Sagittarius is best observed from July to August in the southern sky, marked by a “teapot” shape of stars near the summer Milky Way. In mythology, Sagittarius represents Chiron, a wise centaur and teacher, depicted drawing his bow as a constellation.

Best seen from June to August, particularly in July, in the low southern sky. Its bright red star “Antares” marks the scorpion’s heart, with a curved line of stars forming its tail. In mythology, the scorpion killed the hunter Orion, and they now chase each other across the sky.

Libra is best observed from June to July in the southern sky, with its distinctive shape resembling a square or diamond. Although it lacks bright stars, it can be found using Antares in the nearby Scorpius as a guide. In mythology, it represents the scales held by Astraea, the goddess of justice.

Leo is best observed from February to April, especially high in the southeastern to southern sky in March and April. Its distinct “backwards question mark” or “sickle” shape is marked by the bright star “Regulus,” which represents the lion’s heart. In Greek mythology, Leo represents the Nemean Lion, a powerful beast defeated by the hero Heracles during his Twelve Labors.

Virgo is best observed from April to June, appearing in the southeastern to southern sky. The bright star "Spica" serves as a key marker, and it's easier to find by tracing a line from the Big Dipper. In mythology, Virgo is associated with the goddess of harvest, Demeter, and her daughter Persephone, symbolizing the cycle of seasons as Persephone moves between the underworld and the Earth.

Polaris is actually a triple star system, with three stars bound together by gravity. You can easily find it by extending a line through the two stars at the end of the Big Dipper's handle.

In Japan, the Harvest Moon is called “Chūshū no Meigetsu,” or the “Mid-Autumn Moon.” It’s the most beautiful full moon of the year, typically seen in September.

Observing the sun is both important and fascinating. It’s essential to use special filters or telescopes and never look at it directly. The best times for solar observation are on clear days in the spring or autumn when the air is crisp. You can see interesting features like sunspots and prominences during these periods.

The Andromeda Galaxy is easy to observe in the Northern Hemisphere during the fall and winter months, with October and November being especially ideal. New moon nights, when there’s little moonlight, provide the best viewing opportunities. Located to the northeast of the constellation Pegasus, it can sometimes be seen with the naked eye, but binoculars or a small telescope offer a much clearer view.

Also called a shooting star

Meteors can be observed with the naked eye, but they are especially numerous during meteor showers.

They emit light as they enter the atmosphere and are visible as streaks of light. They are very small, usually a few millimeters to a few centimeters in size.

A telescope with medium magnification is suitable for observing craters and mountain ranges on the Moon.
The same side always faces the earth due to the phenomenon of synchronous rotation.

1 day: 27.3 days
1 year: 27.3 days “lunar year”

Pluto is very distant, making it difficult to observe with ground-based telescopes. The most notable feature is the heart-shaped region known as ‘Tombaugh Regio’.

1 day: 6.4 days
1 year: 90,582 days

It is not visible to the naked eye, so use a telescope.
Especially in July and August, it appears faintly just above the horizon before dawn.

1 day: 0.67 days
1 year: 60,225 days

One of the brightest planets observable with the naked eye. It is a fascinating planet with huge rings and many moons, and each observation reveals something new.

1 day: 0.44 days
1 year: 10,759 days

Very dark and difficult to spot with the naked eye, binoculars are used. Its blue-green color makes it easy to distinguish from other stars.

1 day: 0.7183 days
1 year: 30,708 days

Observation through a telescope is common. The moment when Jupiter is on the opposite side of the Sun from the Earth is a particularly good opportunity to see it brightly.

1 day: 0.414 days
1 Year: 4,329.85 days

"Mars Close Approach" is a good time to observe!
They appears particularly bright and large and can be observed with the naked eye.

1 day: 1.02708 days
1 year: 687 days

A very bright star. The best time to observe it is in the western sky at dusk or in the eastern sky at dawn, when the sky is dim. The surface is covered by thick clouds.

1 day: 243 days
1 year: 224.7 days

The star is so close to the Sun that it is difficult to observe from Earth. The only chance is for a short time just before sunrise and just after sunset.

1 day: 176 days
1 year: 88 days