LDN 204 & LDN 234 (Samuel Kohler)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: LDN 191 · LDN 204 · LDN 234 · LDN 244 · The star 20 Oph

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LDN 204 & LDN 234

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LDN 204 & LDN 234

Intrigued by the beauty of dark nebulae, I looked forward to image one of these objects for quiet some time. Out of the variety of these mysterious clouds, LDN204 & LDN234 are the two of them that I am most appealed of. With a promising weather-forecast for that weekend and now equipped with an optic that let me go a bit deeper than my camera, I took my chance and gave it shot.
I am fascinated by this nebula's immense density - covering up all the light that probably radiates behind it and not revealing those secrets to us.

LDN204
LDN234

06/23/2023, 11.50pm, 47° N, 3130 ft, wind mostly calm, temperature 15°C, dewpoint 10°C, humidity 71%
lights 44x 120sec, filter: none (50 flats, 50 flatdarks, 50 darks)

integration: 1h 28min 00sec
sensor: SONY Exmor IMX183CLK-J/CQJ-J (ASI183MC)
lens: FRA400, f/3.9 at 280mm
mount: EQ6-R Pro
guidingsensor: AR0130CS (ASI120MM) & OAG
preprocess: DeepSkyStacker
postprocess: Pleiades Astrophoto, PixInsight

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	8343791
PixInsight job	L24Y7SV5LS68VT3SL6X4H4PB8PEY5ZQP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h48m40s.20
RA (top/left)	16h53m00s.82
RA (top/right)	16h51m36s.69
RA (bottom/right)	16h44m21s.77
RA (bottom/left)	16h45m41s.84

Dec (center)	-11°31′02″.4
Dec (top/left)	-12°44′11″.1
Dec (top/right)	-10°04′12″.4
Dec (bottom/right)	-10°17′39″.5
Dec (bottom/left)	-12°57′45″.7

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LDN 204 & LDN 234

LDN 204 & LDN 234

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LDN 204 & LDN 234

LDN 204 & LDN 234

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