Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of $α$ Cen A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits — mentioned by pas

Thu, 07 Aug 2025 08:44:59 GMT

> a massive shell that is hollow inside /s aren't we all? /? > nature of the surface? so Jupiter is 317.8 M⊕, this thing is around 80-150, but ... Saturn is right there at 80 ... so unlikely to have a solid surface, but likely has a rocky core, and wild winds at this temperature. (Saturn's average temp is -178C, -138C "surface", and this candidate seems to have -48C.) https://arxiv.org/html/2508.03814v1/MR_relation.jpg It seems that all of this is based on 2 data points, and they only provide some examples that are consistent with that, but the models are also very low-confidence (as we don't…

Paper and discussion history. A mention is not an endorsement.

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of $α$ Cen A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits — HN submission

Thu, 07 Aug 2025 01:42:18 GMT

A candidate giant planet imaged in the habitable zone of α Cen A

119 points; 45 discussion replies on HN. Paper and source history. A submission is not an endorsement.

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of $α$ Cen A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits · HackerPapers discussions

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of $α$ Cen A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits — mentioned by pas

Worlds Next Door: A Candidate Giant Planet Imaged in the Habitable Zone of $α$ Cen A. I. Observations, Orbital and Physical Properties, and Exozodi Upper Limits — HN submission