Astronomy for Beginners

Here’s where you’ll find observing guides, how-to articles and great astronomy hints and tips. Don’t forget to also check out our comprehensive astronomy dictionary.

Astronomy Dictionary
Quark star

A theoretical type of massive neutron star that is so dense that matter is broken down to its constituent particles. Quarks are the hypothetical constituent particles of subatomic particles, like neutrons.


The brightness of an astronomical body. The lower the number the brighter it is. Magnitudes brighter than 0 are represented with a negative number.

Amp glow

This is the (usually pink/red) glow seen on the edges of some DSLR images caused by infrared radiation from the camera’s amplifier.

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