View allAll Photos Tagged BubbleNebula
A widefield view of Cassiopeia and Cepheus containing a variety of objects including the Bubble Nebula – lower center aka NGC7635, Shapless-162 or Caldwell 11, which is an HII emission region that contains a bubble structure created by stellar wind from a massive hot star. It is estimated to be anywhere from 7100 to 11,000 lightyears from earth. Another prominent object is the Lobster Claw Nebula or Sharpless-157 on the right side of the frame at about 11,050 lightyears distant. On the left side of the frame is the huge diffuse nebula Sharpless 161 which is studded with the bright nebula NGC7538 sometimes called the Northern Lagoon Nebula or Brain Nebula, (both are about 9100 lightyears distant). Aside from these glowing gas regions there are two prominent star clusters: NGC7510 aka the Dormouse or Arrowhead Cluster and The Cassiopeia Salt and Pepper Cluster (M52, NGC7654).
The field contains objects from Lynds' Catalogue of Bright Nebulae
- LBN 547
- LBN 543
- LBN 544
- LBN 548
- LBN 549
- LBN 540
- LBN 533
- LBN 536
- LBN 537
Details:
- Acquisition Date: 09/02/2022 to 09/03/2022
- Location: Western Massachusetts USA
- Imaging Camera: QHY600PH-M -10°C - Mode 1(High Gain) Offset:15 Gain:56
- Telescope: Takahashi FSQ106 EDXIII @ f/5 (530mm focal length -106mm aperture)
- Mount: Astro-Physics AP1100 w/GTO4
- Guide scope: Celestron Off Axis Guider
- Guide Camera: ASI174m mini
- Software: Adobe Photoshop CS5, Sequence Generator Pro, PixInsight 1.8 Ripley, Aries Astro Pixel Processor
Filters used:
- Chroma Hydrogen Alpha (Ha) 3nm 50mm
- Chroma Oxygen III (OIII) 3nm 50mm
- Astrodon Sulfur II (SII) 3nm 50mm
Exposure Times:
-Chroma Hydrogen Alpha: 15 x 600 sec (150 min)
-Chroma Oxygen III: 15 x 600 sec (150 min)
-Astrodon Sulfur II: 15 x 600 sec (150 min)
Total Exposure: 450min. (7.5 hrs.)
Sky Quality:
-Magnitude: 19.71
-Bortle Class 5
-1.41 mcd/m^2 Brightness
-1234.6 ucd/m^2 Artificial Brightness
The Bubble Nebula is an emission Nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "Bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
The Bubble Nebula was discovered in 1787 by William Herschel.
Equipment:
Celestron 9.25” 2350mm Edge-HD Telescope
Celestron .7 EdgeHD Reducer Lens
Sky-Watcher EQ6-R Pro Computerized GoTo Telescope Mount
Orion 50mm Helical Guide Scope & StarShoot AutoGuider
Celestron 9x50 Finder Scope
ZWO ASI294MC Pro Color Camera
ZWO 1.25” Duo-Band Filter
PHD2 Guiding Software
SharpCap Pro
Thank you for your comments,
Gemma
M52 open star cluster and Bubble Nebula (NGC 7635) in Cassiopeia
Telescope: EON 80ED,
Camera: Canon EOS 20Da
Mount: Vixen NexSXW,
Date: 21 October 2017
Guiding: 80/400 Skywatcher refractor and SkyWatcher SynGuider.
- Camera Settings: ISO 1600, 6 min subs, Daylight WB.
South is up
DESCRIPTION + OBJECTS: Very interesting and rich region of nebulosity in Cassiopea constellation. From left to right you can see Sh161, Sh158 (NGC7538), Sh169, Sh152, NGC7635 Bubble nebula, M52 (NGC7654), NGC 7510, Sh157 Lobster Claw nebula in the center. FOV 4° x 2,6°.
GEAR: Nikon Z7 Kolari Full Spectrum + Nikkor 500/5,6 PF, Astronomic UV/IR/L2 Clip in filter, Rollei Astroklar light pollution filter, Dew heater strip, Sensor pixel scale xx 1,79 arcsec/px, tracking mount iOptron CEM60EC - 3 star alignment, no auto guiding.
ACQUISITION: September 3rd, 2021, Struz, CZ, Subexposure 180s, f 5,6, ISO 2000, Interval 15 s, RAW-L, Light 41x, Dark 30x, Bias 20x, Flat 20x, DarkFlats 10x. Total exposure time 123 min. Night, no wind, 10°C, Backyard, light pollution - Bortle 5.
STACKING AND POST PROCESSING: AstroPixelProcessor (stacking, background neutralization, light pollution removal, calibrate background), Adobe Photoshop CC 2021 (black and white point settings, stretching, stars dim, enhance DSO, contrast setting). No cropped, image size 3840 x 2560 px.
Object: NGC7635 (Bubble Nebula) (2024) (SHO Palette)
NGC 7635, also called the Bubble Nebula, is a H II region, emission nebula in the constellation Cassiopeia. The bubble structure is created by stellar winds moving at over 4 million miles per hour from a massive, hot, young central star called SAO 20575 which is 45x the size of our sun. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William Herschel.
- Radius of Bubble – 3 to 5 lightyears
- Other designations - Sharpless 162 (SH2-162), or Caldwell 11
- Distance: reported by Hubble Site - 7100 light years
Details:
- Acquisition Date: 10/12/2024 to 10/24/2024
- Location: Western Massachusetts, USA
- Imaging Camera: QHY600PH-M -10°C - Mode 1(High Gain) Offset:15 Gain:56
- Telescope: Celestron EdgeHD 11 Celestron 11" Edge HD @f/7
- Focal reducer: Celestron .7x Focal Reducer, for 11 HD
- Mount: Astro-Physics AP1100 w/GTO4
- Guide scope: Celestron Off Axis Guider
- Guide Camera: ASI174m mini
- Software: Adobe Photoshop CS5, Sequence Generator Pro, PixInsight 1.8 Ripley, Aries Astro Pixel Processor
Filters:
- Chroma Ha 3nm 50mm
- Chroma OIII 3nm 50mm
- Astrodon SII 3nm 50mm
Exposure Times:
- Hydrogen Alpha (Ha): 26 x 10min. (260min) bin 1x1
- Oxygen III (OIII):26 x 10min. (260min) bin 1x1
- Sulfur II (SII):26 x 10min. (260min) bin 1x1
Total Exposure:780min. (13.0hr)
Sky Quality:
-Magnitude: 19.71
-Bortle Class 5
-1.41 mcd/m^2 Brightness
-1234.6 ucd/m^2 Artificial Brightness
NGC 7635 a.k.a. Bubble Nebula
……………………………................
Space is full of things / situations / events that intrigue us, NGC7635 being one of those. In short and for everyone to understand, a massive star is caught in a "bubble". This star is almost 50 times larger than the Sun and the emitted radiation is about 1 million times stronger than it, producing a stellar wind that exceeds 5 million km per hour, wind that pushes dust and gas outward creating thus a shell or a bubble, a situation that obviously led to the popular name of this nebula.
As general information, the Bubble Nebula is an emission nebula with a diameter of about 7 light-years, located in the constellation Cassiopeia, at a distance of over 7000 light-years from Earth and it was discovered in 1787 by the British astronomer, William Herschel.
Specialists believe that in a short time ( meaning in the next 10-20 million years), the "guilty" star will consume its energy resources, and will explode, forming a supernova.
Equipment and settings:
Mount: SW EQ6R
Telescope: SW 150/750 PDS
Camera: ASI 533MM Pro
Filters: SHO Astrodon 5nm
Integration: 15h45’
Edit in Pixinsight.
Location: my Bortle 6+ backyard
Well its only taken a year and about 100 attempts but finally processed a version of this I am happy with.
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, young central star (Wikipedia)
More Astrophotography at : telescopius.com/profile/k-bahr
and on Instagram: www.instagram.com/astrophotography_in_the_north/
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. (Celestron EdgeHD800, ZWO ASI2600MM, ASIAIR, EAF, EFW, Skywatcher HEQ5, Antlia SHO 3nm, Pixinsight, Photoshop).
2 hours 10 mins, 10 min subs at 1x1 binned, 7nm Ha
Scope - Takahashi Sky 90 with reducer
CCD - Atik 460exm
Michael L Hyde (c) 2016
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
More info: www.galactic-hunter.com/post/ngc-7635
A wide view on the Bubble Nebula 🛁 and the Lobster Claw Nebula
This was taken from our backyard in narrowband (SHO) and totals about 30 hours (I think, I still have to do the math 😅).
I kinda hate myself for not framing it a tiny bit higher but oh well.
Will probably revisit the Bubble alone with a larger scope in the future. The telescope used here is the SVX130 which, with the reducer, has a FL of 655mm, but this much wider field was achieved thanks to the full-frame camera (QHY600M).
From Wikipedia: “NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.”
This is a 2 hour and 35 minute combined exposure and processed in PixInsight in the Hubble palette.
Observation data:J2000 epoch
Right ascension: 23h 20m 48.3s
Declination: +61° 12′ 06″
Distance: 7100 to 11000 ly
Apparent magnitude (V): ~10
Apparent dimensions (V): 15′ × 8′
Constellation: Cassiopeia
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at 0C, Sky-Watcher EQ6R-Pro mount, Optolong L-eXtreme filter (2”), 31 x 300 second exposures, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DSS. Image Date: August 31, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
This is probably the first of many objects I will be revisiting to add some new data to existing data.
I’ve replaced the old Oiii data and added 25 Ha 6min subs to the existing 24 5min subs I took back in 2017 giving me 4.5h of Ha data. Was it worth it? At first no! but after the 4th attempt I realised it was me over processing the image, again! will I never learn, probably not. I'm happy with it now.
Note:
The Oiii data needed replacing as the original was not taken with a CCD filter.
NGC7635 the Bubble Nebula in the constellation Cassiopeia. It is located at a distance of between 7,100 and 11,000 light years with a visual Magnitude of 10. The "bubble" is created by the stellar wind from a massive hot 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star.
EQUIPMENT:-
Telescope Meade 6000 115mm and AZ-EQ6 GT
ZWO ASI1600mm-Cool cmos camera
Orion Mini Auto Guide
Astronomik 12nm Ha Filter
Astronomik 6nm Oiii Filter
Chip Temp Cooled to -20 degC
IMAGING DETAILS:-
NGC7635 Bubble Nebula (Cassiopeia)
Ha Gain 139 (Unit Gain)
Oiii Gain 200
24 Ha subs@300sec (2h) Data from 2017
25 Ha subs@360sec (2.5h)
24 Oiii subs@300sec (2h)
Total imaging Time 6.5h
Dithering
20 Darks
20 Flats
PROCESSING/GUIDING SOFTWARE:-
APT "Astro Photograph Tools"
DSS
PS CS2
NGC7635, the Bubble Nebula, is located in the constellation of Cassiopeia. The bubble is created by stellar winds from a young and massive star central star. This star also causes the surrounding hydrogen gas to glow red.
Star Adventurer 2I
ZWO ASI294MC Pro camera
Baader Neodymium moon and sky glow filter
Sigma 150-600 lens at 600mm
240 2-minute exposures stacked in DSS
SiriL - color calibration
Photoshop / Starnet v2 for the balance of processing
Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 10 light-year diameter bubble offers evidence of violent processes at work.
Bubble's center is a hot, O star, several hundred thousand times more luminous and around 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula and associated cloud complex lie a mere 11,000 light-years away toward the boastful constellation Cassiopeia. This tantalizing view of the cosmic bubble is composed from narrowband image data, recording emission from the region's ionized hydrogen and oxygen atoms.
Orion Optics 14 Inch ODK
Mesu E200 Mrk 2
SX H35 CCD
3nm Ha Chroma - 15 x 600s
3nm S2 Chroma - 10 x 600s
3nm O3 Chroma - 7 x 600s
Object: NGC7635 (Bubble Nebula) (2019) (HST Palette)
NGC 7635, also called the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. The bubble is created by the stellar wind from a massive, hot, young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by Friedrich Wilhelm Herschel. Distance from Earth ~11000 light years. This widefield also includes M52 aka NGC 7654, an open cluster of stars in the northern constellation of Cassiopeia, NGC7538 the Northern Lagoon Nebula aka Brain Nebula – Dreyer’s Object and part of the Lobster Claw Nebula (SH2-157).
This image was done using the HST or Hubble Space Telescope Palette which is accomplished by combining sub frames using three narrowband filters that capture light produced by glowing hydrogen (Ha), oxygen (OIII) and sulfur (SII) present in the nebula. Green is assigned to hydrogen, blue to oxygen and red to the sulfur.
Acquisition Date: 9/28/2019 – 09/30/2019
Location: Chester Basin, Nova Scotia
Camera: FLI ML16200 @ -20°C
Telescope: Astro-TECH AT130 with APM Riccardi APO Flattener 1.0x
Mount: Astro-Physics AP1100
Guide scope: Celestron Off Axis Guider
Guide Camera: ASI174 mini
Filters:
-Chroma 3 nm Hydrogen Alpha (Ha): 10 x 30min. (300min) bin 1x1
-Chroma3nm Oxygen III (OIII):10 x 30min. (300min) bin 1x1
-Astrodon 3nm Sulfur II (SII):8 x 30min. (240min) bin 1x1
Total Exposure:840min. (14hr)
Limiting Magnitude: 6.4
This is 40 hours and 50 minutes integration split between Phoenix Bortle 9 and Borrego Springs which is probably a Bortle 4, during the Nightfall Star Party there in October, 2022. In the processing I did a SHO blend formula that I got from Ron Brecher.R= (O^~O)*S + ~(O^~O)*H
G= ((O*H)^~(O*H))*H + ~((O*H)^~(O*H))*O
B= O
I did shoot some RGB just for the stars and added them back to the SHO image using Bill Blanchand's script. I wanted to reduce the stars a bit, but I didn't want to diminish the M52 cluster, so I made a mask using the GAME script to protect the cluster, while reducing all the other stars, using Bill's star reduction script. Final touches in Lightroom.
The Bubble Nebula is 7 light-years across and resides 7,100 light-years from Earth in the constellation Cassiopeia. The bubble is surrounded by Sh2-162, a billowy, textured cloud of glowing hydrogen gas. The star SAO 20575 is the creator of the Bubble Nebula and is estimated to weigh 45 solar masses. Its peculiar spectral classification of O6.5 indicates its surface temperature is a whopping 67,000 degrees Fahrenheit (37,200 degrees Celsius). Astronomers also estimate this star is losing mass at a rate of 1 solar mass every million years. The Bubble Nebula itself marks the edge of a shock wave interacting with the hydrogen atoms in the interstellar medium.
The open cluster M52 in the lower right is located 5,000 light years away.
I forgot I Hadn’t gone public with this one. This is the same as my previously uploaded image but with stars removed.
NGC7635 the Bubble Nebula in the constellation Cassiopeia. It is located at a distance of between 7,100 and 11,000 light years with a visual Magnitude of 10. The "bubble" is created by the stellar wind from a massive hot 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star.
EQUIPMENT:-
Telescope Meade 6000 115mm and AZ-EQ6 GT
ZWO ASI1600mm-Cool cmos camera
Orion Mini Auto Guide
Astronomik 12nm Ha Filter
Astronomik 6nm Oiii Filter
Chip Temp Cooled to -20 degC
IMAGING DETAILS:-
NGC7635 Bubble Nebula (Cassiopeia)
Ha Gain 139 (Unit Gain)
Oiii Gain 200
24 Ha subs@300sec (2h) Data from 2017
25 Ha subs@360sec (2.5h)
24 Oiii subs@300sec (2h)
Total imaging Time 6.5h
Dithering
20 Darks
20 Flats
PROCESSING/GUIDING SOFTWARE:-
APT "Astro Photograph Tools"
DSS
PS CS2
L’immagine mostra una zona di cielo nella costellazione di Cassiopea, centrata sull’ammasso stellare aperto Messier 52 (in basso a sinistra) e la nebulosa “Bolla” NGC 7635 (in alto a destra), chiamata così per via della sua forma.
I due oggetti sono visibili molto vicini in cielo, ma la vicinanza è solo prospettica, visto che M52 dista da noi circa 4500 anni luce mentre la nebulosa Bolla è un po’ più lontana, circa 11000 anni luce.
L’immagine è una composizione (R+Ha)GB, ovvero una tricromia RGB dove il canale rosso è stato rinforzato dal contributo del segnale Ha.
L’esposizione complessiva è stata di circa 8h suddivise in due nottate (Val d’Aosta a 1900m di quota e la mia terrazza di casa in piena Pianura Padana)
Dati tecnici
Rifrattore apocromatico Tecnosky 130/900 con spianatore TS 2.5”
CCD Moravian G3-16200 + filtri Baader RGB – Ha 7nm
RGB: 5x600” per ciascun canale colore, bin 1 @-20C
Ha: 10x900” + 10x1200”, bin 1@-20C
Montature GM1000HPS e EQ8
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This image shows a well known area in Cassiopeia constellation, centered around the open cluster Messier 52 (bottom left side) and Bubbe Nebula NGC 7635 (upper right side),so called for its shape.
We see the two objects very near in the sky, but the proximity is only perspective, as M52 is 4500 light years far away, while instead the Bubble Nebula is 11000 light years far away.
The image is a (R+Ha)GB combination, that is an RGB image in which I have “reinforced” the red channel with an Ha contribution in order to let the nebulosity all around the Bubble be more visible.
Images taken from Val d'Aosta region (Italy) at 1900m above sea level and from my backyard near Milan city (only Ha images due to lot of light pollution).
Technical data
Apocromatic refractor Tecnosky 130/900 LT with flattener TS 2.5”
CCD Moravian G3-16200 + Baader RGB – Ha 7nm filters
RGB: 5x600” for each color canal, bin 1 @-20C
Ha: 10x900” + 10x1200”, bin 1@-20C
Mounts GM1000HPS and EQ8
I present a starless image, which is heavily adjusted, but I think brings out the beauty and details of this amazing object. And, taken from downtown Phoenix, Arizona!
NGC 7635, better known as the Bubble Nebula, is located about 7,100 light-years away in the Cassiopeia constellation. Its star burns a million times brighter than our sun and produces powerful gaseous outflows called stellar winds that howl at more than four million miles per hour. Over time, the winds have pushed nearby gas and dust outward, forming a layer around the star that’s denser in some areas than others. Based on the rate the star is expending energy, scientists estimate in 10 to 20 million years it will explode as a supernova. And the bubble will succumb to a common fate: It’ll pop.
Embedded in a complex of interstellar dust and gas blown by the winds it is a mere 10 light-years wide..
Ha 79 x 10min, O2 73 x 10min, S369 x 10min
Total Integration 36 hr 50min
Esprit 120mm 840 focal length f 7.0
Camera: QHY268M
Gain: 56
Filters: Baader SHO filters
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. (Explore Scientific ED127, ZWO ASI2600MM, ASIAIR, EAF, EFW, AM5, Antlia SHO 3nm, Pixinsight, Photoshop).
The first light with my new mount and telescope.
165 minutes of total exposure, 33x300sec subframes, calibrated with darks and bias frames.
Camera: QSI 583wsg
Mount: Sky-Watcher NEQ6 pro
Telescope: TS 8" f/5 Newtonian
comma corrector: Baader MPCC mark III
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
The Bubble Nebula is a favourite amongst many astrophotographers, and I'm no exception. This wonderful object can be found in the constellation Cassiopeia. The apparent bubble that gives this nebula its colliquial name is caused by the stellar wind of the bright, hot central star clearing the space around itself. It lies inside a giant molecular cloud, causing it to glow. But the expanding bubble of "clear space" around the star is what gives the appearance of a large soap bubble in space.
I've shot this target before, but never in the current palette, which combines a session of RGB data along with a session of Ha.
-=Tech Data=-
-Image Details-
RGB - 4H 20M of 3 minute exposures
Hα - 125 mins of 5 min exposures
134M of total integration time
-Equipment-
Imaging Scope: Sky-Watcher Esprit 100
Mount: Celestron CGX
Imaging Camera: ZWO ASI 1600MC-Pro
Guide Camera: ZWO ASI120 Mini
Guide Scope: Starfield 60mm guide scope
Dew Control: Kendrick
Power: Pegasus Astro Pocket Power Box
-Software-
Acquisition / Rig Control: Sequence Generator Pro
Stacking: Astro Pixel Processor
Processing: PixInsight
Post Processing: Photoshop CC
-Location-
Shot at the Lennox and Addington County Dark Sky Viewing Area and Camden Lake Provincial Wildlife Area near Moscow in Lennox and Addington County
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
taken from downtown Phoenix,Arizona, bortle 9 skies! this is what narrowband filters can do.
NGC 7635, better known as the Bubble Nebula, is located about 7,100 light-years away in the Cassiopeia constellation. Its star burns a million times brighter than our sun and produces powerful gaseous outflows called stellar winds that howl at more than four million miles per hour. Over time, the winds have pushed nearby gas and dust outward, forming a layer around the star that’s denser in some areas than others. Based on the rate the star is expending energy, scientists estimate in 10 to 20 million years it will explode as a supernova. And the bubble will succumb to a common fate: It’ll pop.
Embedded in a complex of interstellar dust and gas blown by the winds it is a mere 10 light-years wide..
Ha 79 x 10min, O2 73 x 10min, S369 x 10min
Total Integration 36 hr 50min
Esprit 120mm 840 focal length f 7.0
Camera: QHY268M
Gain: 56
Filters: Baader SHO filters
This is a reprocessed version of the narrow band image of the Bubble Nebula, incorporating the star colours from the RGB image. I have been refining my PixInsight techniques using Warren Keller's book "Inside PixInsight" and some of the lessons learned have been used to develop this image.
So this is an H-alpha, SII, OIII, RGB image. There are five hours of H-alpha data, six hours of OIII data, and nine hours of SII data all in 20-minute subs; there is also 30 minutes each of RGB data in five-minute subs. These data were gathered in October and November 2016.
Telescope: 8" Ritchey-Chretien
Camera: QSI 583 with Astrodon filters
This beautiful Bubble Nebula (NGC 7635) is emission nebula in Cassiopeia constellation. Its formed by a powerful solar wind of a Wolf-Rayet star. It is a young star that emits strong ultraviolet rays that energise the surrounding molecular gas clouds to form a shape like a bubble. The diameter of the bubble is around 3-5 light years @ distance of about 7100 light years. Gear setup: Celestron Edge HD 8 f/7, Celestron F/R, Ioptron GEM45, Skywatcher EvoGuide 50, ZWO ASI290 MM Guide camera, ZWO EFW 5 x 1.25 Baader SHO narrowband filters, ZWO ASI1600 MM pro cooled @ 0. Lights Ha 14 x 300, O iii 23 x 300, Flats 20 each filter, Darks 20, Bias 50. Total integration 3 hrs & 5 min. Captured by APT, Sharpcap pro, PHD 2. Stacked in PI, processed in PS as HOO with little crop & Topaz Denoise AI. This is my first attempt to image by my new gear setup. The balancing of the scope of Celestron edge HD 8 on Ioptron GEM 45 was difficult. I bought an extra 2 counterweights of 2.5 kg and put it near the RA center to get a perfect balance in RA. While the balance on DEC was made by a Celestron top rail attached to the scope. The Guide graph in PHD 2 was 0.27-0.37 RMS. For full details: www.astrobin.com/full/wczf7i/0/
The night sky is full of strange things:
This is the Bubble Nebula.
The bubble is created by the stellar wind from a massive hot young central star. Energetic radiation from the star ionizes the shell, causing it to glow in the wavelength of H ll.
About six light-years in diameter, the nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by William and is located at a distance of 7100 light years in the the constellation Cassiopeia.
Also visible in the same field of view is the open cluster M52. Due to interstellar absorption of light, the distance to M52 is uncertain, with estimates ranging between 3,000 and 7,000 light years.
On the right edge of the image is NGC7538, another H ll nebula, which is home to the biggest yet discovered protostar (a collapsing ball of rotating gas that’s on the way to becoming a star) which is about 300 times the size of the Solar System. The distance to NGC7538 is estimated at around 9100 light years.
Astro modified Canon EOS 6D
William Optics Megrez 88 - 500mm f/5.6 piggybacked on a Celestron NexStar 8 GPS
66 x 90s @ ISO1600 stacked with fitswork
Thanks for all your comments and faves. They are highly appreciated!
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is an H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
The Bubble Nebula really is a bubble within an expanding molecular cloud, carved out by the stellar wind of an extremely hot and energetic star. It lies about 11000 light years distant in the constellation of Cassiopeia, and is nearby the beautiful open cluster M52.
This image was taken with a Stellarvue SVS130 telescope and an SBIG STL-4020M CCD camera. Hydrogen-alpha was used as the red channel, while the blue and green channels are Oxygen-III. The image was processed in MaximDL and Photoshop, and was upsampled 2x.
The Bubble Nebula, also known as NGC 7635, is an emission nebula located 8 000 light-years away. This stunning new image was observed by the NASA/ESA Hubble Space Telescope to celebrate its 26th year in space.
Read more about this fascinating image here.
Credit: NASA/ESA/Hubble Heritage Team
Here is a wide-field image of the Bubble Nebula region including several Sharpless Objects as well as the open cluster Messier 52.
Tech Specs: Williams Optics REDCAT51, ZWO ASI071mc-Pro running at -5C, Sky-Watcher EQ6R-Pro mount, 4 hours total using the Optolong L-eNhance filter, guided using a ZWO 30mm f/4 mini guide scope and ZWO 120 Mini, controlled with a ZWO ASIAir Pro running v1.5 Beta software. Image date: October 13 and November 3, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
The Bubble Nebula or NGC 7635 is an emission nebula in the constellation Cassiopeia. This is hopefully the start of several hours of data I plan to collect.
Tech Specs: Meade 12” LX90, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 1600, 31 x 60 second exposures using Backyard EOS, 5 x 60 sec darks and 5 x 1/4000 sec bias frames, guided using a Canon 100mm lens with an attached ZWO ASI290MC camera. Image Date: September 20, 2017. Location: The Dark Side Observatory in Weatherly, PA.
NGC 7635 is an H II emission region in the constellation of Cassiopeia in a distance of about 7100 lightyears from earth. The image is a combination of 45 images with the mono camera ZWO ASI1600mmpro and 45 RGB images shot with a standard Pentax K3II
TS 130/910 mm apo, MGEN II, MFOC, EQ6-R.
45 x 300s gain 130 Baader 7nm Ha with ASI1600mmpro
45 x 300s ISO 800 Pentax K3II
The Crescent Nebula is an emission nebula in the constellation Cygnus, about 5000 light-years away from Earth. It was discovered by William Herschel in 1792.
I've been imaging the Crescent Nebula area over the last week when I got clear nights. I managed to get 5 nights with an average of 4+ hours each night, for an integration time over 20 hours. This is by far the longest integration time I've ever acquired. I wanted to experiment with longer integration times with an OSC camera (ASI2600MC Pro).
I used the FLT132 with the FLAT8 reducer (0.72x) to get a slightly wider field of view; it just about includes the Soap Bubble at the top left(ish) corner. I also used a combination of narrowband filters (Optolong L-Ultimate 3nm Ha & Oiii, IDAS NBZ and Antlia ALP-T 5nm Ha & Oiii) as well as a more broadband filter, Antlia Triband RGB Ultra. I think the combination of all the filters provides a more balanced set of colours, including a decent amount of Oiii detail in the Crescent Nebula.
Processed in PixInsight and Affinity Photo 2.
More acquisition details in Astrobin: astrob.in/08co9c/0/
Thanks for looking!
CS
Eduardo
The Bubble Nebula and the open star cluster M52 in a bicolor image (hydrogen alpha + Oxygen III).
ASI1600mmpro on a TS 130/910 mm aop.
45 x 300 s Ha
47 x 300s OIII
The Bubble Nebula is an emission nebula that lies in the northern constellation of Cassiopeia at a distance of approximately 7100 light years from Earth. What looks like a massive soap bubble in space is the effect of the solar wind of a bright young star at the centre of the bubble tearing through the large molecular cloud surrounding it. As the charges particles of the solar wind collide with these gasses, they are ionized and set aglow.
This entire region of space if very busy containing several deep nebulae and clusters. At the bottom left, we can see a portion of the Lobster Claw Nebula. At the top left we can see Mession 52 (M52) The Cassiopeia Salt-and-Pepper Cluster. At the bottom centre, we can see part of the emission / reflection nebula NGC 7538
Tech Data:
Explore Scientific ED80
Celestron AVX, guided
ZWO ASI1600MC Pro camera @ -20ºC
Baader UV/IR Cut Filter
30 x 3 min exposures
The Bubble Nebula in narrowband.
HA, Sll, and Olll. All exposures were 30 minutes each, with a total exposure time of 26 hours.
Combined in the Hubble palette.
Scope:- TEC140
Mount:- Avalon fast reverse.
Camera:- Atik 490 cooled to -10
Captured in SGP
Processed In Photoshop and Pixinsight
Shot at home in the Uk, just north of Cambridge.
Cluster M52 (top right) & NGC7635 The Bubble Nebula (centre). cropped widefield shot on the 20th September using a Ha filter for red channel - 2 hours exposure (120x60 seconds), Oii filter on 27th September for Green and blue channel - also 120x60 seconds.
TS65 Quad Astrograph & ASI1600MM Pro camera. Shot from London.
The Bubble Nebula or NGC 7635 is an emission nebula in the constellation Cassiopeia that forms the look of a bubble in space. Messier 52 (M52, NGC 7654) is an open star cluster also found in the constellation Cassiopeia. Distances to this open cluster vary from 3,000 to 7,000 light years. I have read some estimates that this cluster has over 190 members.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 95 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: June 11, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.
Wikipedia (en.wikipedia.org/wiki/Messier_52)
Wikipedia (en.wikipedia.org/wiki/NGC_7635)
Cluster M52 (top), NGC765 The Bubble Nebula (centre) & NGC7538 (bottom). Widefield shot using a Ha filter, TS65 Quad Astrograph & ASI1600MM Pro camera. 2 hours exposure (120x60 seconds). Shot from London
NGC 7635, also known as the Bubble Nebula, Sharpless 162, or Caldwell 11, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star. The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.
32 hours of total integration. 57x1200s Ha, 30x1200s OIII, 10x300s Red, 10x300s Green, 12x300s Blue
APM TMB 152 F8 LZOS, 10 Micron GM2000HPS, QSI6120ws8
NGC 7635, Bubble Nebula. A small version of my image from Saturday night. Despite clouds off and on all night, I managed 4.5 hours of decent data (3 hrs of Hα and 1.5 hrs of OIII) and processed as a Bi-color image. I had hoped to get some SII as well, but it wasn't in the cards for the night with the weather. Considering I haven't gotten to image in a long time, I am happy with how the evening went and just able to get any data and work the kinks out of all the equipment.
Higher resolution: www.eprisephoto.com/nebula/h53B9204B