M27 (Dumbbell Nebula) (Don Alm)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · HD189733 · HD345317 · HD345443 · HD345444 · HD345445 · HD345446 · HD345447 · HD345448 · HD345449 · HD345450 · HD345451 · HD345452 · HD345453 · HD345454 · HD345455 · HD345456 · HD345457 · HD345458 · HD345461 · HD345463 · HD345465 · HD345469 · HD345470 · M 27 · NGC 6853 · PK060-03.1

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M27 (Dumbbell Nebula)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Powered byPixInsight

M27 (Dumbbell Nebula)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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ACQUISITION DETAILS
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Target: Dumbbell Nebula (M27)
Start Date: 7/8/2023
Start Time: 00:24 EDT
End Date: 7/8/2023
End Time: 00:36 EDT
Guiding: No
Gain: 100
Cooling Target: -10 C
Actual Cooling: -10.0 C
Exposure: 10s
Bin: Bin1
Flat: Yes - 20 x 3s
Dark: Yes - 20 x 10s
Bias: Yes - 20 x 3s
Stacked: 62
Ignored: 0
Average Star Size:
Focal Length: 1016 mm
Integration Time: 10 min, 20 sec
Used Live-Stacked FITS file from ASILive on ASIAir Plus

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EQUIPMENT
*************
Camera: ZWO ASI533MC-Pro
Filter: ZWO UV/IR Cut
Telescope: Celestron NexStar 6SE
Reducer: Celestron 0.63x Reducer
Mount: ZWO AM5
Tripod: ZWO TC40
Guide Scope: None
Guide Camera: None

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SKY CONDITIONS
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Bortle Level: 5
Transparency: 3/7 - See 3 of 7 stars in the Little Dipper - High clouds and hazy
Seeing: Below Average - Lots of twinkling stars
Astrospheric Cloud Cover: 78%
Astrospheric Transparency: Cloudy
Astropheric Seeing: Cloudy
Moon in Sky?: 60.6 degrees to the east - 70.4% illuminated -- rose at 00:14 EDT
Temperature: 72 F
Wind: Calm
Humidity: 93%
Dew Point: 70 F

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POST-PROCESSING WORK FLOW
***********************************
PixInsight
1. Script: ImageSolver
2. Process: Dynamic Crop
3. Script: ImageSolver
4. Process: SpectrophotometricColorCalibration (Defaults)
5. Process: SCNR (Amount 1.00)
6. Process: BlurXTerminator (Defaults)
7. Process: ScreenTransferFunction
8. Process: HistogramTransform (keep at default)
9. Process: NoiseXTerminator (Denoise: 0.75)

GIMP
1. Saturation (1.50)
2. Adjust Color Levels (slide blacks to right to make sky darker)
2. Crop Image (2400 x 2400)

EAA - Post-Processed
Nebulae

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Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	8005440
PixInsight job	5XL6XNGQH0N08ZIB1FXE0Z8OY0HP5LXK
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m36s.602
RA (top/left)	19h59m15s.667
RA (top/right)	19h58m05s.430
RA (bottom/right)	19h59m57s.443
RA (bottom/left)	20h01m07s.962

Dec (center)	+22°43′17″.61
Dec (top/left)	+23°04′20″.56
Dec (top/right)	+22°38′26″.89
Dec (bottom/right)	+22°22′15″.25
Dec (bottom/left)	+22°48′04″.31

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M27 (Dumbbell Nebula)

M27 (Dumbbell Nebula)

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M27 (Dumbbell Nebula)

M27 (Dumbbell Nebula)

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