M27 with ASI1600MC-C (2x2 bin OSC) (steven_usa)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853

M27 with ASI1600MC-C (2x2 bin OSC), steven_usa

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M27 with ASI1600MC-C (2x2 bin OSC)

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M27 with ASI1600MC-C (2x2 bin OSC)

REV. A) July 2017

25x120" Gain 0 / Offset 10 @ -10degC.

ASI1600MC-C with VC200L (focal reduced x0.71, ~1278mm FL)

200 bias frames @ 0.3sec

60 flats frames @ 0.4sec

39 dark frames (120sec x -10degC)

2x2 binned

M27 is a common object, but it is useful for calibrating color reference and general equipment performance relative to others.

REV B) This version is 53x120" (including the 25 from Rev A). There is a faint bit more detail of the nebula (particularly "waves" on the right side in this view, and a wisp beyond the "apple core" portion). But this version was also processed somewhat differently, which is the main reason for a more overall "brightness" increase and more stars to be present.

53x120" Gain 0 / Offset 10 @ -10degC (and all same equipment)

REV C) This is 73x120", same setup, but taken nearly 11 months later (2018). 0/10, -10degC.

Original
B
Final
C
D

C

Description: Data from June 17 2018 4am CST.

84x120sec 2x2 binned 0 gain 10 offset.

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	Distinct awarded users	Total awarded images
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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
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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
Traveller
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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.
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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	Basic success
Started	...
Astrometry.net job	4049327
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M27 with ASI1600MC-C (2x2 bin OSC)

M27 with ASI1600MC-C (2x2 bin OSC)

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Image Index:

Contribution Index (beta):

M27 with ASI1600MC-C (2x2 bin OSC)

M27 with ASI1600MC-C (2x2 bin OSC)

Equipment

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Description

Comments

Revisions

C

Sky plot

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