The 2025 planetary alignment - everything you need to know

The night sky in January 2025 offers an impressive astronomical phenomenon: an extraordinary planetary alignment. This spectacular spectacle, in which six planets are visible almost in a perfect line, is an opportunity not to be missed. Later in February, Mercury will join this celestial parade, bringing the total to seven visible planets. This phenomenon promises a unique experience for novice and experienced stargazers alike. Find out how to make the most of this special event, with or without a telescope.

What is a planetary alignment?

A planetary alignment, also called a ‘planet parade,’ occurs when several planets are visible in the same region of the sky from Earth's perspective. Although the planets do not align exactly in reality, they appear to do so from Earth's perspective. This is because the planets in our solar system orbit the sun in roughly the same plane, known as the ecliptic plane. When their positions along this plane coincide, we speak of a planetary alignment. It is important to note that such alignments are visual phenomena and that the planets are still vast distances apart in space.

Did you know that Uranus and Neptune are only visible with a telescope? At telescope.com you'll find everything you need to discover these mysterious planets for yourself.

Which planets are visible?

During the January 2025 alignment, the following six planets will be visible:

• Venus: Known as the ‘Evening Star,’ Venus is the brightest planet in the sky and easily seen with the naked eye.
• Mars: Mars' characteristic reddish glow makes this planet easy to spot without tools.
• Jupiter: One of the largest planets in our solar system, Jupiter shines brightly and is also visible to the naked eye.
• Saturn: Although slightly less bright than Venus and Jupiter, Saturn can be seen without a telescope in good conditions.
• Uranus: This planet is at the limit of visibility with the naked eye and under ideal dark conditions does not require a telescope, but with the Celestron well.
• Neptune: Because of its distance and dim brightness, Neptune is visible only using a telescope such as the StarSense.

Later, by the end of February 2025, Mercury will also join this alignment, making seven planets visible in the sky at the same time.

Where and when can you see the planetary alignment?

The best time to observe this planetary alignment is from Jan. 21, 2025, just after sunset. During this evening, the planets will stretch across the sky from the western to eastern horizon. Venus and Saturn will be low on the western horizon, while Mars will be visible to the east. Jupiter will be high in the sky, and Uranus and Neptune will be in between these positions. It is recommended to choose a location with a clear view of the horizon and minimal light pollution for optimal observation. Use of astronomical apps such as www.theskylive.com/planetarium can help identify the exact positions of the planets. The convenient thing is that you don't need an app at all, The SkyLive uses your location and with that you can identify all the planets very easily!

Planetary alignment February

In February 2025, the celestial show will become even more spectacular when Mercury joins the existing six planets. This increases the total to seven visible planets in the night sky. Mercury is one of the most challenging planets to spot because of its proximity to the sun, but during this period it is relatively easy to observe shortly after sunset.

When is Mercury visible?

• Early February: Mercury appears low on the western horizon immediately after sunset.
• Mid-February: Mercury reaches its greatest eastern elongation, which means it appears farthest from the sun and is most visible.
• Late February: Although Mercury is slowly moving closer to the sun again, it will remain visible until about 7 p.m. on a clear day.

Tips for observing Mercury

• Use binoculars or StellarVision telescope: This makes it easier to distinguish Mercury from the sun's glow.
• Choose a low horizon: Find a location with a clear view of the western horizon without obstacles such as trees or buildings.
• Plan your observation: Use a browser app such as The SkyLive, as mentioned above, to determine Mercury's exact location and timing.

With the addition of Mercury, February will be one of the most memorable months of 2025 for astronomers and night sky enthusiasts. Make sure you don't miss this unique opportunity!

Are the planets really aligned?

Although from our perspective it may appear that the planets are aligned, in reality this is not the case. The orbits of the planets lie in different planes and at different distances from the sun, making perfect alignment in three dimensions extremely rare. In fact, it occurs only once every 396 million years. Moreover, the planets move at different speeds and orbits, meaning they rarely align, even from the Sun's perspective. The phenomenon we observe is the result of planetary orbits, which from our perspective on Earth appear to coincide along the same line in the sky.

How can you observe the planets?

• With the naked eye: Venus, Mars, Jupiter and Saturn are bright enough to see without aids. However, it is important to choose a dark location, away from city lights, to clearly distinguish the planets.
• With binoculars: A good pair of binoculars can help you spot Uranus and see more details of the other planets. Make sure you have a stable surface or use a tripod for a stable image.
• With a telescope: Observing Neptune requires a telescope. In addition, a telescope offers the opportunity to view details such as the rings of Saturn or the moons of Jupiter. At telescope.com you will find a wide range of telescopes suitable for both beginners and advanced users.

Tips for an optimal stargazing experience

• Choose a dark location: Avoid areas of high light pollution for best visibility.
• Be on time: Start your observation just after sunset to see all the planets before they disappear below the horizon.
• Use technology: Apps like Sky Tonight can help you identify planets and other celestial bodies.
• Dress warmly: January and February evenings can be cold; make sure you have plenty of warm clothing.

Which telescope do we recommend?

Our recommendation of the month for the planet lover is the Starsense Explorer from Celestron. With the handy app and included eyepieces, you can soon admire the planets in detail. Find out more....

Conclusion

The January-February 2025 planetary alignment is an exceptional event that offers stunning views of our solar system. Whether you are a seasoned astronomer or simply interested in the night sky, this unique opportunity to see seven planets is not to be missed. Plan your observation, prepare and enjoy the magic of the universe.