Bombardment at Hanle (Basudeb Chakrabarti)

Contains: Extremely wide field

Bombardment at Hanle

Bombardment at Hanle:

The recent launch of low Earth orbit satellite constellations is creating a growing threat for astronomical observations with ground-based telescope, that has alarmed the astronomical community. Observations affected by artificial satellites can become unusable for scientific research, wasting a growing fraction of the research budget on costly infrastructures and mitigation efforts. The swarm of satellites functioning in low Earth orbit has more than doubled since 2019, when space-based internet initiatives really started to take off. The numbers are pretty staggering. There are some 9,800 satellites in orbit around Earth today, around 7,200 of which are still functioning. By 2030, the number of satellites cluttering low Earth orbit could grow to 75,000, according to the European Southern Observatory. SpaceX alone has plans to launch 42,000 satellites for its Starlink internet service.

Usually during stacking of our Astrophotography Images, the stacking softwares use a special technique called Pixel Rejection method which removes the unwanted satellite trails from our stacked image. But to show the pollution/problem caused by the man-made Artificial Satellites in Astronomy, I have used a special technique to produce this image which was captured during our latest Astrophotography Worksdhop at Hanle, Ladakh. I have stacked the images in normal way to produce the main image and stacked another image to get the Satellite trails. Then I have blended these images together to produce the final image.

Exif: Nikon Z6-II, Tokina Opera 16-28
I-Optron Sky Guider Pro
Benro Rhino Series Tripod
30X60 sec, F4, ISO4000, @16mm
Post Processing: Sequator, Pixinsight, Photoshop

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	Basic failed
Started	...
Astrometry.net job	7965666
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Bombardment at Hanle

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