View allAll Photos Tagged Fishhead_Nebula
The Fishhead Nebula is located in the constellation of Cassiopeia and is about 6000 light years away. It is an active star-forming hydrogen gas region that glows red when excited by nearby stars. Taken with 457mm f/4.2 Newt, MPCC, SBIG 8300M camera on 11/12/2014. Image details: 12x300s1x1L,6x150s2x2RGB
Hi,
Behold, NGC 896, also cataloged as IC 1795, better known as the Fishhead Nebula. Located in the constellation of Cassiopeia, this nebula offers us a multitude of nuances.
This is the bright part located on the western edge of IC 1805 (the Heart Nebula). NGC 896 was discovered by German-British astronomer William Herschel in 1787.
For this nebula, I opted for an SHO palette with the integration of RGB stars, in order to give it a more natural appearance.
Hoping you like the result?
the gear:
Newton Sky-watcher 200/800
One Ares-M pro player camera Player One Astronomy
Eq6R pro mount
Antlia Astronomy Filter Astronomy Filter SHO 3nm and LRGB
Approximately 43 hours of acquisition
The full version and the complete exifs: app.astrobin.com/i/vvymka
IC1805 Heart Nebula
Located 7500 light-years from Earth and covering a span of 130 light-years, the Heart Nebula is made of ionized hydrogen gas excited by the stars of the open cluster Melotte 15 in its center. The entire field of view of the Heart Nebula is 1 1/2 degrees, or 3 times wider than the moon. The tail of IC1795 Fishhead Nebula can be seen at the bottom right. North is to the right.
Scope/Mount: Orion ED80 Doublet Refractor with AstroTech AT2FF Field Flattener, Celestron CI-700 Mount
Camera: Orion StarShoot Pro V2 one-shot color
Guiding: QHY5L-IIM through Orion Deluxe OAG, PHD guiding software
Exposure: (24) 10 min
Software: Nebulosity, PhotoShop CS2
Comment: 08-28-15, Tierra del Sol, CA, good conditions.
IC 1795 (nicknamed the Fishhead Nebula or Northern Bear Nebula) is a bright emission nebula of about 70 light-years across with glowing gas and dark lanes of obscuring dust, located just over 6,000 light-years away from Earth in the northern constellation of Cassiopeia. The brighter region of the nebula is designated NGC 896. IC 1795 is located right at the tip of the heart in the famous Heart Nebula (IC 1805).
taken with the atik 314L+ with .85ff/fr on sw ed80apo and heq5pro.
first outing with the sw field flattener/focal reducer.
12 x 600s ha
8 x 600s oiii
4 x 900s sii
one to go back to for a lot more data.
To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA ift.tt/13DcvY9
To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA 1.usa.gov/1wmxkxD
The Fishhead nebula (NGC 896 / IC 795) is an emission nebula in the constellation Cassiopeia. A star forming region, the intense red colour comes from hydrogen photon emissions. Also visible in this nebula are dark lanes of obscuring dust. The nebula is approximately 6000 light years distant. The brighter region of the nebula is catalogued as NGC 896.
This nebula is a part of a much larger complex of nebulosity including the Heart Nebula (IC 1805).
Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA
Mount: SkyWatcher EQ6-R Pro
Controller: ZWO ASIAIR Pro
Main Camera: ZWO ASI533MC Pro at -10C
Filter: ZWO UV IR Cut filter
Focuser: ZWO EAF
Guide Camera: ZWO ASI174MM Mini guidecam
Guide via: ZWO OAG
Stacked from:
Lights 23 at 300 seconds, gain 100, temp -10C
Darks 10 at 300 seconds, gain 100, temp -10C
Flat 30 at 80.0ms, gain 100, temp -10C
Dark Flat 30 at 80.0ms, gain 100, temp -10C
Bortle 4 sky.
Integrated the saved frames in Astro Pixel Processor and adjusted in Photoshop CS4.
Fishhead Nebula and Mel15.
This was my first test of using a finder/guider instead of a separate guide scope and I am very happy with the result of sub arcsec rms guiding. This image consists of around 30 x 600s in Ha used as luminance and the colour is from an image I did last year of the whole heart using a 200mm lens.
Star forming region located 6000 light years away in the constellation of Cassiopeia. 22 x 5 minute Ha and 19 x 10 minutes of OIII using an ED80 refractor @ F4.5 and SXV-H9 mono CCD camera.
IC 1795, also nicknamed the Fishhead nebula, is an emission nebula in Cassiopeia.
This is a bicolor image with a synthetic green from 10h45 min of OIII and 9h20 min of Ha. This image could benefit from SII as well, but I decided that I had already spent enough time on it.
Imaged with an Atik 460 through a C14 with 0.63 reducer riding on a Paramount MX.
To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA ift.tt/13DcvY9
This cosmic portrait features glowing gas and obscuring dust clouds in IC-1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors using narrowband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC-1795 is itself located next to IC-1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy.
Tech card:
Imaging telescope: Explore Scientific 127mm ED TRIPLET APO.
Imaging camera: ZWO ASI1600MM Pro-Cool.
Mount: iOptron CEM60.
Guiding camera: ZWO ASI290MM mini.
Focal reducer: Explore Scientific 0.7 Reducer/Flattener.
Filters: Astronomik OIII 1.25" 12nm · Astronomik SII 1.25" 12 nm · Astronomik Ha 1,25" 12 nm.
Accessory: ZWO EAF Electronic Auto Focuser · ZWO ASIAIR · ZWO 8x 1.25" Filter Wheel (EFW).
Frames:
Astronomik Ha 1,25" 12 nm: 20x180" (1h) (gain: 139.00) -10C bin 1x1.
Astronomik OIII 1.25" 12nm: 20x180" (1h) (gain: 139.00) -10C bin 1x1.
Astronomik SII 1.25" 12 nm: 20x180" (1h) (gain: 139.00) -10C bin 1x1.
Integration: 3h.
RA center: 2h 28' 53"
DEC center: +62° 2' 55"
Pixel scale: 1.170 arcsec/pixel.
Orientation: 2.045 degrees.
Field radius: 0.914 degrees.
Avg. Moon age: 25.37 days.
Avg. Moon phase: 18.33%
Bortle Dark-Sky Scale: 4.00.
A re-process of my data of Oct. 24, 2019.
Imaging location: Abu Dhabi desert, UAE.
C 1795 (nicknamed the Fishhead Nebula or Northern Bear Nebula) is a bright emission nebula of about 70 light-years across with glowing gas and dark lanes of obscuring dust, located just over 6,000 light-years away from Earth in the northern constellation of Cassiopeia. The brighter region of the nebula is designated NGC 896.
Captured on. 2014:23:09
C: Atik 428ex
M: G11 Gemini L4
T: Megrez ED 80II
T: 3x20 min
F: 7nm Baader Ha
G: 66mm PHD1 QHY5LII
S: SGP.
Stacked in DSS. Processed in Startools and CS2.
SharpCap Live Stack
Photoshop Edit
[ZWO ASI294MC Pro]
Debayer Preview=On
Pan=0
Tilt=0
Output Format=FITS files (*.fits)
Binning=1
Capture Area=4144x2822
Colour Space=RAW16
High Speed Mode=Off
Turbo USB=60
Flip=None
Frame Rate Limit=Maximum
Gain=300
Exposure=60
Timestamp Frames=Off
White Bal (B)=50
White Bal (R)=50
Brightness=3
Temperature=-14.1
Cooler Power=35
Target Temperature=-15
Cooler=On
Auto Exp Max Gain=285
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=110
Mono Bin=Off
Banding Threshold=35
Banding Suppression=30
Apply Flat=E:\SharpCap Captures\2019-02-01\FLATS-BIAS-COL\flats\19_51_27_offset=0.153%.fits
Subtract Dark=E:\SharpCap Captures\darks\ZWO ASI294MC Pro\RAW16@4144x2822\60.0s\gain_300\dark_20_frames_-14.8C_2019-01-26T05_02_54.fits
#Black Point
Display Black Point=0.0374088822894168
#MidTone Point
Display MidTone Point=0.303286972049806
#White Point
Display White Point=0.99609375
TimeStamp=2019-02-02T01:57:03.7911568Z
SharpCapVersion=3.2.5949.0
The Fish head nebula (IC1795) features glowing gas and dust in a star forming area in Cassiopeia. It s part of the Heart nebula (IC1805) complex that is located at about 6000 light years away.
Taken from my home under light polluted skies using the ZWO Duo Filter.
Stacked from 60 120second images in Pixinsight
Camera: ASI1600MC
Scope: 8 Inch Celestron RASA
Mount: Orion Atlas EQ/G
To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA
The "Fishhead Nebula" in Cassiopeia. Using my 10" f4 newtonian and 314L with 7nm H-alpha filter I captured 10 subs at 5mins each,stacked in Deepskystacker and processed inNebulosity3.
Image taken 23/08/14
The Fish Head Nebula, also known as the Northern Bear Nebula, is part of a huge star forming system of gas and dust located along the Perseus spiral arm of our Milky Way galaxy. The nebula is located in the constellation Cassiopeia approximately 6000 light-years from the Earth and is adjacent to the much larger Heart Nebula. The brighter region of IC 1795 is designated NGC 896 and is the home to many massive, young, stars. These stars radiate copious amounts of ultraviolet light. This UV radiation excites the surrounding gas and causes it shine much the same way as a neon light emits its colorful hues.
Taken with the Celestron 8 Inch RASA and ZWO ASI1600MC Pro. Processed in PixInsight 60 1 minute light frames with Darks, Flats and Bias. post-Processed in Lightroom
IC 1795 is an emission nebula located approximately 6000 light-years away in the constellation Cassiopeia . It covers a field of about 20 minutes of arc , which is approximately 70 light years 1 .
Near the double cluster of Perseus and the nebula of the Heart . Approximately 6000 light-years away from us, this complex extends across the Perseus arm of our Galaxy, the Milky Way. This image covers a field of 70 light-years long.
It is easy to see and is in a very rich environment with IC 1805 and IC 1848, as well as many open clusters.
The Heart nebula (IC 1805) and Fishhead nebula (IC 1795) in the Cassiopeia constellation. Captured on Nov 16, 2018 with the SW Pro80ED scope fitted with a 0.8x focal reducer and a dual NB (HA+OIII) filter. Imaged with HA modded Nikon D5300 camera at ISO 800, f6, 56x2.5Min (140 minutes total), unguided. The heart nebula also includes the bright young open star cluster Melotte 15 at the center of the image.
We first captured the Heart nebula (IC1805) on November 16, 2018. This nebula is ~7500 light years away in Cassiopeia constellation. It is vast star forming region spanning over 100 light years across.
At the center of the Heart, there is a bright young star cluster, named Melotte 15, This cluster has some stars that are as much as 50 times the mass of our sun. There massive stars emit powerful UV radiation which is converted by the surrounding nebulosity to visible light. Hydrogen glows a deep red and deep blue (H-Alpha and H-Beta emissions) giving this nebula a predominantly red/pink appearance. However, there are excited oxygen atoms giving off green/blue emissions.
We also captured the Fishhead nebula (IC1795) which is the bright nebula at the top of our image. It was taken with a dual band filter that only captured deep red emissions from hydrogen atoms and blue/green emissions from oxygen atoms. We had originally processed the Heart nebula on Nov 16, 2018. I tried to to bring out the blue/green OIII nebulosity, but there likely was not enough of it to show up nicely. I used APP RGB combine tool to achieve this and some post processing StarTools.
We used our Skywatcher Pro80ED refractor fitted with a 0,8x Focal reducer and a dual narrowband filter for hydrogen and oxygen emissions with an HA modded Nikon D5300 camera. Capture details are :ISO 800, f5.6 and 140 minutes of total exposure (17x3min+21x2.5Min+18x2Min). We hope to capture more of the blue/green emissions of oxygen with an OIII filter in future.
The Heart Nebula (IC 1805) located on the right of this image, has a shape reminiscent of a classical heart symbol. To the top of the Heart nebula, lies The Fishhead nebula (IC 1795) is a part of a complex of star forming regions that lie at the edge of a large molecular cloud.
The Soul Nebula (IC 1871) is visible on bottom left of this image. Both nebulas shine brightly in the red light of energized hydrogen.
Several young open clusters of stars are visible near the nebula centers. Melotte 15 (Heart of the Heart nebula) is a popular target.
Light takes about 6,000 years to reach us from these nebulas, which together span roughly 300 light years.
IC 1795 (Fish head nebula) @ 41 x 240s / Halpha and OIII
Clear sky conditions
Skywatcher Newton 200/1000
AZ EQ 5
ZWO ASI294 MC Pro @ -20°C
Baader MPCC Mark III Coma Corrector
ZWO dual band filter HA (15nm) OIII (35nm)
41 x 240s @ gain 121
Autoguider with ZWO ASI120 MS-C
PPEC off
ZWO EAF Motor focuser (controlled by APT)
Software:
EQMOD/ASCOM v2.00w
Stellarium 0.20.3
Astro Photography Tool (APT) 3.88.5
Platesolving: ASTAP 3.88.3
Guiding: PHD2 2.6.10
Stacking: SiriL 0.99.10.1 with Halpha / OIII extraction
Post processing:
Halpha combined with OIII according to thecoldestnights.com/2020/06/pixinsight-dynamic-narrowban... using SiriL
Green channel composite in SiriL with Pixelmath
Export to PNGs for Photoshop
Layers combined in Photoshop with masks and coloring (filter does not separate colors well)
Background flattening with AstroFlatPro
Reduced star size with Astronomy Tools
Noise reduction with Topaz Labs DeNoise AI
Heart Nebula (IC 1805/Sh2-190), Fishhead Nebula (IC 1795), and Soul Nebula (IC 1848)
2 panel mosaic of the Heart Nebula, Fishhead Nebula, and Soul Nebula in the constellation Cassiopeia.
-------------------------------------------------------
Location: Montclair, California, USA (Bortle 8)
Date: January 2, 2022 & January 4-5, 2022
Moon: New Moon - Waxing Crescent (14%)
Camera: ZWO ASI6200MC Pro
Telescope: William Optics ZenithStar 61II APO f/5.9
Flattener/Reducer: William Optics FLAT61A Field Flattener
Filter: Optolong L-eXtreme 2”
Mount: Sky-Watcher EQ6-R Pro
Guide Camera: ZWO ASI120MM Mini
Guide Scope: William Optics UniGuide 32 f/3.75
Camera Settings: Gain 100 | f/5.9 | 5 min
Acquisition: 37 x 5 min Lights for Heart & Fishhead Nebula, 53 x 5 min Lights for Soul Nebula | 50 Darks | 100 Bias
Integration Time: 7 hrs 30 min
Software: ZWO ASIAIR PRO, PixInsight, PTGui Pro, Topaz Labs Denoise AI, Adobe Lightroom Classic
-------------------------------------------------------
Copyright © 2022 Steven K. Wu Photography. All Rights Reserved.
Details: beautyaboveus.com/post/186678555178/ic-1795-the-fishhead-...
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To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA ift.tt/13DcvY9
NGC 896, IC 1795, Fishhead Nebula, Lynds Catalogue LBN 645. L(Ha)SHO narrow band composite, Foraxx Palette
Image is NGC 896, the Fishhead Nebula in L(Ha)SHO narrow band. Image and an annotated version. The image is rendered with the Foraxx Palette Utility script in PixInsight. Apart from a little cosmetic tweaking at the end, the product is all Foraxx.
NGC 896 is an emission nebula of glowing gas and darker dust lanes situated in the Perseus Arm in the northern sky. It forms a small part of the larger Heart nebula (which is several degrees square).
Details:
Fishhead Nebula, NGC 896, IC 1795, LBN 645
Distance: 6,000 lyrs
Diameter: 70 lyrs
Angle subtended: 40'x15'
Constellation: Cassiopeia
Data taken in Astronomik narrowband filters: Ha (656nm), Sii (672nm) and Oiii (501nm). Total exposure time 15 hrs.
Ha 1x1 bin - 22x 600s = 3.7hrs, 03-04 September, seeing 2.6", scope West side, prime focus
Sii 1x1 bin - 33x 600s = 5.5hrs, 04-05 September, seeing 1.8", scope West side, prime focus
Oiii 1x1 bin - 35x 600s = 5.8 hrs, 05-06 September, seeing 1.2", scope West side, prime focus
Master lights:
FWHM (pxl)pre BXTpost BXT
Ha2.4401.476
Sii2.9421.666
Oiii3.1632.524
-----
Plate solver:
Resolution ............... 1.247 arcsec/px
Focal distance ........... 750.71 mm
Pixel size ............... 4.54 um
Field of view ............ 56' 1.8" x 43' 58.3"
Image center ............. RA: 2 28 13.183 Dec: +62 01 33.70
Image bounds:
top-left .............. RA: 2 24 25.590 Dec: +62 25 19.95
top-right ............. RA: 2 32 27.835 Dec: +62 21 12.52
bottom-left ........... RA: 2 24 04.018 Dec: +61 41 26.22
bottom-right .......... RA: 2 31 54.880 Dec: +61 37 24.65
-----
Rig:
Imaging scope: SW Startravel 150mm F5 Refractor, Baader Diamond Track, (2.5x Celestron Luminos 2inch imaging barlow), Atik 460EX mono
Guide scope: SW Evostar 90mm F10, with guiding XY stage, ZWO 120MM camera
Guiding: 2 stage PHD: high frequency guide scope (mount tracking) and low frequency OAG image train guiding (guidescope flex)
Mount: Home made German Equatorial pillow block mount, permanently rooftop mounted. Spring loaded DEC axis gearing.
Other gadgets: ST4 based anti vibration shutter, ST4 based PEC
-----
Processing Lights:
PixInsight: Lights, Darks, Flats, Biases: master dark/dark library-> masterbias-> superbias-> calibrated flats-> master flat-> calibrated lights-> cosmetic correction-> aligned lights-> master light-> BXT
PixInsight: Master BXT lights-> crop-> linfit-> final master lights
PixInsight: final master lights->StarNet2 starless-> LRGB Channel Combination (Ha, SHO)-> export xisf starless master.
GradXpert Gradient removal:->import starless xisf-> GXPT(20pc,3sg)-> export xisf, fits
Affinity Photo 32 bit image processing:-> import LSHO gxpt starless fits-> accept default stretch-> curves-> lvl(master)-> Topaz Denoise(LL, 22, 31)-> Tpzdn(ST,15,13)-> export tiff 16 bit
PixInsight: import tiff16-> channel separation-> Foraxx Palette Utility Script-> export Foraxx tiff 16
Affinity Photo final tart ups:-> import Foraxx tiff 16-> cvs-> scol (50%blend)-> 2x clarity, B&C tweaks->Tpzdn(LL,3,0)-> paste in star mask layer, blend mode 'screen', B&C, White Balance adjust.
-----
Processing Star Mask:
PixInsight: final master lights-> RGB Channel Combination (SHO)-> export xisf
GradXpert Gradient removal:->import xisf-> GXPT(20pc,3sg)-> export xisf
PixInsight: import SHO gxpt master-> StarNet2 star mask-> SCNR(Mg, 0.57)-> export fits starmask
Affinity Photo 32 bit image processing:-> import SHO gxpt starmask fits-> accept default stretch-> vibrance-> Sii master light star mask overlay (B&C adj, blend mode 'luminosity')-> paste Star Mask layer on top of starless final (blend mode 'screen').
-----
NGC 896, IC 1795, Fishhead Nebula, Lynds Catalogue LBN 645. L(Ha)SHO narrow band composite, Foraxx Palette
Image is NGC 896, the Fishhead Nebula in L(Ha)SHO narrow band. Image and an annotated version. The image is rendered with the Foraxx Palette Utility script in PixInsight. Apart from a little cosmetic tweaking at the end, the product is all Foraxx.
NGC 896 is an emission nebula of glowing gas and darker dust lanes situated in the Perseus Arm in the northern sky. It forms a small part of the larger Heart nebula (which is several degrees square).
Details:
Fishhead Nebula, NGC 896, IC 1795, LBN 645
Distance: 6,000 lyrs
Diameter: 70 lyrs
Angle subtended: 40'x15'
Constellation: Cassiopeia
Data taken in Astronomik narrowband filters: Ha (656nm), Sii (672nm) and Oiii (501nm). Total exposure time 15 hrs.
Ha 1x1 bin - 22x 600s = 3.7hrs, 03-04 September, seeing 2.6", scope West side, prime focus
Sii 1x1 bin - 33x 600s = 5.5hrs, 04-05 September, seeing 1.8", scope West side, prime focus
Oiii 1x1 bin - 35x 600s = 5.8 hrs, 05-06 September, seeing 1.2", scope West side, prime focus
Master lights:
FWHM (pxl)pre BXTpost BXT
Ha2.4401.476
Sii2.9421.666
Oiii3.1632.524
-----
Plate solver:
Resolution ............... 1.247 arcsec/px
Focal distance ........... 750.71 mm
Pixel size ............... 4.54 um
Field of view ............ 56' 1.8" x 43' 58.3"
Image center ............. RA: 2 28 13.183 Dec: +62 01 33.70
Image bounds:
top-left .............. RA: 2 24 25.590 Dec: +62 25 19.95
top-right ............. RA: 2 32 27.835 Dec: +62 21 12.52
bottom-left ........... RA: 2 24 04.018 Dec: +61 41 26.22
bottom-right .......... RA: 2 31 54.880 Dec: +61 37 24.65
-----
Rig:
Imaging scope: SW Startravel 150mm F5 Refractor, Baader Diamond Track, (2.5x Celestron Luminos 2inch imaging barlow), Atik 460EX mono
Guide scope: SW Evostar 90mm F10, with guiding XY stage, ZWO 120MM camera
Guiding: 2 stage PHD: high frequency guide scope (mount tracking) and low frequency OAG image train guiding (guidescope flex)
Mount: Home made German Equatorial pillow block mount, permanently rooftop mounted. Spring loaded DEC axis gearing.
Other gadgets: ST4 based anti vibration shutter, ST4 based PEC
-----
Processing Lights:
PixInsight: Lights, Darks, Flats, Biases: master dark/dark library-> masterbias-> superbias-> calibrated flats-> master flat-> calibrated lights-> cosmetic correction-> aligned lights-> master light-> BXT
PixInsight: Master BXT lights-> crop-> linfit-> final master lights
PixInsight: final master lights->StarNet2 starless-> LRGB Channel Combination (Ha, SHO)-> export xisf starless master.
GradXpert Gradient removal:->import starless xisf-> GXPT(20pc,3sg)-> export xisf, fits
Affinity Photo 32 bit image processing:-> import LSHO gxpt starless fits-> accept default stretch-> curves-> lvl(master)-> Topaz Denoise(LL, 22, 31)-> Tpzdn(ST,15,13)-> export tiff 16 bit
PixInsight: import tiff16-> channel separation-> Foraxx Palette Utility Script-> export Foraxx tiff 16
Affinity Photo final tart ups:-> import Foraxx tiff 16-> cvs-> scol (50%blend)-> 2x clarity, B&C tweaks->Tpzdn(LL,3,0)-> paste in star mask layer, blend mode 'screen', B&C, White Balance adjust.
-----
Processing Star Mask:
PixInsight: final master lights-> RGB Channel Combination (SHO)-> export xisf
GradXpert Gradient removal:->import xisf-> GXPT(20pc,3sg)-> export xisf
PixInsight: import SHO gxpt master-> StarNet2 star mask-> SCNR(Mg, 0.57)-> export fits starmask
Affinity Photo 32 bit image processing:-> import SHO gxpt starmask fits-> accept default stretch-> vibrance-> Sii master light star mask overlay (B&C adj, blend mode 'luminosity')-> paste Star Mask layer on top of starless final (blend mode 'screen').
-----
Heart Nebula (IC 1805/Sh2-190) and Fishhead Nebula (IC 1795)
The Heart Nebula and Fishhead Nebula in the constellation Cassiopeia.
-------------------------------------------------------
Location: Montclair, California, USA (Bortle 8)
Date: January 2, 2022
Moon: New Moon
Camera: ZWO ASI6200MC Pro
Telescope: William Optics ZenithStar 61II APO f/5.9
Flattener/Reducer: William Optics FLAT61A Field Flattener
Filter: Optolong L-eXtreme 2”
Mount: Sky-Watcher EQ6-R Pro
Guide Camera: ZWO ASI120MM Mini
Guide Scope: William Optics UniGuide 32 f/3.75
Camera Settings: Gain 100 | f/5.9 | 5 min
Acquisition: 37 x 5 min Lights | 50 Darks | 100 Bias
Integration Time: 3 hrs 5 min
Software: ZWO ASIAIR PRO, PixInsight, Adobe Lightroom Classic
-------------------------------------------------------
Copyright © 2022 Steven K. Wu Photography. All Rights Reserved.
Telescope Skywatcher Startravel-120 achromatic refractor f/5 Camera Atik 414 mono
filter Ha 4X10 min
Mount Skywatcher EQ8
date 4/12/2022
SharpCap Live Stack
Photoshop Edit
[ZWO ASI294MC Pro]
Debayer Preview=On
Pan=0
Tilt=0
Output Format=FITS files (*.fits)
Binning=1
Capture Area=4144x2822
Colour Space=RAW16
High Speed Mode=Off
Turbo USB=60
Flip=None
Frame Rate Limit=Maximum
Gain=300
Exposure=60
Timestamp Frames=Off
White Bal (B)=50
White Bal (R)=50
Brightness=3
Temperature=-14.1
Cooler Power=49
Target Temperature=-15
Cooler=On
Auto Exp Max Gain=285
Auto Exp Max Exp M S=30000
Auto Exp Target Brightness=110
Mono Bin=Off
Banding Threshold=10
Banding Suppression=0
Apply Flat=E:\SharpCap Captures\2019-03-22\FLAT-390-300g-BIAS-MONO\flats\21_08_28_offset=0.127%.fits
Subtract Dark=E:\SharpCap Captures\darks\ZWO ASI294MC Pro\RAW16@4144x2822\60.0s\gain_300\dark_20_frames_-14.8C_2019-01-26T05_02_54.fits
#Black Point
Display Black Point=0.179814570783133
#MidTone Point
Display MidTone Point=0.306563839529018
#White Point
Display White Point=0.998046875
TimeStamp=2019-03-23T01:35:54.1224659Z
SharpCapVersion=3.2.5964.0
Imaging telescope or lens:Explore Scientific ED 102 APO FCD1
Imaging camera:ZWO ASI 1600MM PRO
Mount:SkyWatcher HEQ5 Pro
Guiding telescope or lens:Omegon Microspeed Guide Scope 60mm
Guiding camera:ZWO AS120MM
Focal reducer:TS PHOTOLINE x0.80 Reducer/Korrektor
Software:Adobe Phosotshop CC , PIXINSIGHT 1.8 , SharpCap Pro SharpCap Imaging Capture Software , Seqence Generator Pro , Open Guiding PHD 2.6.2
Filters:Astronomik H Alpha 6 nm 1.25" , Astronomik S II 6nm 1,25" , Astronomik O III 6nm 1,25"
Accessory:Pegasus Astro FocusCube
Dates:Oct. 4, 2018 , Oct. 9, 2018 , Oct. 12, 2018 , Dec. 24, 2018 , Dec. 25, 2018
Frames:
Astronomik H Alpha 6 nm 1.25": 200x180" (gain: 139.00) -20C bin 1x1
Astronomik O III 6nm 1,25": 170x180" (gain: 75.00) -20C bin 1x1
Astronomik S II 6nm 1,25": 179x180" (gain: 139.00) -20C bin 1x1
Integration: 27.4 hours
Darks: ~50
Flats: ~50
Bias: ~200
The Fishhead nebula (IC 1795) in Cassiopeia constellation. Cropped from the earlier full Heart nebula image captured on Nov 16, 2018 with the SW Pro80ED scope fitted with a 0.8x focal reducer and a dual NB (HA+OIII) filter. Used HA modded Nikon D5300 camera at ISO 800, f6, 56x2.5Min (140 minutes total), unguided. The image was post processed to reduce Red channel dominance to bring out the greens and the dark lanes.
To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. via NASA ift.tt/2YbkBbE
Camera: ZWO 183MM Pro
Mount: Celestron AVX
Telescope: Skywatcher Evostar 72mm
Field flattener: Orion field flattener for short refractors
Guided with Astromania 60mm guide scope
Guide camera: ZWO Asi 120mm-s
Gain: 120
Sensor Temperature: -10C
Ha Frames: 45 @240s
Integration time : 3h
Flats: 30
Bias: 100 (I think)
Darks: 50
Catured by APT software
Polar aligned by SharpCap
Stacked and processed by Pixinsight
SkyWatcher EQ6-R PRO
SvBony 80ED with flattener/reducer 0.8x
Guidescope 60mm + ASI 120MM
Canon T3I Full Spectrum
Optolong L-Enhance 2"
18 x 300" Light
15 Dark
50 Flat
50 Bias
The Heart Nebula, also known as IC 1805, is located about 7,500 light-years away in the Cassiopeia constellation. This massive emission nebula resembles a human heart, emitting a powerful red light from its large quantity of hydrogen gas that causes the object to glow. In the Heart Nebula's center is the open star cluster Melotte 15, where many young stars erode several beautiful dust pillars with their powerful heat and winds. Its companion, the Fishhead Nebula, is located in the lower right corner of this photo.
I wanted to do something special for Valentine’s Day, so for the first time, I attempted to make a mosaic. It was a challenge stitching all six panels seamlessly together since some of the light frames were taken on different nights, but overall, I say I did a fantastic job with the final product. I hope you enjoy the results as much as I do!
Process:
6 Panel Mosaic
L-Extreme: 120 Light (3 min exposure, Gain 120) - 30 Dark - 30 Flats - 30 Bias - 30 Dark Flats
L-Pro: 360 Light (30 sec exposure, Gain 120) - 60 Dark - 30 Bias
Total Exposure Time: 9 hours
Total Time Getting Subs and Processing: 39 hours
Stacked in DeepSkyStacker, Stitched in AstroPixelProcessor, Processed using Photoshop
Gear:
Sky-Watcher EvoStar 100 APO Doublet Refractor
Sky-Watcher EQM-35 Pro
ZWO ASI294MC Pro
ZWO EAF
ZWO ASIAIR Plus
Askar OAG with ASI174MM Mini
Optolong L-Extreme 2” Filter (For Hydrogen and Oxygen)
Optolong L-Pro 2” Filter (For True Star Colors)
Instagram: @astrodrews
What's that inside the Heart Nebula? First, the large emission nebula dubbed IC 1805 looks, in whole, like a human heart. The nebula glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all created by a small group of stars near the nebula's center. In the center of the Heart Nebula are young stars from the open star cluster Melotte 15 that are eroding away several picturesque dust pillars with their energetic light and winds. The open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia. At the top right is the companion Fishhead Nebula. via NASA
Telescope Skywatcher Startravel-120 achromatic refractor f/5 Camera Atik 414 mono
filter Ha 15X5 min, Sii 10X5min
Mount Skywatcher EQ8
date 30/12/2022
Check this out from NASA -- To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula's colors were created by adopting the Hubble color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy. At that distance, this picture would span about 70 light-years across IC 1795. (ift.tt/2YbkBbE)