Thetis (minor planet designation: 17 Thetis) is a stony asteroid from the inner regions of the asteroid belt, approximately 90 kilometers in diameter.
The asteroid orbits the Sun at a distance of 2.1–2.8 AU once every 3 years and 11 months (1,419 days). Its orbit has an eccentricity of 0.13 and an inclination of 6° with respect to the ecliptic.
Data captured 04 May, 2019.
75x 3 minute exposures with Luminance filter.
Images captured between 11pm & 3.30am.
Total Exposure = 3.75 hours.
Skywatcher Quattro 200 CF
Atik 428EX Mono
This image was processed in Pixinsight & PIP.
Calibration in Pixinsight using Batch PreProcessing.
STF & Histogram Transformation - To Apply an AutoSTF.
Dynamic Crop - To remove black edges & integration artifacts. (Each Channel)
All images saved as JPEG and imported into PIPP.
Gamma set to 0.8.
Enabled Horizontal & Vertical Flip.
Framerate set to 15fps.
Exported as full resolution AVI & GIF, image on this website is GIF resized to 500px wide. The AVI is much smoother but unfortunately my website doesn't currently support videos.