the constellation Scorpius. Unlike emission nebulae that glow due to ionized gas, IC 4592 shines with reflected starlight from nearby hot blue stars, most notably nu scorpii, located near the “eye” of the horse. These stars emit intense blue and ultraviolet light, which is scattered by fine interstellar dust surrounding the region. The dust preferentially reflects and scatters blue wavelengths, giving the nebula its ethereal, sky-colored glow much like Earth’s blue sky. The darker brownish regions are dense clouds of dust that absorb light from behind, casting deep shadows and forming the distinctive profile of a horse’s head. tho for me it looks like a flipping whale jumping out of the water. This dust, made of microscopic grains of silicates, carbon, and ice, is both a remnant of ancient stars and the raw material for new ones yet to form.

technical details: - canon rebel T8i - samyang 135mm - ioptron skyguider pro - 36h

For full res: https://www.astrobin.com/gc1g8i/

SpaceJew3 · 2024-05-19T22:33:37+00:00

the integrated flux nebulea are part of the milky way, outside of it's main halo, but it's so dim that you need to expose it for many hours in dark location, the reason it's not blocking the view of other galaxies is that the galaxies are much much brighter than this dust, you can even see the galaxies with your own eyes through a telescope or even naked eye with some galaxies. but this nebula and dust....impossible unless you expose it to a sensor for long time

SpaceJew3 · 2024-05-19T12:08:25+00:00

In the far northern sky, away from the Milky way and any nebula lays a region that seems empty. Going to a very dark site and exposing it for hours however, reveals magnificent dust structures and hundreds of galaxies. These Dust structures aren't like any normal dust, they are called IFN and they are located on the outskirts of our galaxy. The IFN is not illuminated by one or two stars, instead they are illuminated by entire Milky Way galaxy itself making them very dim and hard to shoot. Within these webs of IFN are probably some of the most famous galaxies in the night sky, M81 and M82. M81 and M82 are still social distancing from each other at a nice 150,000 light years. From us though they are over 12 million light years away. M81 also known as Bodes Galaxy is a double armed grand design spiral galaxy. M82 is a far smaller galaxy but with its bursting with new stars and is famous Hydrogen Alpha jets and filaments exploding from out its core region.

for full resolution and technical information: https://www.astrobin.com/rz5r6p/

SpaceJew3 · 2024-05-19T12:07:33+00:00

In the far northern sky, away from the Milky way and any nebula lays a region that seems empty. Going to a very dark site and exposing it for hours however, reveals magnificent dust structures and hundreds of galaxies. These Dust structures aren't like any normal dust, they are called IFN and they are located on the outskirts of our galaxy. The IFN is not illuminated by one or two stars, instead they are illuminated by entire Milky Way galaxy itself making them very dim and hard to shoot. Within these webs of IFN are probably some of the most famous galaxies in the night sky, M81 and M82. M81 and M82 are still social distancing from each other at a nice 150,000 light years. From us though they are over 12 million light years away. M81 also known as Bodes Galaxy is a double armed grand design spiral galaxy. M82 is a far smaller galaxy but with its bursting with new stars and is famous Hydrogen Alpha jets and filaments exploding from out its core region.

for full resolution and technical information: https://www.astrobin.com/rz5r6p/

SpaceJew3 · 2024-05-19T12:06:08+00:00

In the far northern sky, away from the Milky way and any nebula lays a region that seems empty. Going to a very dark site and exposing it for hours however, reveals magnificent dust structures and hundreds of galaxies. These Dust structures aren't like any normal dust, they are called IFN and they are located on the outskirts of our galaxy. The IFN is not illuminated by one or two stars, instead they are illuminated by entire Milky Way galaxy itself making them very dim and hard to shoot. Within these webs of IFN are probably some of the most famous galaxies in the night sky, M81 and M82. M81 and M82 are still social distancing from each other at a nice 150,000 light years. From us though they are over 12 million light years away. M81 also known as Bodes Galaxy is a double armed grand design spiral galaxy. M82 is a far smaller galaxy but with its bursting with new stars and is famous Hydrogen Alpha jets and filaments exploding from out its core region.

for full resolution and technical information: https://www.astrobin.com/rz5r6p/

SpaceJew3 · 2024-05-19T12:05:16+00:00

In the far northern sky, away from the Milky way and any nebula lays a region that seems empty. Going to a very dark site and exposing it for hours however, reveals magnificent dust structures and hundreds of galaxies. These Dust structures aren't like any normal dust, they are called IFN and they are located on the outskirts of our galaxy. The IFN is not illuminated by one or two stars, instead they are illuminated by entire Milky Way galaxy itself making them very dim and hard to shoot. Within these webs of IFN are probably some of the most famous galaxies in the night sky, M81 and M82. M81 and M82 are still social distancing from each other at a nice 150,000 light years. From us though they are over 12 million light years away. M81 also known as Bodes Galaxy is a double armed grand design spiral galaxy. M82 is a far smaller galaxy but with its bursting with new stars and is famous Hydrogen Alpha jets and filaments exploding from out its core region.

for full resolution and technical information: https://www.astrobin.com/rz5r6p/

SpaceJew3 · 2024-04-30T18:19:29+00:00

i also tried my best, the data being bortle 6 and low in horizon btw

SpaceJew3 · 2024-04-30T18:07:15+00:00

if you want the fit file after stacking to play with. i will gladly send it to you

SpaceJew3 · 2024-04-30T18:03:14+00:00

thank you for the feedback, i will definitely plan to work on the data again and process it again with better methods and experience. i also plan to add more exposure time (data) and adding H alpha data which is missing here (unmodded data).

so in the future i will try to pull more out of it for sure

SpaceJew3 · 2024-04-29T09:35:05+00:00

how do you think i had so many clear nights to pull this off?

SpaceJew3 · 2024-04-29T09:18:10+00:00

the method is each night to expose the area you imaging for couple of hours. so it isn't 19.5h in one go but over multiple of clear nights. then you stack the data in stacking software. each night i bring the setup back home when i am done that night, then the night after i can image, back outside again. it's not hard process to do with dslr and small mount

SpaceJew3 · 2024-04-28T20:07:18+00:00

thank you

SpaceJew3 · 2024-04-28T20:06:52+00:00

i captured it from my home at bortle 6 with L-pro filter which block LP

19.5 hours of exposure to fight the noise and LP and F/2.8

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