Fish Head Nebula (Mike Hamende)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · LBN 645 · LBN 646 · LBN 647 · LDN 1359 · NGC 896

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Fish Head Nebula

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Fish Head Nebula

I had been flirting with the idea of getting an EdgeHD 8 for a while but they've been out of stock everywhere for quite a while. I don't remember exactly how I found it but I stumbled upon an open box, like new EdgeHD on B&H photo and before I even knew what was happening I ordered the scope. Many people people have reported issues with chromatic aberration when using the reducer with this scope so I decided I would go without for the time being.

While using the scope for the first time I was plagued with oval stars even with 1 second exposures. I eventually discovered that the fan in my ASI2600MM was very poorly balanced leading to vibration in the imaging train. I replaced the fan and mounted it with silicone vibration isolators and now all is well. The fan replacement also improved the guiding from 0.8" down to 0.4" RMS with decent seeing.

It is a relatively short integration due to weather but imaging at f/10 is not nearly as bad as I would have thought, and I didn't even bother taking flats with this "evaluation" run.

Please note: The following tables are updated every 24 hours.

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	8728239
PixInsight job	I6BGT1HBHKEVFUM57YMOP8MMQLUIXH6N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h26m13s.583
RA (top/left)	02h24m29s.980
RA (top/right)	02h24m26s.678
RA (bottom/right)	02h27m56s.160
RA (bottom/left)	02h28m02s.353

Dec (center)	+62°08′52″.23
Dec (top/left)	+62°25′28″.24
Dec (top/right)	+61°52′33″.77
Dec (bottom/right)	+61°52′11″.90
Dec (bottom/left)	+62°25′05″.17

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Fish Head Nebula

Fish Head Nebula

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Image Index:

Contribution Index (beta):

Fish Head Nebula

Fish Head Nebula

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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