Aberkenfig, South Wales

Lat +51.542 Long -3.593

Skywatcher 254mm Newtonian Reflector, Nikon D780 at prime focus with Skywatcher Coma Corrector, EQ6 Syntrek Mount.

Imaging session commenced 21:49 UT.

26 x 20s at ISO 2000

14 x 25s at ISO 2000

18 dark frames & 18 flats.

Processed with Deep Sky Stacker and levels adjusted with Lightroom & G.I.M.P.

A fairly reasonable outcome for short exposures. Perhaps a little bit grainy in places with some of the fainter nebulosity being coaxed out in post processing.

A wide view of a section of the beautiful constellation of Orion, imaged in mid Summer in the Southern Hemisphere. Photographed with a standard (unmodified) mid-range Nikon D7000 DSLR camera and Nikkor 60mm f/2.8 ED lens (stopped down to f/4 for optimal optical performance).

This widefield view around Orion's Belt includes several beautiful Deep Sky Objects including The Great Nebula in Orion (M42), The Horsehead Nebula (IC434) and Barnard's Loop.

About Barnard's Loop:

Barnard's Loop (also known as Sharpless 2-276) is a huge Nebular shell, about 1,600 light-years away in the constellation Orion. It envelops a large part of the Orion Complex. Barnard's Loop is thought to have been formed by a series of Supernovae that occurred two to three million years ago. The ionized shell is part of an even larger molecular Hydrogen cloud, and is kept luminous by a group of hot young stars.

About the image:

This is the first test image that I shot with my iOptron SkyTracker Pro. I decided to get a SkyTracker so that I can use a regular old camera and lens to photograph wide angle shots of the sky while I'm busy imaging with my Telescope. It is a fairly inexpensive way to do long exposures of the night sky with standard photographic equipment that you already have.

Location:

The rural dark skies of the African Bushveld in the Waterberg, Limpopo Province, South Africa (on a very warm Summer's evening).

About the Star Colors:

You will notice that star colors differ from red, orange and yellow, to blue. This is an indication of the temperature of the star's Nuclear Fusion process. This is determined by the size and mass of the star, and the stage of its life cycle. In short, the blue stars are hotter, and the red ones are cooler.

Gear:

iOptron SkyTracker Pro.

iOptron Counterweight Kit.

Manfrotto 055PRO Tripod.

Manfrotto 486RC2 Ball Head.

Nikon D7000 DSLR (Unmodified).

Micro-Nikkor 60mm f/2.8D ED Lens.

Hahnel Giga T Pro II Wireless Timer Remote.

Tech:

Lights/Subs:

14 x 60 sec. ISO 3200 NEF Files (f/4).

Calibration Frames:

40 x Bias

30 x Darks

Pre-Processing and Linear workflow in PixInsight,

and finished in Photoshop.

Astrometry Info:

View the Annotated Sky Map for this Astrophoto.

RA, Dec center: 84.7497748101, -2.68699703478 degrees

Orientation: 10.6655683104 deg E of N

Pixel scale: 38.7303715915 arcsec/pixel

View this image in the World Wide Telescope.

Martin

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The Great Orion Nebula ..Messier 42, Messier 43, NGC 1976 in the Orion Constellation

Links:

500px.com/MikeODay

photo.net/photos/MikeODay

Details:

The Great Orion Nebula ( Messier 42, NGC 1976 )

RA 5 36 15, DEC -5 26 31 ( 2016.9 )

Skywatcher Quattro 10" f4 Newtonian telescope

Skywatcher AZ Eq6 GT Mount

Orion Short Tube 80mm guide scope & auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector & no filter

Nikon D5300 (unmodified)

Field of view (deg) < ~ 1.35 x 0.90

long exp noise reduction on

45 x 120 sec ISO 400

15 x 60 sec ISO 100

varioius short exposures 3 to 15 sec to extend dynamic range for bright stars

Pixinsight & Photoshop

28th November 2016

Taken with an iOptron SkyTracker Pro in Panoche Valley, CA

This dramatic image peers within M42, the Orion Nebula, the closest large star-forming region. Using data at infrared wavelengths from the Herschel Space Observatory, the false-color composite explores the natal cosmic cloud a mere 1,500 light-years distant. Cold, dense filaments of dust that would otherwise be dark at visible wavelengths are shown in reddish hues. Light-years long, the filaments weave together bright spots that correspond to regions of collapsing protostars. The brightest bluish area near the top of the frame is warmer dust heated by the hot Trapezium cluster stars that also power the nebula's visible glow. Herschel data has recently indicated ultraviolet starlight from the hot newborn stars likely contributes to the creation of carbon-hydrogen molecules, basic building blocks of life. This Herschel image spans about 3 degrees on the sky. That's about 80 light-years at the distance of the Orion Nebula. via NASA ift.tt/2efmMkj

My first attempt at astrophotography tonight, so excited!

Just got my new iOptron Skyguider tonight.

Big learning curve exposing the image and still learning.

Very pleased with my results after polar aligning mount. My neighborhood is severely light polluted with a Bortle scale between 6 and 7. Total of six stacked images @ 60 sec each.

Camera Olympus EM-1 micro fourthirds

Lens Olympus 40-150 2.8 Pro @ 150mm

Tele Converter Olympus MC-20

Image editors, DxO PhotoLab & Adobe PhotoShop CS3

Two incredible nebulae in the most famous constellation in our sky: Orion!

Local: Brazil/Piracicaba

Aquisition: 505 frames (HDR include) in LRGB.

Telescope: FótonAstro Astropgraph 8" F4

Camera: ZWO ASI294mm Pro

Filters: Antlia V-Pro Series

I'm gearing up for a great season of astrophotography in the clear, dry, cold, high altitude skies of the Eastern Sierra. This is one of my first shots take with my new setup. It's the Orion Nebula (also known as Messier 42, M42, or NGC 1976) below Orion's belt.

There are ways I can improve these images... capture multiple exposures and use astronomy stacking programs to use and combine the sharpest shots, to show more detail, but for a first try on a night with ample light pollution from the moon, I'm very encouraged by the results.

Messier 41- Imaged with narrowband filters - TMB105 F6.2 Telescope

This new view of the Orion Nebula shows embryonic stars within extensive gas and dust clouds. Combining far-infrared observations from the Herschel Space Observatory and mid-infrared observations from NASA's Spitzer Space Telescope, the image shows newly forming stars surrounded by remnant gas and dust in the form of discs and larger envelopes.

Data from the PACS instrument on Herschel at wavelengths of 70 and 160 microns (a micron is a millionth of a metre) are shown as green and red, respectively, and reveal emission from the disks and envelopes of the very youngest protostars. Two Spitzer instruments, IRAC and MIPS, were used to obtain images of the same region at 8 and 24 microns, which are combined here as blue. These wavelengths show emission from the hotter regions of discs around somewhat older stars.

The region shown covers roughly 25x25 arcminutes on the sky or 3x3 parsecs at the distance to Orion.

Credits: ESA/PACS/NASA/JPL-Caltech/IRAM

Stack of 25 shots at 200mm focal length and F5.6

10 x 120s RGB @ 1000ISO

15 x 180s H-alpha @ 4000ISO.

D810A + Sigma 120-300mm F2.8 + NEQ6

Shooting conditions were dry and dusty on the ground, very clear dark skies, a bit of wind and mild to no seeing.

I replaced the red channel from the RGB images with the H-alpha, but still can't figure out how to trick Nebulosity3 into adding the H-alpha to the RGB ...

I have asked for a free PixInsight trial and will try this image again.

The stars near the edge of the frame look elongated because of how the lens displays problems when shooting through the IR645 filter at F5.6 ... something like F7.1 would be better, but I'd loose so much light that for an unguided setup like this it becomes really problematic !

A nebula for all mankind.

Despite having an interest in astronomy as a kid, it wasn't until I was in my thirties that I learnt you could actually see a deep space nebula with the unaided eye. This nebula appears to the naked eye to be the middle 'star' in Orion's sword.

It would be some years later that I was gifted a small telescope and would then be able to reveal some of the astronomical beauty hidden within the Orion nebula.

This is a stack of nine images. Whilst the Hubble Telescope - and ground-based astrophotographers more skillful than I - can take infinitely more detailed images of this nebula, I kinda like this "everyman's edition" taken with relatively simple equipment, revealing that Deep Space is not really that far away from an amateur's grasp.

9 x 300sec (45min total)

Altair Astro 80ED Refractor with 0.8x flattener/reducer

Altair Astro Hypercam 183C PRO (Gain 400, Offest 48, Bin 1x1)

SkyTech LPRO Max filter

Processed with Deep Sky Stacker and Affinity Photo

Experimenting with some short exposure astrophotography, hoping it provides inspiration for beginners who may not have the budget for a tracking mount yet. This image was created by stacking multiple 2 second exposures taken with a 70mm refractor and 10 year old Canon 1100D on a static tripod.

200 x 2 seconds + 30 darks, stacked using Deep Sky Stacker.

Yes there is some texture in the background because you'll always get noise when you try to stack images that don't have a lot of data in them, but as a beginner I would have been so happy to have achieved these results, and to be honest I'm pretty happy with how this turned out now!

If you want to see the You Tube video where I talk you through this process, click here:

youtu.be/b_ArweQvE6o

Just a slight enhancement of my previous post exploiting the enhanced red response of my modified DSLR to the H-Alpha component in emission nebula.

Inside the Orion Nebula

Credit: Giuseppe & Giovanni Vincenzo Donatiello

Short exposure with some of the structures and stars inside the nebula, otherwise obliterated with overexposure. The multiple stars Theta1 (Trapezium) and Theta2 with various easily identifiable nebular variables are shown.

This shot was not planned and is just a test, however it offers many ideas:

- A Maksutov, although not very "fast" can be used without problems even in deep-sky, indeed it can be very useful with compact objects.

- The recent cameras are more performing even without any modification in astrophotography and really usable at high ISO (3200-6400).

- Interested and even useful photos can be taken without too many technical complications. Here, 30-second unguided exposures were used with the EQ3-2 mount.

Crop of Messier 42 & Messier 43 (The Great Nebula in Orion)

Trying out the Skywatcher Star Adventurer Pro tracker.

Polar alignment with QHY PoleMaster.

I've fitted a ZWO miniscope and ASI120 mm s guide camera to the L bracket so will be able to guide in RA in the future. Didn't set that up for this image.

Fairly easy to adjust tracking alignment - some vibration and lost subs if I moved too close or walked near mount - may need a heavier tripod than my Manfrotto 055 - at least for backyard.

Taken with a modified Canon 80D with an IDAS D1 light pollution filter and a Samyang 135mm lens wide open at f/2.

40 x 50 second subs at ISO100.

Light pollution measured at 19.44 mag/arcsec2 - fairly poor for my site - maybe snow on the ground has affected that.

Session terminated by some cloud moving in - I like the idea of letting this tracker run for hours - my AstroTrac tt320x ag could only run for about 100 minutes before reaching end of timing screw.

90 x flat frames

90 x dark frames

90 x bias frames

Image processed in PixInsight 1.8.6 and Photoshop 2019 CC

Neu bearbeitete Aufnahme des Sternbilds Orion aus dem Jahr 2016, bearbeitet mit Astro Pixel Processor & Photoshop CC 2018 (Canon EOS 1000Da, Canon EF 40 mm f/2.8 STM, F/4, ISO-800, 12x7 Min. auf Astrotrac)

This dramatic image offers a peek inside a cavern of roiling dust and gas where thousands of stars are forming. The image, taken by the Advanced Camera for Surveys (ACS) aboard NASA/ESA Hubble Space Telescope, represents the sharpest view ever taken of this region, called the Orion Nebula. More than 3,000 stars of various sizes appear in this image. Some of them have never been seen in visible light. These stars reside in a dramatic dust-and-gas landscape of plateaus, mountains, and valleys that are reminiscent of the Grand Canyon. The Orion Nebula is a picture book of star formation, from the massive, young stars that are shaping the nebula to the pillars of dense gas that may be the homes of budding stars. The bright central region is the home of the four heftiest stars in the nebula. The stars are called the Trapezium because they are arranged in a trapezoid pattern. Ultraviolet light unleashed by these stars is carving a cavity in the nebula and disrupting the growth of hundreds of smaller stars. Located near the Trapezium stars are stars still young enough to have disks of material encircling them. These disks are called protoplanetary disks or "proplyds" and are too small to see clearly in this image. The disks are the building blocks of solar systems. The bright glow at upper left is from M43, a small region being shaped by a massive, young star's ultraviolet light. Astronomers call the region a miniature Orion Nebula because only one star is sculpting the landscape. The Orion Nebula has four such stars. Next to M43 are dense, dark pillars of dust and gas that point toward the Trapezium. These pillars are resisting erosion from the Trapezium's intense ultraviolet light. The glowing region on the right reveals arcs and bubbles formed when stellar winds - streams of charged particles ejected from the Trapezium stars - collide with material. The faint red stars near the bottom are the myriad brown dwarfs that Hubble spied for the first time in the nebula in visible light. Sometimes called "failed stars," brown dwarfs are cool objects that are too small to be ordinary stars because they cannot sustain nuclear fusion in their cores the way our Sun does. The dark red column, below, left, shows an illuminated edge of the cavity wall. The Orion Nebula is 1,500 light-years away, the nearest star-forming region to Earth. Astronomers used 520 Hubble images, taken in five colours, to make this picture. They also added ground-based photos to fill out the nebula. The ACS mosaic covers approximately the apparent angular size of the full moon. The Orion observations were taken between 2004 and 2005.

I did some different processing on my latest Messier 42 image. This time I used PixInsight to process it. The result was a little strange, but I think it turned out better than the original.

Took me several attempts to get this 3-tile mosaic working, and here is the result. Because of Christchurch's light halo close to Orion at the shooting location, I had a significant gradient across all 3 tiles which caused me troubles. Then tiny black bands screwed up with registration, and finally the usual mix of high noise floor, lack of images due to short summer nights, etc ...

But anyway it was a good exercise to prepare for a mosaic, preprocess it for RGB and Ha images, and I guess it could look worse. I can always tidy up little things here and there, but doubt I would get too much more out of the shots with my current knowledge of PixInsight. ;-)

3-tile mosaic at 120mm focal length, each is a combination of 5 x 120s @ 1600ISO in RGB and 5 x 240s @ 4000ISO through IR645 filter, all at F6.3.

La Nebulosa di Orione (anche identificata come Messier 42 o M 42, NGC 1976) è una delle nebulose più brillanti del cielo notturno. Chiaramente riconoscibile ad occhio nudo come un oggetto di natura non stellare, è posta a sud del famoso asterismo della Cintura di Orione, al centro della cosiddetta Spada di Orione, nell'omonima costellazione.

Posta ad una distanza di circa 1 270 a.l. dalla Terra, si estende per circa 24 anni luce ed è la regione di formazione stellare più vicina al Sistema solare.

Earth, Spiral Galaxy

Spacing out on Messier 42!

Canon 6D | Samyang 85mm XP

Orion Nebular Complex centered on M42

Tair-3S + Canon EOS 4000D on Avalon M-zero Obs

Data taken on winter 2020/2021

See also here: www.flickr.com/photos/133259498@N05/51033327176/in/datepo...

Im Gürtel des Orion

komplette Neubearbeitung mit Astro Pixel Processor + Photohop CC 2018

Canon EOS 1000Da, Canon EF100 f/2.8 USM Macro, f/4, ISO-1600, 62x3 Min.

Web || Blog || Twitter || Facebook || Tumblr || 500px || Vimeo || Revista Online en Flipboard

Datos: Canon 5DMII + Canon 100-400 @400mm - f/5,6 - 30 segundos - 28 fotos +dark + bias con seguimiento con la montura Astrotrac

Web de fotografía nocturna --| www.josemiguelmartinez.es

Página en Facebook--------------| Facebook

Mi revista ONLINE ----------------| En Flipboard

Orion's Sword, the region of sky below Orion's Belt includes the Orion Nebula (M42), Running Man Nebula (NGC 1977), the open cluster NGC 1981, and Iota Orionis.

Voted "Best Deep Sky Photograph" at 2010 RTMC Astronomy Expo.

HDR processing by my nephew Rob Johnson

Suggestion: View on Black, click on bighugelabs.com/onblack.php?id=4035159234&size=large&... then hit F11 key in a darkened room.

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

M42 using T1i at iso 3200 on 6" Schmidt Newtonian. Autoguide by Pictor on CGEM mount

HDR processing by Rob , 0306=13s, 0307=78s, 0304=-296s

.

Autoguider used: www.flickr.com/photos/edhiker/4017430558/

.

m42hdr20091018_Sat74_Q80.jpg

Skywatcher 150P

Canon EOS 650D

Astronomik UHC-E Clip Filter

Capture:

BackyardEOS

-Lights

--20 x 20 seconds @ ISO 800

--20 x 80 seconds @ ISO 800

--8 x 120 seconds @ ISO 800

-10 Darks per exposure length

-20 Flats

Stacking: DSS

Postprocessing: Adobe Photoshop CS5

Reprocess of flic.kr/p/qTVv67

Check out the larger size...

www.flickr.com/photos/33403047@N00/3148931727/sizes/l/

Orion is high in the sky these days, which is a good thing for astrophogotraphy as this is probably the most interesting constellation in the sky. The sword of Orion is full of big, beautiful nebulae with a colorful mix of red emission and blue reflection nebula, and some surrounding dark nebula for good measure! This being an unmodified camera (infra-red blocking filter in place) the camera picks up the blue better than the red.

This is 101 minutes of total exposures from 16 stacked shots varying in length from 31 to 1024 seconds, taken at ISO 1600 with an unmodified Canon 50D and 100-400mm lens at 400mm and f/5.6 riding piggyback on the telescope and mount for tracking. Autoguiding was with a Nexstar imager and PHD Guiding software.

20091209 - Stack of 38 exposures - 35x 10 seconds, 3x 32 seconds.

Canon T1i. 1016mm F4, 10" Meade SN-10-AT telescope, LXD75 Mount.

Added a lesser quality 30 second exposure, and 33 10 second exposures from a previous night to see if any more detail would come through.

More detail - but some sky glow too.

My second attemt on the Orion nebula, this time with an clear nightsky and the tracker proper aligned.

10x60sec exp, iso 3200, f/7.1, 400mm(70-200vr2 + 2x extender), Nikon D800.

Very early this morning, I had an epiphany, and made a big discovery.

As most of you know, I own a 10" Meade LX200 telescope. The focal ratio of the telescope is f/6.3, which puts it about 15-20 percent optically faster than a standard f/10 Schmidt-Cassegrain.

For a couple years, I've had an f/6.3 focal reducer/field flattener for a smaller f/10 8-inch Meade LX5 telescope I also own.

I decided to experiment - and in the process of doing so, I made my 10" LX200 optically faster by 50%. What does this mean?

I now have significantly more light gathering power, at a small cost. The focal length is halved from 1600mm to 800mm.

Not only that, I can shorten my exposure time by half!

This is the first result: Messier 42 - AKA The Great Orion Nebula.

10x5 seconds for the core

20x30 seconds for the outer fringes.

15x5-second dark calibration frames

30x30 second dark calibration frames

10 "T-shirt" flat calibration frames

It would've taken me about twice as long to gather the data to produce this image!

Molti fattori, positivi e negativi, sono entrati in gioco nel realizzare questa immagine della famosa Grande Nebulosa di Orione (Messier42).

Il primo fattore, negativo per tutti gli astrofili, è stato l'inquinamento luminoso perchè l'acquisizione è stata realizzata interamente dal mio osservatorio di casa, in una cittadina con inquinamento luminoso di Classe 7(scala Bortle).

Secondo fattore, negativo, la presenza massiccia di illuminazione al Mercurio (verde) anzichè al Sodio (arancione), che ha ridotto l'egregio lavoro del filtro Astronomik CLS, poco efficace a schermare la luce al Mercurio.

Il terzo fattore, positivo, è stato quello di migliorare otticamente il rifrattore che ho utilizzato.

Tutto è iniziato per caso, quando ho notato la strana forma dei dischi stellari in intra ed extra-focale.Alcuni semplici test hanno fatto capire che era presente tensionamento nella culla del tripletto cementato. Smontate le parti e trovata la causa tutto si è risolto.

A quel punto, mi ha incuriosito l'interno del tubo e mi chiedevo se i diaframmi presenti fossero ben posizionati e di numero sufficente. Raccolte tutte le informazioni e le conoscenze necessarie non è stato difficile capire che qualcosa non funzionava. Infatti il 1° diaframma riduceva l'apertura effettiva del telescopio e il numero dei diaframmi non era sufficente a ridurre al minimo l'influenza negativa anti-contrasto causata soprattutto dalla presenza di inquinamento luminoso.

Mi è bastato aggiungere altri 2 diaframmi ai 2 esistenti e riposizionarli tutti alle distanze opportune dall'obiettivo per avere un fondo cielo sufficentemente scuro con 360sec a 800iso, mentre prima non potevo andare oltre i 240sec., e un coma radiale ancora contenuto.

Esorto tutti gli astrofili, e ancor più coloro che sono costretti in zone con inquinamento luminoso, ad informarsi e testare sotto questo aspetto la propria strumentazione.

Altro fattore, negativo, è stato il non trascurabile abbassamento della temperatura nella stessa sera, anche di 5°C, e la media delle tre sere di riprese: 8C°(05/02), 10°C(06/02) e 11°C(07/02). Trovare un buon Masterdark è stato arduo!

Per ridurre al minimo la presenza di sgradevoli gradienti da inquinamento luminoso ho optato per pose da 300sec e per contro aumentare il numero di pose raggiungendo il non indifferente numero di 53 frames.

Durante l'elaborazione post-compositazione ero curioso di vedere fin dove il rapporto segnale-rumore rimanesse a favore del primo.

Non è stato facile ridurre il gradiente verde, dovuto all'inquinamento, che ha irrimediabilmente cancellato parte del segnale, ma nel complesso mi posso considerare soddisfatto e per certi versi piacevolmente sorpreso dalla profondità raggiunta, visti i fattori negativi di cui sopra.

La magnitudine limite registrata è intorno la 16° e il seeing nelle tre serate era di livello 3-2 (scala Antoniadi inversa).

____________

Ottica: Rifrattore APO Scopos TL805 80mm/f7 +filtro Astronomik CLS

Mount: HEQ5 Synscan

Modello fotocamera Canon EOS 350D DIGITAL (Rebel XT) mod. Baader ACF

Seeing 2-3 (scala Antoniadi inversa)

47x300s 800iso / 21 dark /21 flat / 9 bias

9X20s 800iso /10 dark /9flat /9bias

date 05-06-07/02/2011

Location Biancavilla -Catania-(Italy) -Classe 7(scala Bortle).

Elaborazione DSS+ PS CS3

Equipment as always: APM LZOS 130/780 with Williams Flattener and ATIK One 9.0 with Baader H-Alpha 7nm filter.

HDR of 10x10s, 10x60s, 9x600s all bin 2x2 (1:41h total)

So as I pondered my astrophotography images and thought how the challenge is always to produce heavenly bodies in the most accurate detail that our available equipment can produce: why aren't astrophotography images ever - NEVER EVER - slid?!!

So this may be a world first. This is an actual photograph of the Orion Nebula shot through my telescope, that has been slid, then slid again.

It is an accurate representation of the Orion Nebula and surrounding stars, in a pixelated sort of way. (For those of you that are super nerdy and think something is wrong, note that it is shot in the Southern Hemisphere, so it will look "upside down" to Northern Hemisphere nerds).

[There are in fact two nebulae in this image: the "big clump" is the Orion Nebula, Messier 42/M42, and the "little clump" on the right-hand-side is De Mairans Nebula, Messier 43/M43].

If you are looking at this constellation without the aid of a telescope, these nebulae appear to be the "star" in the centre of the three stars that make Orion's sword (or in Australia, we would describe it as the star in the middle of the saucepan's handle!)

I like it. It's a shot for the 21st Century. PacMan goes extra-terrestial!

---Photo details----

Stacks : 7x100sec (Hα) + 7x200sec (OIII)

Hα: www.flickr.com/photos/stormlv/7994225047/in/photostream

OIII: www.flickr.com/photos/stormlv/7994224831/in/photostream

Exposure Time : 35min

Stack program : Maxim DL v5

Stack mode : Sigma clip

Post processing : MaximDL v5 and Photoshop CS5

---Photo scope---

Camera : Atik 460EX

CCD Temperature : -5 Celsius

Filter used:

- Astrodon 5nm Hα 36mm unmounted

- Astrodon 5nm OIII 36mm unmounted

Tube : Skywatcher StarTravel-102

Type : Refractor

Focal length : 500 mm

Aperture : F/4.9

---Guide scope---

Camera : Starlight Xpress Lodestar

Guide exposure : 1 sec

Starlight Xpress Off Axis Guider

---Mount and other stuff---

Mount : Skywatcher NEQ-6

Filter wheel : Starlight Xpress

---Image details---

Objects

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--

Source : dso-browser.com/

Sony Alpha a6300

Sony FE 100-400mm f/4.5-5.6 GM OSS

400mm

ƒ/5.6

0.6s x 100

“HUBBLE PROBES THE GREAT ORION NEBULA

A NASA Hubble Space Telescope image of a region of the Great Nebula in Orion, as imaged by the Wide Field Planetary Camera 2.

This is one of the nearest regions of very recent star formation (300,000 years ago). The nebula is a giant gas cloud illuminated by the brightest of the young hot stars at the top of the picture. Many of the fainter young stars are surrounded by disks of dust and gas, that are slightly more than twice the diameter of the solar system (or 100 Astronomical Units in diameter).

The great plume of gas in the lower left in this picture is the result of the ejection of material from a recently formed star.

The diagonal length of the image is 1.6 light years. Red light depicts emission in Nitrogen, green is Hydrogen, and blue is Oxygen.

The picture was obtained with second generation Wide Field and Planetary Camera (WFPC-2), which was installed in the Hubble Space Telescope during the STS-61 Hubble Servicing Mission. The WFPC-2 includes within it optics that correct for the aberration of the telescope’s primary mirror, restoring the optical quality of images obtained with the telescope to the level that the telescope was originally designed to provide.

credit: C.R. O'Dell/Rice University NASA”

8” x 10.375”. The image is oriented per the description of its affixed caption.

Also:

hubblesite.org/contents/news-releases/1994/news-1994-10.h...

Credit: HUBBLESITE website

esahubble.org/images/opo9410a/

Credit: ESA/Hubble website

Messier 42 / M42 / NGC 1976 / The Great Orion Nebula

Messier 43 / M43 / NGC 1982 / De Mairan's Nebula

NGC 1973 / NGC 1975 / NGC 1977 / The Running Man Nebula

The Great Orion Nebula, a giant interstellar cloud of gas and dust, is the closest region of massive star formation to us, at a distance of 1,300 light-years. It is a small part of the much larger Orion Molecular Cloud Complex. The nebula is a vast stellar nursery 24 light-years across, where new stars are being born.

Observations have revealed about 700 stars in various stages of formation. The Hubble Space Telescope recently discovered over 150 protoplanetary disks within the Orion Nebula. These disks are considered to be newborn stars in the earliest stage of solar system formation.

The red/pink hue is a result of H-alpha emission from ionized hydrogen, and the blue is caused by reflected radiation from massive type O stars. The young Trapezium Cluster, visible at the core of the nebula, is responsible for the illumination (and future destruction by photoevaporation) of the cloud.

Total integration: 1 hour 35 minutes (95 minutes)

180 x 30 seconds ISO800

30 x 10 seconds ISO800 (for the core)

Location: Burns Lake Campground in Big Cypress National Preserve near Ochopee, FL

SQM: 21.65 mag/arcsec^2 (Bortle 4)

Camera: Canon T3i (stock/unmodified)

Average camera temperature: 100 F (38 C)

Telescope: Explore Scientific ED80 f/6.0 Apochromatic Refractor (with ES field flattener)

Mount: Orion Sirius EQ-G (unguided)

Processing software: PixInsight, Paint.NET

This was imaged on 22/11/14 in a very short period of clear weather here. Orion is in a very light polluted part of the sky for me but it beckoned and I had to have a go! My first real image of this iconic nebula. The blue running man nebula is visible above left. Wish I could have got more data but things began to deteriorate!! Modified Canon 1000D and ED80.

8x100Sec

8x20Sec

M42 - Messier 42. This is about as good as I can PP with my current astro imaging skill set. It's completely different to post process on normal terrestrial images. Details - image taken with Lightbuckets (www.lightbuckets.com) LSB002 widefield scope. Combination of:

6 x 120 sec L (Luminance) subs

4 x 120 sec R (Red) subs

4 x 120 sec G (Green) subs

4 x 120 sec B (Blue) subs

stacked in Maxim DL 5 (not a cheap program!). Processed using the digital development filter and some screen stretch.

I had some extra subs from a different night for the core section:

6 x 6 sec L (Luminance) subs

4 x 6 sec R (Red) subs

4 x 6 sec G (Green) subs

4 x 6 sec B (Blue) subs

I had some H alpha subs as well but decided not to include them. Both shots manually combined in Photoshop (framing was slightly out between both shots so I had to manually align them in Photoshop). Some curves and levels done too, with some sharpening and very slight noise reduction using Neat Image Pro + on a duplicate layer set to 10% opacity so as to not smoothen things out too much.

La nebulosa de Orión es una de las más brillantes en el cielo y puede ser divisada a simple vista.

(ISO 2.500)

WEB -| www.josemiguelmartinez.es

When I was in Cyprus, I had a go at deep space astrophotography. I borrowed a tamron 200-500mm lens from a friend to try this. It was a cold, clear night with good visibility so I spent over an hour capturing this image of Orion Nebula (also known as M42). I am quite pleased with the end result - the amount of detail captured was much better than I expected. The colours are as captured by the camera. I still have a lot to learn in this area, but I can't wait to try it again.

I am running an astrophotography workshop in Cyprus this summer. It'll be for capturing wide angle night skies, and nightscapes but we may even get a chance to try stuff like this if the group is up for it. You can find more information and book a place on my website: esentunar.com/workshops

Messier 42, the Great Orion Nebula in a quick LRGB thru a hole in clouds.

This is a rewarding, yet challenging target. So bright it burns thru at 5 minute subs, yet so faint you can't get the dark fuzzies with anything less than 30 minute sub-exposures.

3*5min RGB + 2*5min luminance.

Canon 60D unmodded

Canon 400mm f5.6L

Astrotrac

ISO 3200-4000

@ f 5.6 36 x 150 seconds, 35 x 120 seconds

12/19/2012

I and other western WA residents are so blessed to have two consecutive clear days and nights in this very January, which usually is full of rainy or at least cloudy days. For some reason my autoguider is not working well and hence my photos are blurred. Nevertheless, you can see the Orion Nebula, which is rare given the geographical location of Seattle and awful atmospheric conditions.

Askar FRA400 f/5.6

ZWO ASI585C OSC (Offset:8 / Gain:300 HCG)

360 x 10 sec. subs (1hr.)

Data capture using NINA.

Processed in Astro Pixel Processor and Affinity Photo

ED80 480mm * 0.8x (f/4.8), 27 x 30 s, ISO6400, Canon T3i.

Hugin (alignment) + ImageMagick (stacking) + GIMP (levels), Debian GNU/Linux.

Lugar / place / lieu : Guárico, Venezuela.