Warrick
• Member for 7 years, 9 months
• Last seen this week
• Birmingham, UK

You probably need someone better versed in the history of astronomy than me, but I'll give it a stab. As you've already noticed, the Wikipedia article on stars named after people has some entries, ...

I'm not entirely sure, but I would guess that it's simply because the discoverer suggested it. After a few steps in the process of characterizing an asteroid's orbit, the discoverer gets to suggest a ...

Basically you need to convert between luminosities (which you can add) and magnitudes using $$M-M_\odot=-2.5\log_{10}(L/L_\odot)$$ Let's call the total luminosity $L_0$ and magnitude $M_0$ and the ...

Definitely radii, with one notable exception... When observers talk about how large an object is on the sky, they usually discuss angular size, which is related to the diameter of an object, not the ...

I'm no expert on stellar atmospheres, so I have a limited idea of how things like $\log g$ affect the lines. But I work with stellar models, so I can take a stab at that part. The overall principle ...

In this case, Wolfram|Alpha has you covered. For example, look at the result for "which constellation was the Sun in Jan 1 1400". That said, I'm not sure this calculate includes the precession of ...

I haven't looked in too much detail, but the first point is to note that there are two estimates of the age: 6.6–6.9 Gyr and 9.3 Gyr. The latter is given without uncertainties, but I looked it up on ...