Year: 2025
Type: article
Abstract: Cameras with a super-wide field of view, defined here as being at least 20 degrees on one side, are widely used in site testing and time-domain astronomy. However, they intrinsically require optics with non-linear projections, making it challenging to use traditional astrometric methods. We have developed a generalized astrometric method that is applicable to images with super-wide fields of view. We applied the method to images from an all-sky camera and obtained the astrometric solutions. The positional accuracy we achieve in analysing 5170 all-sky images is typically 0.4 pixels in (x, y). Our method is a generalized method suitable for all images with super-wide fields of view.
Source: Astronomy and Astrophysics
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,865
OpenAlex ID: W4407688532