NGC 7635 also commonly known as the Bubble Nebula is an H II rich emission nebula in Cassiopeia. The bubble is formed by the extremely fast stellar wind of an ionized star coming from a massive star. This is the brightest star inside the nebula on the right.
The Bubble Nebula was first discovered by William Herschel in 1787.
I had to use an Optolong L-eNhance 2″ filter due to the moon being at 97% and my setup being under Bortle 6/7 skies.
Here you can see the area of the sky in Cassiopeia imaged.
Click here for an annotated version of this target.
Acquisition Data
- Telescope: Explore Scientific ED127 Air-Spaced Triplet Apochromatic Refractor
- Camera: ZWO ASI2600M Pro
- Guide Scope: Orion ST80
- Guide Camera: ASI290MM Mini. Dithering every image at 1 pixel each time.
- Mount: iOptron CEM60
- Software: NINA for image acquisition. PixInsight used for stacking and editing. Imported to Photoshop for final touchup and watermarking.
- Other Accessories: AstroZap Dew Heater, Explore Scientific 2″ Field Flattener, ZWO EAF Motorized Focuser, Pegasus Astro Power Box Advance
- Filters:
- Optolong L-eNhance 2″ (35 x 300s)
- Optolong L-eXtreme 2″ (34 x 600s)
- Exposure Time: 8 hour 35 minutes Gain 100, 20°C bin 1×1
- Date: December 07, 08, 2020
- Location: Raritan, NJ, United States
- Temperature: 30°F/1°C
- Bortle Dark-Sky Scale: 4
- RA center: 23h 20′ 45″
- DEC center: +61° 11′ 2″
- Orientation: -135.991 degrees
- Field radius: 1.190 degrees
- Magnitude: 10
- Resolution: 3720 x 2330
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Click here for an annotated version of this target.
Processing Info
I stacked the 18 light frames along with 40 dark and 50 flat frames in PixInsight
The following processes were performed in PixInsight:
- Dynamic Crop
- Automatic Background Extraction
- Background Neutralization
- Photometric Color Calibration
- MultiScale Linear Transform
- Histogram Transformation
- Curves Transformation
- HDR Multiscale Transformation
- StarMask
Once I found what I liked, I saved the files and went to Photoshop, and ran Topaz AI DeNoise. This is an amazing plugin that works like magic.
If anyone is curious here are the full-res versions of the images.
Acquisition Data
- Telescope: Explore Scientific ED127 Air-Spaced Triplet Apochromatic Refractor
- Camera: ASI071MC Pro
- Guide Scope: Orion ST80
- Guide Camera: ASI290MM Mini. Dithering every image at 1 pixel each time.
- Mount: iOptron CEM60
- Software: NINA for image acquisition. PixInsight used for stacking and editing. Imported to Photoshop for final touchup and watermarking.
- Other Accessories: AstroZap Dew Heater, Explore Scientific 2″ Field Flattener, ZWO EAF Motorized Focuser, Pegasus Astro Power Box Advance
- Filters: Optolong L-eNhance 2″
- Exposure Time: 1 hour 30 minutes (18 X 300 seconds). Gain 90, 0°C bin 1×1
- Exposure Start: 23:09
- Date: July 06, 2020
- Location: Raritan, NJ, United States
- Temperature: 74°F/23.3°C
- Bortle Dark-Sky Scale: 6
- Astrometry.net job: 3801185
- Avg. Moon age: 16.11 Days
- Avg. Moon phase: 97.98%
- RA center: 23h 20′ 45″
- DEC center: +61° 11′ 2″
- Orientation: 271.287 degrees
- Field radius: 0.650 degrees
- Magnitude: 10
- Resolution: 3720 x 2330
-
-
-
-
-
-
Click here for an annotated version of this target.
Acquisition Data
- Telescope: Explore Scientific ED127 Air-Spaced Triplet Apochromatic Refractor
- Camera: ZWO ASI2600M Pro
- Guide Scope: Orion ST80
- Guide Camera: ASI290MM Mini. Dithering every image at 1 pixel each time.
- Mount: iOptron CEM60
- Software: NINA for image acquisition. PixInsight used for stacking and editing. Imported to Photoshop for final touchup and watermarking.
- Other Accessories: AstroZap Dew Heater, Explore Scientific 2″ Field Flattener, ZWO EAF Motorized Focuser, Pegasus Astro Power Box Advance
- Filters:
- Optolong L-eNhance 2″ (35 x 300s)
- Optolong L-eXtreme 2″ (34 x 600s)
- Exposure Time: 8 hour 35 minutes Gain 100, 20°C bin 1×1
- Date: December 07, 08, 2020
- Location: Raritan, NJ, United States
- Temperature: 30°F/1°C
- Bortle Dark-Sky Scale: 4
- RA center: 23h 20′ 45″
- DEC center: +61° 11′ 2″
- Orientation: -135.991 degrees
- Field radius: 1.190 degrees
- Magnitude: 10
- Resolution: 3720 x 2330
Click here for an annotated version of this target.
Processing Info
I stacked the 18 light frames along with 40 dark and 50 flat frames in PixInsight
The following processes were performed in PixInsight:
- Dynamic Crop
- Automatic Background Extraction
- Background Neutralization
- Photometric Color Calibration
- MultiScale Linear Transform
- Histogram Transformation
- Curves Transformation
- HDR Multiscale Transformation
- StarMask
Once I found what I liked, I saved the files and went to Photoshop, and ran Topaz AI DeNoise. This is an amazing plugin that works like magic.
If anyone is curious here are the full-res versions of the images.
Acquisition Data
- Telescope: Explore Scientific ED127 Air-Spaced Triplet Apochromatic Refractor
- Camera: ASI071MC Pro
- Guide Scope: Orion ST80
- Guide Camera: ASI290MM Mini. Dithering every image at 1 pixel each time.
- Mount: iOptron CEM60
- Software: NINA for image acquisition. PixInsight used for stacking and editing. Imported to Photoshop for final touchup and watermarking.
- Other Accessories: AstroZap Dew Heater, Explore Scientific 2″ Field Flattener, ZWO EAF Motorized Focuser, Pegasus Astro Power Box Advance
- Filters: Optolong L-eNhance 2″
- Exposure Time: 1 hour 30 minutes (18 X 300 seconds). Gain 90, 0°C bin 1×1
- Exposure Start: 23:09
- Date: July 06, 2020
- Location: Raritan, NJ, United States
- Temperature: 74°F/23.3°C
- Bortle Dark-Sky Scale: 6
- Astrometry.net job: 3801185
- Avg. Moon age: 16.11 Days
- Avg. Moon phase: 97.98%
- RA center: 23h 20′ 45″
- DEC center: +61° 11′ 2″
- Orientation: 271.287 degrees
- Field radius: 0.650 degrees
- Magnitude: 10
- Resolution: 3720 x 2330