M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels (Freestar8n)

Celestial hemisphere: Southern · Constellation: Serpens (Ser) · Contains: Eagle nebula · IC 4703 · M 16 · NGC 6611 · Sh2-49 · Star Queen nebula

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M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

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M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

This is largely an experiment to see how well a narrowband Oiii image could be captured using the B and G pixels of an OSC camera. The B and G pixels receive about equal signal from the Oiii line, which means 3/4 of the pixels are capturing good signal and the loss from using OSC vs. mono are not as great as expected.

In addition, the individual color channels were drizzled to create separate R, G, B channels all co-aligned, and each at full res. because of drizzling and dithering.

The total exposure here is 30x2m or one hour - with a full moon very nearby.

No processing other than levels in photoshop. No cropping or gradient removal. The lack of gradient given the light pollution and moon presence reveals all the benefits of narrowand despite using an OSC camera and fairly wide bandpass Baader high speed filters with hyperstar.

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

Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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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
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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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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.

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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.
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Status	Advanced success
Started	...
Astrometry.net job	2122925
PixInsight job	MHDARHM95C8HHBMO05K3FVCK92THI012
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h18m56s.190
RA (top/left)	18h21m46s.302
RA (top/right)	18h16m10s.209
RA (bottom/right)	18h16m05s.174
RA (bottom/left)	18h21m42s.595

Dec (center)	-13°51′32″.50
Dec (top/left)	-13°24′59″.20
Dec (top/right)	-13°23′23″.23
Dec (bottom/right)	-14°17′59″.14
Dec (bottom/left)	-14°19′36″.33

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M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

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Image Index:

Contribution Index (beta):

M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

M16 in Oiii with Hyperstar and ASI183MC OSC camera, using only B and G pixels

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Description

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