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Nuova elaborazione di Sh2-132, la Lion Nebula bel Cefeo in Hubble Palette SHO dove il rosso rappresenta lo zolfo due volte ionizzato, il verde l'idrogeno alfa e il blu l'ossigeno 3 volte ionizzato.
Pose guidate con più filtri da 600 secondi: 10 ore e 20 minuti con dualband Antlia ALP-T 5nm, 12 ore e 50 minuti con Optolong L-Synergy, mentre per le stelle un'ora in pose guidate da 60 secondi con filtro broadband SV260. Telescopio newton 150/600 con correttore Tecnosky 0.95x, camera Tecnosky Vision 571C, montatura Eq6-R Pro, elaborazione in Pixinsight.
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New processing of Sh2-132, the Lion Nebula in Cepheus in the Hubble Palette SHO, where red represents doubly ionized sulfur, green represents alpha hydrogen, and blue represents triple-ionized oxygen.
Guided exposures with multiple 600-second filters: 10 hours and 20 minutes with the Antlia ALP-T 5nm dual-band filter, 12 hours and 50 minutes with the Optolong L-Synergy, and for the stars, one hour in 60-second guided exposures with the SV260 broadband filter. 150/600 Newtonian telescope with Tecnosky 0.95x corrector, Tecnosky Vision 571C camera, Eq6-R Pro mount, processing in Pixinsight.
The Gecko Nebula, officially cataloged as LBN 437, is a reflection nebula located within the constellation Lacerta (appropriately meaning "the Lizard") that resembles a gecko crawling across the sky. The nebula is illuminated by nearby young stars, reflecting light in delicate, bluish shades.
It is situated near the much larger Sh2-126 emission nebula, which is visually marked by striking red hydrogen-alpha filaments that overlap and create a striking contrast with LBN 437.
This nebula is a popular target for astrophotographers due to its complex structure, which includes both dark molecular clouds (beige-brown here) and reflection regions that are illuminated by interstellar light, offering unique textures and colors.
A total integration of 202 * 180s = 10.1 hours with the Neodymium filter and an OSC camera to capture both the reflection and extra Ha simultaneously; processing in PixInsight included extracting a synthetic Ha layer, boosting the contrast and re-blending together in a HaRGB palette.
Prints, cards and more are available via the website: shiny.photo/photo/LBN-437--The-Gecko--Lacerta-447f51b975e...
English below
Nuova versione della Nebulosa Grotta (Sh2-155 o C9).
Composizione in Hubble Palette con i filtri dualband.
Le pose guidate da 600 secondi sono state:
67 scatti con filtro Antlia ALP-T 5 nm, per H α e O III;
87 scatti con filtro Optolong L-Synergy 7nm, per S II e O III.
Per le stelle, 1 ora di integrazione in pose da 60 secondi con filtro broadband SV260.
Strumentazione utilizzata:
Telescopio Newton 150/600 con correttore Tecnosky 0.95×
Camera Tecnosky Vision 571C
Montatura Sky-Watcher EQ6-R Pro
Elaborazione in PixInsight.
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New version of the Cave Nebula (Sh2-155 or C9).
Composition in Hubble Palette with dual-band filters.
The 600-second guided exposures were:
67 shots with the Antlia ALP-T 5 nm filter for H α and O III;
87 shots with the Optolong L-Synergy 7 nm filter for S II and O III.
For the stars, 1 hour of integration in 60-second exposures with the SV260 broadband filter.
Equipment used:
150/600 Newtonian telescope with Tecnosky 0.95× corrector
Tecnosky Vision 571C camera
Sky-Watcher EQ6-R Pro mount
Processed in PixInsight.
The Wizard Nebula.
Still a lot to learn about editing, but I finally feel like I can get something back from my data now.
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Askar 71f at 490mm
ZWO ASI533MC
Optolong L-eNhance filter
Processed in Siril, GraXpert and Ps
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#astropho #astrophotography_ #astrophotography #astrophotographer #deepskyimaging #deepskyobject
Júpiter y el Río lechoso.
En el centro de esta imagen se puede apreciar una “estrella” brillante de color blanco, resulta ser el planeta gigante gaseoso Júpiter, ubicada actualmente en la constelación de Ofiuco. A la izquierda lo acompaña la Via láctea, se le llamo así ya que al ojo desnudo se aprecia como una mancha blanca que atraviesa el cielo nocturno ya que nuestros ojos no tienen la capacidad de ver los colores de estas estructuras que están a miles de años luz, por eso, a través de la cámara se pueden desfigurar los colores reales de estas estructuras. El color amarillo-anaranjado son cientos de miles de estrellas viejas ubicadas hacia el centro galáctico, las nebulosas negras son nubes densas que se encuentran entre nosotros y el centro galáctico, al ser tan densas bloquean la luz que se encuentra detrás de estas nubes, los colores rojizos y rosados son principalmente regiones de formación estelar, regiones Hll, donde las estrellas masivas y brillantes ionizan el gas circundante haciéndolas brillar de estos colores.
Imagen capturada el 12/05/2019.
Exif:
📷: Sony A77
Sigma 10-20 F3.5
20mm, F4, Iso 800
21 frames x 122s
Apilada por Sequator
Procesada con adobe Lightroom y Photoshop.
Autor: Diego Tapia
a two-pane mosaic in hydrogen alpha.
Captured more of this awesome nebula and combined the images, it kinda looks more like its name now, i think.
H-alpha only.
ED80/ATK16HR - Astronomik ha clip filter.
5 min exposures x approx 10 each pane.
Time: 2019/01/31
Place: York, Western Australia, Australia
Equipment: Canon 6D (mod) +Sigma 135art
Parameter: ISO1600, F2.8, 60s*78
Sh 2-129 (also known as the Flying Bat Nebula), is a large emission nebula and H II region located in the constellation Cepheus.
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This is just the hydrogen data (Askar C1 9.5 hours of it) - skies have been so poor it's taken me weeks to get this. I'll work on the O iII data next year.
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Askar 71f with 0.75 reducer, Askar C1 filter, Sky-Watcher Gti driven by an ASI Air and a ZWO533MC Pro doing imaging duties.
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#astropho #astrophotography_ #astrophotography #astrophotographer #deepskyimaging #deepskyobject
Cygnus is a golden mine of objects. I took on this attractive cluster because my location allowed me to image it. An open cluster discovered in 1893 by Thomas Espin. It has somewhere around 850 stars and is approximately 1.6 billion years old. Interestingly, its exact distance is unknown, but it is assumed to lie behind the HII region (Gamma Cygni Nebula IC 1318) surrounding Sadr.
Addition to the open cluster there is a beautiful Planetary nebula discovered in 2006. by Dana Patchick.
Location: New Zagreb,Popovec, Croatia
Telescope: SW 130PDS
Camera: ZWO ASI585MC PRO
Filter: Optolong L-Ultimate 1.25'' | ZWO UV/IR 1.25''
Mount: AstroBobo HEQ5 Pro (Mod by Leviner)
Guding: ZWO ASI120MMS + SVBONY 120MM F4
Exp:
253x300s (21hr5min) - L-Ultimate
123x120s (4h6min) - UV/IR
Total: 25h11min
This is a re-processing of my data acquired in summer. The picture shows Lagoon and Trifid nebulae (M8 and M20) in Sagittarius.
Every time I study something new in post processing, I try to revisit my old projects and try to improve them. This time it is a new star reduction script which works great for widefield shots like this.
Fernando de Magallanes and his crew had more than enough time to study the southern skies during their famous trips around the world. As a result, two diffuse objects in the shape of a cloud, not visible to the inhabitants of the northern hemisphere, are now known as Las Nubes de Magallanes.
These clouds of stars are small irregular galaxies, satellites of our great
Milky Way galaxy.
The Large Magellanic Cloud (LMC, by its most common acronym in English), photographed
above, it is only about 180,000 light-years away - the only known galaxy closer is the Sagittarius Dwarf.
Both the LMC and the Small Magellanic Cloud (SMC) are linked to the Milky Way by a stream of cold hydrogen.
Author: Mario Poblete
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小鏡星系拍攝大作戰
年春初基本上是星系拍攝季節，沒有長焦鏡頭 (實際 300mm 以下對於天文攝影來說仍是廣角) 確實會失去拍攝動力，每張相片也只有丁點大小的深空天體，再多的曝光時間也沒有高的分辨率。是次旅程可以拍攝的目標不多，今次就以新的組合嘗試拍攝 M81 及 M82 星系。幸好高山環境加上高透明天的天氣令拍攝過程順利，只是拍攝時間不足。星空除了星系、星雲等外，在漆黑的背景實際也彌漫著不少暗星雲或暗塵，正式學名是 Integrated Flux Nebula (IFN)。IFN 星際雲的一種，其高密度可能會遮蔽發射星雲或反射星雲的光，如馬頭星雲。IFN 看似是一堆灰塵，不知道的還以為會是天空有雲層走過。
以往單反相機單張拍攝看不見的 IFN 也借助了 Sony A7S 的高 ISO 拍攝能力可以約略見到，需要較長的總曝光時間並經過疊合後才稍為清楚看見。實際上 IFN 在星空上十分常見，只是亮度問題，較為容易見到的是 M45 昂宿星團。不過 IFN 拍攝是地方先決的，希望今年天氣容許有更多拍攝。
Photo by siuba
Location: Yinna, China
Date：2016/03/02
Camera: Sony A7S
Telescope：Takahashi FS-60CB w/ Reducer (264mm f/4.2)
Tracker：Skymemo RS
Setting: 300s x 58
Process：Photoshop CC, PI
香港拍攝難度：★★ (五星最高)
建議鏡頭焦距：400mm+
適合拍攝月份：1 月 ~ 5 月 (香港)
大概方向：北斗七星附近
First narrowband mosaic for me.
M: Pegasus NYX-101
T: WO GTF81 Refractor
C: ZWO ASI533MM-Cooled
G: OAG and PHD2
GC: ZWO ASI120MC
RAW16; FITs
Temp: -10 DegC
Mosaic: 4 x Panels of:
Ha: Gain 100; Exp: 6 x 300s
Oiii: Gain 100; Exp: 6 x 300s
Sii: Gain 100; Exp: 6 x 300s
Frames: 72 Lights; Darks/DarkFlats/Flats
95% Crop
Capture: NINA
Processed: APP [HOS-1]; PS.
Sky: 50% moon, slight breeze, no cloud.
This is my early try of Rosette this season. I collected data during two nights. Started in Abastumani on October 19th, but could only capture H-alpha channel as the sun rose. I left Abastumani the next day but wanted to complete this project, so I drove outside Tbilisi again last night to collect the remaining channels. Here is it, the result of 2h32min total exposure!
Camera: QSI583
Scope: TS80APO 480mm f/6
Mount: iEQ30 Pro
with guiding
H-alpha 16*300sec bin 2x2
R,G,B 8*180sec bin 2x2
assembly & processing in PixInsight
little retouch in Lightroom
Special thanks to David Dvali
Taken with a TMB92L, Hutech-modified Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 50 240-second light frames and 28 240-second dark frames, all at ISO 800, as well as 32 flat and 50 bias frames. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
Finally some good weather around here. I managed to capture 1h of this magnificent emission nebula.
Canon T6i astromoded + Optolong L-Pro Clip EOS + Long Perng 66/400mm + ioptron CEM25P
63x60s, ISO 1600.
150 darks, bias em flats each.
Maybe I'll try to add more light to this project, if the sky allow.
Here an image of the Cave Nebula, catalogue reference Sh2-155, an emission nebula in the constellation of Cepheus. It is embedded in a larger region containing emission, reflection and dark nebula. The brightest part of the nebula has an apparent magnitude of 7.7, being situated about 2400 ly from Earth. The somewhat unusual rendition shown here is derived from 6 filters in total: Hydrogen-alpha, sulphur-II and oxygen-III ultra-fast narrowband filters and g´, i´, and z-s´ photometric filters. The g´ filter (400-550nm) captures nicely the reflection nebula, whilst the i´ (700-845nm) and z-s´ (820-920nm) filters transmit infrared light at different wavelengths. The data from these two filters then needs to be colour-mapped to a visible region of the spectrum. The following colour mapping has been applied to create this particular image: g´ mid-blue, O-III cyan, Ha yellow, S-II sunset orange, i´ crimson, z-s´ purple. Stars are from the monochrome S-II integration.
Calibration, Registration, Integration in APP, further processing to taste in PS.
The viewing conditions were not as good as was hoped (Rhön, Germany) with intermittent thin cloud and dew that fell with a particularly heavy "thud" 😉 , still most of the data was usable ...
Total time: 11.5 hrs / ISO 400
Celestron RASA11
10Micron GM1000 HPS
SIGMA fp L (monochrome)
Baader ultra-fast narrowband and SLOAN/SDSS photometric filters
A galaxy no less :)
NGC 2903 is a barred spiral galaxy about 30 million light-years away in the constellation Leo, discovered by William Herschel. And it's a faint bugger, or at least the outer bits are - too faint for my pathetic skies really.
This is the first image I've done using dithering. Not sure how much difference it made as I wasn't able to give it enough subs anyway. Certainly increased the session time, that's for sure! I'll reserve judgement on dithering :)
SW ED80/EQ5
Canon 500D modded, Baader Neodymium filter
3 hrs 15 mins of 180 sec subs, iso 1600
Acquisition: APT
Guiding: Quickcam Pro4000/9x50 finderscope, PHD/EQMOD/AstroEQ
Stacked in DSS (3 x drizzle) and processed in CS5.
Data Acquired: Telescope live 25 light frames all in FITS format stacked in Deep Sky Stacker and then processed in photoshop. Here are two versions the one highlighting the outer edges more is processed in Lightroom mobile
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy approximately 2.5 million light-years from Earth and the nearest large galaxy to the Milky Way.
Total exposure: 4h 10m 0s
no.of frames - 25
M31 Andromeda galaxy is the nearest large galaxy next to our own Milky Way. It contains around 1 trillion stars and is 2.5 million light years away from Earth.
⏱️ 10h36m (159 x 4min ISO 400 frames)
Kaunas, Lithuania (Bortle 7 skies)
📅 December 2021 - January 2022
Setup:
📷 Canon EOSR unmodified
🔭 Skywatcher Explorer 150PDS
️ Baader MPCC and IDAS LPS-D2 filter
⚙️ Skywatcher HEQ5 Pro
↖️ Guiding with ZWO ASI 120MM Mini + ZWO 30mm Mini Guide Scope + PHD2
💻 Stacked and edited with DeepSkyStacker and PixInsight
Voici la Voie lactée se levant derrière le Château de Vêves en Belgique.
Le château de Vêves, construit au bord d'un petit affluent de la Lesse, a des origines anciennes.
En effet, Pépin de Herstal y avait déjà élevé une villa dans la seconde moitié du VIIe siècle afin d'être plus près de l’ermitage de Saint Hadelin à Celles.
La villa fut ensuite transformée en une petite forteresse par ses différents successeurs au IXe siècle. Cette forteresse fut rasée en 1200 et reconstruite en 1220 par la famille Beaufort qui en fit un château-fort plus puissant.
Détruit par les Dinantais au xve siècle et rétabli aussitôt, le château eut encore à subir les ravages causés en 1793 par les révolutionnaires français.
Au XVIIIe siècle, la famille de Liedekerke-Beaufort restaura le château, lui donnant son aspect actuel.
Avec les châteaux de Beersel, de Bouillon, de Corroy, de Horst, de Gand et de Lavaux, il constitue un des plus beaux châteaux médiévaux de Belgique.
En janvier 2018, le château de Vêves remporte le prix du patrimoine préféré des wallons.
-📷 : Canon EOS R6 Mk II.
-Canon 16-35mm f/2.8.
⚙️: 30 secondes d'exposition, ISO 2500.
-️️ : Traitement : Lightroom & Photoshop.
-📅 : J'ai pris cette photo le 10 Mai 2024 à 3h30.
NGC 6727
An extremely intriguing area of the night sky. NGC 6727 is a combination of dark, reflection and emission nebula, with designations IC4812, NGC 6726 and NGC6729, along with the globular cluster NGC 6723 in the constellation Corona Australis that is approximately 500 light years distant. The extended field shows several regions of faint Ha-emission as well as several small reflection nebula. Of particular note is the beautiful semi-circular Ha-emission peppered with some faint wisps of reflection nebula (not OIII), excited rather than illuminated by the nearby star and demonstrating quite profoundly that hydrogen is a major constituent of the surrounding dust. Also to be seen is a relatively "large" spiral galaxy at the bottom of the nebula (Designation: PGC-62700, 250.000.00 light years distant). The Region NGC 6727 is actually the tip of a considerably larger dust cloud (4 panel mosaic) extended for quite away beyond the right hand edge of the single image. OIII and SII emissions are particularly present in the bright core of the system. A wonderful target and certainly not the last time I will be paying a visit.
The data was collected by myself using a remote rented system in Australia (Martin Pugh)
Takahashi FSQ106 EDX fitted with a 645RD F3.6 reducer
Player One Poseidon-m Pro Camera
10 Micron GM1000HPS
Total acquisition time (35,75 hrs for the single close-up image):
R: 17400 sec
G: 19800 sec
B: 15000 sec
H: 30600 sec
O: 22500 sec
S: 23400 sec
Image Of The Day 14.08.2024 - Astrobin
Small Magellanic Cloud in Ha and OIII Narrowband
For a ”Northern Lad” (in its broadest sense) seeing the SMC (visible in the Southern Hemisphere) is a wonderful new experience. This rendition using only Hydrogen alpha and Oxygen III emission data shows a myriad of structures - Bubbles of hydrogen gas (red/orange) sometimes filled with wisps of oxygen (blue) all driven by the intense radiation of newly forming stars. Massive tendrils that mark the remains of one Supernova after another … awe inspiring indeed. The massive galactic star field has been heavily reduced (in intensity) to enable the narrowband emission data to be more visible.
The data was collected on two wonderful visits to the Hakos Guestfarm, Namibia.
Celestron RASA 11
10 Micron GM1000 HPS
Moravian C1X 61000-M
The image is a three panel mosaic.
Also known as the 'Eye of
God' or 'The eye of Sauron', The Helix Nebula is a planetary nebula located in the constellation Aquarius, lying at an approximate distance of 700lyrs away and a radius of 3lyrs across.
What we are seeing in this image is a star at the end of it's evolutionary process on its way towards becoming a white dwarf.
The Nebula has an apparent magnitude of 7.5, but is not visible to the naked eye easily, due to it's low surface brightness.
Shot from Hunter Valley Area north of Sydney Australia in Sept 2017
Exposure Time: 5mins per exposure/shot equalling:
2hrs 30mins of Luminous Channel
1hr 15mins each of RGB at 3hrs 45mins for colour channels
Total Image exposure of : 6hrs 15mins
Notes: this image was taken under difficult sky conditions and also could have done with alot more data, however the skies decided to not clear enough for me to get more data so there we have it for this year at least.
Equipment Used:
Telescope: William Optics 110Triplet
Mount: Paramount MYT
Camera: Atik One+OAG
Filters: Astronomik
Software Capture: The SkyX
Software Processing: Pixinsight
44x60" subs with Canon eos 600d on 6 inches newtonian and Lxd75 mount. Capture with Nina and PHD 2 GUIDING. Processing with SIRIL and GIMP
IC1396 again, this time put through astro action 'ha->false colour black space'' as a starting point then tweaked for a better, more natural looking image.
NGC 891 est une galaxie spirale vue par la tranche dans la constellation d'Andromède. Elle a été découverte par William Herschel en 1784.
Autour on distingue de nombreuses petites galaxies, dont les NGC 906, 909, 910, 911, 912, 913... rassemblées dans un amas (Abell 347)
Photo prise le 13/09/2020
77*300s : 6h25'
Newton SkyWatcher 200/1000
Monture EQ6-r pro
Canon 1000D défiltré partiel
Correcteur de coma Baader MPCC Mk III
Autoguidage OAG + ZWO ASI 290mm mini
ASIAIR Pro
PixInsight + Photoshop CC
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早兩天難得半晚天清，來試試每年秋季也要拍一下的M31。 M31（仙女座星系 Andromeda Galaxy） 是我們的一個鄰居星系，距離我們約250萬光年，大小約是銀河系的兩倍。因相信跟我們銀河系很相似，而常常被作為研究比較之用。
曝光訊號不太夠細節有點粗，留待日後好天再增加一點曝光時間吧！
Photo by Michael Leung
日期：5/9/2015 @ 北潭涌
相機：CentralDS 600D @ -1c
鏡頭：Borg 90FL w/0.72x reducer 360mm f/4
追星儀：iOptron ZEQ25
導星：Guided QHY5LII Mono
其他：IDAS LPS-D1 Filter
設定：ISO 1600, 240sec x 23 (Darkframe / Bias)
NGC 6188 / NGC 6193 / NGC 6164 / NGC 6165
In the heart of the southern skies, nestled within the constellation Ara, approximately 4000 light-year from Earth, lies a celestial story of life and death played out in the glowing embrace of the nebulae NGC 6188 and NGC 6164, illuminated by the brilliant stars of the open cluster NGC 6193. NGC 6188 stretches as a veil of stardust, where newborn stars emerge from towering pillars of dark gas, sculpted by the intense winds of their luminous companions in NGC 6193, into figures commonly known as the “Fighting Dragons”. Together the “Dragons” overlook the symmetrical lobes of the “Dragon’s Eye“, NGC 6164 and NGC 6165, which surround the massive O-Type star HD 148937. This star, in an advanced stage of its life has ejected material, that it now illuminates, with a further delicate outer viel of Oxygen (blue) being clearly visible. Together the region shows many aspects of the Vita Cealestis.
The second (and final) data set that was collected by myself using a rented remote system in Australia (Martin Pugh)
Takahashi FSQ106 EDX fitted with a 645RD F3.6 reducer
Player One Poseidon-m Pro Camera
10 Micron GM1000HPS
The image is a 3 panel mosaic with a total acquisition time of 62 hrs
M16 aka The Eagle Nebula located in the central region of the Milky way. It is made of diffuse emission nebula, the region is about 7500 Light-years from our place and is very active in star formation. I took it during my April 2019 visit to Namibia. The region is also famous because of its central region names "Pillars of Creation" when was taken by the Hubble telescope.
In the editing part I used only the RGB photos and for the Luminance part I used the Red channel to point the details, All the RGB channels taken in BIN1.
So it is RRGB photo :)
Photo info:
Red as Luminance BIN1: 3x5min = 15min
RGB BIN1: 3x5Min for each channel for color.
Total RGB - 45Min
Equipment used:
Telescope: ASA 12'' F3.6
Mount: DDM 85 Unguided
Camera: FLI 16200 Mono
Filters: Astrodon
Thanks for watching
Haim Huli
Imagine that you could ignore all the stars in the sky and see only the nebulae on the milky way.
How would it be?
Well, I captured IC 2944 on March 31st, and removed the stars to put more emphasis on this incredible emission nebula.
The Running Chicken Nebula, which looks more like Jar Jar Binks (I read that in a reply from my Twitter and I loved it!) is an emission nebula very close to Eta Carina, but much more tenuous!
This capture was made between the 30th and the 31st of March, with the moon practically 100% iluminated!
This was only possible due to Optolong's L-Enhance filter.
EXIF:
88x180s, ISO 1600 (4h24 total exposure)
Canon T6i modified
Long Perng 66/400mm Doublet
iOptron CEM25P
Guidance with QHY5L-II and ZWO 60/280
Optolong L-Enhance Clip in
Obs: I know that the removal of the stars is something very controversial, but take it easy. I also prefer the version with the stars, but I posted this one just for fun. 😉
Total exposure : 43 minutes
86x30 sec subs(no dark,bias flat frames)
Camera : Nikon D5600
Lens : 70-300 mm kit lens @300mm f6.3
Mount : iOptron Skyguider pro
Bortle scale :Class 4
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蜘蛛星雲 Tarantula Nebula NGC2070
蜘蛛星雲位於劍魚座大麥哲倫星系邊上，離我們於約十六萬光年。它是本星系群中已知的最活躍最大的造星區，直徑近1000光年。如果把它拉近放到獵戶座大星雲 (離我們最近的大形造星區) 的位置，即離我們約 1500 光年處，它會在天空中占據 30 度約 60 個滿月的大少， 光度甚至可在地上做成影子。
近年有研究表示，這個區域的造星運動這麼劇烈，是由於多個星團碰撞結合所引致，甚至可能是大小麥哲倫星系的重力牽近所造成的。
Photo by Michael Leung
Location：Lake Pukaki, New Zealand
Camera：CentralDS 600D @ -15c
Telescope：Borg 90FL / 0.72 Reducer (360mm f/4)
Mount：iOptron ZEQ25 guided QHY5LII Mono
Exposure：ISO1600, 240s x11 (Core 30s x20)
拍攝難度：★★ (五星最高)
建議鏡頭焦距：300mm+
適合拍攝月份：9月 ~ 3月 (南半球)
大概方向：大麥哲倫星系附近
A large but relatively faint, emission nebula in Vulpecula. it contains the small reflection nebula NGC 6820 and the open cluster NGC 6823. It is most well known for the prominent pillar in the brighter core, though many other fascinating substructures can be seen in the dimmer parts of the nebulosity. The main body of the nebula is crossed by a dark cloud.
The image was taken with Ha (mapped to red), S-II (mapped to yellow/green), O-III (mapped to cyan) ultra-narrowband filters as well as with the g’ photometric filter (mapped to blue) to pick up the faint reflection nebulosity. The O-III signal is weakest but present in the bright core. Stars are from the sulfur-II plates and are thus without colour. Processing in AstroPixelProcessor, StarTools, PixInsight and Photoshop.
SIGMA fp L (Monochrome)
Celestron RASA 11
10 Micron GM1000 HPS
4,5 hrs, ISO 400, 620mm, F2.2
English:
The great Carina nebula, also known as NGC 3372, is a jewel of the southern sky that spans more than 300 light-years and one of the most extensive regions of the galaxy where stars form. In the same way as the larger Orion nebula, smaller and more northern, the Carina nebula is easily visible to the naked eye, although it is at a distance of 7,500 light years (5 times farther).
This magnificent telescopic close-up reveals details of the bright central filaments of the interstellar gas region and clouds of dust. The Carina nebula hosts young and extremely massive stars, such as the stars of the open cluster Trumpler 14 (in the center) and the still enigmatic variable Eta Carinae, a star with more than 100 times the mass of the sun. Eta Carinae is the brightest star just below the dusty Nebula of the Keel (NGC 3324). The X-ray images indicate that the great Carina nebula has been an authentic supernova factory; in fact, Eta Carinae could be on the verge of a supernova explosion.
Author: Mario Poblete
Español: La gran nebulosa de Carina, también conocida como NGC 3372, es una joya del firmamento meridional que abarca más de 300 años luz y una de las regiones más extensas de la galaxia donde se forman estrellas. Del mismo modo que la gran nebulosa de Orión, más pequeña y septentrional, la nebulosa de Carina es fácilmente visible a simple vista, aunque se encuentra a una distancia de 7.500 años luz (5 veces más lejos).
Este magnífico primer plano telescópico revela detalles de los filamentos centrales brillantes de la región de gas interestelar y las nubes de polvo. La nebulosa de Carina acoge estrellas jóvenes y extremadamente masivas, como las estrellas del cúmulo abierto Trumpler 14 (en el centro) y el todavía enigmática variable Eta Carinae, una estrella con más de 100 veces la masa del sol. Eta Carinae es la estrella más brillante que hay justo debajo de la polvorienta nebulosa de la Quilla (NGC 3324). Las imágenes de rayos X indican que la gran nebulosa de Carina ha sido una auténtica fábrica de supernovas ; de hecho, Eta Carinae podría encontrarse al borde de una explosión de supernova.
Autor: Mario Poblete
An attempt at narrowband imaging. The meade DSI is a bit too old and noisy to take 15 minute exposures that are needed for this nebula's faint outer 'wings' - also my sketchy alignment done manually in photoshop has caused the stars to have strange colour edges. But overall i think its my best m27 to date, quite pleased to have picked up some of the faint wings. Really hope to get a better camera for this kind of work. :)
ED80 - Meade DSI mono - astronomik ha clip filter, baader OIII. on EQ6. autoguided with 9x50 finder and ZWO ASI20MC - PHD2, captured with Nebulosity. Stacked in DSS. processed in Ps.
6 x 600 sec halpha
6 x 900 sec OIII
8 x darks.
This is my first image using my new autoguider.
Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 29 120-second light frames and 21 120-second dark frames, all at ISO 800, as well as 15 flats. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop. Diffraction spikes courtesy StarSpikes Pro.
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冬季銀河東昇
冬季的王者獵戶座在入夜後徐徐在東面升起來，在他左面就是銀河部分。銀河的塵埃結構及內裡的星雲可以透過長曝光拍下來，如果拍攝時使用了 APS-C 廣角鏡頭，還可以容下更多星雲、星座，令相片更為壯觀。
除此之外冬季銀河附近實際也伴隨著不少深空天體，如馬頭星雲、獵戶座大星雲、巫婆頭、神仙魚、玫瑰星雲、聖誕樹，遠處還有金牛座內的加州星雲及昂宿星團等等，構成了豐富的冬季銀河畫面。
Photo by - Timmy Wong
地點：Galloway Forest Park, Scotland
相機：Canon 450D (mod)
鏡頭：Canon EF17-40@f/4
Taken with a TMB92L, Canon T3i DSLR, Orion SSAG autoguider and 50mm guidescope, and Celestron AVX mount. Consists of 59 90-second light frames, 40 90-second dark frames, 40 10-second light frames, 20 10-second dark frames, and 40 5-second exposures, all at ISO 800, as well as 15 flats. Captured with BackyardEOS, stacked in DeepSkyStacker, and processed in Photoshop.
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季節、時間限定的南天大星雲
到南半球地區星攝，The Eta Carinae Nebula (船底座大星雲) 相信是首選。由於此星雲很光很大，所以也是十分容易拍攝！雖然是南半球的深空天體，但在香港會出現「季節限定」，並且拍攝它並不是十分困難，難度在於天公能否造美...
相片中的 Eta Carinae 在拍攝時已經是大約最高點，離水平約 7 度多仰角，所以大氣的透明度是一個十分重要因素，即使萬里無雲但有霧霾的話，難度會增加。可幸的是拍攝時候的天氣不錯 (春天來說)，實屬難得。
Photo by - Timmy Wong
地點：萬直水庫東壩
追星儀：哈雷 HL-1
相機：Canon EOS-M mod.
鏡頭：Canon EF 16-35mm f2.8L
設定：f/4, ISO1600, 180s x4
濾鏡：Astronomik CLS CCD
處理：PI, PS
香港拍攝難度：★★★ (五星最難)
適合鏡頭焦距：50 ~ 300mm
適合拍攝月份：1 月 ~ 3 月 (香港)
A section of NGC 7000 called The Wall.
A large, relatively bright emission nebula in Cygnus.
The whole nebula resembles the map shape of North America, hence the name.
Taken between thick passing cloud, in good seeing conditions. Shot in Hydrogen alpha light. Start of a mosaic.
10 X 5min subs. + 6 x Darks.
ED80 - atik16hr - EQ6 - finderguider - asi120mc.
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船底座星雲 Carinae Nebula NGC 3372
去年首次到南半球攝星，立馬花上兩晚來拍拍這個壯觀的船底座星雲。可惜沒遇上連續好天氣，未能再補上 Ha 窄頻，沒有好好表現出它漂亮的雲氣結構。
船底座星雲距離我們約 7500 光年，半徑約 4 百多光年。視角大小達 2 度 x 2 度，比起我們熟悉的 M42 看來要大上四倍 (M42 距離我們約 1300 光年，半徑 12 光年，視角大小約 1 度 x 1 度)。圖中還可以見到幾個有趣的天體：星雲中央的亮星海山二是銀河系中已知的最亮的恆星；左下方近圓形的 NGC 3324 加夫列拉．米斯特拉爾星雲；和再靠左角落的 NGC 3293 寶石星團。
Photo by - Michael Leung
Location：New Zealand - Lake Tekapo
Date: 2015/04/17-18
Mount: iOptron ZEQ25 guided QHY5LII Mono
Camera：CentralDS 600D @ -17c
Telescope：Borg 90FL w/0.72x reducer (360mm f/4)
Setting：ISO1600, 240s x50 (Core 30s x25), Dark, Bias
Process: PI, PS CC
香港拍攝難度：★★★ (五星最難)
適合鏡頭焦距：50 ~ 300mm
適合拍攝月份：1 月 ~ 3 月 (香港)
The Wishing Well Cluster, formally known as NGC 3532, is a breathtaking open star cluster nestled in the southern constellation of Carina, lying about 1,300 light-years from Earth. With over 400 stars densely packed into its luminous heart, it spans a region roughly 50 light-years across, shimmering like a scattering of silver coins—hence its poetic nickname. The cluster contains a rich mix of hot blue giants and older, cooler stars, and it gleams with such brightness that it is easily visible to the naked eye under the dark Namibian skies.
NGC 3532 lies in a star-forming region of the Milky Way, surrounded by a vibrant complex of emission nebulae and molecular clouds. Among these are the RCW 54b, 54c, and 54d regions—dense knots of glowing hydrogen gas within the larger RCW 54 complex. Each of these nebulae is a cradle of ongoing star formation, rich in ionized gas and dust, energized by the ultraviolet radiation from hot young stars.
RCW 54d is a relatively compact, bright region, (upper Left), appearing like a glowing ember embedded in the interstellar medium. It is likely powered by a small group of O or B-type stars buried within.
RCW 54c extends more diffusely, (left hand side), with wispy filaments and darker dust lanes weaving throughout. The gas flows towards the bottom of the image hinting at complex magnetic fields and turbulent gas dynamics.
RCW 54b, the most nebulous and irregular of the group, (right hand side) is partially obscured by foreground dust but still radiates a soft, ruddy hue. It may be in an earlier or less active phase of stellar birth than its siblings.
Together, the Wishing Well Cluster and the surrounding RCW 54b–d nebulae form a jewel-like tableau in the Carina region, where the galaxy’s spiral arm folds into a corridor rich with gas, dust, and stellar activity. The entire field of view is a tapestry of light and structure, revealing the chaotic beauty of a galaxy alive with stellar creation ...
PlaneWave Delta Rho 350
10 Micron GM2000 HPS
Moravian C5S-100M
The image is a two panel mosaic. Total acquisition time: ca. 16 hrs 46 Minutes
This image is not at full resolution, but still best viewed LARGE.
Click on the image to ZOOM In and Out".
A wide field view of the Eagle Nebula (catalogued as Messier 16, M16, or NGC 6611, and also known as the Star Queen Nebula and The Spire). M16 is a young open cluster of stars in the constellation Serpens.
The Eagle Nebula is part of a diffuse emission nebula, or H II region, which is catalogued as IC 4703. This region of active current star formation is about 7000 light-years distant. A spire of gas that can be seen coming off the nebula in the north-eastern part is approximately 9.5 light-years or about 90 trillion kilometers long.
Both the "Eagle" and the "Star Queen" refer to visual impressions of the dark silhouette near the center of the nebula, an area made famous as the "Pillars of Creation" photographed by the Hubble Space Telescope. The nebula contains several active star-forming gas and dust regions, including the Pillars of Creation.
The cluster associated with the nebula has approximately 8100 stars, which are mostly concentrated in a gap in the molecular cloud to the north-west of the Pillars.
The size, distance and age of the Universe is far beyond human comprehension. The known Universe is estimated to contain over One Billion Trillion stars, many with planets just like our star the Sun.
1 000 000 000 000 000 000 000
About Emission nebulae:
Emission nebulae are glowing clouds of interstellar gas which have been excited by some nearby energy source, usually a very hot star. The red light seen in this picture is glowing hydrogen captured in the Hydrogen-Alpha (Hα) Infrared wavelength of light at 656nm.
About this image:
This image consists of 8 x 3 minute exposures at ISO 6400. Photographed in the rural dark skies of the Karoo (Northern Cape, South Africa).
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:
GSO 6" f/4 Imaging Newtonian Reflector Telescope.
Baader Mark-III MPCC Coma Corrector.
Astronomik CLS Light Pollution Filter.
Orion StarShoot Autoguider.
Celestron AVX Mount.
Aurora Flatfield Panel.
Celestron StarSense.
Canon 60Da DSLR.
Tech:
Guiding in Open PHD 2.6.1.
Image acquisition in Sequence Generator Pro.
Lights/Subs: 8 x 180 sec. ISO 6400 CFA FIT Files.
Calibration Frames:
50 x Bias
30 x Darks
20 x Flats
Pre-Processing and Linear workflow in PixInsight,
and finished in Photoshop.
Astrometry Info:
nova.astrometry.net/user_images/1195912#annotated
RA, Dec center: 274.676478398, -13.8142171692 degrees
Orientation: 1.2612306337 deg E of N
Pixel scale: 5.90362564941 arcsec/pixel
Martin
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The Eastern Veil Nebula is a part of the much larger Veil Nebula, a supernova remnant of a star 20 times the size of the Sun. It exploded 8000yrs ago and this cloud of ionized gas has been expanding ever since.
This image acquired through Ha (red) and OIII (blue) filters over a total integration time of 5.6hrs.
30 Ha and 38 OIII images (each 5min exposure length) stacked and processed in Pixinsight and Lightroom
Leo Triplet.
...................
It is a small group of galaxies located in the constellation Leo, located 30-35 million light-years away from Earth. This group is one of the most popular targets for both astrophotography and visual observations, January-April being the best time to image these galaxies.
As a brief individual presentation, these 3 galaxies are as follows:
NGC 3628 (the one on the left), also known as the Hamburger Galaxy, due to its shape as we see it - is about 35 million light-years away and is surrounded by a cloud of stellar dust that hides most of the galaxy.
Messier 65 (top right in the attached image) - is the smallest of the 3 galaxies and also the closest to Earth ("only" 31 million light-years away).
Messier 66 (the one on the right) - is the brightest galaxy in the group and is 35 million light-years away. According to specialists, this galaxy is the largest in the group, with a diameter of about 95,000 light-years, almost as big as our galaxy.
Technical info :
Mount: Skywatcher EQ6R Pro.
Telescope: Skywatcher 150PDS
Camera: ASI 533MC Pro.
Total exposure: 9 hours ( 180 light frames x 3 min ).
Stacking with Deep Sky Stacker.
Edit in Pixinsight.
Location : my Bortle 6+ backyard.
North America nebula is an emission nebula in the constellation Cygnus 2590 light years from Earth. It's size across is 90 light years. Pelican nebula is on the right side of the image.
⏱️ 10h (147 x 4min ISO 800 frames)
Kaunas, Lithuania (Bortle 8 skies)
📅 October, 2021
Setup:
📷 Canon EOSR unmodified
🔭 Skywatcher Explorer 150PDS
️ Baader MPCC and IDAS LPS-D2 filter
⚙️ Skywatcher HEQ5 Pro
↖️ Guiding with ZWO ASI 120MM Mini + ZWO 30mm Mini Guide Scope + PHD2
💻 Stacked and edited with DeepSkyStacker and PixInsight
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聖誕樹星團+錐狀星雲
宇宙內隱藏著大量寶藏，各式各樣的深空天體變化萬千，有不少更看似「似曾相識」。俗稱「聖誕樹」的深空天體就有聖誕樹星團 + 錐狀星雲 (Christmas Tree Cluster + Cone Nebula)，大家看看又是否像聖誕樹一樣般吸引呢？在此順道祝大家聖誕節快樂！
Photo by Timmy Wong
地點：星明天文台
相機：SBIG STL-11000M
望遠鏡：Takahashi FSQ106N
赤道儀：NEQ6 (+EQMOD)
設定：Ha: 900s x11, R: 600s x4, G: 600s x4, B: 600s x4
香港拍攝難度：★★★★ (五星最難)
建議鏡頭焦距：200 ~ 500mm
適合拍攝月份：11 月 ~ 2 月 (香港)
Another Astro Adventure with Ozark Bill, while Bill had his focus set on the Rosette Nebula NGC 2237 and Star cluster NGC 2244.
My focus was the Horsehead Nebula IC 434 and its accompanying nebula NGC 2024, the Flame Nebula.
I imaged these targets on 2/17/2023 - Waning Crescent phase. This is the phase where the moon is less than 50% illuminated but has not yet reached 0% illumination (which would be a New Moon).
Imaging started at 715pm on 2/17/2023 and ended at 1209am 2/18/2023.
The image I am sharing is a stack of 65 images, taken in HaRGB
The Horsehead Nebula (IC434) is about 1400 light-years away from Earth, which means it takes 1400 years for light to travel from the nebula to our home planet. A light-year is a unit for measuring very long distances. One light-year is nearly six trillion miles, and it’s the most common unit of measure for distances of objects in outer space because most of them are extremely far away.
The nebula has a dark appearance because of dense dust and hydrogen gas that block other stars behind it. It is radiation from a hot star which causes hydrogen gas in a nebula to glow with a pinkish-red color, plus there are often other colors due to different elements. But mostly they're red.
Located near Alnitak, the leftmost star in Orion’s Belt, there are these two iconic nebulae which are always a favourite sight during the winter months of the Northern Hemisphere. The Horsehead nebula was officially discovered in 1888 by a Scottish astronomer named Williamina Flemming. She was at the Harvard College Observatory when she spotted the nebula, and she recorded its image on a photographic plate. The nebula was given the name Barnard 33 at that time, and it was described as a dark mass. It’s huge! Current estimates put it at 4 light-years tall by 3 light-years wide. In miles, it is around 24 trillion miles tall by 18 trillion miles wide.
Summary of facts about the Horsehead Nebula
*The Horsehead nebula is about 1400 light-years distant from Earth.
*It can be found just south of the belt in the constellation Orion.
*The Horsehead nebula is one of the most well-known astronomical objects because of its interesting shape.
*The iconic horse head image stands out because it is surrounded by the bright IC 434 nebula that is part of a larger nebula construct.
*The Horsehead nebula is about 4 light-years tall and 3 light-years across.
*In time, the nebula will be dispersed by ultraviolet light from stars in the vicinity.
*A 2001 poll of amateur astronomers revealed that it was their favorite celestial object.
WORC 51 + ASI533MC cooled to -15°/Gain 100.
A total of 70 lights for a total of 291 minutes or 4.83 hours
20 x 300-sec EXP / 5 x 600-sec EXP / 30 x 180-sec / 10 x 10-sec
Processed using: Pleiades Astrophoto PixInsight