Explanation: Many stars like our Sun were formed in open clusters. The above pictured open cluster, M11, contains thousands of stars and is just over five thousand light years distant. The stars in this cluster all formed together about 250 million years ago. The bright young stars in M11 appear blue. Open clusters, also called galactic clusters, contain fewer and younger stars than globular clusters. Also unlike globular clusters, open clusters are generally confined to the plane of our Galaxy. M11 is visible with binoculars towards the constellation of Scutum. (Text: apod.nasa.gov/apod/ap030122.html )

This picture was photographed during 2 nights in August, 2014 in 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.

RGB filter set Baader Planetarium.

RGB= 18*150-200 sec. each filter, unbinned. 2.5 hours total

Processed Pixinsight 1.8, Fitstacker and Photoshop CS

Captured last night in the desert of Arizona. The three stars across the top are Orion’s Belt, and from left to right the names of the stars are Alnitak, Alnilam, and Mintaka. To the left of Alnitak is the Flame Nebula (NGC 2024), and below Alnitak is the fainter Horsehead Nebula (LDN 1630). You can also just make out NGC 2023, a small nebula to the left of the Horsehead Nebula. In the bottom of the frame is the bright Orion Nebula (M42) with the smaller Running Man Nebula (M43) just above it. There are other fainter dust lanes and gas clouds scattered here and there.

Nikon Z 7, FTZ lens adapter and NIKKOR 70-200mm f/4 lens @ 200mm, f/5.6, ISO 800. Stack of 30 exposures at 1 minute each. I used an iOptron SkyGuider Pro star tracker. The images were prepared in Lightroom, stacked in Starry Sky Stacker (Mac), and edited in Photoshop for color correction and to bring out the details.

Visit my website to learn more about my photos and video tutorials: www.adamwoodworth.com

Cygnus rising over the Alabama Hills in southeastern California. The two bright stars are Deneb (left) and Sadr (right), and the nebula to the left is the well-known North America Nebula (NGC7000). Directly to the right of Sadr you can also see the Crescent Nebula. The red regions are mostly ionized Hydrogen and Oxygen that are too dim to see with the naked eye, but these nebulae are some of the most massive in the sky. This was taken with only a 100mm lens!

Here is a very wide field view of the famous double cluster in the constellation Perseus (between Perseus and Cassiopeia), they are also designate NGC 869 and NGC 884. Zooming in on the image will show a sprinkling of red supergiant stars in the field. Did you know that the Perseus Double Cluster is surrounded by one of the largest concentrations of red supergiants stars in the sky? (Red supergiants, neutrinos and the Double Cluster, Tristram Brelstafff, 1996)

Tech Specs: Williams Optics Redcat 51 APO, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: September 25, 2019. Location: The Dark Side Observatory, Weatherly, PA, USA.

Finally completed a new image and the first one of 2022. There have been a lot of changes in the setup, including the main imaging scope, and we had enough clear new moon nights in January for me to put a decent amount of time into an image from the backyard. This will likely be my last time imaging from my backyard as there are some big changes (for the better) coming for my AP journey!

Messier 42, the Orion Nebula, is probably the most prominent beginner DSO that you see imaged by amateurs (followed closely by M31). Bright enough to be viewed naked eye from heavily light polluted areas, this emission nebula is an active star forming region surrounded by tons of dust and Hydrogen Alpha emission. Because the core of the nebula is so bright, it is often blown out in many images (including this one! - I was too lazy and did not optimize my Luminance images to prevent this). Easy to see/capture, difficult to properly process - even for experienced folks. A challenge for new and veteran imagers alike.

- Location(s): Bortle 6/7 backyard

- Total Integration Time: 14.25 Hours

Equipment:

- Scope: Esprit 100ED w/ 1x Flattener

- Imaging Camera: QHY 268M

- Filters: Chroma LRGB (36mm)

- Mount: Skywatcher EQ6-R Pro & Astro Physics Mach1GTO

- Guidescope: SVBony 50mm Guidescope

- Guide camera: ASI 120mm mini

- Accessories: Moonlite NiteCrawler WR35, Pegasus Ultimate Powerbox v2, QHY Polemaster

------------------------------------------------------------

Software:

- N.I.N.A for image acquisition, platesolving, and framing

- PHD2 for guiding

- PixInsight and Lightroom for processing

-------------------------------------------------------------

Acquisition:

- L: 122 x 3m

- R: 63 x 3m

- G: 40 x 3m

- B: 60 x 3m

- All images at Gain 56, Offset 25 (Readout mode 1) and -5C sensor temperature

- 20 flats per filter

- Master Bias from Library

- Nights: 1/6, 1/7, 1/28, 1/29/22

--------------------------------------------------------------

Processing:

- BatchPreProcessing to calibrate all images

- SubFrameSelector to reject/approve subs and weigh approved

- ImageIntegration with SFS weights

Luminance Processing:

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- Deconvolution via Oke's method

- GeneralizedHyperbolicStretch for initial stretch

- CurvesTransformation for contrast + stretch of dust

- RangeMask on core + LocalHistogramEqualization to bring back dust details (trapezium blown out)

RGB Processing (apply to each master):

- DynamicCrop

- DynamicBackgroundExtraction

- StarAlign RGB masters to Luminance

- ChannelCombination to combine into color image

- PhotometricColorCalibration

- BackgroundNeutralization

- MaskedStretch to bring to nonlinear

- HistogramTransformation for further stretch

- CurvesTransformation for contrast

- SCRN green at 0.25

- CurvesTransformation on red channel to make dust more brown

- Invert -> SCNR green @ 0.25 -> invert back

Combine into LRGB and further processing:

- LRGBCombination with Chrominance NR enabled

- Slight CurvesTransformation for contrast

- Original RangeMask + CurvesTransformation for slight saturation boost in emission and smaller saturation boost in background

- RangeMask + UnsharpMask for sharpening of nebula details and dust lanes

- DynamicCrop

Bring into Adobe LightRoom:

- 3x radial filters to color balance left and right regions of image

In a Deep Space.

The Sombrero Galaxy (also known as M104 or NGC 4594) is a peculiar galaxy with stunning features - a bright nucleus enshrouded by an enormous central bulge and a striking dust ring. Viewing from an almost edge-on angle, the galaxy looks like a shining sombrero floating in space.

The dust ring is highly symmetrical and contains most of the galaxy's cold molecular gas. Some hypothesize that an elliptical galaxy collided with a disk galaxy billions of years ago, creating this jaw-dropping maverick.

Sombrero is a member of "Virgo II Groups", a band of more than 100 galactic clusters and individual galaxies stretching across the night sky. Many galaxies can be found in this image hiding among the stars: some are spiral, some are elliptical, and most are millions of light-years away.

(The original data was acquired from Telescope Live, which I processed using pixinsight and photoshop).

Distance from Earth: 5219 light years

30*2min ( ~1h not enough but the cloud incoming ! )

DOF (20/20/20)

200/1000 PDS on HEQ5 Pro Mount

Altair GPcam on 80/400 for guiding

Canon 1200d Astrodon inside

Operations image of the week:

On 10 August 2016, ESA’s tracking station at New Norcia, Western Australia, hosting a 35 m-diameter, 630-tonne deep-space antenna, received signals transmitted by NASA’s Cassini orbiter at Saturn, through 1.44 billion km of space.

“This was the farthest-ever reception for an ESA station, and the radio signals – travelling at the speed of light – took 80 minutes to cover this vast distance,” says Daniel Firre, responsible for supporting Cassini radio science at ESOC, ESA’s operations centre in Darmstadt, Germany.

The signal reception was part of a series of tests to prepare several ESA stations to support Cassini’s radio science investigations, planned to begin later in 2016.

This image shows New Norcia station as seen in 2014 by Dylan O’Donnell, an amateur photographer based in Byron Bay, Australia (the blob of light apparently hovering above the antenna is a light artefact, ‘lens flare’).

Credit: ESA/D. O'Donnell

IC 1396 is an open cluster with a diffuse and emission nebula as well as dark dust clouds, the winds of these nebulae forms the IC 1396 complex. The “Elephant Trunk” itself (IC1396A) is about 20 light years and the whole area covers hundreds of light years. IC 1396 is approximately 2,400 to 3,000 light years distant residing in the constellation of Cepheus (The King).

Image Profile:

Lee, IL

Type: HaLRGB

Frames: Ha 12x300 1x1; Lum 18x180 1x1; RGB 18x120 2x2 each

Imaging Date: 20140802

Hardware:

-Main scope: AT8RC with 0.8 reducer/flattener

-Guiding Scope: Orion 80mm Short Tube

-CCD: QHY9M with filter wheel with LRGB Ha

-Orion Atlas Mount

Imaging Applications:

-Acquiring: Nebulosity Ver. 3.0.2

-Guiding: PHD Ver. 1.11.3

Processing Applications:

-CCD Stack

-Photoshop cs3

Comments: Fair night with decent transparency until 3:00am, low winds and dew. Low temp 67 F.

To orientate viewers - this is the 'sword' of Orion, shown on its side

Hi Folks,

IC 63 - The Ghost of Cassiopeia is the result of just under 10 hours of wideband and narrowband data collected during the incredible stretch of weather we just had in western NY November 5-8, 2021. I ended up getting in 4 nights of capture on 3 scopes and collected data on 9 Targets!

This is the fourth image I have been able to process from this trove of data.

This was taken with my William Optics 132mm FLT APO scope, the IOptron CEM60 mount, and the ZWO ASI1600MM-Pro camera.

IC 63 is the the Ghost of Cassiopeia and I have to say that the processing of this image certainly “haunted” me!

I would love to say that the data collected was perfect and the image that resulted was easily achieved through simple processing but that is simply not true. This one was a bit of a nightmare!

I lost frames due to cloud cover, the image from night one ended up having a different camera rotation compared to the other nights, and finally, dust on the lens caused some bloated stars and a HORRIBLE artifact of sensor microlens reflections on the bright star Gamma Cas -- Arrrrrggggggh!

The processing on this one was a real challenge to rescue any kind of decent image!

See the full details on the capture and extensive processing notes for this image that are available on my website at the link below:

cosgrovescosmos.com/projects/ic63-lhargb

Please check it out and let me know if you have any questions.

Thanks for looking!

Pat

IC1396 - Elephant's Trunk Nebula

The Elephant's Trunk Nebula is a concentration of interstellar gas and dust located in the constellation Cepheus about 2,400 light years away from Earth. This nebula is now thought to be a site of star formation, containing several very young (less than 100,000 yr).

Equipment & Image Details:

Orion ED80 scope, Celestron AVX mount, ZWOASI1600MM Pro camera. Narrowband subs: 9*360 sec Ha filter, 9*360 sec OIII filter, 8*360 sec SII filter.

Processed with PixInsight and Photoshop.

Unfortunately the animation of the .GIF in Flickr can only work if viewed in the All Sizes page and click on the "Original". Here is a link and this should work :)

www.flickr.com/photos/terryhancock/49386432311/sizes/o/

I wanted to illustrate to you the differences between the more natural colors seen in the HaLRGB image as opposed to the incredible detail seen in the narrowband Hubble Palette image by providing you with an animated .GIF of the 2 images

Original images used for the animation can be viewed here

HaLRGB image www.flickr.com/photos/terryhancock/49381291587/in/photost...

Hubble Palette www.flickr.com/photos/terryhancock/49386215066/in/datepos...

For some scary summer fun, and with a nod to it being Shark Week on Discovery Network, I shot the Shark Nebula (LDN 1235) in Cepheus. It was first light with my new ASI2600MC Pro cooled astro camera, used with an Orion ED80T (f/6) carbon fiber triplet refractor right from my back yard in Bend, OR. I did not use any filters for this image. The image consists of 123 exposures of 5 minutes each, for a total of 10.25 hrs of integration (this thing is faint)! Light frames and calibration frames were stacked in Deep Sky Stacker, and the combined image was processed using Photoshop and Topaz Denoise AI, and a few of Annie's Actions. This is a first swipe at processing Celestial Jaws. He needs work, but I'll save that for another day.

------------------------------------------------------

• Sky-Watcher BK P2001 with TS Optics 2" Dual Speed Focuser

• EQ6-R Pro

• ZWO ASI1600MM-Pro

• Baader Hα 7nm: 16x600s

• Baader OIII 8.5nm: 16x600s

(total integration 5.3h)

• -20° sensor temp., Gain 139 (UG)

• Baader MPCC Mark III coma corrector

• 60x240 guide scope, ZWO ASI290Mini guide cam

Captured with ZWO EFW, ZWO EAF, ZWO ASIAIR, Pegasus Astro Powerbox

Saint Petersburg, Russia. Red light pollution zone, balcony

IC1396, top image 40 minutes of exposure with Canon T6i and 85mm lens. Bottom image, 40 minutes of exposure with modified Canon 60D and William Optics RedCat 51mm. Images processed with Photoshop.

This is an open star cluster in the constellation Scorpius. It was first recorded in 130AD by the Greek Astronomer Ptolemy and is the southern most Messier object.

Takahashi TAO-150B

FLI 16200 (scale 1.1")

AP 1600GTO Abs Encoders

Data from Deepskywest El Sauce Observatory (Rio Hurtado, Chile)

R (22x5min)

G (17x5min)

B (20x5min)

L (29x5min)

Total Integration = 7.3hrs

Pixinsight:

Bias/Dark/Flat/CC

LocalNorm/Drizzle/Resample 50%

ChannelCombination RGB

PCC

Lum / Deconvolution

Delinearize

ChannelCombination Lum on RGB

Photoshop:

Minimum Filter (star reduction)

Curves/Saturation

Le condizioni meteo, nel periodo autunno-inverno non sono favorevoli per l'astrofotografia, soprattutto quando si è costretti ad acquisire tante ore di integrazione.

Mi ero dedicato alla "Nebulosa Mago"

(Sh2-142) associata all'ammasso aperto "NGC7380", ma non ho avuto la possibilità di acquisire le tante ore necessarie quando si utilizzano filtri a banda stretta.

Questa volta però ho pensato di unire insieme anche l'acquisizione fatta il mese precedente con un altro telescopio (Scopos TL805). Forse non ho aggiunto dettagli ma un pò di SNR l'ho guadagnato, ottenendo un'immagine gradevole e recuperando un discreto segnale debole Ha.

__________

The weather conditions in the autumn-winter period are not favourable for astrophotography, especially when you are forced to acquire many hours of integration.

I had dedicated myself to "Wizard Nebula"

(Sh2-142) associated with the open cluster "NGC7380", but I did not have the opportunity to acquire the many hours necessary when using narrow-band filters.

This time, however, I thought of combining the acquisition made the previous month with another telescope (Scopos TL805). Maybe I did not add details but I gained a bit of SNR, obtaining a pleasant image and recovering a fairly weak signal Ha.

______________

Optics: APO Refractor Askar 103APO + 0.6X and Scopos TL805+0.8X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 4 (scala Antoniadi)

Filter: Narrowband Optolong L-eNhance 2"

-85x300s 121gain /26 dark /21 flat / 18 darkflat /100 bias (with Scopos TL805+0.8X)

-69x300s 121gain /26 dark /21 flat / 18 darkflat /100 bias (with Askar 103APO)

t° sensor: -10°C

Date: 29/10/2024, 03+16/11/2024, 10+16/12/2024

Integration: 12h 50min

Temperature: 6°C (media)

location for : Biancavilla -Catania-(Italy) 515m slm

Acquisition: NINA, PHDGuiding

Processing: DSS, SIRIL, PS, GraXpert.

* Setup:

Telescope: Refractor Orion ED80

Focal Length: 600mm

Camera: ZWO ASI178MC-C

Mount: HEQ5

Exposure: 3.5 hours (subs 180s) bin1x1

Andromeda is the closest spiral galaxy to our galaxy, the Milky Way. It is approaching us and will collide with the Milky Way in about 2 billion years.

Takahashi FSQ-106ED with Focal Reducer (f/3.6)

FLI PL16803

L: 27x10m

R: 31x10m

G: 29x10m

B: 25x10m

Total Integration = 18.7h

Pixinsight

RGB: CC / LN / Drizzle / MMT / DBE / RGB Combo / ArcSin / StarXterminator to Rescreen non-ArcSin Stars

L: CC / LN / Drizzle / MMT / DC / HT / HDR / CT / LRGB

Photoshop

ColorEfex DetailExtractor / Curves / Sponge / Dodge / Vibrance

Data from Telescope.Live

The dark nebula Barnard 37 on the left side of the image is flanked by an entourage of reflection nebulae, most notably IC 447 at lower right which connects to a smaller reflection nebula IC 446 via another trail of dust, LDN 1607.

The pair of reflection nebulae at lower left are NGC 2245 and 2247.

IC447 is approximately 1 light year in largest dimension.

This region is located in the constellation Monoceros which borders Gemini and Orion during the winter months in the Northern Hemisphere.

Capture info:

Location: SkyPi Remote Observatory, Pie Town NM US

Telescope: Orion Optics UK AG14 (F3.8)

Camera: QHY 268M

Mount: 10 Micron GM3000

Data: LRGB 6,6,6,5 hours approximately.

Processing: Pixinsight

NGC 1499 a.k.a. California Nebula

...........................................................

Discovered in 1884, NGC1499 is a hydrogen emission nebula which can be found at about 1500 light-years from Earth, in the constellation Perseus, on the Orion arm of the Milky Way. Stretching over a length of 80-100 light years, the California nebula received this name under which it is best known for its shape that more or less resembles the American state of California. The California Nebula is an extremely popular target in terms of astrophotography, images with this target being easy to take with relatively simple equipment. Being an emission nebula, the use of a narrowband filter is highly recommended for better results.

Equipment and settings:

Mount: Skywatcher EQ6R

Telescope: Skywatcher 72ED Evostar

Camera: ASI 533MM Pro

Filters: SHO Astrodon 5nm

Integration: 13h15’

Edit in Pixinsight.

Location: my Bortle 6+ backyard

False color narrow band image of the Rosette Nebula in Monoceros (The Unicorn). This nebula has nice strong emission lines in hydrogen-alpha, doubly ionized oxygen and sulpher. I took this image in my backyard in December, 2013.

Details: NP127is at f4.1; Atik 383L+ at -18 deg C; Orion EQ-G mount;TS OAG; Astrodon 3nm filters: Ha;SII;OIII.

Close Encounter

Interplanetary Travel

Youtube: "4K" Road Trip in Tunisia - Visiting Tunisia "2019"

Camera: Canon EOS Kiss X7i

Photograph by Yusuf Alioglu

Location: Outer space (space)

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------------------------------------------------------

• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• Astronomik L: 24x300s bin1 gain 0

• Astronomik RGB: 47x300s bin2 gain 125

(total integration 5.9h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

Sh2-155 was first noted as a galactic emission nebula in 1959 in the extended second edition of the Sharpless catalogue.

The name "Cave Nebula" was coined for this object by Patrick Moore, presumably derived from photographic images showing a curved arc of emission nebulosity corresponding to a cave mouth.

Sh2-155 is a diffuse nebula in the constellation Cepheus, approximately 2,400 light-years away from Earth.

Image captured over 4 nights; 2021-10-01 to 2021-10-07.

17 hours and 20 min total integration

Ha subs 24 * 1,200sec = 8 hours

OIII subs 13 * 1,200sec = 4 hours 20 minutes

SII subs 15 * 1,200sec = 5 hours

Imaging Equipment:

SharpStar 140PH Triplet 910mm focal length

Mesu 200 MKII,

ZWOASI2600MM Pro camera

3nm Ha, OIII & SII filters

English below

Nuova elaborazione di LDN673 pubblicata qualche giorno fa.

Somma di pose guidate da 10 minuti per un'integrazione di 21 ore e 30 minuti. Telescopio newton 150/600 con correttore Tecnosky 0.95x, camera Tecnosky Vision 571C, montatura Eq6-R Pro, elaborazione Pixinsight.

New processing by LDN673 published a few days ago.

Sum of 10-minute guided exposures for an integration time of 21 hours and 30 minutes. 150/600 Newtonian telescope with Tecnosky 0.95x corrector, Tecnosky Vision 571C camera, EQ6-R Pro mount, Pixinsight processing.

SH2-132, known as The Lion Nebula, is a rich Hydrogen Alpha, Oiii region with star clusters, emission nebulae, and dark dust regions. Located in the southern portion of the constellation Cepheus, it is roughly 10,00 light-years away.

I spent the last three nights imaging the Lion Nebula and another target (in between clouds) using the Plan mode in ASIAir. I used the William Optics FLT132 with the FLAT8 reducer (0.7x) and it just about cover most of the nebula.

I used the ZWO ASI2600MC Pro with the Antlia ALP-T 5nm dual band filter. I think I managed to get more detail than I did before with the FLT91, so I'm happy with this image. Unfortunately the weather forecast is now cloudy for the next week+, so I've decided to process what I have (over 11 hours) and publish it.

Processed with PixInsight and Affinity Photo 2.

See SHO without stars here: flic.kr/p/2q7qVN1

More acquisition details and other versions in Astrobin: astrob.in/1sqlxz/0/

Thanks for looking!!

Clear Skies

Eduardo

M31 Andromeda Galaxy with 4.5 Hours with 6 Min Subs Imaged from ANZA CA Imaged 10/7/2007

After stacking and editing the North American nebula starts to shine through

Red sunset at the Eyjafjallajökull.

credit: fridgeirsson

Three of the most beautiful objects in the sky framed into a single photo. Alnitak is one of the three stars that make up the belt of Orion. Hiding near her are two very nice emission nebulae breaking out of the surrounding dust and gases.

Takahashi TAO-150B

FLI 16200 (scale 1.1")

AP 1600GTO Abs Encoders

Data from Deepskywest El Sauce Observatory (Rio Hurtado, Chile)

Ha (14x15min)

L (21x5min)

R (24x5min)

G (19x5min)

B (17x5min)

Total Integration = 10.3hrs

Pixinsight:

Bias/Dark/Flat/CC

LocalNorm/Drizzle/Resample

ChannelCombination RGB

PCC

H combined with L in PS using masks

ChannelCombination HL on RGB

Photoshop:

ColorEfex Detail Extractor

Local adjustments with Burn/Dodge/Sponge tools

The last image from my Esprit 100 telescope - Barnard 22 in Taurus. A cool space blob, if you will. Part of the larger Taurus Molecular Cloud, this irregular object also houses some reflection nebula: IC 2087 (the jet in its center), Bernes 1977, and GN 04.39.1. There are also a few small galaxies in the lower left quadrant of the image.

- Location: Remote Observatory (Bortle 1, SQM 21.99) near Fort Davis, TX

- Total Exposure Time: 36 Hours

Equipment:

- Scope: Esprit 100ED w/ 1x Flattener

- Imaging Camera: QHY 268M

- Filters: Chroma LRGB (36mm)

- Mount: Astro Physics Mach1GTO

- Guidescope: SVBony 50mm Guidescope

- Guide camera: ASI 120mm mini

- Focuser: Moonlite Nitecrawler WR35

- Accessories: Pegasus Ultimate Powerbox v2, QHY Polemaster, Optec Alnitak Flip Flat

------------------------------------------------------------

Software:

- N.I.N.A for image acquisition, platesolving, and framing

- PHD2 for guiding

- PixInsight for processing

-------------------------------------------------------------

Acquisition:

- L: 372 x 3m

- R: 120 x 3m

- G: 118 x 3m

- B: 117 x 3m

- All images at Gain 56, Offset 25 (Readout mode 1) and -5C sensor temperature

- 20 flats per filter

- Master Dark, Flat & Bias from Library

- Nights: 12/19, 12/20, 12/23-12/25, 12/27/22

-------------------------------------------------------------

Processing:

- WeightedBatchPreProcessing for calibration

- StarAlignment and ImageIntegration for stacking

RGB Processing (apply to each master):

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- StarAlign G and B to R

- ChannelCombination to combine into linear color image

- DynamicBackgroundExtraction

- SpectrophotometricColorCalibration

- BackgroundNeutralization

- StarAlign to Luminance

- Duplicate and StarXterminator to save RGB stars and create starless

- HistogramTransformation x3 for stretch

- NoiseXterminator x2 at full and 3/4 strength with stretched luminance mask for noise reduction

Luminance Processing:

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- HistogramTransformation for stretch

- NoiseXterminator x2 with same luminance mask as before for noise reduction

- HistogramTransformation for slight stretch

- LocalHistogramEqualization for slight detail push

- Slight UnsharpMask for sharpening

Combine Luminance and RGB:

- LRGBCombination to add luminance to RGB

- MultiscaleMedianTransform for chrominance noise reduction

Further Processing:

- CurvesTransformation for saturation boost

- Slight SCNR green

- HistogramTransformation x3 to stretch RGB stars

- Invert -> SCNR green -> invert to remove green from rgb stars

- HistogramTransformation to stretch luminance stars to approximately the same as RGB stars

- LRGBCombination to combine luminance and RGB stars

- PixelMath to combine stars and starless nebula image

- ColorSaturation to saturate brown

- ACDNR for chrominance NR

- Various CurvesTransformations and ColorSaturation for color balance

- DynamicCrop to remove edges

- Save and export

The North America Nebula (NGC 7000 or Caldwell 20) is a Hydrogen II emission nebula in the constellation Cygnus. The shape of the nebula resembles that of the continent of North America, complete with a prominent Gulf of Mexico. (upper right portion of image)

The Pelican Nebula (also known as IC 5070 and IC 5067) is a Hydrogen II emission region associated with the North America Nebula. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name. (center of image below North America Nebula)

Image captured from Bortle 1 skies in Grasslands National Park, SK

2020-08-22

RGB subs = 28*180 seconds (1 hour 24 min)

Ha = 22* 300 seconds (1 hour 50min)

ZWOASI071MC Pro camera

Canon EF 70-200mm f/2.8L IS II USM @ 135mm

AZ-GTi Mount

C11 EdgeHD in HyperStar mode

f/2 Baader H-alpha, OIII; total exposure: 4,8 h

Sony a7s (a)

Spicheren, France

#DeepSky #DeepSpace #California #Nebula #NGC1499 #Hyperstar

● Target data:

► M1 | NGC1952

► Stellar coordinates:

-Ra: 05h 34m 31.94s

-DEC: +22° 00′ 52.2″

► Distance: 6500±1600 ly

► Constellation: Taurus

● Gear:

► Telescope: SW 200/1000 F5

► Mount: IOptron CEM60-ec

► Camera: Canon EOS 700d astrodon

► Autoguiding: guidescope 50mm microspeed + ZWO asi

120mm

► Other optic(s): Baader mpcc mk3 coma corrector

► Filter(s): Astronomik CLS CCD eos clip

● Softwares:

► Preprocessing: PixInsight

► Autoguiding: PHD guiding 2

► Processing: PixInsight

● Data acquisition:

► 45 X 200 sec, total 2H30

► ISO 800

► Date: 12/02/2021

www.astrobin.com/268715/Z

New setup at the observatory with the Astro-Physics Mach1 GTO and the Altair Astro 250 RC10 truss.

Mach1 seems overloaded and needs a replacement for this fixed location. Anyway, the performance is quite amazing.

Look at astro.carballada.com/galaxies-season-is-coming/

Another topic to considere is that with the ASI1600 working at 0.5 arc/px I am wondering if a 16200 sensor could solve the problem :D

Also designated Sharpless 171, this is a young irregular emission nebula and star forming region of about 40 light-years across, located some 3,300 light-years away at the edge of a giant molecular cloud toward the northern constellation Cepheus.

Cosmic pillars of cold molecular gas and clouds of dark dust lie within. Powering the nebular glow are the young, hot stars of the Berkeley 59 cluster. This includes one of the hottest stars discovered in the vicinity of our Sun, namely BD+66 1673, an eclipsing binary system containing a very bright star with a luminosity ~100000 times that of the Sun.

Its been a while since my last astro image due to short summer nights, the mainly bad weather since then and work and other commitments, but good to get posting again.

The data for this image was gathered a few months back over 6 separate nights during June through August 2012, just took a while to get to the processing!

Tech details below:

Skywatcher MN190 (@F5.3)

Mount - EQ6

Starlight Xpress SXVR-H18 @ -20 degs

QHY5 PHD guiding, guidesope Celestron ED80

Ha - Baader 7nm

- 20x15min bin1x1

S2 - Baader 8nm

- 16x15min bin2x2

O3 - Baader 8nm

- 16x15min bin2x2

Total time 13h

HST mapping: Red - SII, Green - Ha, Blue - OIII

Captured in Nebulosity 2

Calibration, stack and DDP in Images Plus

Curves + all other processing PS CS3

Details & MakingOf: angeknipst.tiesing.de/2018/theres-something-out-there/

Source image: Chris Mock / www.flickr.com/photos/chris_mock/

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Omega Centauri (ω Cen or NGC 5139) is a globular cluster in the constellation of Centaurus. Remotely captured from Carnegie Institution's LCO.

Sharpless 2-132, the Lion Nebula, is a dim emission nebula on the border of Cepheus and Lacerta. Imaged in narrowband from SRO in California:

Scope: FSQ-106ED

Mount: Paramount ME

Camera: QSI683

Filters: Astrodon 5nm Ha, OII, SII

Guiding: QSI OAG + Lodestar

Image scale: 2.094 arcsec/pixel

Exposures: 27x1800s Ha, 12x1800s OIII, 19x1800s SII (17 hrs)

Processing: PixInsight 1.8

This is a reprocess of my latest wide field process of the Rosette Nebula otherwise known as Caldwell 49 using legacy data from Grand Mesa Observatory’s system 1a the William Optics Redcat together with a QHY16200A Monochrome CCD camera with Optolong Narrowband Filters. In this Hubble Palette version the H-Alpha is mapped to green, SII is mapped to red and OIII is mapped to the blue channel. While the colors in this image are not the true colors, the narrowband filters used in the making of this Hubble Palette image reveal much more of the hidden gasses not visible in a broadband image. In this new version I used the naturally colored stars from the LRGB data

Captured over 4 nights in November 2019 for a total acquisition time of 17.8 hours.

View in High Resolution www.flickr.com/photos/terryhancock/49058519297/in/datepos...

Technical Details

Captured and processed by: Terry Hancock

Location: GrandMesaObservatory.com Purdy Mesa, Colorado

November 1, 2, 3, 4th 2019

HA 430 min 43 x 600 sec

OIII 340 min 34 x 600 sec

SII 300 min 30 x 600 sec

Narrowband Filters by Optolong

Camera: QHY16200A

Gain 0, Offset 130 Calibrated with Dark and Bias Frames no Flat.

Optics: William Optics Redcat 51 APO @ F4.9

EQ Mount: Paramount ME

Image Acquisition software Maxim DL6

Pre Processing in Pixinsight

Post Processed in Photoshop CC

Starnet (star removal)

This is something a little different for me. I typically do wide-field astrophotography, but had been thinking about trying to capture Orion's Belt and the nebula in the same image... I never dreamed you'd be able to see the horsehead nebula and the flame nebula (which I didn't even know existed until I did this) in the same shot! So fun, but man it takes a lot patience!

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• Sky-Watcher BK P2001 with TS Optics 2" Dual Speed Focuser

• EQ6-R Pro

• ZWO ASI1600MM-Pro

• ZWO L: 180x120s

• ZWO R, G, B: 60x120s bin2

(total integration 8h)

• -20° sensor temp., Gain 0 (HDR)

• Baader MPCC Mark III coma corrector

• 60x240 guide scope, ZWO ASI290Mini guide cam

Captured with ZWO EFW, ZWO EAF, ZWO ASIAIR, Pegasus Astro Powerbox

Saint Petersburg, Russia. Red light pollution zone, balcony

M101 with one of the closest Supernova in the past decade. It is the bright blue dot in the outermost arm.

LRGB 100x5m 8.3hrs

Taken without light pollution filters in New Orleans under Bortle 8 skies.

Giant Star on the Edge of Destruction

Interplanetary Travel

Youtube: "4K" Road Trip in Tunisia - Visiting Tunisia "2019"

Camera: Canon EOS Kiss X7i

Photograph by Yusuf Alioglu

Location: Outer space (space)

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