Simple Astronomy Terms and Jargons

Simple Astronomy Terms and Jargons

Okay so you have become adept at handling a binocular now have you? Well what about astronomy jargons? Got stumped with a few already? Here’s a quick guide to terms that really do mean how they sound!

Red Giants

Yup, any start that is red in color and huge automatically is called a Red Giant. This is actually a phase in the life of a star and every star eventually passes through it.

White Dwarfs

Again another phase in the life of a star. This phase is the last stage for most stars, when they eventually die. However, do not confuse this term with dwarf stars (Our Sun is one such star). Dwarf stars on the other hand are very much alive and buring hydrogen for fuel.

Black Holes

So a hole that cannot be seen and thus appears black like space is called a Black Hole. But this hole is a gravitational hole that sucks in anything and everything that has the misfortune of falling inside. Even light does not escape its grasp and that is why the celestial entity has no visible or invisible image associated with it. All you can track is the effect a Black Hole has on its surrounding stars, planet systems, gas nebulas and more.

Big Bang

A very technical term that describes the events at the start of the Universe. A massive explosion that time never again produced rocked the early Universe and thus began the frenzy that we see today. This event is estimated to have occurred nearly 15 gigayears back! That’s like 15000000000 years ago.

Missing Mass

Yup there is stuff missing in the universe. Mass that is supposed to be there by all calculations and probably is. Problem is we can’t seem to see it or find it. We are still on the lookout though!

Star Clusters

As the name suggests, a cluster of stars moving together through a galaxy and bound together due to their collective gravity. Depending on the density or count of stars in such clusters they can be low density or open clusters and high density or globular clusters.

Star Formations

No this is no air combat formation. It simply is how stars line up in the night sky. Often used to quickly track the position and thus setup your telescope.


Even our Sun gets pimples from time to time! These visible spots on the sun’s surface form because the gas in the region is colder than anywhere else on the Sun’s surface because the area just ejected magnetic storms or matter into space.

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