The HR Diagram is a chart to categorize what?
What is a star?
Dynamic Equilibrium is a balance between these two forces.
What are Fusion Pressure and Gravity?
These sky coordinates correlate to Latitude and Longitude on the Earth's surface.
What are Right Ascension and Declination?
Astrobiology pertains to the study of the possibility of this.
What is extraterrestrial life?
This scientist created a catolog of 3222, made the first attempt at measuring parallax, and laid the groundwork for Bessel's later research.
Who is James Bradley?
This type of star has the longest lifespan, and is so dim it is often called a "failed star"
What is a red/brown dwarf?
This is the first element that is fused in a star. Following this is Helium, and then Carbon.
What is Hydrogen?
This is the term for the movement of an object across the sky.
What is proper motion?
This defines the region around a star where life can be formed.
What is the Habitable Zone?
This Greek Philosopher is considered by most to be the Father of Modern Astronomy.
Who is Hipparchus?
This element is the last one in the order of fused elements in a star, and is often responsible for the collapse of dynamic equilibrium.
What is iron?
A star creates the fundamental elements of life via this process.
What is fusion?
What is Stelledoppie?
These messages were sent into space on probes and will remain the last evidence of our existence long after our demise as a species.
What are the golden records?
This scientist revised and added to James Bradley's measurements and is considered the Father of Astrometry
Who is Friedrich Bessel?
This group on the HR Diagram contains Regulus, Sirius, and our Sun.
What is the Main Sequence?
This phrase correlates to the color of star on the HR Diagram.
Spectral Class
This database assigns every star system a code based on its RA and Dec coordinates.
What is the WDS Catalog?
This language was developed entirely off of math and logic, and was popularized by Carl Sagan in his sci-fi novels.
What is astraglossa?
This man built off of Hipparchus's work and developed a synthesis of astronomy.
Who is Ptolemy?
If below this mass, the star will become a white dwarf according to Chandrasekar Limit.
What are 10 solar masses?
The final stage of our Sun(on the presented evolution chart) is this.
What is a white dwarf?
This database is the most reliable and accurate collection of stars.
What is the Gaia database?
These life forms are known for surviving in extremely salty environments.
What are Acidophiles?
The first successful measurement of Parallax was made on this system.
What is 61 Cygni?