Image: 2019 S 1 CFHT 2019-07-01 5x205s stack annotated

Description: Median-stacked set of five CFHT images of Saturn's moon S/2019 S 1 (indicated between red bars) on the day of its discovery, which is tracked to its motion to make it more visible among the surrounding stars. The median stack of multiple images is necessary to detect the moon, as it is extremely faint (magnitude 25) and barely visible in the individual frames. Each frame is a 205-second exposure in the wild-band GRI filter, with mid-exposure times starting from 1 July 2019 09:37:32 to 11:37:08 UT. The frames are separated by approximately 30-minute intervals. North is up and East is left.
Title: 2019 S 1 CFHT 2019-07-01 5x205s stack annotated
Credit: Raw images provided by the Canadian Astronomy Data Centre's Solar System Object Image Search.
Author: Edward Ashton/CFHT/Canadian Astronomy Data Centre, processed by Nrco0e
Permission: This image was publicly provided from the Canadian Astronomy Data Centre, which states that "Data held in the CADC archive are open as part of the Government of Canada's Open Science Commitment. Data deposited into the CADC archive are public domain and made available under the Creative Commons License CC BY 4.0." (https://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/about.html)
Usage Terms: Creative Commons Attribution 4.0
License: CC BY 4.0
License Link: https://creativecommons.org/licenses/by/4.0
Attribution Required?: Yes