View allAll Photos Tagged cocoonnebula
Locations: Deep Sky West, Rowe, New Mexico, United States
ASTRO-PHYSICS
175 mm f/8 Starfire EDF (175EDF):
Integration: 11h
Locations: Deep Sky West, Rowe, New Mexico, United States
ASTRO-PHYSICS
175 mm f/8 Starfire EDF (175EDF):
Locations: Deep Sky West, Rowe, New Mexico, United States
ASTRO-PHYSICS
175 mm f/8 Starfire EDF (175EDF):
Integration: 11h
L: 9 x 600 sec
R: 7 x 600 sec
G: 7 x 600 sec
B: 13 x 600 sec
Ha: 10 x 1800 sec
IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula in the constellation of Cygnus. The distance is about 4,000 light years away. When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
This is an image taken with the QSI690 that I was hoping to add to, but it won't be happening, so I decided to post!
Details:
M: Avalon Linear Fast Reverse
T: Takahashi FSQ85 0.73x
C: QSI690-wsg with Baader RGB filters and Astrodon 3nm Ha.
34x1800s Ha
50x300s for R, G and B
Totalling 29.5 hours.
LHa-RGB
Bin1x1 CLS:2h20, Ha:3h12 ; Bin2x2 R:30mn, G:25mn & B:28mm exposure time
200/1000 mm Newtonian telescope
Camera ZWO ASI1600MM Pro
Guidage PHD2 avec AOG et ASI1174MM mini
Preprocessing with SIRIL
Image processing with Photoshop
Final touch with Lightroom
IC 5146, the Cocoon Nebula
I started another mosaic project and fell short due to weather. I decided to give "panel#19" a go at processing with Pixinsight. Completely pre-processed with PI, however I'm still learning and experimenting with various techniques of post-processing, So we will call this a practice image :)
Captured 8/4 & 8/8
L-R-G-B filtered image
10x120sec L (planned on 20, but clouds intervened)
12x120sec each RGB
QHY23M, cooled to -20C
11" Celestron EdgeHD w/Hyperstar
IC5146, aka the Cocoon Nebula is a reflection/emission nebula in the constellation of Cygnus the Swan. It is approximately 4000 light-years away
My second pass at this object. Last year I approached this mostly using narrowband filters. I used some of that data again here but really couldn't find much additional detail in it. This is shot relatively short using R,G,B filters with a black and white camera and many more exposures in just black and white... to get as much of the faint outlying structure as possible. I am lucky to live in a near-rural area and apparently it's dark enough to catch details in these dark parts of the nebula and bring them to life.
"The Cocoon Nebula, also known as IC 5146, is a relatively well-known nebula located in the constellation Cygnus, about 3,000 light-years from Earth. It is a combination of both an emission and reflection nebula, surrounded by a dark molecular cloud. Here’s an overview of its main characteristics:
Structure and Composition:
The Cocoon Nebula is a star-forming region that contains ionization, dust absorption and reflection. It appears as a small, bright core (the "cocoon") surrounded by the dark lanes of dust.
In the central region, new stars are forming, and their intense radiation ionizes the surrounding hydrogen gas, causing it to glow with the characteristic red color of an emission nebula.
At the same time, the dust around the young stars reflects their light, making parts of the nebula visible as a reflection nebula.
Star Formation:
The Cocoon Nebula contains a young star cluster known as Collinder 470, which is embedded in the nebula.
The star at the center of the nebula is particularly young and massive. Its energy drives the emission that we see from the surrounding gas. This star, along with others in the nebula, is in the early stages of stellar evolution.
Dark Nebula (Barnard 168):
A key feature of the Cocoon Nebula is its association with a long, dark cloud known as Barnard 168, which forms a "trail" leading away from the nebula.
This dark nebula absorbs background light and obscures stars behind it, creating a stark contrast with the glowing core of the Cocoon Nebula.
Size and Distance:
The Cocoon Nebula spans about 12 light-years across, with the surrounding dark nebula stretching even further.
It is located about 3,000 light-years away from Earth, making it a relatively close target for amateur astronomers with telescopes.
Visibility:
Although the Cocoon Nebula is relatively faint, it can be observed with medium to large telescopes, particularly under dark skies. It is located near the star Pi Cygni in the constellation Cygnus."
Askar 120APO: 840mm f/7
ZWO ASI533MM Mono Camera at -20C
6x Ha,Sii,Oiii @10m
20x R,G,B @3m
195x Lum @3m
total integration: 19 hours
Guided on ZWO AM5
Processed with PixInsight, Ps
Retake on this famous nebula within Cygnus. The image shows the brighter emission/reflection Cocoon nebula surrounded by Barnard 168 a dark nebula which also trails off towards the top of the frame.
Some 3-4000 light years distant the Cocoon nebula is believed to be an area of active star formation.
Canon 1000D/Skywatcher ED80mm refractor.
OBJECT: IC 5146, The Cocoon Nebula, Constellation Cygnus (Swan), apparent magnitude 7,2 apparent diameter 12 arcmin, FOV 1 x 0,7 arcdeg, cropped 16,6 x.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor 500/5,6 PF, no filter, tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding, dew heater.
ACQUISITION: August 1st, 2020, Struz, CZ, Exposure 300s, f 5,6, ISO 400, Light 13x, Dark 5x, Bias 5x, Flat 10x. Total exposure time 65 min. Night, breeze, wind 17 C.
STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralization, light pollution removal, calibrate background and stars colors), Adobe Photoshop CC 2020 (stretching, black and white point settings, star reduction, enhance DSO, noise reduction, contrast setting, sharpening and cropping).
IC 5146 a.k.a. Cocoon Nebula
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IC5146 is a emission/reflection nebula in interaction with a star cluster. The cosmic dust floating around the nebula and the ionized gas by nearby stars form ideal conditions for the formation of new stars, making the Cocoon Nebula a true cosmic nursery.
As general information, IC 5146 has a diameter of about 15 light years and can be seen in the constellation Cygnus, being at a distance of about 4000 light years from Earth.
#luciannicu
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Equipment and settings:
Mount: Skywatcher Eq6 R
Telescope: Orion Optics VX6
Camera: ASI 533MC Pro
Filter: Baader UV/IR cut
Total integration: 4h.
120 light frames x 120 sec, + calibration frames.
Stacking in Deep Sky Stacker.
Edit in Pixinsight
Location: My Bortle 6+ backyard.
The Cocoon Nebula (IC 5146) in the constellation Cygnus. This is a reflection/emission nebula, note the dark trail behind it, a dark nebula called Barnard 168, it forms the appearance of a trail behind the Cocoon.
Image taken with a 98% illuminated moon.
Tech Specs: Sky-Watcher Esprit 120ED, ZWO ASI071mc-Pro running at -10C, Sky-Watcher EQ6R-Pro mount, 48 x 300 second exposures (calibrated with darks from the library), 2" Optolong L-eNhance filter, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, controlled with a ZWO ASIAir Pro running v1.5 Beta software, processed in PixInsight. Image date: November 28, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
Milky Way - Canon 60Da, Ultra Wide Angle Canon Lens EF 16 35mm f2.8L II U, Fixed Tripod; F2.8, ISO 12800, exposure time 9 seconds for one shot, total about 20 min.
There are Cygnus, Delphinus, Lyra, Lacerta, Sagitta constellations. Also you can see parts of Cepheus, Equuleus, Pegasus, Draco, Aquila constellations. Program founded about 10000 stars in this photo. Three most bright stars are from the summer triangle – Vega, Deneb, Altair. Visible nebulas are IC 1396 - Elephant's Trunk nebula, NGC 7000 - North America nebula, IC 5070 and IC 5067 - Pelican nebula, IC 1318 - The Gamma Cygni Nebula, IC 5146 - Cocoon Nebula, IC 1311 - Sadr region nebula, Triple cave dark nebula in Aquila, Le Gentil 3 dark nebula in Cygnus, part of the Great Rift, Open clusters M29, NGC6885 and NGC6940, Brocchi's cluster.
Cocoon Nebula IC5146 Caldwell 19
Esprit 100ED
Canon 700d
CGEM DX
ISO800 11x360s (1hr 6mins)
PixInsight
Resolution ............... 1.592 arcsec/px
Rotation ................. 103.508 deg
Reference system ......... ICRS
Observation start time ... 2023-08-20 23:40:03 UTC
Observation end time ..... 2023-08-21 00:51:53 UTC
Focal distance ........... 557.08 mm
Pixel size ............... 4.30 um
Field of view ............ 2d 18' 11.7" x 1d 32' 14.2"
Image center ............. RA: 21 53 33.574 Dec: +47 17 54.12 ex: +0.019102 px ey: +0.006723 px
The Cocoon Nebula (IC 5146, C19) in the constellation Cygnus is a region of star formation accompanied by a trailing cloud of dark dust that obscures a more distant background of Milky Way stars.
Captured under dark skies near Goldendale, WA.
Telescope: William Optics ZenithStar 100mm f/7
Focal Reducer: Astro-Tech 0.8x
Camera: Modified Canon 450D (XSi)
Mount: Astro-Physics Mach1 GTE
Integration: 100 mins (20 x 5 mins)
Software: PixInsight 1.8.8, PaintShop Pro
Exifs
■ Mount: skywatcher neq-6 goto with Rowan modification belt
■ Telescope: skywatcher 200/1000 F/5
■ Autoguiding: Asi 120mm
■ Total exposure: 2H35Min || 31 X 300 seconds
■ Camera: modified canon eos 700d astrodon
■ Filter(s): astronomik CLS ccd eos clip
■ Other optic(s): baader coma corrector
■ Software : Siril / photoshopCC
IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago. The nebula is about 12 arcmins across, which is equivalent to a span of 15 light years. (Wikipedia)
Shot from London on the 19th September 2019
1 Hour Ha (60x60 second subs), 1 hour Oiii (60x60 seconds)
TS65Quad Astrograph & ASI1600MM Pro camera
Ha (Red), Oiii (Green), Oiii (Blue) image
Cocoon Nebula , IC 5146 in the constellation Cygnus
Telescope : GS250RC/TR TS 3"Flattener (2000mm f/8)
Mount : Skywatcher EQ8GOTO
Camera : QHY16200A Astrodon LRGB filters
Luminance 600sec x 18 -5℃
RGB 300sec x 4 (2 binning) -5℃
Image calibration,composite,process : Pixinsight
August 6 2016 22:45~27:15 (JST)
Amagi Kogen,Shizuoka prefecture,Japan (1000m above sea level)
The Cocoon IC5146 in the constellation of Cygnus is floating in its bed of dark dust clouds in a sea of stars. The distance is about 3000 lightyears.
77 x 180 s at ISO 1600
Pentax K3ii and TS 130/910 apo
Astro Pixel Processor and Photoshop CC2018
Revision 08/2019
Now there are some free time and I decided reprocessed my astronomical photographs that I photographed last year.
Explanation: Inside the Cocoon Nebula is a newly developing cluster of stars. Cataloged as IC 5146, the beautiful nebula is nearly 15 light-years wide, located some 4,000 light years away toward the northern constellation Cygnus. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula is likely only a few hundred thousand years old, powering the nebular glow as it clears out a cavity in the molecular cloud's star forming dust and gas. This exceptionally deep color view of the Cocoon Nebula traces tantalizing features within and surrounding the dusty stellar nursery. (text: apod.nasa.gov/apod/ap090305.html )
This picture was photographed August 4-7, 2013 in my Khlepcha observatory, Ukraine.
Equipment: home assembled reflector 10 in., f/3.8
Mount WhiteSwan-180, camera QSI-583wsg, Tevevue Paracorr-2. Off-axis guidecamera QHY5L-II.
LRGB filter set Baader Planetarium.
L=36*450 sec. RGB: 21*600 sec. each channel, all unbinned. Total 15 hours.
Processed Pixinsight 1.8, Fitstacker and Photoshop CS6
Shot from Mt. Pinos, CA on the morning of 2016-07-08. The Cocoon Nebula is an emission nebula in Cygnus. There is a long tail of dark nebulae extending away from it to the west (to the right in this image).
This image is a mosaic of three separate regions. Each panel of the mosaic is a stack of 150s subframes taken with an Edge HD 9.25" at f/2.3 with Hyperstar, and an Atik 314L+ color CCD. Preprocessing done in Nebulosity; stacking, compositing, and processing in PixInsight; some final touches in PS CS 5.1.
ED80 field flattener CLS clip filter and canon 600D. HEQ5 mount. unguided 20 x 2min frames stacked in deep sky stacker.
IC5146 is a reflection/emission nebula in the constellation Cygnus. The cluster in the middle of it, also known as Collinder 470, is a very young cluster of about 100 000 years and its about 4000 lightyears away.
NOTE
Because of the humidity, the secondary mirror of the telescope was completely mist up over the night. And I didnt realize that. This costs me more than half of exposure time for this image :(
IMAGING DATA
15x 360 seconds ISO500
1.5 hours of total exposure time.
EQUIPMENT
Camera: Canon EOS60Da
Telescope: TS ONTC 10" f4.7 Newton
Mount: Skywatcher AZ-EQ6 on tripod
Guiding: Finderscope,
Lacerta MGEN Autoguider
Northfield, OH
Oct 5, 29, 2022
Equipment--
Telescope: Explore Scientific ED 80, field flattener (no reducer), 480mm focal length
Mount: Sky-Watcher EQ6R-Pro
Camera: ZWO ASI204MC-Pro
Guide scope: Williams Optics 50mm guide scope
Guide camera: ZWO ASI120MM-S
Software: NINA, PHD2
Imaging--
Lights: 42x300s
Darks, Flats, DarkFlats, Bias: assorted
Sensor temp: -10.0
Filter: Optolong L-Pro
Sky: Bortle 6 (nominal)
Post processing--
Software: PixInsight, Photoshop
The Cocoon Nebula is a cloud of gas and dust in the constellation of Cygnus, high overhead in summer months for northern-hemisphere observers. The nebula is illuminated by the bright central star visible in this photograph. This star formed from the gravitational collapse of part of this cloud some 100,000 years ago, and now it makes its own stellar nursery visible to us. The nebula shines mostly in the characteristic red light of ionized hydrogen gas, though the fainter outer reaches of the cloud show other colors due to ionization of other elements such as oxygen and sulfur, as well as from reflection of the starlight. Even more fairly visible are clouds and filaments of gas and dust too poorly illuminated to shine, but seen here in silhouette against the backdrop of the brighter parts of the nebula and the background stars of the Milky Way.
Also known as Caldwell 19, Sharpless 2-125, and IC 5146, the Cocoon Nebula is about 4,000 light years from earth.
Taken at Starfront Observatory, Texas. Esprit 120, QHY 268M. CEM70 mount. HaLRGB 19hr 25min integration
-Setup:
Telescope: TS Photoline 80/500 f/6.25 Triplet Super Apo
Mount: Skywatcher H-EQ5 Pro
Camera: Canon EOS 6D Astrodon mod.
-Imaging Data:
23x300" ISO1250
1.92h
IC 5146, also known as Caldwell 19, Sharpless 2-125, and the Cocoon Nebula is a reflection/emission nebula and Caldwell object in the constellation Cygnus. It is about 4,000 light years away, and the central star that lights it formed about 100,000 years ago; the nebula is about 15 light years across.
10h40m total integration (R,G,B,L 27,24,28,49x300s). Alcalalí, Spain 17-11/11/2017.
APM TMB 152 F8 LZOS, 10 Micron GM2000HPS, QSI6120wsg8
HaLRGB 550:160:90:75:75, ASI 1600-Pro Mono Camera. Such a cool region of space, it looks like a tadpole swimming through the stars.
Here is a view of the Cocoon Nebula, IC 5146, located in the constellation Cygnus. It is composed of just a 15-minute of exposure data. The Cocoon Nebula is most often photographed in a wider field of view to include the dark nebula Barnard 168, which gives the appearance of tail behind the Cocoon Nebula.
Tech Specs: Meade LX90 12” telescope, Antares Focal Reducer, and Canon 6D camera. 15-minutes of collected data using 15-second subs at ISO 3200. Imaging date: August 6, 2016.
Cocoon Nebula or IC 5146
Skywatcher 200p on NEQ6 mount, with guiding.
Optolong CLS-CCD filter. ASI294MC Pro at -20C. 32 x 180 second exposures (1 hour 36 minutes) at Gain 121, Offset 30 , 15 dark frames, 15 flat fields, 15 dark flat frames.
12/10/2020. Seeing wasn't ideal.
Inside the Cocoon Nebula is a newly developing cluster of stars. The cosmic Cocoon also features a long trail of obscuring
interstellar dust clouds. The two combined make it one of my favorite objects! Tonight I'll attempt to add Hydrogen Alpha to it. It is also know as IC 5146, and this amazing nebula is approximately 15 light-years wide and located some 4,000 light years
away toward the constellation of the Cygnus the Swan.
#cocoonnebula #ic5146
#astrophotography #astrobackyard #losmandy #losmandygm8 #zwo #asi533mcpro #optolong
Technical Info:
Optics: SGO 6" f/4 Imaging Newtonian @ 610mm FL
Explore Scientific 2" HR Coma Corrector
Camera: ZWO ASI533MC Pro
Filter: 2" Optolong L-Enhance
Mount: Losmandy GM8
Guiding: QHY Mini Guide Scope + PHD2 Software
Acquisition: Sequence Generator Pro
Exposure: Light (Gain 200) - 40 subs @ 240 Seconds (160 Minutes)
Calibration: 50 Bias, 30 Darks, 0 Flats
Processing: Deep Sky Stacker, Adobe Photoshop, Topaz Denoise AI, Astronomy Action Set plug in for PS, Astro Flat Pro plug in for PS
A brief clear spell last night allowed me to target the Cocoon Nebula after my previous failure to acquire it. I grabbed what I could to get an image before the inevitable thin high cloud spread in heralding the arrival of more rain and cutting short my session - what's new!
Usual light pollution seemed worse than normal also!!
The Cocoon Nebula is a reflection/emission nebula in the constellation of Cygnus lying at a distance of some 3-4000 light years. The central star that lights the nebula is believed to be around 100,000 years old.
The nebula itself is around 15 light years in diameter.
Also evident in the image is dark nebula Barnard 168 which not only surrounds the nebula but which forms a striking dark trail westwards from the Cocoon Nebula itself.
Imaged with a SW 80ED and a modified Canon 1000D DSLR, guided.
30x240Sec Subs. calibrated with flats, darks and bias files.
The Cocoon Nebula (IC 5146, Caldwell 19) in the constellation Cygnus. This is a reflection/emission nebula, note the dark trail behind it, a dark nebula called Barnard 168, it forms the appearance of a trail behind the Cocoon. 14 x 60 seconds at ISO 3200 (Canon 6D + 400mm Canon lens), stacked in DSS and processed in Corel Paintshop Pro. Photo taken in Weatherly, PA.
This spectacular object can be observed against a fairly dense star field at the border between the constellations Cygnus and Lacerta. The Cocoon Nebula is composed of both emission and reflection nebulae, meaning that alongside the emitted light of ionized gases, the structure is outlined by dust illuminated by the surrounding stars. During the image processing of the 10-hour-long data, I subtracted only minimally the light from the background stars, which left the dark nebula surrounding the Silk Cocoon Nebula, catalogued as Barnard 168, clearly visible.
3606 x 10 sec, ZWO Seestar S50
Canon 6d astrodon mod, ef 500mm f4, Heq 5 pro, lps-p2
Vorden
11 x 120 sec
66 x 180 sec
60 bias
60 flats
Pixinsight, Adobe Photoshop Elements 13
IC 5146 (the Cocoon Nebula) is a reflection/emission nebula and Caldwell object (19) in Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is ~4,000 ly away, 15 ly in size and the central star that lights it formed about 100,000 years ago. Dark nebula Barnard 168 (B168) is an inseparable part this object, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon. (Ref. Wikipedia). This 8.8hr LRGB image, using the new PI 1.8.5 Photometric Color Calibration, seems to show a lot more reflection (lighter blue) than emission in the bright nebula compared to other renditions. North is to the right.
Collected 8/19/17, 9/15/17 at D.A.R.C. Observatory, Mercey Hot Springs, CA. SQM 21.74, 21.48 (peak, respectively).
Imaging telescope: APM LZOS 130/780 f/6 LW CNC II 130mm APO
Imaging camera: FLI ML16200
Mount: Takahashi EM-200 Temma2
Guiding telescope: Orion Deluxe 50mm MiniGuider
Guiding camera: Orion SSAG
Focal reducer: Riccardi Model 1 1.0x FF
Software: PixInsight 1.8.5, TheSkyX, PS CS6
Filters: Astrodon Gen2E LRGB
Lum 3.8hr (23*10min), RGB 5.0 hr (26*30min) ; Total 8.8 hr.
ic5146LRGBps2DSEcr
ic5146LRGBps6cr
ic5146LRGBps6crX (suppress "reflection" in the star field that was caused by applying ColorSat without a mask on the bkgrd)
ic5146LRGBps6crX1 (starshrink, curves to reduce intensity)
ic5146LRGBps6crX2 (hpf on ic5146, more starshrink)
ic5146LRGBps6crX3122218
ic5146LRGBps6crX3122218-2020.
IIC 5146 is an emission nebula located in the Milky Way in the Cygnus constellation. In its center, a young star born 100 000 years ago exits the neighboring hydrogen gas.
Here the North is to the right. The Cocoon is at the extremity of a dark nebula made of dust which extends to the west (the bottom of the picture).
C11-HD with 0.7 reducer making it F=2016mmm, STXL camera on a Losmandy G11.
Halpha: 7x600s
Red: 6x120s
Green and Blue: 5x120s
All binned 1x1
The red channel is made of the sum of twice the Ha signal added to the red one. The process preserves the color of the stars whilst enhancing much the nebula.
This is a wide-field framing of the dusty region of sky in northern Cygnus containing the small magenta and blue Cocoon Nebula, aka IC 5146, at centre, which appears at the end of a long dark nebula catalogued as Barnard 168, but sometimes called the Cigar Nebula. But the entire field is permeated with yellow-brown dust, as well as diffuse red emission nebulosity, contrasting with the bluer dust-free regions of the Milky Way.
Two open star clusters flank the Cocoon/B168 complex:
-- at lower left is the sparse and large NGC 7209 in Lacerta,,
-- while at upper right is the bright and large Messier 39 open cluster, in Cygnus
The yellow star at lower right is Rho Cygni. The blue star at top is Pi2 Cygni.
The field is 8.2º by 5.5º .
Technical:
This is a stack of 30 x 3-minute exposures with the Founder Optics Draco 62 astrographuic refractor at f/4 with its Reducer/Flattener, and the red-sensitive astro-modified Canon R camera at ISO 800. No filter was used here.
The scope was on the Star Adventurer GTi equatorial mount autoguided with the ASIAir and guidescope. Taken from the Quailway Cottage in southeastern Arizona in October 2024.
Canon 60D modded
70-200mm @200mm
Astrotrac
ISO 3200
35 exposures @ f 4.0 150 seconds
49 darks
8/15/2015
Northern NJ
First light on the cocoon nebula. 400mm looked just too boring, and not close enough to show much of anything, so I stayed with the 200mm view. From Wikipedia:
IC 5146 is a reflection[1]/emission[2] nebula and Caldwell object in the constellation Cygnus. When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
Taken in Ticino, Switzerland
Canon EOS 6D + TS 80/500 Triplet APO, Skywatcher H-EQ5
65*120 sek. ISO 1600
The Cocoon Nebula (IC 5146). At this time of year it's difficult to get enough exposure on an object because the nights are so short. So, it makes sense to add fresh data to old data and increase the exposure time over years. For this image, just over three hours of data was supplemented with shots taken in 2018, resulting in four and a half hours of exposure (which is needed to bring out details on this object). The down side of this system is that the older data is invariably inferior to the newer stuff.
[From Wikipedia] IC 5146 (also Caldwell 19, Sh 2-125, Barnard 168, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is also known as Collinder 470. It shines at magnitude +10.0/+9.3/+7.2. It is located near the naked-eye star Pi Cygni, the open cluster NGC 7209 in Lacerta, and the bright open cluster M39. The cluster is about 4,000 ly away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light-years.
When viewing IC 5146, dark nebula Barnard 168 (B168) is an inseparable part of the experience, forming a dark lane that surrounds the cluster and projects westward forming the appearance of a trail behind the Cocoon.
IC 5146 is a stellar nursery where star-formation is ongoing. Observations by both the Spitzer Space Telescope and the Chandra X-ray Observatory have collectively identified hundreds of young stellar objects. Young stars are seen in both the emission nebula, where gas has been ionized by massive young stars, and in the infrared-dark molecular cloud that forms the "tail". The most-massive stars in the region is BD +46 3474, a star of class B1 that is an estimated 14±4 times the mass of the sun.
22/06/2018
017 x 300-second exposures at Unity Gain (139) cooled to -20°C
030 x dark frames
030 x flat frames
100 x bias frames
Binning 1x1
Integration time = 1 hour and 25 minutes
08/07/2022
037 x 300-second exposures at Unity Gain (139) cooled to -10°C
055 x dark frames
035 x flat frames
100 x bias frames
Binning 1x1
Integration time = 3 hours and 5 minutes
Total integration time = 4 hours and 30 minutes
Captured with APT
Guided with PHD2
Processed in Nebulosity and Photoshop
Equipment:
Telescope: Sky-Watcher Explorer-150PDS
Mount: Skywatcher EQ5
Guide Scope: Orion 50mm Mini
Guiding Camera: Zwo ASI 120 MC and SVBONY SV105 with ZWO USBST4 guider adapter
Imaging Camera: ZWO ASI1600MC Pro with anti-dew heater
Baader Mark-III MPCC Coma Corrector
Filter: Light Pollution filter and Optolong L-Pro
Integrated flux nebulae are visible in the field, and Sivan 2 shows vast red ring and green haze in the south part of the constellation Cassiopeia.
Here is a frame of integrated nebulae around Messier 31 with Apo-Elmarit-R 180mmF2.8.
www.flickr.com/photos/hiroc/6754827529/
Here is a frame of Sivan 2 with FSQ-106ED and reducer QE 0.73x at f/3.6
www.flickr.com/photos/hiroc/6224453705/
C/2014 E2 Jacques was drifting near the right upper corner.
equipment: Sigma 35mmF1.4 DG HSM "Art" and Canon EOS 5Dmk2-sp2, modified by Seo-san on Takahashi EM-200 Temma 2 Jr, autoguided with Takahashi FSQ-106ED, hiro-design off-axis guider, SX Lodestar, and PHD Guiding
exposure: 6 times x 30 minutes, 4 x 15 min, 3 x 4 min, and 3 x 1 minute at ISO 1,600 and f/4.0
The first exposure started at 10:05:48 August 29, 2014UTC.
site: 11,000 feet above sea level near Mauna Loa Observatory in Hawaii
Cepheus Flare Complex is clouds in the left upper quarter of the frame between Cepheus and Polaris near the left upper corner.
We can see green trace of drifting comet C/2014 E2 Jacques near the left edge. Here is an image of the comet taken just after this.
www.flickr.com/photos/hiroc/15178257005/
equipment: Sigma 35mmF1.4 DG HSM "Art" and Canon EOS 5Dmk2-sp2, modified by Seo-san on Takahashi EM-200 Temma 2 Jr, autoguided with Takahashi FSQ-106ED, hiro-design off-axis guider, SX Lodestar, and PHD Guiding
exposure: 6 times x 30 minutes, 5 x 15 min, 4 x 4 min, and 6 x 1 minute at ISO 1,600 and f/4.0
site: 11,000 feet above sea level near Mauna Loa Observatory in Hawaii
This summer feature within Cygnus includes a bright emission nebula, reflection nebulae in the surrounding dust clouds, and a "tail" of dark dust (Barnard 168) running off to the west. Here I've used narrowband filters to image it through my Bortle 7 (bright suburban) sky.
Tech Stuff: Borg 55FL/ZWO ASI 533MM/Astronomik NB filter set. 75 min x 30 second unguided exposures HA/ 100 min X 30 sec Sii/ 65 min O3. Imaged over 3 nights from my yard in Westchester County, NY.
In this crowded starfield covering over 3 degrees within the high flying constellation Cygnus, the eye is drawn to the Cocoon Nebula. A compact star forming region, the cosmic Cocoon punctuates a long trail of obscuring interstellar dust clouds. Cataloged as IC 5146, the nebula is nearly 15 light-years wide, located some 4,000 light years away. Like other star forming regions, it stands out in red, glowing, hydrogen gas excited by the young, hot stars and blue, dust-reflected starlight at the edge of an otherwise invisible molecular cloud. In fact, the bright star near the center of this nebula is likely only a few hundred thousand years old, powering the nebular glow as it clears out a cavity in the molecular cloud's star forming dust and gas. But the long dusty filaments that appear dark in this visible light image are themselves hiding stars in the process of formation
Telescope: Takahashi FSQ ED85
Camera: QSI683
Mount: Astrophysics Mach1 GTO
Filters: LRGB & Ha
Total Exposure: ~ 12h
Location: Mt Parnon - June 2014
More Info: www.celestialpixels.com/
The Cocoon Nebula in Cygnus is a star-forming region with a diameter of about 15 light-years and lying several thousand light-years from Earth.
The nebula itself is powered by the bright star visible near it's center and contains a cluster of young hot stars. Framed against an extremely dense star field, it seems to punctuate the end of a sinuous 2 degree long dark nebula cataloged as Barnard 168. With the Cocoon glowing at magnitude 7.2, the blackness of the dark nebulae surrounding it makes for a wonderful contrast to the Cocoon itself and results in a spectacular view in larger instruments.
Image Details: The attached images were taken Jay Edwards on June 17, 2018 simultaneously using (left) an 80mm f/6 triplet apochromatic refractor (ED80T CF) connected to a Televue 0.8X field flattener / focal reducer and (right) a vintage 1970 8-inch, f/7 Criterion newtonian reflector. The 80mm was piggybacked on the 8-inch, and the scopes utilized twin (unmodded) Canon 700D / t5i DSLRs.
These optics were tracked using a Losmandy G-11 mount running a Gemini 2 control system and guided using PHD2 to control a ZWO ASI290MC planetary camera / auto-guider in an 80mm f/6 Celestron 'short-tube' refractor which itself was piggybacked on top of the 80mm apo.
The attached composite image was constructed using, relatively speaking, extremely small stacks of short 1 minute sub-exposures, and consists of only 20 minutes total exposure for the 80MM shot & 30 minutes for the 8-in image (both in addition to applicable dark, flat & bias frames), and thus contains far more noise than we would normally produce.
Processed using a combination of DeepSkyStacker, PixInsight and PaintShopPro, as presented here it has been re-sized down to HD resolution and the bit depth has been lowered to 8 bits per channel.
Given such short exposures I was intrigued by the results and look forward to taking deeper shots when this object is once again conveniently placed in our evening skies next summer.
A wider field image of this object taken in August of 2016 and showing the extent of the dark nebula in this region can be found at the link attached here: www.flickr.com/photos/homcavobservatory/30655875511/in/al...
Not an easy target from London as it is quite faint but worth trying to capture because it's such a pretty object. With an f12 scope it took three and a half hours of exposure to get this much detail. A lot of stopping and starting due to guiding problems meant I had to crop it more than I wanted to resulting in the stars looking a bit bloated, and more sessions would only make that worse, so this attempt is completed. However this is definitely a target to return to.
[Wikipedia] IC 5146 (also Caldwell 19, Sh 2-125, and the Cocoon Nebula) is a reflection/emission nebula and Caldwell object in the constellation Cygnus. The NGC description refers to IC 5146 as a cluster of 9.5 mag stars involved in a bright and dark nebula. The cluster is about 4,000 light years away, and the central star that lights it formed about 100,000 years ago; the nebula is about 12 arcmins across, which is equivalent to a span of 15 light years.
26 x 8 minute exposures at 400 ISO (3 hours and 28 minutes)
27 x dark frames
20 x flat frames
21 x bias/offset frames (subtracted from flat frames only)
Captured with digiCamControl
Guided with PHD2
Processed in Nebulosity, Maxim DL and Photoshop
Equipment:
Celestron NexStar 127 SLT
Skywatcher EQ5 Mount
Orion 50mm Mini Guide Scope
ZWO ASI120 MC imaging and guiding camera
Canon 700D DSLR