Gliese 876... super-Earth
Hi All
LJK already posted on this but here's Marcy & Butler's own web-site...
Exoplanets Org
...California & Carnegie Planet Search. All the publishable data on GL 876d - they reckon it might be inclined at 40 degrees and so the mass is 7.5 Earths.
Makes it sound like a stripped Neptune, as a heavier progenitor wouldn't lose H/He mass fast enough. It might have high-pressure oceans if it can dump day-side heat quick enough.
Adam