The STEREO HI2 optical train is a bit unusual because of the unique mission requirements, but this is what its lens flares look like. You have to compare apples to apples, against other HI2 images. That is why I checked other images when Venus was at the same angular separation from the sun, this flare always appears then, but that does not correspond to any particular location in space, just relative to Venus and the sun. ... https://www.youtube.com/watch?v=ohQQ21K1ais
Music: Grand Orrery by Stellardrone
11" Celestron NexStar GPS and Blackmagic Pocket Cinema 4K
Aligned and stacked in 900 frame increments using custom Python software. First test of automatic field rotation removal.
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https://www.youtube.com/watch?v=iq6cwi5RCyU
Launch video:
https://www.youtube.com/watch?v=0MDBAv-JvmE
Simulation of the outbound flight based on my data:
https://www.youtube.com/watch?v=jfC3sBmrfxU
Music: The Impossible by Savfk | https://www.youtube.com/savfkmusic
Music promoted by https://www.free-stock-music.com
Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/
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https://www.youtube.com/watch?v=bivxLB6AW1w
Whatever remains of the comet is not nearly as bright, active, or condensed as the original intact nucleus prior to perihelion. It appears that our hopes for a great comet post-perihelion have been dashed.
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https://www.youtube.com/watch?v=CiZfNMAzCB0
Manual processing of the raw STEREO heliospheric imager data. NASA's method of automatically processing the heliospheric imager data relies on using previous images to calibrate the current images. The tenuous heliosphere is not visible in the uncalibrated data due to glare from the sun. Processing the images based on the images that preceded it inevitably leads to processing artifacts from bright planets and stars. In order to process the raw data, I used PixInsight's dynamic background subtraction to remove the glare from the sun from each image using only the data present in that same image. This seems to produce a much clearer star field at the expense of some residual solar glare.
2 hour cadence for the month of September. Future videos will further refine the dynamic background subtraction technique by increasing the sampling of each image.
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https://www.youtube.com/watch?v=tVDoN4bpODk
Stacked image time lapse of 2I/Borisov from the images collected during last night's live stream.
Stacked image of the comet with star trails:
https://drive.google.com/file/d/1uZJr1gFthT1V6khmng-7ODaB0RgDFDKc/view?usp=sharing
Sigma clipping stack of the comet without background star trails:
https://drive.google.com/file/d/19hevjpxFCNzJmoHO4xLRoYe6NZ_FZfeA/view?usp=sharing
Captured with an 8" Meade LX200 Classic using 2 minute exposures with an SBIG ST-2000XCM and AO-7 adaptive optics.
Music: Endeavour by Stellardrone
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https://www.youtube.com/watch?v=vRRy9RlxpGM
Captured with an Orion ST-80 piggyback on an LX200 classic in alt/az configuration. Tracked with NEOTraker. Images recorded with an SBIG ST-2000XCM.
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Open source astronomy software by Astronomy Live:
https://github.com/AstronomyLiveYt?tab=repositories
Music by Stellardrone
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https://www.youtube.com/watch?v=kxP36fE5Iis