Suit limits and personal records

I've read that the temperature limit on the Artemis suit is 800K.
Last night I stepped out on a planet that was 770K so I thought I would start tracking my personal temperature extremes. That was the day side of a planet in a neutron star system.
Then I landed on a 3g planet and I couldn't get out, so added gravity extremes to the list.
I couldn't disembark on a 2.8g world but I could on 1.66g. Does anyone know what the limit is? 2g?
I wasn't tracking lowest gravity or lowest temp, but as of now 1.66g and 770K are my highest.
What's the highest you've seen and/or personally walked on?

Link 1: https://i.imgur.com/C6e9GpJ.jpg

Link 2: https://i.imgur.com/o0vXeL4.jpg