[Peter Ward]

Hard to believe it's been a year, but shortly Royal Greenwich will launch their 2020 competition.

I see the rules have been clarified somewhat:

Photos that have been published in other competitions.

If you have entered your Images into a competition which might publish it and are waiting for the results, please do not enter it into the competition –

It is not eligible. Examples of ineligible competitions and publications include The World at Night (TWAN), BBC Sky at Night Magazine, Sky and Telescope Magazine, etc. Please note that Images that have won prizes in other competitions are eligible as long as the Images has not been published"

If you want to enter the CWAS/Malins, and it wins something, they have now made it pretty clear the same image will be ineligible at Greenwich.