View allAll Photos Tagged trifidnebula
The Trifid Nebula you never get sick of seeing.
A beautiful example of the combination of cold blue reflection nebula and hot pink emission nebula.
This version was specially processed and cropped for display at the Astronomy Photographer of the Year 2012 Science Festival in Croatia.
Canon EOS 450D + Zeiss Planar T* 50mm f/1.7 MM
Stack of 16 frames + 8 darks at f/2.8, ISO 200 and 4 minutes of exposure time. Vixen GP-DX motorized equatorial mount.
Shot while fending off hordes of mosquitos and constantly checking over my shoulder for a bear that had been spotted in the area within the past 24 hours. Thankfully, no bear - only photons and bug repellent. This was from one of my favorite sites near Alder Springs, CA, on the night of 2017-06-25.
All subframes were 2m 30s, and each panel is a stack of at least 12 subframes.
Celestron Edge HD 9.25" at f/2.3 with HyperStar
Atik 314L+ color CCD
Guiding with PHD2; ZWO ASI120MM camera on an 80mm f/5 NexStar refractor
Preprocessing with darks and flats in Nebulosity
Processing and mosaic compositon in PixInsight
Final processing in PS CS5.1
Image is 54' by 1° 55'
Center (J2000) is at:
RA 18h 3m 40s
DEC -23° 42' 2"
Scale is 2.5" per pixel
For a more complete version, see flic.kr/p/26vW2AQ
Equipment: Sigma 35mmF1.4 Art, IDAS NB12 Dual Narrowband Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5n Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 174MM-mini, and PHD2 Guiding
Exposure: 11 times x 1,200 seconds,8 x 240 sec, and 17 x 60 seconds at ISO 6,400 and f/3.2
site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.
Nebulosas de la Laguna y Trífida (M8 y M20)
1 foto x 60 segundos a 100mm f/2.8 con seguimiento con la montura Vixen Polarie.
WEB -| www.josemiguelmartinez.es
This is the view from my balcony with the MilkyWay some shots from the last few weeks. It conatins the OmegaNebula (M17), EagleNebula(M16), LagoonNeblua(M8), TrifidNebula(M20).
The DeepSky images were captured with a 12” Newton f4 and a OneShotColor CMOS camera.
The MIlkyWay shot was done with a astromodified Canon 750D, a 20mm Sigma and a CLS-Filter to suppress light pollution.
The Trifid Nebula (M20) Image taken during the last Grandview trip. It was first discovered by Charles Messier on June 5, 1764.
Equipment: Sigma 35mmF1.4 Art, IDAS NB12 Clear Filter, and EOS R6-SP5, modified by Seo San on ZWO AM5n Equatorial Mount, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, ZWO ASI 174MM-mini, and PHD2 Guiding
Exposure: 12 times x 600 seconds, 10 x 240 sec, and 9 x 60 seconds at ISO 1,600 and f/3.2 with Clear Filter
site: 2,560m above sea level at lat. 24 23 21 South and long. 70 12 01 West near the peak of Cerro Ventarrones Chile
Ambient temperature was 11 degrees Celsius or 52 degrees Fahrenheit. Wind was mild, and guide error RMS was 0.73". Sky was dark, and SQML was 21.77 at the night.
The Lagoon (M8 at bottom) and Trifid (M20) nebulae in the constellation Sagittarius. 2 frames, 20 exposures, each 360 sec. Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC camera, H-alpha filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor, Lightroom,and Photoshop
The Trifid Nebula (M 20) in H-alpha (green) [O III] (blue) and [S II] (red filters) using the WFC (Wide Field Camera) instrument at the 2.5m Isaac Newton Telescope (INT) in the Roque de los Muchachos Observatory (La Palma, Spain) in 2005.
This was one of the very first colour images using professional telescopes that I processed when I was doing my PhD at the Instituto de Astrofísica de Canarias (IAC, Spain). I used this image for illustrating my PhD Thesis and for explaining H II regions. The data were taken by Sergio Simón-Díaz as a part of a study of Galactic HII regions we were conducting at the moment.
This is a reprocessing of the data I've done in 2020, where I performed some cleaning of saturated stars, color correction, removing artefacts, hot pixels, and selective smart sharpen for revealing some extra details. However, I can't find the original FITS data of the individual channels, so this has been done over the Photoshop file I created in 2006, when I first created the colour image.
The data is actually a mosaic including the blue reflection nebula (at its top in this image), but I have not reprocessed (yet) the other ccd as it is very tricky (plenty of artefacts and a very saturated star). I hope to eventually do it.
Credit: Ángel R. López-Sánchez, Sergio Simón-Díaz, Jorge García-Rojas & César Esteban.
A mosaic of the Milky Way around the Small Sagittarius Starcloud (M24). The field takes in the Milky Way from the Lagoon Nebula (M8) at bottom to the Eagle Nebula (m16) at top left. In between from top to bottom are the Swan Nebula (M17), and the Small Sagittarius Starcloud (M24). Flanking the bright M24 starcloud are the large open clusters M23 (right) and M25 (left). At bottom left is the M22 globular star cluster.
This is a mosaic of 2 panels, each a stack of 5 x 3 minute exposures with the 135mm lens at f/2.8, and with the filter-modified Canon 5D Mark II at ISO 1600 tracking the sky on the iOptron SkyTracker, with no guidind. Images were stacked and stitched in Photoshop CC. Taken from the Four Bar Cottages near Portal Arizona, May 4/5, 2014.
A mosaic of the region around the centre of the Milky Way in Sagittarius and Scorpius. The field takes in the Milky Way from the Cat's Paw Nebula at bottom edge to the Eagle Nebula at top left. In between from top to bottom are the Swan Nebula (M17), the Small Sagittarius Starcloud (M24), the Trifid and Lagoon Nebulas (M20 and M8) and the open clusters M6 and M7. The prominent dark nebula at right is the large Pipe Nebula (B78) with the small Snake Nebula (B72) above it. The whole complex is visible to the naked eye as the Dark Horse.
This is a mosaic of 6 panels, each a stack of 5 x 3 minute exposures with the 135mm lens at f/2.8, and with the filter-modified Canon 5D Mark II at ISO 1600 tracking the sky on the iOptron SkyTracker, with no guidind. Images were stacked and stitched in Photoshop CC. Taken from the Four Bar Cottages near Portal Arizona, May 4/5, 2014.
Il s'agit d'une pose unique de 10 secondes prise avec l'appareil à même le sol. La photo a été prise en Espagne, au pied des Pyrénées, heureusement qu'il reste des endroits avec un ciel bien pur!
As nebulosa da Lagoa (em vermelho na direita) e da Trífida (vermelha e azul na esquerda) situam-se na constelação do Sagitário. Tirei esta foto durante o 6º Encontro Brasileiro de Astrofotografia, perto de Alto Paraíso de Goiás, no dia 8 de julho de 2013.
The Lagoonl Nebula (red, to the right) and Trifid Nebula (blue and red, to the left) are located in the constellation Sagitarius. I took this photo during the 6st Brazilian Astrophotography Meeting, near Alto Paraiso de Goias, midwestern Brazil, in July 8th, 2013.
Details: Canon 1000D coupled to an apochromatic telescope mounted on a Skywatcher EQ-5 Pro Synscan. Exposure data: F=600mm, f/7.5, ISO 1600, T=90s. 10 lights, 15 darks and 17 flats. Processed in PixInsight.
equipment: Sigma 35mmF1.4 DG HSM "Art" and Canon EOS 5Dmk2-sp2, modified by Seo-san on Takahashi EM-200 Temma 2 Jr, autoguided with Takahashi FSQ-106ED, hiro-design off-axis guider, SX Lodestar, and PHD Guiding
exposure: 6 times x 25 minutes, 3 x 15 min, 5 x 4 min, and 4 x 1 minute at ISO 1,600 and f/4.0
site: 11,000 feet above sea level near Mauna Loa Observatory in Hawaii
The Trifid Nebula in Sagittarius.
Exposures: L: 90 R:40 G:40 B:40 minutes (3.5 hours)
Date: 17th June 2009
Location: Macedon Ranges, Victoria.
Processing:
Sub-Image calibration, colour image sigma rejected addition and RGB image creation with CCDStack.
Background correction using the PixInsight software's Dynamic Background Extraction Tool.
Adobe RGB 1998 colourspace conversion, Mild sharpening, levels and a slight desaturation with Adobe Photoshop CS4.
Image planned, acquired, captured and processed from the Gold Coast, using the remote telescope at Southern Galactic in the Macedon Ranges in Victoria.
Telescope: 16" f8.4 Richey-Chretien
Focal Length: 3414mm
Camera: Apogee Alta U9000
Pixels: 3056 x 3056 x 12um
equipment: Zeiss Aposonnar 135mmF2 and Canon EOS 5Dmk2-sp2, modified by Seo-san on Takahashi EM-200 Temma 2 Jr, autoguided with Takahashi FSQ-106ED, hiro-design off-axis guider, SX Lodestar Autoguider, and PHD Guiding
exposure: 3 times x 15 minutes, 4 x 4 min, and 4 x 1 minute at ISO 1,600 and f/3.2
site: 11,000 feet above sea level near Mauna Loa Observatory in Hawaii
Messier 20 - The Trifid Nebula in Sagittarius.
Exposures: L: 90 R:40 G:40 B:40 minutes (3.5 hours)
Date: 17th June 2009
Location: Macedon Ranges, Victoria.
Processing:
Sub-Image calibration, colour image sigma rejected addition and RGB image creation with CCDStack.
Background correction using the PixInsight software's Dynamic Background Extraction.
Image planned, acquired, captured and processed from the Gold Coast, using the remote telescope at Southern Galactic in the Macedon Ranges in Victoria.
Telescope: 16"; f8.4 Richey-Chretien
Focal Length: 3414mm
Camera: Apogee Alta U9000
Pixels: 3056 x 3056 x 12um
2010 Royal Observatory Greenwich -Astronomy Photographer of the Year - Highly Commended.
Displayed in 2012 at the Edinburgh Science Fair.
Published in the 2012 Astronomy Photographer of the Year Book published by the Royal Observatory Greenwich.
Displayed in 2012 at the Croatia Science Festival.
Messier 8 and Messier 20
with mobile equipment
Exposure data:
Location: Isle La Palma ESP / El Pinar
Luminance: 36 x 3 min @ 800 ASA
Optic: Takahashi FS60CB f/6
Mount: AstroTrac TT320
Camera: Canon EOS 20Da
Processing: ImagesPlus, PS, Noise ninja
My first wide-field astrophotography composition, taken last night from 1am-3am. This is a composition of 16 frames, 8x300sec, 4x200sec, and 4x100sec.
Equipment used:
C8 (used for guiding)
CGEM-DX mount
NightScape CCD attached to a Canon EF 200mm f/2.8L lens, riding piggyback on the top dovetail.
NexGuide autoguider
This lens is next to impossible to focus precisely!! I basically gave up after 30 minutes of trying to get a sharp focus...
King Crimson / Islands
Side one:
- "Formentera Lady" - 10:18
- "Sailor's Tale" - 7:29
- "The Letters" - 4:28
Side two:
- "Ladies of the Road" - 5:31
- "Prelude: Song of the Gulls" - 4:14
- "Islands" - 9:15
- Untitled (hidden track, begins one minute after Islands ends) - 1:36
(All songs written by Robert Fripp, all lyrics written by Peter Sinfield.)
Robert Fripp – guitar, mellotron, harmonium, sundry implements, production
Peter Sinfield – lyrics, sounds and visions, cover design and painting, production
Mel Collins – saxophones, flute, bass flute, backing vocals, production
Ian Wallace – drums, percussion, backing vocals, production
Boz – bass, lead vocals, choreography, production
Keith Tippett – piano
Robin Miller – oboe
Mark Charig – cornet
Harry Miller – double bass
Recorded: October 1971 at Command Studios, Piccadilly, London, England
sleeve design: photo of the Trifid Nebula
Label: Alantic Records / 1971
ex Vinyl-Collectin MTP
en.wikipedia.org/wiki/Islands_(King_Crimson_album)
This small extract from the VISTA VVV survey of the central parts of the Milky Way shows the famous Trifid Nebula to the right of centre. It appears as faint and ghostly at these infrared wavelengths when compared to the familiar view at visible wavelengths. This transparency has brought its own benefits — many previously hidden background objects can now be seen clearly. Among these are two newly discovered Cepheid variable stars, the first ever spotted on the far side of the galaxy near its central plane.
More information: www.eso.org/public/images/eso1504a/
Credit:
ESO/VVV consortium/D. Minniti
15 @ 5 minutes each, ISO 800
20 darks, 30 bias
Equipment: Canon t2i (unmodded), Orion 8" f/3.9 Astrograph Newt., Atlas EQ-G
Guiding: Orion ST80, PHD, SSAG
Accessories: Baader MPCC, Astronomik CLS Filter (EOS Clip)
Software: DeepSkyStacker, Photoshop CS5, Noiseware Community Edition, EQMOD, Backyard EOS
My First astrophoto with my new vintage lens
The Lagoon Nebula (M8, Messier 8 and NGC 6523) is a gigantic interstellar cloud in the Sagittarius constellation. It is classified as an emission nebula), whose ionized gases, mainly hydrogen, emit radiation mainly in the wavelength range of visible red light.
Lagoon Nebula was discovered by Giovanni Hodierna before 1654. Viewed through binoculars, the nebula appears as a distinct oval blob with a defined core. Superimposed on the nebula is a small open cluster of stars. It has an apparent magnitude of 6.0 and is located 4,850 light-years from Earth.
📌Anápolis - Goiás, Brazil. 25-05-22, 07-18-22 and 07-19-22
📷Canon 600d Astromod
🔍Vintage Asahi SMC Pentax-M 135mm f3.5
🔭Fixed Tripod
☄️@novaastrophotos
📋 Exif: 46,9 minutes of total exposure.
18-07
Lights: 523x2" 3200 f4
Darks: 75x2"
Bias: 75x1/4000s
19-07
Lights: 681x2" 3200 f3.5
Darks: 100x2"
Flats: 50x1/160s f3.5
Bias: 75x1/4000s
25/05
Lights: 164x2.5" 12800 f5.6
Darks: 30x2.5"
Bias: 30x1/4000s
Stacking and Processing done with Pixinsight and Photoshop.
A wonderful view in the heart of our galaxy. The Trifid and Lagoon Nebulas with a visit from Saturn in Sagittarius.
~ 1 hour of imaging
Canon 6D - 70-300mm lens @ 300mm
ISO 1600
Tracking with SkyGuider pro
Cropped and processed in PS
These two nebulae are between 4,000 and 5,000 light years from earth and appear in the constellation Sagittarius just above and to the left of the brightest portion of the Milky Way ("above" and "left" when looking south from the northern hemisphere). The open star cluster M21 also appears in this photo, near to the far left, center edge of the frame.
Photographed on the evening of July 7, 2013 from a moderately dark-sky location using a 5 inch aperture, f/4.2 telescope and a Sony NEX-5N digital camera (ISO 3200, a stack of seventy-nine images each exposed for 30 seconds, producing a total exposure integration time of just under 40 minutes). Tracking for each of the 30 second exposures was performed by a Celestron CGEM mount (no manual or auto guiding, standard sidereal rate after All-Star polar alignment).
I've also posted an image that was created with this same setup, but using only one thirty-second exposure (i.e. no stacking, as was done with the above image). The thirty-second image is located HERE.
Image registration, integration, and adjustments done with PixInsight v01.08.00.101 with final tweaks in Photoshop CS5.
This image is best viewed against a dark background (press the "L" key to enter the Flickr light box) or at its LARGEST SIZE.
All rights reserved.
Three huge, intersecting dark lanes of interstellar dust make the Trifid Nebula one of the most recognizable and striking star birth regions in the night sky. The dust, silhouetted against glowing gas and illuminated by starlight, cradles the bright stars at the heart of the Trifid Nebula. This nebula, also known as M20 and NGC 6514, lies within our own Milky Way Galaxy, about 9,000 light-years from Earth in the constellation Sagittarius.
This new image from the Hubble Space Telescope offers a close-up view of the center of the Trifid Nebula, near the intersection of the dust bands, where a group of recently formed, massive, bright stars is easily visible. These stars, which astronomers classify as belonging to the hottest and bluest type of stars, called "O-type" stars, are releasing a flood of ultraviolet radiation that dramatically influences the structure and evolution of the surrounding nebula. Many astronomers studying nebulae like the Trifid are focusing their research on the ways that waves of star formation move through such regions.
The group of bright O-type stars at the center of the Trifid illuminates a dense pillar of gas and dust, seen to the right of the center of the image, producing a bright rim on the side facing the stars. At the upper left tip of this pillar, there is a complex filamentary structure. This wispy structure has a bluish color because it is made up of glowing oxygen gas that is evaporating into space.
Star formation is no longer occurring in the immediate vicinity of the conspicuous group of bright O-type stars, because their intense radiation has blown away the gas and dust from which stars are made. However, not far away there are signs of interstellar material collapsing under its own gravity, leading to ongoing star formation. One such example is a very young star that is still surrounded by a ring of gas and dust left over from the star's formation. These circumstellar rings, called protoplanetary disks, or "proplyds" for short, are believed to be the locations where planetary systems are formed. A proplyd appears to the lower right of the O-type stars in this image.
Near the top of the image, a jet of material is seen being ejected from a very young, low-mass star. The jet, extending slightly down and to the right, protrudes from the head of a dense pillar and extends three-quarters of a light-year out into the surrounding thin gas. The jet's source is a very young stellar object that lies buried within the pillar. Previous Hubble images of the Trifid Nebula taken in 1997 show very small but noticeable changes in the knotty material being ejected from this jet. Accompanying the jet is a nearby stalk that points directly toward the central stars in the Trifid Nebula. This finger-like stalk is similar to the large pillars of gas in the Eagle Nebula, also imaged by Hubble.
This Hubble image of the Trifid Nebula has given astronomers insight into the nature of the interaction of gaseous, dusty and stellar material in an area where dust, gas clouds, and new and old stars coexist. The science team took exposures in filters that transmit light emitted by oxygen, hydrogen, and sulfur ions. The images were taken with the Wide Field Planetary Camera 2 onboard Hubble in 2001 and 2002.
For more information please visit:
hubblesite.org/image/1540/news_release/2004-17
Credit: NASA, ESA, and the Hubble Heritage Team (AURA/STScI)
Acknowledgment: F. Yusef-Zadeh (Northwestern Univ.)
Imaging telescope / lens
Celestron Schmidt-Cassegrain (SCT) 203/2032-2031 mm SCT 8''
Imaging camera
Sony Nex-5N (CMOS) - modified
Mount
Equatorial fork Clestron Evolution
Guiding telescope / lens
Svbony Refractor 50/190 mm
Guiding camera
ZWO Optical 224MC (CMOS)
Filters
Optolong Light pollution L-Pro 2.00"
Accessories
Focal reducer Celestron 2.00"
ISO800
Lights (filter Light pollution)50 x 180 sec
Total integration time2:30 hours
The Lagoon Nebula M8 (Mag 0.0) + Trifid Nebula M20 (Mag 7.6) region.
The Globular Cluster NGC6544 (Mag 8.3) can been seen @5'oclock about a 1/4 of the way into the picture as a 'yellow' object.
20 Lights @2m30secs and then 5 Darks @2mins30Secs also.
Pocessed in DSS and post Processed in CS6.
This is a 'Test' shot and so should be viewed in that way.
Astrometry :
My 80ED has a field of view just wide enough to take in both M8 and M20--but I might try this with my 70-300 lens sometime to give them a bit more border (that is, if I can rig up a way to use that lens on my mount somehow)
Stack of thirty 30-second, ISO 1600 shots done in DeepSkyStacker.
1 frame with a Nikon D7000 18mm to 105mm lens at 18mm f3.5 on a Vixen Polarie at 1600 ISO at 30 sec. Processed in ACR and CS6.
The Lagoon Nebula aka M8 is the largest and brightest of a number of nebulosities in and around Sagittarius.
The Lagoon Nebula, also known as M8 or Messier 8, is a large gas cloud within the Milky Way Galaxy, barely visible to the human eye under good conditions. It appears a few degrees above and to the right of the Teapot asterism in the constellation Sagittarius. Visually about three times the size of the full moon, the Lagoon Nebula is the largest and brightest of a number of nebulosities in and around Sagittarius.
M8 is about 5000 light years away, and roughly 130 light years across in the longer dimension. Composed primarily of hydrogen, much of it ionized (heated or energized) by radiation from the nearby superstar Herschel 36, M8 is known as an emission nebula. As such it also is a star-forming region, sometimes called a “stellar nursery.” There is an open star cluster, NGC 6530, of young, hot, blue stars probably only a few million years old. In addition to these young stars, there are also many dark “Bok” globules of condensing gas and dust on their way to becoming “protostars” and ultimately full-fledged stars like those already formed nearby.
Source: earthsky.org/clusters-nebulae-galaxies/the-lagoon-nebula-...
The Trifid is a famous summertime binocular object. Its name means “divided into three lobes.” If you view this nebula through a telescope, you’ll see why.
The Trifid Nebula (Messier 20) is one of the many binocular treasures in the summer Milky Way. Its name means divided into three lobes, although you’ll likely need a telescope to see why. On a dark, moonless night, you can star-hop upward from the spout of the Teapot in Sagittarius to another famous nebula, the Lagoon, also known as Messier 8. In the same binocular field, look for the smaller and fainter Trifid Nebula as a fuzzy patch above the Lagoon. Follow the links below to learn more.
Whether the close-knit nebulosity of the Trifid and Lagoon Nebulae represents a chance alignment or an actual kinship between the two nebulae is open to question. Both the Trifid and Lagoon Nebulae are thought to reside about 5,000 light-years away, suggesting the possibility of a common origin. But these distances are not known with precision, and may be subject to revision.
Both the Trifid and Lagoon Nebulae are vast cocoons of interstellar dust and gas. These are stellar nurseries, actively giving birth to star formation. The Trifid and Lagoon Nebulae are summertime’s answer to the winter sky’s Great Orion Nebula.
For more about the science of this nebula, see our article on exploring the Trifid Nebula.
Bottom line: The Trifid is a famous summertime binocular object. Its name means “divided into three lobes.” If you view this nebula through a telescope, you’ll see why.
earthsky.org/clusters-nebulae-galaxies/trifid-nebula-a-su...
I used my camera to produce a night sky image to provide a location map for more detailed, higher resolution photographs of features that are present in this portion of the Milky Way.
The following classes of features are identified in this image; Planets, the Milky Way, Messier Objects, and Barnard Catalogue (Dark nebulae) Objects.
A “clean” version of this image, along with details of the hardware, capture, and post-processing can be seen at ...
www.flickr.com/photos/momentsforzen/42748021022/
@MomentsForZen #MomentsForZen #MFZ #Hasselblad #X1D #PixInsight #Photoshop #GradientXTerminator #Lightroom #PhotoSync #Sky #Night #Dark #Stars #Planets #Saturn #MilkyWay #GreatRift #LargeSagittariusStarCloud #SmallSagittariusCloud #Teapot #Scorpius #TheCatsEyes #Lesath #Shaula #MessierObjects #M6 #ButterflyCluster #M7 #PtolemyCluster #M8 #LagoonNebula #M20 #TrifidNebula #M16 #EagleNebula #M17 #SwanNebula #HorseshoeNebula #M22 #SagittariusCluster #M23 #M25 #BarnardCatalogue #DarkNebula #B56 #B78 #ThePipeDarkNebula
Here's a collage of some common Deep Sky Objects and the Moon. All were taken using a Canon EOS 550D at prime focus of a 12" Goto Dobsonian and all are at the same scale.
I thought it might be interesting to see just how large these objects appear when compared to the Moon.
Exposures ranged from 1/500sec to 10 seconds.
Clockwise from top left:
Centaurus A galaxy, Keyhole Nebula in Carina, M22 globular cluster, Orion Nebula, Lagoon Nebula, Trifid Nebula, Omega Centauri globular cluster.
I used my camera to produce a night sky image to provide a location map for more detailed, higher resolution photographs of features that are present in this portion of the Milky Way.
I don’t often use an 80mm lens for night sky photographs, but I am very happy with the level of detail in the output here. This focal length is midway between the wide angle (21-40mm) and mild telephoto (150mm and 250mm) lenses that I use more often.
The following features of interest can be seen in this image;
Planets ...
- Saturn
Milky Way ...
- Great Rift
- Large Sagittarius Star Cloud
- Small Sagittarius Cloud
- The “Teapot”
- Scorpius - Including the Cat’s Eyes - Lesath and Shaula
Messier Objects ...
M6 - Butterfly Cluster
M7 - Ptolemy Cluster
M8 - Lagoon Nebula
M20 - Trifid Nebula
M16 - Eagle Nebula
M17 - Swan (Horseshoe) Nebula
M22 - Sagittarius Cluster
M23
M25
Barnard Catalogue (Dark nebulae) ...
- B56, B59, B65-67, and B78 - The Pipe (Dark) Nebula - Barnard Catalogue
-———
Links for background information ...
en.wikipedia.org/wiki/List_of_Messier_objects
en.wikipedia.org/wiki/Barnard_Catalogue
en.wikipedia.org/wiki/Pipe_Nebula
-———
An annotated version of this image can be seen at ...
www.flickr.com/photos/momentsforzen/28924569218/
The annotation was added using Pixelmator Pro.
-———
[ Location - Barton, Australian Capital Territory, Australia ]
Photography notes ...
The photograph was taken using the following hardware configuration ...
(Year of manufacture indicated in braces where known.)
- Hasselblad X1D-50c Medium Format Mirrorless Digital Camera (Silver) - MFR # H-3013900 (2017).
- Hasselblad X1D GPS Module - MFR # H-3054772.
- Really Right Stuff BX1D-L Set L-Plate for Hasselblad X1D - MFR # BX1D L-PLATE SET.
- Novoflex Adapter Hasselblad V-Lenses To Hasselblad X-Mount (X1D) - MFR # HAX/HA.
- Hasselblad Carl Zeiss lens - Planar T* 80mm f/2.8 CFE (2000).
- FotodioX B60 Lens Hood for Select Hasselblad Standard Length CF Lenses.
- Really Right Stuff (RRS) TQC-14 Series 1 Carbon Fiber Tripod - MFR # TQC-14.
- Really Right Stuff (RRS) BH-30 Ball Head with Mini Screw-Knob Clamp - MFR # BH-30 PRO.
- Artisan & Artist ACAM-301N Silk Cord Strap (Black) - MFR # AAACAM301NBLK.
I acquired the 21 input photographs (8272 x 6200 pixels) with an ISO of 800, exposure time of 8.0 seconds, and aperture of f/2.8.
Post-processing ...
Finder - Removed the UHS-I SDXC card from the camera and placed it in a Lexar 25-in-1 USB card reader. Then used Finder on my MacBook Air to download the raw image file (3FR extension) from the card.
Lightroom - Imported the 3FR images.
Lightroom - Exported the images as 16-bit TIFF files.
PixInsight - Loaded the images.
PixInsight - Registered the images, using the image in the middle of the sequence of photographs as the reference image.
PixInsight - Integrated / stacked the images.
PixInsight - Output the stacked image as a 16-bit TIFF image.
Photoshop - Imported the PixInsight TIFF image.
Photoshop - Selected slivers along the edges where there were artifacts related to the registration and integration of the input photographs.
Photoshop - Filled these areas using the content-aware fill option
Photoshop - Selected background portions of the image (e.g., corners and borders of the image).
Photoshop - GradientXTerminator - Applied the Filter / RC-Astro / GradientXTerminator Photoshop plug-in that uses tension splines to remove gradients from the image, including any vignetting. Specified “Fine” for “Details”, “High” for “Strength”, and checked the “Balance Background Color” option.
Photoshop GradientXTerminator - Output the image as a TIFF file.
Lightroom - Imported the TIFF image.
Lightroom - Applied various basic lighting and color adjustments in the Develop module.
Lightroom - Saved the Develop module settings as a preset.
Lightroom - Output the image as a JPEG image using the “Maximum” quality option (8272 x 6200 pixels).
PhotoSync - Copied the processed image to my iPad Mini for any final processing, review, enjoyment, and posting to social media.
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Canon 450D/XSi Baader modified, Celestron C14 Hyperstar, BackyardEOS, no guiding.
30x30 seconds @ 400 ISO, 30 Darks, 100 Bias/Offsets, no flats.
Fully processed with PixInsight, except resize with Photoshop CS6.
---Photo details----
Stacks Hα: 5x10 min
Exposure Time :50min
Stack program : AstroArt 7
Stack mode : Sigma clip
Processed: AstroArt, Topaz Denoise, Lightroom
---Photo scope---
Camera : QSI 660 wsg-8
Binning : 2x2
CCD Temperature : -10C
Filter(s) used:
Astrodon 3nm Hα
Tube : Astro-Physics 130 EDF F/6
Field flattener / Reducer : Astro-Physics flattener
Effective focal length : 780 mm
Effective aperture : ~ F/6
---Guide scope---
Camera : Lodestar X2
Off Axis Guiding: yes
Guide exposure : 0.5 sec
---Mount and other stuff---
Mount : Skywatcher AZ-EQ-6 GT
A wide view of Sagittarian trio of nebula.
Though really much more than a trio when viewed up close, the two most recognisable of the bunch are the Lagoon nebula at bottom and the Trifid Nebula at the top.
(中間)M8(NGC 6523) 礁湖星雲-The Lagoon Nebula
(右上)M20(NGC 6514 ) 三裂星雲-Trifid Nebula
Canon EOS R7
Canon EF 70-300 F4-5.6 IS II USM
Sky-Watcher Star Adventurer Pro
ISO 3200 120s F8, 300mm
Light frame ：8p x 2 = 16min
Dark frame：3p
Flat frame：40p
SiriL,StarNetv2,LightRoom,Photoshop
Also known as M20, this photogenic nebula is visible with good binoculars towards the constellation of Sagittarius.
The powerful processes of star formation not only create colors but also chaos.
The bright red gas originates from the high-energy starlight hitting the interstellar hydrogen gas.
The dark dust filaments that traverse M20 in the form of loops were created in the atmospheres of cold giant stars and in the remnants of supernova explosions. The bright, young stars that illuminate the blue reflection nebula are still being investigated.
The light of M20 that we observe today perhaps left it 3,000 years ago, although the exact distance is still unknown. The light takes about 50 years to cross M20.
Captured on March 8, 2019 in the Cajon del Maipo, Chile.
Authors: Mario Poblete / Manuel Tobar.
También conocida como M20, esta fotogénica nebulosa es visible con buenos binoculares hacia la constelación de Sagitario.
Los potentes procesos de formación estelar no solo crean los colores sino también el caos.
El gas rojo brillante se origina a partir de la luz estelar de alta energía golpeando el gas hidrógeno interestelar.
Los filamentos de polvo oscuro que atraviesan M20 a modo de lazos fueron creados en las atmósferas de estrellas gigantes frías y en los restos de explosiones de supernovas. El que estrellas jóvenes y brillantes iluminen la nebulosa de reflexión azul aún está siendo investigado.
La luz de M20 que observamos hoy quizás la abandonó hace 3.000 años, aunque la distancia exacta aún es deconocida. La luz tarda unos 50 años en atravesar M20 .
Capturada el pasado 8 de marzo del 2019 en el Cajon del Maipo, Chile.
Autores: Mario Poblete/Manuel Tobar.