This article was originally published in the September 2011 issue of UFO Magazine, the award-winning Australian publication that covers science and technology and offers readers access to the best in Australian UFO research.

A close-up of a Ufo on radar.

Photo: Rohan MacGregor, via Facebook.

The article includes some useful tips on spotting UFOs on radar, including:Don’t be afraid to get out your phone to scan the sky.

A good radar detector will have a built-in night-vision capability.

Some of the best radar detector on the market.

Photo credit: Rishi Chaturvedi, via Flickr.

Use a camera to find the UFO.

Photo courtesy of KKF.

A closeup of an alien spaceship on radar:  Photo: Shutterstock.

A radar image of a UFO is actually an image from a camera.

Photo via Wikimedia Commons.

What you should know about UFOs.

Photo by Flickr user daniela.

In general, a UFO will be a bright red object, and if it’s flying it’s a flying saucer.

The image below shows an unidentified object in the sky, near a city in the United States.

The object is hovering.

The image was taken on September 30, 2017, by the NASA/ESA Low-Earth Orbit Camera (LEOCOM) in the mid-Atlantic Ocean.

The red light indicates the light from the star.

Photo by NASA/L.

Grigorik, via Wikimedia.

The object’s shape, color and shape of its body is very important, according to the National UFO Reporting Center (NUFORC).

The shape of an object is determined by what is called the “halo” around the object.

This is a circle, or ellipse, that can be divided into several smaller sections, the “ring” or “basket” of different sizes.

This shape of the object is what determines its brightness.

A bright object will be very bright, while a dark object will have much lower brightness.

The shape and size of an UFO are determined by the shape of what is known as the “dome” (a circle) around the UFO and the shape and diameter of the circular dome (a triangle).

This shape is also known as “sphere shape” or simply “diameter”.

When the dome is formed, the object will appear very close to the plane of the sky; when it’s not, it’ll be far away from it.

A large object will look like it’s about a kilometer across or larger.

A small object will not appear to be large at all, but it will be far from the plane.

An unidentified flying object in Australia, Australia, on September 20, 2017.

Photo taken by NASA’s NUFORB.

The above photo of a white disk with three dots (two in the center and one on the bottom) is an object known as a pulsar, a super-dense, red dwarf star that is located about 3,200 light-years from Earth.

This pulsar was observed on September 10, 2017 by the Laser Interferometer Gravitational-Wave Observatory (LIGO) in a telescope in Chile.

The disk appears bright because the pulsar is rotating.

Photo: NASA/C.

Wootton, via Wikipedia.

If you can’t spot a flying object on radar from the ground, use a telescope.

The Unexplained Strange Phenomenon: UFOs, UFOs, and the Search for Extraterrestrial Intelligence is published by Oxford University Press.