A parsec is a standard astronomical measurement that is often misunderstood. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A parsec is a unit ...
- a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years ...
Earth's distance from the sun does not stay the same throughout the year. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An astronomical unit ...
Figure 1: Hardness ratio (HR2) distribution of X-ray point sources with net counts of C ≥ 100 at a projected radial distance from Sgr A*. Before concluding that the HR2 probability distribution in the ...