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IC 426 - reflection nebula in Orion

Details
22 January 2025

IC 426 final logo webThis small reflection nebula is located about 1 degree north of Epsilon Orionis (the middle star of Orion's belt). It has the designation IC 426 and is also cataloged as LBN 921.
There is not much information written about this nebula; it is a reflection nebula which means that the nebula is visible because of the reflection of the light of nearby stars.
Because it is a very dim object I scheduled 35 missions through the Slooh telescop Chili Two of which I had to discard the results of 7 missions because of too much moonlight and light clouds. The resulting 112 images represent a total exposure time of a bit more than 51 minutes. The resulting FITS-files are combined and processed in PixInsight. The final image is cropped to get the nebula more in the center of the picture.
Probably this picture would benefit from a lot more missions.

Click on the image to get a larger version of it.

 

 

NGC 1333 through Canary Two Wide Field

Details
02 January 2025

NGC 1333 final2 logo webNGC 1333 is a reflection nebula located in the northern constellation Perseus, positioned next to the southern constellation border with Taurus and Aries. It was first discovered by German astronomer Eduard Schönfeld in 1855. This nebula is also called the Embryo nebula.
It is associated with a dark cloud L1450 (Barnard 205). Estimates of the distance to this nebula range from 980–1,140 light years. This nebula is in the western part of the Perseus molecular cloud and is a young region of very active star formation, being one of the best-studied objects of its type.
I scheduled 30 missions through the Slooh telescope Canary Two Wide Field with a total exposure of 55 minutes. The resulting FITS-files were combined and processed in PixInsight. It was a difficult object to process because of the very bad condition of the sensor of this telescope and because of the fact that the nebulosity is very dim. I also cropped the the image.

Click on the image to get a larger version

 

 

NGC 1760, 1761, 1763, 1769 and NGC 1773

Details
27 October 2024

NGC1769 final logo webNGC 1760 is an emission nebula, or actually a complex of emission nebulae connected by glowing filaments over 1000 light-years across and located about 160,000 light-years away within the Large Magellanic Cloud (LMC) – a satellite galaxy to our Milky Way, in the constellation of Dorado.

It is one of the most active star formation regions in the nearby Universe.
It is a cocoon shaped nebula that consists of different components. At the center lies a large cavity with a bright blue star cluster NGC 1761.
Three oval shaped patches are situated to the left and above the central star cluster.
The one above the central star cluster is called NGC 1763; this is the largest of these three patches.
To the left lies NGC 1769 and the one above and further to the left has the designation NGC 1773. All of these also contain star clusters.

This image is the result of 30 missions through the Chili two telescope. Each mission consists of 50 second L-exposure and 20 second exposures for each of the color filters (R, G and B); in total 55 minutes exposure. Processed in PixInsight.

Click on the image to get a larger version of the picture

NGC 1788 - reflection nebula in Orion

Details
26 October 2024

NGC1788 logo webThis nebula, known as NGC 1788 was discovered by William Herschel on 1 February 1786 using his 18.7 inch reflector. He cataloged it as V 32 and noted: "Considerably bright, very large, much diffused and vanishing. Near and south following bright star." Dreyer added the nebula as NGC 1788 to his New General Catalogue published in 1888.
NGC 1788 is a starforming region with reflection nebula surrounded by a glowing red ring of hydrogen gas which is faintly visible in the picture. The stars inside the nebula are only about a million years old, which is very young compared to most stars
The reflection nebula is reflecting light from in particular a tenth magnitude star, located in the northwestern sector of the nebula. To the south, NGC 1788 is crossed by a dark band, known as LDN 1616.
The distance of the nebulous complex is estimated at 1470 light-years from us.
Sometimes this nebula is called "Cosmic Bat Nebula" or just "Bat Nebula".

This image is the result of 19 missions through the Australia One telescope. Each mission takes a 50 second picture for the L-channel and 20 second pictures for each of the R, G and B channels resulting in a total exposure of about 35 minutes. The image files are processed in PixInsight.

Click on the image to get a larger version

NGC 1935 and other emission nebulae in the LMC

Details
25 December 2024

NGC 1935 final logo webNGC 1935 is an emission nebula in the LMC in the constellation Dorado. But that is only part of what is visible in this picture. The picture is taken through the Chili two telescope pointing to NGC 1935. The small bright white patch to the right of the dark center is NGC 1935; above it and a bit to the right is another white patch with the designation NGC 1934 and below it is a larger white patch called NGC 1936. These three emission nebulae are on the right hand side of the large nebulosity. At the top of the large nebulosity are two 'ears'; the right one contains NGC 1929 and the left one contains NGC 1937.
Below the large nebulosity and somewhat to the left is another nebulosity with the designation IC 2118.
So you get a lot of extras when pointing to NGC 1935.
I scheduled 25 missions to this object with a total exposure time of close to 46 minutes. The 100 images are combined and processed in PixInsight.

Click on the image to see a larger version of it.

 

 

More Articles …

  1. NGC 1965 in the Large Magellanic Cloud
  2. NGC 2020 and surrounding objects in the LMC
  3. NGC 2048 - another part of the Large Magellanic Cloud
  4. NGC 2080 and surrounding objects in the LMC
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