With the increasing number of objects in the sky – from commercial aircraft to satellites and the growing presence of drones – identifying what you’re seeing can be challenging. Reports of unidentified aerial phenomena continue to surface globally, as evidenced by recent observations in the United States and elsewhere, but many are ultimately explainable. This article, originally published by MGR Online, provides a guide, developed by experts at the National Astronomical Research Institute of Thailand, to help distinguish between common aerial sights and avoid misidentification.
The increasing presence of drones in our skies is prompting more frequent questions about identifying what we’re actually seeing – are those lights stars, satellites, airplanes, or unmanned aerial vehicles? As drone technology becomes more integrated into daily life globally, awareness of aerial objects is also growing. Recent instances in the United States, like the reports of unexplained objects over New Jersey and surrounding areas, demonstrate a heightened public sensitivity, though many sightings ultimately proved to be misidentified familiar phenomena.
Dr. Matipol Tangmatitam, an academic at the National Astronomical Research Institute of Thailand (NARIT), has outlined methods for observing lights and objects in the sky to accurately identify them and avoid confusion.
Planets, Stars, and Lights: Often, the most puzzling objects in the night sky have surprisingly simple explanations. A common mistake is confusing steady light sources like planets, stars, or even streetlights. This can happen because our eyes naturally scan, and without nearby reference points, a stationary light can *appear* to move like a drone. Camera shake or improper settings can also distort light, making it seem brighter or flicker. Venus is a particularly frequent source of confusion, often mistaken for an unusual object or even a drone when it’s bright and visible near the horizon. Constellations are also often misidentified. Learning to recognize prominent constellations using star charts can help.
How to Observe: Look for a steady light source that doesn’t move relative to objects on the ground. For stars within constellations, cross-reference with star charts or astronomy apps to confirm their position and arrangement.
Satellites: Satellites typically appear as relatively steady lights moving slowly in one direction, reflecting sunlight. They are best observed shortly after sunset or before sunrise while still in sunlight. Solar panels can occasionally reflect light at an angle, creating a brief flash before dimming. As they enter Earth’s shadow, the light fades, sometimes turning reddish before disappearing. Most satellites aren’t very bright, but larger ones like the International Space Station (ISS) or the Tiangong space station can be quite noticeable, potentially causing alarm for those unfamiliar with their appearance.
How to Observe: Look for a steady light moving slowly, but faster than an airplane, in a straight line.
Meteors: Meteors, often called shooting stars, are caused by rocks, meteoroids, or even human-made objects burning up as they enter Earth’s atmosphere. Approximately 17 larger meteoroids reach the Earth’s surface each day, but most burn up completely. Visible meteors are far more common, ranging from a few per hour to hundreds during meteor showers. They move quickly across the sky in a straight line, typically lasting only a fraction of a second, though brighter meteors can create fireballs lasting several seconds.
How to Observe: A bright flash that quickly streaks across the sky, lasting only a fraction of a second to a few seconds.
Airplanes: Airplanes are often mistaken for drones. A simple way to identify an airplane is to look for flashing lights. However, if an airplane is flying directly towards an observer, the headlights can obscure the flashing lights, making identification difficult. All commercial aircraft are equipped with standard navigation lights: green on the right wing, red on the left, and white at the rear. These lights are spaced apart, but can appear as a single point from a distance. Observing a consistent and predictable flight path is another clue, especially near airports where planes follow runways and wind direction. For the most accurate identification, use flight tracking apps like Flightradar24 to verify the aircraft’s position and flight information in real-time.
How to Observe: Flashing lights, slow and steady movement, and predictable direction. Verify with apps like Flightradar24.
Drones: Drones typically have green, red, and white lights, similar to airplanes, but the lights are clustered closer together, appearing as a single, concentrated point of light, especially from a distance. A key difference is a drone’s ability to maneuver freely, changing direction abruptly and unpredictably – unlike airplanes. If close enough, you may notice jerky movements, rapid turns, and the sound of propellers.
How to Observe: Four lights clustered together, often green and red, erratic or unpredictable movement, and potentially the sound of propellers.
Other objects can also be misidentified, such as sky lanterns, which rise slowly with a reddish-orange glow from the flame, and fireworks, which create bright, colorful explosions with smoke and sound. These phenomena are all explainable through physics and human activity, and can lead to misinterpretations if not observed carefully. The increasing sophistication of aerial technology underscores the need for public awareness and accurate identification skills.
