M78 Casper Mosiac (drblevy13)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: HD290862 · HD290865 · HD290866 · HD290867 · HD38563 · LBN 938 · LBN 939 · M 78 · NGC 2064 · NGC 2067 · NGC 2068 · NGC 2071 · VdB60

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M78 Casper Mosiac

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M78 Casper Mosiac

Casper the Friendly Ghost was the first broadband nebula I had photographed when I first got into astrophotography two years ago. At the time, I had done it with the Hyperstar, which was a lot of fun to see things take shape so quickly but at that focal length I came to realize that I wasn't getting nearly as much fine detail as I could achieve at f/7 or f/10 with the EdgeHD 11". I had attempted to shoot at f/10 but got nowhere fast because of such a slow speed. After fine-tuning my setup and realizing that most of my "tilt" problem with the f/7 reducer was actually fan vibration from the camera, I decided to move forwards at attempting a mosaic of M78, which is something I thought about doing for several years.

This ended up being more of a challenge than I predicted due to field curvature, trees and wind! If I was lucky, I would get 4 hours per night. After over a month of waiting, scrapping subs, reshooting and experimentation, I finally had enough data to stitch together. The process crashed my computer on several occasions, so this image has also gotten me interested in building a new computer at some point soon...

After all this, here we have M78, as close up as I can obtain in my backyard.

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Final
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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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	6650070
PixInsight job	78P5WAILA9VHI590S8XEKUN68WDKI8O8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h46m42s.120
RA (top/left)	05h46m06s.885
RA (top/right)	05h45m09s.737
RA (bottom/right)	05h47m17s.518
RA (bottom/left)	05h48m14s.254

Dec (center)	-00°04′21″.96
Dec (top/left)	+00°30′50″.20
Dec (top/right)	-00°32′23″.90
Dec (bottom/right)	-00°39′35″.84
Dec (bottom/left)	+00°23′38″.80

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M78 Casper Mosiac

M78 Casper Mosiac

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M78 Casper Mosiac

M78 Casper Mosiac

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