vdB 105 (Gary Imm)

Celestial hemisphere: Southern · Constellation: Ophiuchus (Oph) · Contains: IC 4603

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vdB 105

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vdB 105

This object, also known as IC 4603, is a reflection nebula located about 400 light years away in the constellation of Ophiuchius. This field of view is just a small part of the beautiful Rho Ophiuchus Nebula Complex.

The image is primarily blue because of the starlight illuminated interstellar dust throughout the field of view. The same dust creates an orange cast to the background stars. The dust is so thick in spots that it completely hides some of the stars. The small, bright flare-type area at the top right of the image is interesting, as is the "E-E-E" shaped dark dust cloud just below it.

This was a tough object to image and process. In my subs, all I saw were the 2 central stars plus a few hints of dark clouds. I stretched the final image quite a bit to help bring out the beautiful subtle dark dust clouds flowing throughout the image. This stretching also brought out more of the noise in the image.

I am very happy and excited to be imaging again after over a month of downtime, due to a mount repair and a wonderful family trip to Slovenia and Croatia.

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M
vdB Reflection Nebula

Reflection Nebulae

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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	2739560
PixInsight job	DY05TZ8NJ23SZ5QXUATA2MC0A3KE0Y8E
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	16h25m24s.465
RA (top/left)	16h26m48s.180
RA (top/right)	16h26m56s.694
RA (bottom/right)	16h24m01s.519
RA (bottom/left)	16h23m51s.563

Dec (center)	-24°28′03″.78
Dec (top/left)	-24°56′52″.70
Dec (top/right)	-24°00′43″.10
Dec (bottom/right)	-23°59′11″.57
Dec (bottom/left)	-24°55′21″.39

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vdB 105

vdB 105

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vdB 105

vdB 105

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