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NGC 7023, the Iris Nebula. Just a quick stack and DDP stretch of the LRGB data.

 

Luminance - 13 x 600 seconds

Red (2x2 binned) - 5x600 seconds

Green (2x2 binned) - 5x600 seconds

Blue (2x2 binned) - 7x600 seconds

 

Astro-Physics 305RHA astrograph, QSI 583wsg camera, 900GTO mount. Real processing in PixInsight to follow.. Color balance is awful, and what you'd expect in 5 minutes at 3:00am :-)

Constellation: Carina

Distance: 9000 LY

NGC 3293 Size:

This nebula shines purely by reflected starlight, and is partially obscured by dust clouds.

It's easy to see with a telescope, but relatively difficult to photograph: this is the result of over 4 hours of exposure! The image is best viewed on a black background.

11 x 10-minutes at ISO 1000; 14 x 10 minutes at ISO 1600; f6.3; off-axis, manual guiding; registered & stacked using DeepSkyStacker software.

Canon EOS 40D, Celestron C8 telescope.

 

RA: 05h 46m 45.6s, Dec: +00° 02′ 52″

www.astrobin.com/gge3yw/#sky-plot

 

M78 is the brightest diffuse reflection nebula of a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071. This group belongs to the Orion B molecular cloud complex and is located about 1,350 light-years from Earth.

 

About 45 variable stars of the T Tauri type,[7] young stars still in the process of formation, are present within the nebula. Similarly, 17 Herbig-Haro objects are known in M78

 

Source: Wikipedia.

 

OTA: Dreamscope 16" f/3.7 astrograph (SkyPi, Pie Town, NM, US)

Camera: ZWO ASI 6200MM Pro

Pixel Size: 3.76 x 3.76 micron

Image Scale (1x1): x arcsec/pixel

FOV: 1.37° x 0.92°

Mount: Paramount ME

Guiding: Unknown

 

Imaging data: ATEO-1 at SkyPi, Pie Town, NM USA

Available from the Starbase website starbase.insightobservatory.com/inventory

 

Subs (9/11/21 - 12/11/21):

23 x 300 sec RED (bin x1)

19 x 300 sec GREEN (bin x1)

22 x 300 sec BLUE (bin x1)

19 x 300 sec LUMINANCE (bin x1)

13 x 600 sec Ha (bin x1) mapped to RED channel

 

Integration: 9 hrs 5 min

 

Alignment, integration & initial image processing (channel combination, background removal, RC-Astro toolkit, non-linear stretch): PixInsight

 

Post-processing & finishing: Adobe Photoshop, Corel PSP2019 & Adobe Lightroom

Reprocessed my few subs I took of the Witch Head Nebula. The big star is Rigel, the bottom right blue star in Orion.

 

4x450 seconds subs at ISO 1600, f2.8, 200mm

Canon 350D (modded)

Astrotrac

 

Processed in DSS and CS3

Image by Richard Ford

20 Second Exposure

ISO 3200

Stacked in Deep-Sky Stacker

Processed in Photo Plus X4

12-inch Dobsonian Reflector Telescope

Dobtorial Tracking Platform

Canon 1100DSLR Camera

Stack of 64 30-sec exposures, stacked with Deep Sky Stacker and processed in Photoshop CS5.

 

Nikon D90 camera

Sigma 150-500mm f/5-6.3 DG OS HSM APO Autofocus Lens

Orion TeleTrack GoTo Altazimuth Telescope Mount

64 X 30” exposures, f/6.3, ISO1600, 500mm

Dark, flat, dark-flat, and offset-bias frames applied

Narrowband HST-palette view to the reflection nebula NGC1931 and emission nebula IC417 in Auriga.

 

8x10min SII, Ha, OIII.

 

See also same data in natural colors.

Iris Nebula NGC7023

 

Exposure 15 hours.

After another night of collimation, the setup is getting closer to a workable state. It's surprising how awake you stay the whole night when temperatures are again in the freezing portion of the scale.

 

I'm setting up a Teleskop-Service version of Boren-Simon PowerNewt 8 f/2.8. Actual focal length is now 604mm, which makes it an f/3, but still a bit of an improvement from the C8+Crayford+reducer f/7.

The small pixels of the camera in use (Trius SX814) are perhaps a bit too small for the ASA Keller reducer drawing capabilities.

 

10x 60s with Baader 7nm Ha, no calibration frames used yet.

Edited image of Rho Ophiuchus turned into a repeating pattern.

 

Original caption: Rho Ophiuchus region containing IC 4605, IC 4604, IC 4603, Antares, NGC 6144, M4 Globular Star Cluster, SH2-9, NGC 6121, and emission and reflection nebula structure

Description:

From the heart of Desert Bloom Observatory, the night unveiled the ethereal dance of the Pleiades (M45)—a cluster of radiant sisters bound by gravity and myth. Draped in silken blue veils of cosmic dust, these stars shimmer across the constellation Taurus, about 444 light-years from Earth. Their reflection nebulae are illuminated by scattered starlight across interstellar dust—an elegant harmony between myth, matter, and light.

 

Astro Imaging Details:

Telescope: Celestron Nexstar Evo 9.25 (235mm f/10 Schmidt-Cassegrain)

Camera: ZWO ASI2600MC Pro

Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S303000

Guide Scope: ZWO 30F4 Miniscope

Guide Camera: ZWO ASI462MC Planetary Camera

Optics: Starizona HyperStar 4 HS4-C9.25 (White 10014)

Finder: Starizona Telrad Reflex Sight Finder

Focuser: ZWO Electronic Automatic Focuser EAF-5V

Controller: ZWO ASIAir Plus WiFi Camera Controller

Filter: Optolong L-Pro 2” Multiband Pass Filter

Accessories: Astrozap Dew Heater, Celestron Dew Shield

Additional: Samsung Cellular Phone, Memory Card

 

Exposure & Processing:

Exposure: 600 seconds × 186 frames

Stacked in DeepSkyStacker

Processed in PixInsight and Photoshop

All data were acquired and processed by me at Desert Bloom Observatory. I sincerely hope this image reflects the quiet beauty and timeless mystery of the Pleiades star cluster.

🌌 The Iris Nebula & LDN 1157 – A Cosmic Tapestry ✨🌿

 

follow - share - credit

www.instagram.com/ale_motta_astrofotografia

 

This image captures NGC 7023, the Iris Nebula, alongside the dark nebula LDN 1157, a complex region of interstellar dust and gas that shapes the celestial landscape.

 

💡 What makes it special?

🔹 NGC 7023 is a reflection nebula, glowing in soft blue as its dust scatters the light of the young, hot star HD 200775 (Mag. 7.4).

🔹 LDN 1157 is a dark nebula, a dense molecular cloud that absorbs background starlight, appearing as an intricate network of shadowy filaments.

🔹 LDN 1157 is an active star-forming region, hosting young stellar objects and protostars embedded deep within its dust.

 

📌 Constellation: Cepheus ✨

📏 Distance: ~1,300 light-years

📍 Coordinates: RA 21h 01m 36s, Dec +68° 10′ 10″

 

A stunning interplay of light and darkness, where new stars are born within the cosmic void. What do you see in this stellar nursery? 🌌🔭

 

Lights: 16x300" Red, 16x300" Green, 16x300" Blu

Telescope: Takahashi FSQ-106ED

Camera: QHY 600M

 

Lights: 27x300" Red, 27x300" Green, 27x300" Blu

Telescope: Takahashi FSQ-106ED

Camera: FLI PL16083

 

Combined & Processed: Pixinsight

 

#IrisNebula #NGC7023 #LDN1157 #DarkNebula #ReflectionNebula #Astrophotography #CosmicWonders #StarFormation

Edited image of Rho Ophiuchus turned into a repeating pattern.

 

Original caption: Rho Ophiuchus region containing IC 4605, IC 4604, IC 4603, Antares, NGC 6144, M4 Globular Star Cluster, SH2-9, NGC 6121, and emission and reflection nebula structure

Alcyone is the brightest star in the Pleiades star cluster (M45). The nebula is dust leftover from the formation of the stars. It appears blue for the same reason that the sky is blue. 10 minute total exposure at f/6.3 with a Celestron Edge HD 9.25" and ATIK 314L+ color CCD camera. Guided with PHD. Processing done with Deep Sky Stacker, FITS Liberator and Photoshop Elements.

Edited image of Rho Ophiuchus turned into a kaleidoscopic image.

 

Original caption: Rho Ophiuchus region containing IC 4605, IC 4604, IC 4603, Antares, NGC 6144, M4 Globular Star Cluster, SH2-9, NGC 6121, and emission and reflection nebula structure

The open star cluster Pleiades (M45) in the constellation of Taurus (TAU), also known as the Seven Sisters (Sterope, Merope, Electra, Maia, Taygete, Celaeno and Alcyone).

It is a stacked image out of 160 single photo's with 1 second

Edited image of Rho Ophiuchus turned into a repeating pattern.

 

Original caption: Rho Ophiuchus region containing IC 4605, IC 4604, IC 4603, Antares, NGC 6144, M4 Globular Star Cluster, SH2-9, NGC 6121, and emission and reflection nebula structure

Camera: Nikon D50

Exposure: 30m (10 frames) ISO 800 RGB

Filter: Orion Skyglow Imaging Filter

Focus Method: Prime focus

Telescope Aperature/Focal Length: 203×812mm

Mount: LXD75

Telescope: Meade 8" Schmidt-Newtonian

Guided: Yes - PHD Guiding

Stacked: DeepSkyStacker

Adjustments: cropped/leveled in Photoshop

Location: Flintstone, GA

Saturn, at top right, off Beta Scorpii in the head of Scorpius, March 2015. Antares is the yellow star at lower left. The field is rich in colourful blue & yellow reflection and red & magentia emission nebulas. I shot this the morning of March 28, 2015 from Silver City, New Mexico, with the 135mm telephoto at f/2.2 for a stack of 4 x 1.5-minute exposures with the Canon 5D MkII at ISO 800, plus two additional exposures of the same length taken through the Kenko Softon A filter and layered in Photoshop to add the star glows.

Camera: Meade DSI Color II

Exposure: 16m (4 x 120s) RGB + (4 x 120s)L

Filter: Orion Skyglow Imaging Filter

Focus Method: Prime focus

Telescope Aperature/Focal Length: 203×812mm

Mount: LXD75

Telescope: Meade 8" Schmidt-Newtonian

Guided: PHD Guiding

Stacked: DeepSkyStacker

Adjustments: cropped/leveled in Photoshop

Location: Flintstone, GA

Imaged in broadband RGB from Chuchupate Campground on 8/10/24, using APM 140 doublet at f/5.6, asi2600mm, and Astronomik MaxFR color filters. 7 hours total integration.

Trifid Nebula - Messier 20

 

This nebula is a combination of the three main types of nebulae: Emission, Dark, and Reflection. The Emission nebula is the reddish part of the image, with the black lines across it being the dark nebula. The reflection nebula is the blue area.

 

Location: Tg Sedili, Malaysia

Telescope: Celestron 8" Nexstar SCT

Mount: CG-5 (German Equatorial)

Camera: Nikon D5000

 

Exposure: 7 min (14*30s)

Iso-speed: ISO-3200

f-stop: f/6.3 (with focal reducer)

Sketch of M20/NGC 6514 - emission/reflection nebula in Sagittarius - including dark nebula Barnard 85 (B85), and double star HN 40/HN 6

Rho Ophiuchus region containing IC 4605, IC 4604, IC 4603, Antares, NGC 6144, M4 Globular Star Cluster, SH2-9, NGC 6121, and emission and reflection nebula structure

Cradle of Cosmic Beginnings — The Embryo Nebula (NGC 1333)

 

In the quiet vastness of the Perseus Molecular Cloud, NGC 1333 — the Embryo Nebula — stirs with the breath of creation.

Glowing softly in hues of blue and amber, this reflection nebula shelters newborn stars wrapped in cocoons of cosmic dust. Their faint light dances through veils of interstellar mist, whispering stories of stellar infancy. Captured over five patient nights at Desert Bloom Observatory, this image gathers 88 frames of 600-second exposures — a tapestry woven from light and time. Every pixel speaks of formation, turbulence, and renewal — a glimpse into the universe’s eternal cycle of birth and becoming.

 

NGC 1333, located roughly 960 light-years away in the constellation Perseus, is a dense star-forming region within the Perseus Molecular Cloud Complex. It is dominated by reflection nebulosity — dust illuminated by young, hot stars — and marked by dark filaments and Herbig–Haro objects, where stellar jets collide with surrounding gas. The region teems with protostars, brown dwarfs, and protoplanetary disks, representing one of the most dynamic laboratories for studying early stellar evolution. The nebula’s distinctive structure resembles an embryo in a cosmic womb — a symbol of the universe’s relentless creativity.

 

Imaging Details:

Location: Desert Bloom Observatory, St. David, Arizona, USA

Telescope: Celestron Nexstar Evo 9.25" (235mm f/10 Schmidt-Cassegrain)

Mount: Sky-Watcher EQ-6R Pro Computerized Equatorial Mount S30300

Camera: ZWO ASI2600MC Pro

Guide Scope: ZWO 30F4 MiniScope

Guide Camera: ZWO ASI462MC Planetary Camera

Accessories: Starizona HyperStar 4 HS4-C9.25 White 10014, Starizona Telrad Reflex Sight, ZWO Electronic Automatic Focuser (EAF-5V), ZWO ASIAir Plus WiFi Controller, Optolong L-Pro 2” Multiband Pass Filter

Exposure: 88 frames × 600 sec (5 nights)

Processing: DeepSkyStacker, PixInsight, Adobe Photoshop

Captured with: Samsung Smartphone (control and monitoring)

Just weeks after NASA astronauts repaired the Hubble Space Telescope in December 1999, the Hubble Heritage Project snapped this picture of NGC 1999, a nebula in the constellation Orion. The Heritage astronomers, in collaboration with scientists in Texas and Ireland, used Hubble's Wide Field and Planetary Camera 2 (WFPC2) to obtain the color image. NGC 1999 is an example of a reflection nebula. Like fog around a street lamp, a reflection nebula shines only because the light from an imbedded source illuminates its dust; the nebula does not emit any visible light of its own. NGC 1999 lies close to the famous Orion Nebula, about 1,500 light-years from Earth, in a region of our Milky Way galaxy where new stars are being formed actively. NGC 1999 was discovered some two centuries ago by Sir William Herschel and his sister Caroline, and was cataloged later in the 19th century as object 1999 in the New General Catalogue. This data was collected in January 2000 by the Hubble Heritage Team with the collaboration of star-formation experts C. Robert O'Dell (Rice University), Thomas P. Ray (Dublin Institute for Advanced Study), and David Corcoran (University of Limerick).

My updated image of NGC2023; the emission/reflection nebula between the Flame Nebula and Horsehead Nebula in the constellation of Orion. The big star you can see in the top left corner of the picture is Alnitak - the first star in Orion's Belt. At a distance of just under 1700 light years, this is the largest nebula of its type ever discovered. Despite this, it doesn't have a name.

The Iris nebula (NGC 7023) is a reflection nebula in the constellation Cepheus. Reflection nebula means that there are common clouds of interstellar dust that reflect the light of a nearby star. In this case, it's a very young star SAO 19158, which is only about 5000 years old. Iris nebula was discovered by William Herschel in 1794. It's approximately 1400 light years away and it has 3 light years in diameter.

 

🔭Vixen ED81S 81/625mm, EQ-5 mount

Canon EOS 760D

EXIF: 105x120s, ISO 3200 (3 hours 30 minutes in total)

16/09/2022, Turnov, Czech Republic (Bortle 5)

M78, or NGC 2068, a reflection nebula in Orion. Esprit 120ED / ASI1600MC, 15 x 300s, PixInsight

This is the "Gulf of Mexico" area of a much larger nebula.

Image by Andre Potgieter

Showing 121 x6min (12.1 Hours) Deleted 54 frames (5.4 Hours) due to LP

ISO 400 , SW200p , Canon 1100D ,EQ6

 

Corona Australis/C68 , NGC 6726 ,NGC 6723

The stars inside are newborn babies, only a few million years old.

Episode: 2 Deep Sky

Subject: M78 in Orion

Camera: Canon 350D

A less popular region of Orion for imagers. This time just above the belt. Taken on the Breckland Astronomical Society 20 inch telescope, with focal reducer working at f/3. Tracking with no extra guiding.

Canon Rebel XT

William Optics ZS70ED

Sh2-279 (alternatively designated S279 or Sharpless 279) is an HII region and bright nebulae that includes a reflection nebula located in the constellation Orion. It is the northernmost part of the asterism known as Orion's Sword, lying 0.6° north of the Orion Nebula. The reflection nebula embedded in Sh2-279 is popularly known as the Running Man Nebula. Sh2-279 comprises three NGC nebulae, NGC 1973, NGC 1975, and NGC 1977 that are divided by darker nebulous regions. It also includes the open cluster NGC 1981. The brightest nebulosity, later listed as NGC 1977, was discovered by William Herschel in 1786. He catalogued it as "H V 30" and described "!! 42 Orionis and neb[ula]". The two smaller reflection nebulae were first noted by German astronomer Heinrich Louis d'Arrest, NGC 1973 in 1862 and NGC 1975 in 1864.[5] All three were included in the New General Catalogue in 1888.[6] The designation NGC 1977 is used in various sources for the reflection area around 42 Orionis (the south-east portion of the reflection nebula), for the entire reflection nebula (including NGC 1973 and NGC 1975), or for the whole nebula complex.

Blue Horsehead Nebula, also known as the IC 4592, is a reflection nebula located in the constellation Scorpius. The nebula is illuminated by the star Nu Scorpii, which is part of a multiple star system, and the radiation from this star causes the interstellar dust in the nebula to shine with a bluish hue, characteristic of reflection nebulas. IC 4592 is situated approximately 400 light-years from Earth.

 

This nebula is notable for its distinctive shape, which resembles the head of a horse. Unlike the famous Horsehead Nebula in the constellation Orion, which is an emission nebula, IC 4592 shines by reflecting the light of nearby stars. The nebula extends over several tens of light-years and is an interesting region for astronomical studies due to the interaction of starlight with interstellar dust and gas.

 

📍Anápolis - Goiás, Brazil. 06-05-24, 06-06-24 and 06-07-24

📷QHY294C Cooled

🎥Rokinon 135mm F2.0 ED UMC

🔭Bresser EXOS-2 with Onstep Brasil

🌑@novaastrophotos

📋 Exif: 300 minutes of total exposure.

Lights: 75x240" Gain 1600 f/3.2

Darks 75x240"

An attempt at an hour of exposure of reflection nebula #messier78 through intermittently cloudy skies. This fuzzy patch is just to the upper left of Orion's belt. This one is proving tricky. I think I need about 3 hours to really bring our detail and color for this one. #astrophotography #deepskyphotography #messierobjects #reflectionnebula

HaRGB ...3rd iteration ;-)

NGC 1973 (Running Man Nebula) is a reflection nebula associated with Orion’s molecular cloud. The nebula is located just .5 degree north of the Great Orion Nebula and 1,500 light years away from Earth. The blue color derives from the interstellar dust that reflects the light from the surrounding young stars. The image consists of 75 x 5min exposures taken with a Canon 60Da and TPO 8” RC telescope mounted on a Celestron CGE Pro mount. Images were stacked with Nebulosity 4 and processed with PixInsight 1.8

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