Friday, January 24, 2025
Star Pointers
I have made an alternative composition out of my photo of Cederblad 214. There are several pillar like structures in the nebula and they all are pointing to the open cluster NGC 7822 due to solar wind, a radiation pressure. Original photo can be seen here with technical details: https://astroanarchy.blogspot.com/2025/01/cederbald-214.html
CEDERBLAD 214 AND THE STAR POINTERS
Click for a large image, 1600 x 2300 pixels
Cosmic fingers are pointing up to the stars
Wednesday, January 22, 2025
My photos and the Culture capital of Europe 2026
My hometown Oulu, Finland will be the Cultural Capital of Europe at 2026, I'll be one of the artists selected to the program
Info about the happening
Friday, January 17, 2025
Cederbald 214
This winter season I have shot some of my old targets again with my new imaging system. It takes some time to get familiar with a new system and get everything out of them technically.
I have been really happy with the optical quality of my 142 Celestron EDGE telescope, specially with the secondary mirror focuser does the trick, no more mirror flops since main mirror is locked down all the time. Mesu mount Mark II has served well as a very solid imaging platform.
CEDERBLAD 214 AND THE STAR POINTERS
Click for a large image, 1400 x 2000 pixels
Cosmic fingers are pointing up to the stars
A FULL FRAME PHOTO OF CEDERBLAD 214
Click for a full size, 2000x2000 pixels
Click for a full size, 2000x2000 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
sulfur=red, hydrogen=green and oxygen=blue
Structure Study of the Cederblad 214
All pillar like formations are pointing to a source of ionization, the open cluster NGC 7822. There are some dense areas in a gas able to resist the radiation pressure from young star cluster. Those dense areas, at a tip of the pillars, are also potential places for the formations of the new stars.
INFO
Source: NASA APOD
Towering pillars of cold gas and dark dust adorn the center star forming region of Sharpless 171. An open cluster of stars is forming there from the gas in cold molecular clouds. As energetic light emitted by young massive stars boils away the opaque dust, the region fragments and picturesque pillars of the remnant gas and dust form and slowly evaporate. The energetic light also illuminates the surrounding hydrogen gas, causing it to glow as an emission nebula. Pictured above is the active central region of the Sharpless 171 greater emission nebula. Sharpless 171 incorporates NGC 7822 and the active region Cederblad 214, much of which is imaged above. The area above spans about 20 light years, lies about 3,000 light years away, and can be seen with a telescope toward the northern constellation of the King of Ethiopia (Cepheus).
Cederblad 214 in a large context
Technical details
Processing workflow
Image acquisition, MaximDL v5.07.
Stacked and calibrated in CCDStack2.
Deconvolution with a CCDStack2 Positive Constraint, 27 iterations, added at 50% weight
Color combine in PS CS3
Levels and curves in PS CS3.
Imaging optics,
Celestron EDGE 14" with 0.7 Focal reducer
Mount,
MesuMount Mark II
Cameras,
Imaging camera Apogee Alta U9000M and Apogee seven slot filter wheel
Guider camera, Lodestar x 2 and SXV-AO Active Optics @ 5hz
filters,
Astrodon 5nm H-alpha, 3nm S-II and 3nm O-III
Total exposure time 9h
H-alpha, 15 x 1200 x, binned 1x1 = 5h
O-III,9x 1200 s, binned 2x2 = 2h
S-II, 9 x 1200 s. binned 2x2 = 2h
A single calibrated 20 min exposure of H-alpha, Bin 1x1
Click for a full size image.
Wednesday, January 8, 2025
Sharpless 132 as four panel mosaic
I have originally published this four panel mosaic photo back in February 2019. I have added new data to it and generally reprocessed the whole thing, it's funny how much an old guy can learn in few years.
You can see the old version here: https://astroanarchy.blogspot.com/2019/02/sharpless-132-sh2-132.html
It's not bad by any means but new version reveals so much more. The central part of the mosaic is new data from autumn season 2024, it's better processed and has a better overall resolution due to new imaging setup.
High res mosaic image of Sharpless 132
Click for a full size, 2700x2400 pixels
Click for a full size, 2700x2400 pixels
A mapped color image from a light emitted by an ionized elements,
sulfur=red, hydrogen=green and oxygen=blue
sulfur=red, hydrogen=green and oxygen=blue
Sh2-132 in a large context
Please, click for a large image
Technical details
Info about the 2019 version of the four panel mosaic here:
Info about the new 2024 central area image here:
https://astroanarchy.blogspot.com/2024/12/sharpless-132-furious-cosmic-horse-gets.html
https://astroanarchy.blogspot.com/2024/12/sharpless-132-furious-cosmic-horse-gets.html
Total exposure time 27 hours
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