View allAll Photos Tagged Nebulae
In Sagittarius, low in the south, just above hot rooftops (37C daytime temp) with 30+ degrees C sensor temperatures taken with Canon 6Da and Esprit 100mm f5.5 telescope and Optolong L (IR/UV cut) filter. Two separate stacks in Deepskystacker 12x30sec iso1600 and 40x120sec iso1600 using 20 darks, 31 flats and 174 biasframes. Processed in Pixinsight using DBE, HDRCombination, Histogramtransformation, HDR Multiscaletransform and Curves. No Noisereduction.
Knight Observatory, Tomar
Use F11 and L for best view.
This image is a work in progress that is only partially complete. I have decided to post it now in this incomplete state for two reasons. The first is because I really like the look of it as it's developing, I think it's really cool and I LOVE the space dust! The second reason is because the weather has been so poor in our area that I have no idea if we will get enough clear sky nights in the next two months for me to complete the project. In April these objects become essentially inaccessible till next Fall.
Technical info:
Many astrophotographers use a method for processing their images where they create a starless version of the image by carefully removing the stars. Then after doing various detailed processes on the starless version, they add the stars back in. That is the stage where this project currently is, except it's still very rough and noisy and needs several more hours of imaging added to give it the smooth high quality look I'm hoping for. Also, the details in the core of Orion are blown out from overexposure and need to be added back in later.
This image is being shot with my stock Nikon D5500 and my Nikon 300/f4 ED IF wildlife telephoto lens. Stock cameras like mine have not been specially modified for doing astrophotography so they are not very sensitive to Hydrogen alpha gas which makes up a lot of space dust. Therefore, I have to spend many more hours out there imaging in order to get some decent space dust in an image than someone using a modified camera that has been sooped-up for that purpose.
Continuing my Astro Projection vision...
On one passionately glowing sunset in early October, I had my out-of-body and lens experience on cityscapes of Toronto... enjoyed the feeling of being transported into a cosmic wirlpool of light particles as if it's nebulae dimensions.
...all brought to you by my manual zoom and ICM magic :-)
*It's a SOOC image, manual zooming and moving during long exposure - no processing involved!
camera: Moravian G3-16200 (FSQ) and ZWO ASI6200MM Pro (TEC) with EFW 7x2"
filters: Optolong LRGB and Chroma 3-nm Ha/O3
telescope: FSQ106N (RGB) and TEC 140 f/7 (HaO3)
mount: 10Micron GM2000 QCI
guider: OAG with Lodestar X2 (FSQ), ZWO ASI120 mini on 50-mm f/4 guidescope (TEC)
exposure: RGB 15x5min (1x1, FSQ) + Ha/O3 30x20min (2x2, TEC)
location: Les Granges, 900 m (Hautes Alpes, France)
software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC
date: 16 Nov 2020 - 10 Oct 2021
The Orion Nebula is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion.[b] It is one of the brightest nebulae, and is visible to the naked eye in the night sky.
This image taken with the NASA/ESA Hubble Space Telescope showcases the emission nebula NGC 2313. Emission nebulae are bright, diffuse clouds of ionized gas that emit their own light.
The bright star V565 (center of the image) highlights a silvery, fan-shaped veil of gas and dust, while the right half of this image is obscured by a dense cloud of dust. Nebulae with similar shapes were once called “cometary nebulae” because the star with an accompanying bright fan looked like a comet with a bright tail.
The language that astronomers use changes as we become better acquainted with the universe, and astronomical history is littered with now-obsolete phrases to describe objects in the night sky, such as “spiral nebulae” for spiral galaxies.
Image credit: ESA/Hubble, R. Sahai
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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My latest process using data from Grand Mesa Observatory’s system 1 the Takahashi FSQ 130 (available on our subscriptions) using a QHY367C full frame One Shot Color CMOS camera with Chroma Narrowband Filters. I recently processed this same area with narrowband filters in a hubble palette rendering www.flickr.com/photos/terryhancock/48762002422/in/datepos... but this time around I have used the RGB together with H-alpha data
Captured over 6 nights in June and July 2019 for a total acquisition time of 18.75 hours.
View in High Resolution www.flickr.com/…/terryha…/48762002422/in/dateposted/
Technical Details
Captured and processed by: Terry Hancock
Location: GrandMesaObservatory.com Purdy Mesa, Colorado
June 27, July 5th, 6th, 7th, 8th, 26th
RGB 690 min 69 x 600 sec
H-Alpha 435 min 29 x 900 sec
Narrowband Filters by Chroma "5nm"
Camera: QHY367C
Gain 2850, Offset 76 with Dark Frames no Flat.
Optics: Walter Holloway's Takahashi FSQ 130 APO Refractor @ F5
EQ Mount: Paramount ME
Image Acquisition software Maxim DL6
Pre Processing in Pixinsight
Post Processed in Photoshop CC
Starnet (star removal)
Visible in this image, the most prominent being top center The Lagoon Nebula, a giant emission Nebula and HII region, lower left M20 or NGC 6514 known as The Trifid Nebula a combination of emission nebula (the red area) and reflection nebula (the blue area) and dark nebula. Also visible to the right of this image are the magnificent star forming regions of NGC6559, IC 1274 and IC 1275 as well as Open cluster NGC 6546 and Reflection Nebula IC 4685
Soul Nebula is emission nebulae in Cassiopeia. Several small open clusters are embedded in the nebula: CR 34, 632, and 634[citation needed] (in the head) and IC1848 (in the body). The object is more commonly called by the cluster designation IC1848.
Date of shoot: 14/10/15
Ha: 16 subs @900s
RGB: 12 subs @300s bin 2*2
Camera Starlight Express SXVR-H694
Filter Wheel : Starlight Express Mini Wheel
Mount : Ioptron EQ30
Scope: FSQ85
Filters : Astrodon LRGB, Ha 5nm
Horsehead and Flame Nebulae in Orion
Horsehead: Barnard 33 in emission nebula IC434 & Flame Nebula (NGC2024 and Sh2-277)
Acquisition Date: 12/28/2013
Camera: SBIG ST8300M @ -15°C
Telescope Stellarvue SV105T (f/7)
Mount: Astro-Physics AP1100
Guidescope: William Optics 50mm f/4 guiding/finderscope
Guide Camera: SBIG STi-M
Filters:(Astrodon)
-Hydrogen Alpha (3 nm Ha): 6 x 15min (90min)
Limiting Magnitude: 5.1
Comments: Stellarvue SFF7-21 field flattener.
Processed in PixInsight 1.8 and Adobe Photoshop CS5
Double Star Cluster in Perseus -- 100s of stars in each, about 7000 light years away; and Heart (top), and Soul (bottom) nebulae. These are both emission nebula at some 7500 light years away from Earth. In the background is the Perseus arm of the Milky Way, practically all space is filled with stars.
Details: Location -- Pea Island in OBX, North Carolina. Canon 6D (no mods), 100mm at f/4, ISO 6400, 18 x 3 min exposures with sidereal tracking and dithering (manual). Images stacked RegiStars and processed ACR and Ps.
#58 Highest position! that means SO much to me :') :DDDDDDd SO HAPPY ABOUT THIS BEING EXPLORED !!!words cannot express!
so i was busy all day today.....managed to get my idea WITH INSPIRATION from of course the beautiful lissy elle and superpipo2010 :) I dressed as john darling..and oh my god did i look like him HAHA :D LAST DAY OF FREEDOM...tomorrow school :/
oh points for anyone that finds peter pan....
Located in Vulpecula, the beautiful dark nebulae LDN768 and LDN769 obscure very effectively part of our galaxy. The patch of blue nebula at the left is VDB126. At the right, gas and dust lying before HD 182918 is being illuminated by this blue star.
Colour image taken at the remote observatory from the E-Eye site in Spain. The image is composed of 17 hours of exposure time with the ZWO ASI-2600MC colour camera using a Takahashi Epsilon 180-ED Astrograph, riding a unguided 10Micron GM2000.
This is a beautiful example of galactic dark nebulae at high latitudes that become visible through illumination by the interstellar radiation field this is known as Extended Red Emission (ERE). ERE is a dust-luminescence process, which appears in a broad band extending in wavelength across the R-band. ERE also often appears in narrow filaments on the edges of clouds and may therefore be mistaken for H-alpha emission. This nebula emits no significant H-alpha signal. It's shape reminds of a cometary globule in its very last phase before being dispersed. (Text: panther-observatory.com/gallery/deepsky/doc/LBN438_cass.htm)
This picture was photographed durin October-November 2015 in Rozhen observatory, Bulgaria.
Equipment: home assembled reflector 10 in., f/3.8
Mount WhiteSwan-180 with a control system «Eqdrive Standart», camera QSI-583wsg, Televue Paracorr-2. Off-axis guidecamera QHY5L-II.
LRGB filter set Baader Planetarium.
L = 26 * 900 seconds , bin.1, RGB = 15 * 300-450 seconds, bin.1 each filter. About 11 hours.
FWHM source in L filter 1.99"-2.73", sum in L channel - 2.32"
The height above the horizon from 66° to 86°, the scale of 1"/ pixel.
Processed Pixinsight 1.8 and Photoshop CS6
DESCRIPTION: Orion nebula M42, Horsehead nebula, IC434 etc. Only 22 min integration time because cloudy weather.
OBJECT: Orion constellation, RA (center) 5h 37 min, DEC 0°, FOV approx 8°x 5°.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor Z 70-200@200, Astronomic UV/IR/L2 Clip in filter, Optolong L Pro light pollution filter, Dew heater strip, tracking mount iOptron CEM60EC
ACQUISITION: February 23, 2022, Struz, CZ, Subexposure 120s, f 2,8, ISO 800, Interval 10 s, RAW-L, Lights 11x, Darks 20x, Bias 20x, Flats 20x, DarkFlats 15x. Total exposure time 22 min. Night, cloudy, no wind, -2° C, no Moon, Backyard - Light pollution - Bortle 5.
STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralisation, light pollution removal, calibrate background and stars colours), Adobe Photoshop CC 2022 (stretching, black and white point settings, star reduction, enhance DSO, deep space noise reduction, contrast setting and sharpening). Cropped 1,5x, image size 3840 x 2560 px.
William Optics GT81, Canon T3 full spectrum - no filters. 2Hrs exposure, 30 seconds frames at ISO 1600
The large nebulae are coming, will you be ready?
For the Eagle Nebula shown here, I can start collecting photons at 2:30am from the backyard.
It's a tempting target on late April nights, and definitely one of the "heavy hitters" of the night sky.
The large emission nebulae in Cygnus are also up by then, and by mid-May, it's a landrush.
Photographed late May 2020.
Today is astronomy day April 25, 2015!
Backyard Astrophotography from New York City - Flame Nebula (NGC 2024) and Horsehead Nebula (Barnard 33)
Canon 60Da with Canon EF 200mm f/2.8 L II USM Telephoto Lens and iOptron SkyTracker tripod.
Exposure 10sec x 148 - about 25 min total. ISO-800, f/3.2
I stacked images using DeepSkyStacker, and for post-processing used Photoshop.Photo was done Jan 31, but just today did final post-proseccing.
The region around Antares (Scorpius) is one of the most amazing and beautiful in the entire night sky. It contains a complex mix of emission nebulae, reflection nebulae, dust lanes which obscure the background stars, and star clusters.
The giant yellow star Antares dominates the central region of this photo and it is surrounded by an emission nebula to the south and a very rare and beautiful yellow reflection nebula to the north. To the north of the photo is the tri-star Rho Ophiuchus which is surrounded by a large blue reflection nebula called IC 4604.
The dark dust lanes of the Milky Way can be seen spiralling eastwards from this region. The small bright reflection nebula to the north of Antares is IC 4605, reflecting the light from the magnitude 4.5 star 22 Scorpious. To the right of the photo is the bright star Sigma Scorpious surrounded by the bright emission nebula Sh2-9. To the south east of this can be seen the bright globular cluster M4. Finally to the north west of Antares is the small globular cluster NGC 6144
equipment: Takahashi FSQ106ED 645RD & Canon 5Dmark2 SP2
guide: Starlightxpress Loadstar,400mm Guide Scope, and MaximDl
exposure: ISO1600 300sec x72
March to April 2015
site: Chiba & Yamanashi, Japan
i imagine a Gregorian chant sounding throughout the galaxy as these crows wait and watch for amazing events to transpire..................
Explore Feb.7/13 #495.....by the skin of it's teeth : > )
I realize I gave this an erroneous name.............it should be Covdidae Galactica.
© All rights reserved.
This Emission- and Reflection nebulae around Gamma Cassiopeia is approx. 600 lightyears away.
-Setup:
Telescope: Omegon 126/880 f/7 Triplet
Mount: Losmandy G11
Camera: Canon EOS 6D Astrodon mod.
-Imaging Data:
12x240" ISO1000
0.80h
©Yigit Uygur. All images are copyrighted. Don’t use my images without my permission. not even on tumblr.
The region of the the Large Magellanic Cloud around the "Tarantula" nebula imaged in SHO narrowband.
This frame contains many objects which were tagged in Astrometry, list below.
This image was exposed through a C8 SCT at f6.3 with a QHY268M camera through SII, H-Alpha and OIII narrowband filters for a total integration time of 12 hours and 35 minutes.
List of objects in the image:
* NGC 2033
* NGC 2037
* NGC 2042
* NGC 2044
* NGC 2048
* NGC 2050
* NGC 2052
* NGC 2055
* NGC 2060
* NGC 2069
* NGC 2070
* 30 Dor Cluster
* Tarantula Nebula
* NGC 2074
* NGC 2077
* NGC 2078
* NGC 2079
* NGC 2080
* NGC 2081
* NGC 2083
* NGC 2084
* NGC 2085
* NGC 2086
* NGC 2091
* NGC 2092
©Yigit Uygur. All images are copyrighted. Don’t use my images without my permission. not even on tumblr.
To my knowledge this is THE first published image from the new Avalon M-Tre mount.
In mono as the moon has been looming big and large since I've got the settings sorted in guiding. I've picked this target as it's furthest from the moon, but I can only get it for a few hours a night, then it goes too low.
Details
Mount: Avalon M-Tre
Camera: QSI683
Scope: Takahashi FSQ85
30x600s Ha
Nikon d810a
Core:
35mm
ISO 4000
f/2.8
1 x 20s
Nebulae:
135mm
ISO 800
f/2.2
2 x 5 x 60s
Foreground:
1 x 30s
iOptron SkyTracker
This is a focal length blend of a single 35mm shot and several 135mm, ten shot stacks of prominent nebulae, including Rho Ophiuchi, taken at Boddington, 1.5 hours south east of Perth in Western Australia.
The 35mm shots were for the foreground and the 'background' sky. The 135mm stack was blended in to better highlight the nebulosity of the Rho Ophiuchi region as well as the Lagoon Nebula, Triffid Nebula & Cat's Paw Nebula. This is a technique more common with deep sky imaging but I thought I'd give it a try with a wide field shot.
The Flame and Horsehead nebulae imaged from London over the nights of the 10th, 14th and 15th February 2019.
This is a narrowband bi-colour image with Ha mapping to the red channel, Oiii to the blue channel and the green comprising a blend of Ha & Oiii.
3 1/2 hours integration for Ha and Oiii, so 7 hours total. 90 second subs taken using a TS65 Quad Astrograph & ASI1600MM Pro camera
equipmnent: Sigma 28mmF1.4 DG HSM Art and Canon EOS 5Dmk3-sp4, modified by Seo-san on Takahashi EM-200FG-Temma 2Z-BL, autoguided with Fujinon 1:2.8/75mm C-Mount Lens, Pentax x2 Extender, Starlight Xpress Lodestar Autoguider, and PHD2 Guiding
exposure: 3 times x 20 minutes, 5 x 15 min, 5 x 4 min, 5 x 1 minute at ISO 1,600 and f/3.5
site: 2,430m above sea level at lat. 24 39 52 South and long. 70 16 11 West near Cerro Armazones Chile
... or From Messier 8 - 20 (lagoon and trifid) and Barnard 72 (the snake)
that's a panorama composed of two stack, Sagittarius area (lagoon and trifid) taken last summer (2015) and the new shots of Ophiuchus taken last week, both from the same place with a very dark sky, Colle di Sampeyre, Italian Western Alps
tech specs of new shots: Canon EOS 600D full spectrum, about 1 hour of integration time with a Canon EF 100mm 2.8 @4.5 - 1600 iso
wiki:
en.wikipedia.org/wiki/Snake_Nebula
it.wikipedia.org/wiki/Nebulosa_Serpente
en.wikipedia.org/wiki/Barnard_Catalogue
Auriga is busy; DeepSkyStacker registered 50k+ stars in this extent. DSOs include the Flaming Star Nebula (IC 405), the Tadpole Nebula (IC 410), the Spider (IC 417) and Fly (NGC 1931) Nebulae, the Pinwheel Cluster (M 36), the Starfish Cluster (M 38), dark nebulae MLB 35, B 222, and CB 27 (on the lower right), and Sharpless 232, 231, and 235 (emission nebulae on the upper left, flic.kr/p/Ru8EmT).
Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Nov. 21, 2019 under Bortle 3/4 skies.
MWP-1 and ALV-1 are two dim planetary nebulae in Cygnus.
MWP1= was discovered by Motch, Werner and Pakull.
ALV-1 was found by the Portuguese amateur Filipe Alves in 2009.
Image was shot frommy balcony with an ASI1600mmp and a TS 130/910 mm apo with 0,79x Reducer,
30 x 200 s Ha
30 x 200 s OIII
31 x 30 s R
29 x 30 s G
31 x 30 s B
La nebulosa Pata de Gato, NGC 6334, a la izquierda abajo, es una fuente de hidrógeno ionizado de ahí su coloración roja , se encuentra a unos 5.500 años luz de nosotros en la constelación de Escorpio, en plena Vía Láctea, tiene una extensión de unos 50 años luz y ocupa mas o menos como la luna llena.
La nebulosa de la Langosta, NGC 6357, se encuentra en el mismo plano que NGC 6334, en Escorpio y es una nebulosa de emisión llena de burbujas que contienen estrellas jóvenes. En su núcleo se encuentra una de las estrellas más masivas registradas, Pismis 24-1 con más de 300 masas solares.
En la imagen predomina el color rojo dada la longitud de onda de emisión del hidrogeno ionizado, pero se ven zonas amarillas que nos indican otras emisiones.
La imagen se realizó con un tubo de 600 mm OSV 200 RH AT y con una cámara QHY 600 M con filtros Ha7, OIII y azul en los cielos de Namibia (bortle 1).
20x 300" Ha7
29x 300" OIII
Procesado Pixinsight y PS
The Cat's Paw Nebula, NGC 6334, on the lower left, is a source of ionized hydrogen, hence its red coloration, it is located about 5,500 light years from us in the constellation of Scorpio, in the middle of the Milky Way, it has an extension of about 50 light years and occupies more or less like the full moon.
The Lobster Nebula, NGC 6357, lies in the same plane as NGC 6334, in Scorpio and is an emission nebula filled with bubbles containing young stars. At its core is one of the most massive stars on record, Pismis 24-1 with more than 300 solar masses.
In the image, the red color predominates, given the emission wavelength of the ionized hydrogen, but yellow areas are seen that indicate other emissions.
The image was made with a 600 mm OSV 200 RH AT tube and with a QHY 600 M camera with Ha7, OIII and blue filters in the skies of Namibia (bortle 1).
20x 300 "Ha7
29x 300 "OIII
Processed Pixinsight and PS
Reflection Nebulae IC2169, IC446, NGC2245 and NGC2247 which lie just west of the Cone Nebula in Monoceros. 12 hrs Lum 4hrs each RGB through Esprit150SX46 and 11 hours Ha through Esprit100.
Reflection nebulae reflect the light from nearby stars. The stars that illuminate them aren’t powerful enough to ionize the nebula’s gas, as with emission nebulae, but their light scatters through the gas and dust causing it to glow ? like a flashlight beam shining on mist in the dark.
Because of the way light scatters when it hits the fine dust of the interstellar medium, these reflection nebulae are often bluish in color.
A reflection nebula called NGC 1999 lies close to the famous Orion Nebula, about 1,500 light-years from Earth. The nebula is illuminated by a bright, recently formed star called V380 Orionis, and the gas and dust of the nebula is material left over from that star’s formation. A second well-known reflection nebula is illuminated by the Pleiades star cluster. Most nebulae around star clusters consist of material that the stars formed from. But the Pleiades shines on an independent cloud of gas and dust, drifting through the cluster at about 6.8 miles/second (11 km/s).
Image credit: NASA and The Hubble Heritage Team (STScI)
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #HubbleSpaceTelescope #HST #astronomy #space #astrophysics #solarsystemandbeyond #gsfc #Goddard #GoddardSpaceFlightCenter #ESA #EuropeanSpaceAgency #nebula #nebula
The nebular complex NGC 2170 and others in Monoceros. LHa RGB exposure for about 21 hours (14 nights from december to january). GSO RC 30 cms scope, camera Sbig STF8300/AO-8, from my backyard obs. (suburban skies). I spend many hours processing it to get low noise (mainly with the noisy Ha filter).
El complejo de nebulosas asociado a NGC 2170, en la constelación monoceros (unicornio). Imagen en L Ha RGB acumulando alrededor de 21 horas de exposición, en 14 noches entre diciembre a enero. Telescopio GSO RC 30 cms, cámara Sbig STF8300 con AO-8 desde mi observatorio casero en La Colonia, Illapel, Chile (cielos solo suburbanos). Requiró muchas horas de procesamiento para atenuar el ruido (principalmente del filtro Ha, muy ruidoso). Comentarios bienvenidos, Saludos !
Test shot: Pentax Astrotracer mode 3.
An uncropped image of the Flame and Horsehead nebulae in Orion. A 40 second exposure @ f5.6 ISO 1600 in quite ordinary atmospheric seeing using an HD PENTAX-D FA 150-450mm f4.5-5.6 lens on K1. Very minor PP; no noise reduction. The main purpose was to determine the extent of star trailing when imaging at the long end of this lens. Pleasing to see the stars as circles, although there's minor elongation towards the lower right of frame.
Please note this is one of two test shots for use with Pentax Forums' Astro group. Feel free to comment here, but no worries if you don't.
www.starkeeper.it/MW2Angel.htm
Mandel - Wilson is Unexplored Nebulae Project. Discovering, cataloging and imaging unexplored nebula of the Milky Way Galaxy. This Nebula called "Angel" Nebula is located on UMa constellation at RA 10h 39m DEC 73d 24m and is reported like "Ethereal area around central dense area." Composited from IFN, Integrated Flux Nebula : "Integrated Flux Nebulae is the term I've coined to describe high galactic latitude nebulae that are illuminated not by a single star (as most nebula in the plane of the Galaxy are) but by the energy from the integrated flux of all the stars in the Milky Way. These nebulae clouds, an important component of the Interstellar Medium, are composed of dust particles, hydrogen and carbon monoxide and other elements. " [Mandel-Wilson Catalog Page]
Optics: Takahashi FSQ-106EDXIII F/3.6 383mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: QSI-683WSG
Filters: Astrodon E Series Gen II LRGB 31mm
Guiding Systems: SX Lodestar
Dates/Times: 05-08-10 March 2016 / 06-09 April 2016
Location: Pragelato (Turin) - Italy
Exposure Details: L:R:G:B => 960:240:240:240 = > (64x15):(16x15):(16x15):(16x15) All Bin1 [num x minutes]
Cooling Details: -32 °C
Acquisition: Maxim DL/CCD, Voyager
Processing: CCDStack2+, PS CS5
Mean FWHM: 1.34 / 2.34
SQM-L: 20.21 / 20.58
Heckathorn-Fesen-Gull 1 (HFG1) and Abell 6 are a duo of planetary nebulae from the constellation Cassiopea.
The central star of HFG1 is a 14.5 mag binary star. It leaves behind a gas tail of at least 20 '. She is said to be around 10,000 years old.
The structure of HFG1 presents an arc of a circle opposite the tail, in the direction of movement of the nebula, which suggests that it is a shock wave front of matter interacting with the interstellar medium.
Abell 6 is an example of a bubble-shaped planetary nebula. However, it remains quite faint (Mag = 15). It emits more in OIII than in Ha.
For this image it's necessary a lot of signal of Ha and OIII:
Astrodon Halpha 31mm 5nm: 125x900" (31h 15') -10C bin 1x1
Astrodon OIII 31mm 5nm: 70x900" (17h 30') -10C bin 1x1
Riuscire a realizzare un mosaico astronomico non è cosa semplice.
Quando, come in questo caso, i pannelli sono molti l'acquisizione delle immagini richiede più giorni.
Ciò significa che occorrono più sessioni fotografiche, tutte con gli stessi parametri: ISO, tempo di posa, numero di scatti da combinare, ma anche qualità del cielo, seeing, temperatura ambiente.
Ovviamente si capisce che ciò non è solitamente possibile. Oltretutto altri fattori possono ancorchè complicare le cose: nuvole improvvise, umidità, posizione in cielo non idonea, problemi tecnici.
Per questo motivo questo mosaico ha necessitato di ben 4 anni per essere concluso. Avevo già caricato qui flic.kr/p/M5ihbd lo stesso mosaico mancante del 5° pannello acquisito quest'anno.
Per correttezza chiarisco che ho dovuto trovare in alcuni casi il miglior compromesso possibile, elaborando diversamente alcuni pannelli, proprio perchè uno o più parametri suddetti non erano gli stessi.
Comunque sono molto soddisfatto del risultato complessivo. Questa zona della Via Lattea nella costellazione del Cigno è molto bella: nubi stellari si intrecciano con nubi oscure e nebuose ad emissione. Nebulose famose come la NGC7000, IC5070 e IC1318 padroneggiano sugli innumerevoli filamenti rossi e le altre nebulose minori. Senza dimenticare i tanti ammassi che si confondono con la quantità impressionante di stelle tra le quali spiccano Deneb, Sadr e Fawaris (δCyg).
Qui il link con risoluzione astrometrica
nova.astrometry.net/annotated_full/3539120
___________
Being able to make an astronomical mosaic is not easy.
When, as in this case, the panels are many the acquisition of images takes more days.
This means that more photo sessions are needed, all with the same parameters: ISO, shutter speed, number of shots to be combined, but also sky quality, seeing, outdoor temperature.
Obviously we understand that this is not usually possible. Moreover other factors can even complicate things: sudden clouds, humidity, unsuitable sky position, technical problems.
For these reasons, this mosaic took 4 years to complete. I had already uploaded the same mosaic here flic.kr/p/M5ihbd but it was missing the 5th panel acquired this year.
To be fair, I clarify that in some cases I had to find the best possible compromise, processing some panels differently,
precisely because one or more of the aforementioned parameters were not the same.
However I am satisfied with the overall result. This area of the Milky Way in the Swan constellation is very beautiful: stellar clouds intertwine with dark clouds and emission nebulae. Famous nebulae such as the NGC7000, IC5070 and IC1318 master the countless red strands and other minor nebulae. Not forgetting the many clusters that blend with the impressive amount of stars among which Deneb, Sadr and Fawaris (δCyg).
Here the link with astrometric resolution
nova.astrometry.net/annotated_full/3539120
________
Lens: Zenit Giove-11A 135mm f/4
Camera: Canon EOS 550D (Rebel T2i) mod. Baader BCF
Mount: Sky Watcher HEQ5 Synscan
-1st panel (flic.kr/p/CCbNR7 )> 30x300s 1600iso / 21 dark / 21 flat / 21 bias
date 16/07/2015(24) - 18/08/2015(6)
-2nd panel > 23x300s 1600iso / 21 dark / 21 flat / 21 bias
date 13/08/2015 (17) - 30/06/2019 (6)
-3rd panel (flic.kr/p/CCi68y) > 33x300s 1600iso / 21 dark / 21 flat / 21 bias
date 13/08/2015 (13) - 19/08/2015 (20)
-4th panel > 22x300s 1600iso / 21 dark / 21 flat / 21 bias
date 20/08/2015 (10) - 12/09/2015 (12)
-5th panel > 20X300s 1600iso / 21 dark / 21 flat / 21 bias
date 03/08/2019
Total Integration 10h 40min
Locations (1st, 2nd, 3rd and 4th) monti Nebrodi, (Sicily-Italy) 1550m slm / Rifugio Margio Salice, monti Nebrodi (Sicily-Italy) 1250m slm
Location (5th panel): Rifugio Zarbata, monti Nebrodi (Sicily-Italy) 1100m slm
Elaborazione DSS + PSCS3.
Bright nebulae in Scorpius
Integration
2 minutes x 66 sub exposures- 132 minutes total
Equipment
Star Adventurer
Borg ED 45
Canon 550D (modded)
STC duo clip in filter
ASIAIR mini
Software
ASIAIR app
Astro Pixel processor
Photoshop CS6 with Noise Xterminator plug in
Location Bortle 6
Fujifilm X-T10, Samyang 135mm f/2.0 @ f2.0, ISO 1600, 40 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing in Astro Pixel Processor and GIMP, taken July 4 under Bortle 3/4 skies.
Aug 2. reprocess: Stretched lighter reds more to increase red and decrease pink color of emission nebulae.
Sept reprocess: Another re-edit, this time increasing red even more.
The brightest stars embedded in nebulae throughout our galaxy pour out a torrent of radiation that eats into vast clouds of hydrogen gas – the raw material for building new stars. This etching process sculpts a fantasy landscape where human imagination can see all kinds of shapes and figures. This nebula in the constellation of Cassiopeia has flowing veils of gas and dust that have earned it the nickname "Ghost Nebula."
Officially known as IC 63, this nebula is located 550 light-years away in the constellation Cassiopeia the Queen.
Image Credit: NASA, ESA, and STScI/Acknowledgment: H. Arab (University of Strasbourg)
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #HubbleSpaceTelescope #HST #astronomy #space #astrophysics #solarsystemandbeyond #gsfc #Goddard #GoddardSpaceFlightCenter #ESA #EuropeanSpaceAgency #galaxy
ccd: Moravian G3-16200 with EFW + OAG
filters: Optolong LRGB and Astrodon 5-nm Ha/O3
telescope: FSQ 106N f/5
mount: 10Micron GM2000 QCI
guider: Lodestar X2
exposure: L 30x10min + RGB 18x5min (all 1x1)
location: Les Granges, 900 m (Hautes Alpes, France)
software: TheSkyX Pro, CCD Commander, Pixinsight, PS CC
date: 10 Nov - 13 Dec 2020
One of the most iconic nebulae in the sky, the Horsehead Nebula in Orion, is part of a large, dark, molecular cloud. Also known as Barnard 33, the unusual shape was first discovered on a photographic plate in the late 1800s. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused mostly by thick dust, although the lower part of the Horsehead's neck casts a shadow to the left. Streams of gas leaving the nebula are funneled by a strong magnetic field. Bright spots in the Horsehead Nebula's base are young stars just in the process of forming.