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This is a busy image. It contains the Christmas Tree Cluster, The Cone Nebula and the Fox Fur Nebula.
Setup :
Imaging telescope : William Optics Redcat 51
Imaging camera : ASI 2600
Mount Equatorial : Warpastron WD 17
Images :
Lights IR cut-off (Infrared block) : 45x 60sec
Lights (filter Multi-Narrowband) : 151 x 300 sec
Total lights integration time : 13:20 hours
Radiation from hot stars off the top of the the cone in this picture illuminates and erodes this giant, gaseous pillar. This is located in the constellation of Monoceros and are approximately 2600 light years from Earth.
Details
M: Avalon Linear Fast Reverse
T: AT8RC CF
C: QSI690-wsg with 3nm Ha filter.
25x1800s in Ha - 12.5 hours in total.
The Cone, Christmas Tree(NGC2264) and Fox Fur Nebulas.
2700 light years away in the constellation of Monoceres
en.wikipedia.org/wiki/Cone_Nebula
en.wikipedia.org/wiki/Fox_Fur_Nebula
en.wikipedia.org/wiki/NGC_2264
Captured 12x2 minute sub exposures through a Baader Luminance filter on my 11" Celestron Edge with Hyperstar. I added this to RGB data from last year, also with the Hyperstar, 15- 1 minute exposures through each filter. All exposures taken with the QHY23M.
A mosaic I’ve been working on for a few weeks, but wanted to shoot now for at least 2 years.
This is a 2 panel mosaic with 4 individual frames - two for Ha and two for RGB. I didn’t get as much data as I’d like, but I’m just happy to have finally shot this region.
The dark nebulae creating the divide between the glowing red of the hydrogen alpha emission nebula and the faint reflection nebula.
Hopefully when I get a chance to shoot under dark skies I can get a lot more detail in the dust lanes and also the reflection nebula. This was shot under Bortle 5 skies with direct sodium vapour street lights in view.
Tech Details below:
- ZWO 533 cooled to -15, gain 100, offset 50
- Canon 70-200 2.8 IS II L with 1.4 III extender @ F5.6
- Astronomik 6nm Ha 2” filter
- ZWO EF filter drawer
- Skywatcher EQ6R Pro unguided
- N.I.N.A for capturing and planning of the mosaic, APP for stacking & processing.
This 2 panel mosaic was easier to produce than expected thanks to NINA’s awesome mosaic planner and super clean GUI. Also the square sensor of the ZWO 533 made it forgiving when coming to framing.
Ha - 7 hours of data comprising of 300s subs
RGB - 4 hours of data comprising of 180s subs
NGC 2264 is combination of the Cone Nebula and the Christmas Tree Cluster in the constellation of Monoceros. The Cone Nebula, named due to its shape, consist of an H II region and a dark absorption nebula. Towards the top of the image is the Fox Fur Nebula (blue and red region). The light from nearby stars reflects on the surrounding dust giving the blue appearance of the reflection nebula. The image consists of 200 min total exposure with a Canon 60Da camera mounted on an Explore Scientific 127mm refractor telescope.
Located in the constellation of Moneceros, this image shows both the Cone Nebula and the Christmas Tree Cluster, located around 2600 light years from earth the Cone Nebula being an emmision Nebula
Image Details:
101x150S in R
101x150S in G
101x150S in B
101x300S in Ha
Total capture time: 21 Hours
Acquisition Dates: Jan. 9, 2019, Jan. 31, 2019, Feb. 3, 2019, Feb. 14, 2019, Feb. 15, 2019, Feb. 23, 2019, Feb. 24, 2019, Feb. 25, 2019, Feb. 26, 2019, Feb. 27, 2019, Feb. 28, 2019, March 24, 2019, March 25, 2019, March 26, 2019, March 28, 2019, March 29, 2019
The NBRGB Script in PixInsight was used to blend the Ha into the RGB Image
101 Darks, Flats and Flat Darks were used in the frame calibration
Equipment Details:
Imaging Camera: Qhyccd 183M Mono ColdMOS Camera at -20C
Imaging Scope: Sky-Watcher Quattro 8" F4 Imaging Newtonian
Guide Camera: Qhyccd QHY5L-II
Guide Scope: Sky-Watcher Finder Scope
Mount: Sky-Watcher EQ8 Pro
Focuser: Primalucelab ROBO Focuser
Filterwheel: Starlight Xpress Ltd 7x36mm EFW
Filters: Baader Planetarium RGB and Ha
Power and USB Control: Pegasus Astro USB Ultimate Hub Pro
Acquisition Software: Main-Sequence Software Inc. Sequence Generator Pro
Processing Software: PixInsight 1.8.6
The Cone Nebula is part of a star-forming region of space, NGC 2264, about 2500 light-years away. Its pillar-like appearance is a perfect example of the shapes that can develop in giant clouds of cold molecular gas and dust, known for creating new stars. This dramatic new view of the nebula was captured with the FOcal Reducer and low dispersion Spectrograph 2 (FORS2) instrument on ESO’s Very Large Telescope (VLT), and released on the occasion of ESO’s 60th anniversary.
Credit: ESO
This colour image of the region known as NGC 2264 — an area of sky that includes the sparkling blue baubles of the Christmas Tree star cluster and the Cone Nebula — was created from data taken through four different filters (B, V, R and H-alpha) with the Wide Field Imager at ESO's La Silla Observatory, 2400 m high in the Atacama Desert of Chile in the foothills of the Andes. The image shows a region of space about 30 light-years across. This image is available as a mounted image in the ESOshop. #L
Reprocessed the data I took earlier this month. I left the data in it's original field of view, rather than a crop as in my previous image: flic.kr/p/pTYxYr
LUM 17x60
RGB 15x60/each
Celestron EdgeHD+ HyperStar
QHY23M
I've had this data for a while, but I kept thinking I'd replace the luminance channel with better stars (apparently I guided in some trailing for that set) but it's too late in the year, and I'm not disciplined enough to wait a year I'll just have to try again from scratch next year. :)
- MASPhotography Getty Images Gallery
Gear:
- ASI 1600MM-C
- ZWO EFW Filter Wheel
- Astrodon LRGB Gen2 E-Series Tru-Balance Filters
- Astrodon Ha 3nm 36 mm round filter
- Canon 400 mm f/2.8 IS
- Orion HDX 110 (EQ8) Mount
- QHY 5L-II guidecamera
- Orion ST-80 guidescope
- QHY Polemaster
Software:
-PHD2
-Sequence Generator Pro
-Platesolve 2
-Stellarium
-pixinsight
L: 23 - 60 s lights @ gain 139, -25 c
R: 25 - 60 s lights @ gain 139, -25 c
G: 23 - 60 s lights @ gain 139, -25 c
B: 33 - 60 s lights @ gain 139, -20 c
Ha: 78 - 180 s lights @ gain 300, -25 c
20 flats per filter
master darks from 30 frames
Superbias from 300 frames in Pixinsight
The region of the Cone Nebula (NGC 22264) and Hubble's Variable Nebula in the constellation Monoceros.
16 scatti da 8 minuti a 800 ISO. Strumenti: Canon Eos 350D; Schmidt-Newton Meade 203, focale 812, 7 dark, 25 flat. Località: Mastro (Mercato Saraceno - FC). Data: 21/02/2009
This is the Cone Nebula and Christmas Tree Cluster (on its side guys) in Monoceros, and is a pig to process.
Clear last night, so managed another session on this, plus (yes, plus!) a session on the Veil, which I'm trying to forget. This is just over 5 hours of 5 minute subs. I'll leave it alone now until next Christmas, which will be upon us in the blink of an eye!
Taken from Savannah Skies Observatory using an SBIG STL-11000 camera and Takahashi BRC 250 telescope on a Software Bisque PME Mount.
I thought I was done with the Lagoon, but I couldn't help adding some SII to the previous image(seen below)
The darker dust lanes are more evident,stars tighter & this image isn't as harsh as the first. Someday I'll figure this out!
R=Ha 5x300 5x600 3x900 iso 800 Canon T3(modified) with Astronomik Ha clip-in filter
B=OIII 4x600 iso 800 Canon T3i with Astronomik OIII clip-in filter
G=SII 5x600 iso 800 Canon T3(modified) with Astronomik SII clip-in filter
Orion ED102T CF Triplet Apochromatic Refractor Telescope. OIII
Orion ST-80T "guide scope"-Ha & SII
Orion Sirius German-equatorial Computerized Goto Mount
Images aquired using APT
Guided with Starshoot Autoguider and 50mm guide scope
Budget software processing:(I should just get photoshop!)
Aquired with APT www.ideiki.com/astro/
Pre-process and demosaic with Nebulosity www.stark-labs.com/
Scaling and stretch using FITS Liberator www.spacetelescope.org/projects/fits_liberator/
Reduced noise and converted to BMP using Paint.net
Aligned and scaled manually with GIMP
RGB combine with StarTools startools.org/drupal/
Post-process with StarTools, GIMP & Windows Live Photo
www.sites.google.com/site/astrochuck123
*****Check out my "terrestrial" pictures on:
Hydrogen-alpha emissions were rich in the area. Oblique straight fine dark filaments looked to be connecting two faint hydrogen-alpha emission areas near the center of the frame.
Equipment: Sigma 28mmF1.4 "Art," Dual Narrowband Filter IDAS NB12, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 6 times x 1,800 seconds, 3 x 240 sec, and 5 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.
Field around the variable star R Monocerotis and the famous Hubble Variable Nebula (small in white). Surrounded by the Monocerotis I molecular complex, formed by emission, dark and reflection nebulae.
Almost in the center, NGC 2264 with the famous Cone Nebula and Fox Fur. The entire region is in the middle of the Milky Way and is home to ongoing star formation with several hot young stars in the Mon OB1 association. Around the Cone alone, there are dozens of YSO and T Tauri variables.
The blue reflection nebula envelops the open cluster Collinder 95.
The image is a mosaic obtained by placing two panels side by side shot in tandem with 300mm. Processed with Luminar 4, exclusively for color and contrast tuning and control.
NGC 2264 includes the cone nebula (on top) and the Christmas Tree Cluster, a star cluster that resembles a Christmas Tree with its triangular shape. In the middle is the Fox Fur Nebula. I cropped it like this because I think the whole thing looks like a Christmas Tree with an angel on top . Merry Christmas!
A total of 3.8 hours of LRGB and Hydrogen-alpha data. Taken with a Ceravolo300mm telescope and CCD camera.
Tthis is the Christmas Tree Cluster and Cone Nebula in the Constellation of Monoceros and is about 2600 light years from earth.
The image consists of:
8x600S frames in R, G and B respectively
21x600S frames in Luminance
18x1200S 3nm HA Frames from Adam Shewan
25 Darks
25 Flats for each filter
The data was gathered on the following dates
16th January 2016
2nd, 3rd, 4th, 8th, 10th, 11th, 14th February 2016
11th March 2016
Equipment Used:
Mount: Sky-Watcher EQ8 Pro
Telescope: Celestron Telescopes C80ED
Imaging CameraCamera: Atik Cameras 383L+ Mono CCD Cooled to -20C
Guide Camera: Qhyccd QHY5L-II
Filter Wheel: Starlight Xpress Ltd 7x36mm EFW
Off Axis Guider: Teleskop-Service Ransburg TS9-OAG
Imaging Software: Main Sequence Software Sequence Generator Pro
Dark/Flat Processing: Stark-Labs Nebulosity 3.0
Stacking: Maxim DL
Post Processing: CS5, Noise Ninja, HLVG
Equipment: Askar FMA180pro and EOS 6D-SP3, modified by Seo San on Takahashi EM-200FG-Temma2Z equatorial mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 16 times x 900 seconds, 6 x 240 sec, and 8 x 60 seconds at ISO 1,600 and f/4.5
site: 1,467m above sea level at lat. 35 55 54 North and long. 138 24 25 East near Volcano Yatsugatake 東沢大橋展望台駐車場. Ambient temperature was around -7.0 degrees Celsius or 19 degrees Fahrenheit. Wind was mild. Atmospheric turbulence was bad, and guide error RMS was 1.33". Sky Quality Meter indicated 20.77 at the night.
The Cone Nebula (NGC 2264) region contains an open star cluster known as the Christmas Tree Cluster, as it forms a sparkling triangular shape that makes it look rather like a festive fir. The Cone Nebula is a dark nebula located 2,500 lightyears away in the Monoceros constellation. The nebula is 7 lightyears long and is packed full of dense gas and dust - the ingredients necessary for star formation - making it a perfect stellar factory. This tempestuous deep-sky region contains scorching hot young stars that are eroding and carving out the dark nebula, also emitting blasts of powerful ultraviolet light that can be seen illuminating the edges of the dense cosmic cloud.
The Cone Nebula is an H II region in the constellation of Monoceros. The nebula is located about 2,700 light-years away from Earth. The Cone Nebula forms part of the nebulosity surrounding the Christmas Tree Cluster. The designation of NGC 2264 in the New General Catalogue refers to both objects and not the nebula alone. The cone's shape comes from a dark absorption nebula consisting of cold molecular hydrogen and dust in front of a faint emission nebula containing hydrogen ionized by S Monocerotis, the brightest star of NGC 2264. The faint nebula is approximately seven light-years long.
Date: 22/3/15 Oxfordshire, UK
3x1800s Ha luminance in false colour.
1.5 hours total exposure.
Equipment:
T: Takahashi FSQ106ED
C: QSI683ws Mono CCD, Astronomik Filters (6nm Ha)
M: Celestron Advanced Vx
G: QHY5-II
Acquisition and Processing:
PHD2, Sequence Generator Pro, CCDStack, Photoshop CS6
A total rework of my old data from 2018
Wide field view of some nearby cosmic gems - Cone Nebula, Fox Fur, Snowflake Nebula, Christmas Tree Star Cluster and variable nebula NGC 2261, NGC 2259 open star cluster - as imaged by me on December 14 at Negev Desert.
The Christmas Tree Cluster is a young open cluster located in the constellation Monoceros. It is part of the NGC 2264 region, along with the Cone Nebula and the Fox Fur Nebula, and belongs to a loose association of very young stars located in the Orion Arm of the Milky Way.
The Cone Nebula (seen as just one small feature of this large image) is a giant pillar of gas and dust, which was named for its conical shape, which is a result of a dark nebula absorbing the light of an emission nebula that lies behind it. The Cone Nebula resembles the better known Pillars of Creation, a star forming region made famous by the Hubble image in 1995, located in the Eagle Nebula (M16). Pillar structures like these, formed of cold gas, are common in large star forming regions and believed to be incubators for very young stars. The Cone Nebula was discovered by the German-British astronomer William Herschel on December 26, 1785, almost two years after he had discovered the Christmas Tree Cluster.
The Fox Fur Nebula is an H II region, lies at an approximate distance of 2,700 light years from Earth. It was named the Fox Fur because of its appearance. The texture and color of the nebula resemble the head of a red fox stole. The Fox Fur Nebula contains enormous quantities of interstellar dust and gas, which are illuminated by the massive young stars that are being formed within the nebula’s thick clouds. The nebula’s red glow is a result of hydrogen gas being stimulated to emit its own light by the strong ultraviolet radiation from the massive, young, hot blue stars in the cluster. The nebula’s blue areas are composed mainly of clouds of dust that reflect the blue light of the young stars.
The NGC 2261, or Hubble’s Variable Nebula is a bipolar nebula about 3 light years across, illuminated by the variable star R Monocerotis. Its name comes from the fact that, like the central star, the nebula varies in brightness.
HaRGB processing in PixInsight and Photoshop CC.
QHY367c/FSQ 130ED/Mach1 CP4
Dec. 14, 2018
RGB:91x180s, Ha:15x180s
Description text: www.constellation-guide.com
This area is an emission nebulae with a small area showing reflection nebula near the bright central stars of which S Monocerotis is the brightest. The blue reflection nebula area is called the Snow Flake nebula. The Cone nebula is the dark nebula towards the top left with the Christmas Tree area in diagonal toward the right bottom corner. The Fox Fur nebula is underneath the central bright stars and it almost looks as the trunk of the Christmas Tree. NGC2264 is approximately 2,600 light years away with a magnitude of 3.9.
Taken at Lee, IL on 20130902
Type: HaRGB
Frames: HaRGB 7x300:5x300:5x300:5x360
Hardware:
Main scope: Orion EON APO 120mm
Guiding Scope: Astro Tech AT72ED
CCD: QHY9M with filter wheel with LRGB Ha
Orion Atlas mount
Other Filters: Orion Glow Filter
Imaging Applications:
Acquiring: Nebulosity Ver. 3.0.2
Guiding: PHD Ver. 1.11.3
Processing Applications: CCD Stack and Photoshop
Comments: Clearing skies after 9:30pm with good transparency, not the darkest night. Frost was an issue after 1:00am. Lowest Temp 27F.
Each of the 178 monochrome “Light “ frames is calibrated by various subtraction and division methods using Bias Dark & Flat Frame images. Bias data is a camera “signature” comprised of the average of 30 frames of the shortest exposure the camera can take while exposed to zero light. Many of the 16 million pixels perform differently and a predictive pattern of this can be derived and eliminated from Light Frames. A Dark frame also has the lens cap on and zero light leakage but is matched exactly to the light frames in exposure time, gain and temperature. Dozens of these provide the average noise for, say a five minute exposure. Flat Frames are critical to decent images and the most exasperating to perfect. They are images of a perfectly evenly illuminated color balanced field such as a perfectly clear eastern sky near sunset or an LED panel properly diffused. I stretch a pristine white tee shirt over the telescope objective and snap 30 exposures thru each filter. Flat Frames record the donut shaped halos of dust on any of the dozen surfaces in the optical path. They also record any vignetting that exists in almost every optical system. While the stacking of images is ideal for eliminating random noise as it boosts weak signal it tends to multiply anomalies like vignettes, dust donuts and camera sensor flaws, so calibration before any other processing is paramount.
Edinburgh, Canon EOS 600Dα with light pollution filter, Ikharos ED refractor D = 80 mm f/5.6, 84 exposures of 90 s each at 800 ISO, tracking only. Bayer averaged; logarithmic stretch. Also has NGC2261 at bottom right and NGC2259 on right margin toward the top.
Yellow laser beams encroached from Cerro Paranal Observatory.
Equipment: Sigma 28mmF1.4 "Art" and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 11 times x 900 seconds, 3 x 240 sec, 19 x 60 sec, and 5 x 15 seconds at ISO 1,600 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.
Never bothered to upload my Ha Starless image that I use for my luminance before, so this is a first....
For details and infomation see the Full colour version.
Colors got rich and creamy with and without narrowband filter. This frame was composed of good data taken during 6 nights. I have excluded all data containing satellites, aircrafts, or blur.
There look to be many straight dark filaments east to west or vice versa divergent toward west or from orion toward Eridanus almost all over the area. North is up, and east is to the left on the frame.
"Kompaneets model fitting of the Orion-Eridanus superbubble II: Thinking outside of Barnard's Loop" by Pon A et al 2018:
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter or IDAS Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Fujifilm X-T10, XF18-55mm F2.8-4.0 @ F4 and 18mm, ISO 1600, 8 x 300 sec (40 min total), tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in GIMP, taken October 17.
April 19 update: Increased brightness and contrast, increased color saturation, and reduced stars (GIMP). Reducing stars accentuates the nebulousity.
The Cone Nebula (NGC 2264) region contains an open star cluster known as the Christmas Tree Cluster, as it forms a sparkling triangular shape that makes it look rather like a festive fir. The Cone Nebula is a dark nebula located 2,500 lightyears away in the Monoceros constellation. The nebula is 7 lightyears long and is packed full of dense gas and dust - the ingredients necessary for star formation - making it a perfect stellar factory. This tempestuous deep-sky region contains scorching hot young stars that are eroding and carving out the dark nebula, also emitting blasts of powerful ultraviolet light that can be seen illuminating the edges of the dense cosmic cloud.
Edited European Southern Observatory/Digitized Sky Survey wide-field image of the Cone Nebula.
Original caption: This image from the Digitized Sky Survey (DSS) shows the region of the sky around the Cone Nebula. The nebulous area at the centre of the image is NGC 2264, an area of the sky that includes the Christmas Tree star cluster and the Cone Nebula below it (at the very centre of the frame).
Equipment: Askar FMA180pro and Canon EOS R6-SP5, modified by Seo San and Askar FMA180pro, IDAS NB12, Dual Narrowband Filter and Canon EOS 6D-SP3, modified by Seo san on Takahashi EM-200FG-Temma2Z equatorial mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 5 times x 1,800 seconds, 5 x 900sec, 8 x 240 sec, and 1 x 60 seconds at ISO 6,400 and f/4.5 with EOS R6 and 16 times x 900 seconds, 6 x 240 sec, and 8 x 60 seconds at ISO 1,600 and f/4.5 with EOS 6D
site: 1,467m above sea level at lat. 35 55 54 North and long. 138 24 25 East near Volcano Yatsugatake 東沢大橋展望台駐車場. Ambient temperature was around -7.0 degrees Celsius or 19 degrees Fahrenheit. Wind was mild. Atmospheric turbulence was bad, and guide error RMS was 1.33". Sky Quality Meter indicated 20.77 at the night.
This large area of the sky is dominated by a large structure whose texture earns the nickname Fox Fur Nebula. There are several smaller more well-known objects in this area, including the Cone Nebula near the bottom left, the Christmas Tree Cluster (upside-down, with the cone as its tip), LBN 899 in the upper right corner that is amidst an inky dark nebula. The Christmas Tree Cluster is a beautiful cluster in almost any amateur telescope, and some of the nebulosity can be seen in dark skies. Despite being very bright in this image's H-Alpha light, the Cone Nebula is a very difficult target visually even with a large telescope.
Takahashi Sky 90 at f/4.5
SBIG STL-4020M (self-guided)
Takahashi EM-200
Hutech LPS Filter
Ha: 4:40 (20 minute subexposures)
R:36, G:36, B:36 (4 minute subexposures)
Processed in Maxim/DL and Photoshop
Noel Carboni's Astronomy Tools Actions
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
"Kompaneets model fitting of the Orion-Eridanus superbubble II: Thinking outside of Barnard's Loop" by Pon A et al 2018:
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Another DSLR/CCD Hybrid. Captured Ha last evening, and will have no chance for RGB anytime soon so I created a "hybrid", using DSLR subs from 1 year ago
DSLR frames:
15x600 LRGB taken with Canon T3i & Orion ST-80
CCD frames:
5x1200 Ha taken with QHY9M & Orion ED102T CF
We can see nebulae clearer than before. Whitish reflection nebula, Witch Head Nebula got far clearer in full length near the center.
Strait dark filaments got less visible on this version. It means that we could recognize them with existence of small stars.
In general, we can recognize something with absence of something. For example, our retinal cells, more especially cone cells have almost no sensibility at wavelength of hydrogen-alpha light, but we can feel existence of the vast hydrogen-alpha emission, Gum nebula as area of fewer stars as below:
Gum Nebula with Sigma 35mmF1.4 December 2014 Colorless Version: www.flickr.com/photos/hiroc/16311565540
We could not recognize fine dark filaments on this starless version, which was clearly visible before starless conversion as below.
Orion and Surroundings HII OIII Enhanced December 2025:
www.flickr.com/photos/hiroc/54330118548
*We may be able to detect those faint and fine dark filaments as less star areas after mapping of star population density with fine tiles.*
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
Another re-process. This one is from 2009. I had a smaller and less vibrant version here on Flickr, but was never happy with it,
so deleted it today and started over.
NGC 2264 Cone Nebula and Christmas Tree Cluster captured with Apogee Alta U16M camera and Takahashi FSQ-106ED telescope. Captured on January 31, 2009 from Comanche Spring Astronomy Campus in Texas.
I had the RGB data for this image sitting around since January 2012. It didn't matter how I approached it, I coiuld never get the color right. But now with the ability to shoot narrrowband, I grabbed a bunch of H-alpha data the other night (first sesson of 2021). Mixing that in with the original data finally gave me a result I felt was worth uploading.
All data taken with a Celestron Edge HD 925 with HyperStar. The RGB data was taken under dark skies with an Atik 314L+ - it looks like I got 17 frames of 2-3 min exposures from at least two different sessions. I got the Hα data from my light polluted backyard with an Atik 414-EX and Atik filter. Preprocessing was in Nebulosity, while registration, stacking, channel combination, and initial processing was in PixInsight. Final touches took place in Photoshop.
This is the nebula-rich region in Monoceros the Unicorn, containing the bright Rosette Nebula, NGC 2237, below the fainter and larger complex of nebulosity, NGC 2264, which contains the small (on this scale) Cone Nebula.
The blue reflection nebula to the right is IC 2169. The main area of dense dark nebula above it is Barnard 37-9. The yellow star cluster embedded in the large nebula is Trumpler 5.
Below the Rosette is the trio of Sharpless nebulas, from top to bottom: Sh2-280, Sh2-282 and Sh2-284. Above Sh2-282 is the star cluster Collinder 110.
This is a stack of 16 x 2 minute exposures with the Canon RF135mm lens at f/2 and on the Canon Ra at ISO 800, tracked but not guided on the Astro-Physics AP400 mount. From the Warrumbungles Mountain Motel near Coonabarabran, NSW, Australia, March 2024.
Hydrogen-alpha emissions were rich in the area. Oblique straight fine dark filaments looked to be connecting two faint hydrogen-alpha emission areas near the center of the frame.
Equipment: Sigma 28mmF1.4 "Art," Dual Narrowband Filter IDAS NB12, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 6 times x 1,800 seconds, 3 x 240 sec, and 5 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.78 at the night.
Colors got rich and creamy with and without narrowband filter. This frame was composed of good data taken during 6 nights. I have excluded all data containing satellites, aircrafts, or blur.
There look to be many straight dark filaments east to west or vice versa divergent toward west or from orion toward Eridanus almost all over the area. North is up, and east is to the left on the frame.
"Kompaneets model fitting of the Orion-Eridanus superbubble II: Thinking outside of Barnard's Loop" by Pon A et al 2018:
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter or IDAS Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5 with NB12 Filter and 18 times x 900 seconds, 10 x 240 sec, and 17 x 60 seconds at ISO 1,600 and f/3.5 with Clear Filter
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
A very seasonal image of mine
A Christmas Tree Cluster and the Cone Nebula.
This is a small part of the large mosaic, it can be seen in my blog:
www.astroanarchy.blogspot.fi/2012/12/christmas-tree-clust...
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Eridanus Loop is a SuperNova Remnant. Barnard's Loop is said to be formed by two SuperNovae as below.
"A 3D View of Orion. I. Barnard's Loop" by Foley M et al 2023:
iopscience.iop.org/article/10.3847/1538-4357/acb5f4/pdf
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.
This is R-channel of the original frame taken with dual narrowband filter. The dual narrowband filter IDAS NB12 has relatively wide band width 12nm in half value width, and it is suitable even for super wide lenses. Starnet++v2.0 made the frame clearer.
Equipment: Sigma 28mmF1.4 "Art" , IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5 Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 120MM-mini, and PHD2 Guiding
Exposure: 12 times x 1,800 seconds, 10 x 900 sec, 11 x 240 sec, and 20 x 60 seconds at ISO 6,400 and f/3.5
site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.69 at the night.