Collection Astronomy & Constellations 2026.07.20

A Collection of Good Constellations and Astronomical Phenomena to Observe in June 2026

From simultaneous observation of Venus, Jupiter, Mercury, and the Moon to the Summer Triangle, Hercules Cluster, and Scorpius — a June observation guide

#Constellations #Celestial Observation #Astronomical Phenomena #June 2026 #Summer Night Sky

June 2026 marks a time when summer constellations rise prominently, and the evening sky offers a view of bright planets and the Moon, making it an enjoyable time for beginners to explore the night sky. The Korea Astronomy and Space Science Institute announced that from the evening of June 16th to around 8:30 PM on June 18th, Venus, Jupiter, Mercury, and the Moon can be seen together. Additionally, with the Summer Triangle rising in the eastern sky, the Scorpius constellation in the low southern sky, and the Hercules globular cluster and Ring Nebula, June offers richer observations than one might expect. This list organizes targets that are good to reference when planning observations in Korea for June 2026.

Simultaneous Observation of Venus, Jupiter, Mercury, and the Moon from June 16-18, 2026

The most popularly recommended scene for observation in June 2026 is when Venus, Jupiter, Mercury, and the Moon appear together in the evening sky. Venus and Jupiter are bright and relatively easy for beginners to find, and having the Moon nearby provides a reference point to identify the planets. However, Mercury often appears at low altitudes near the Sun, so it's best to find a location where the western horizon isn't blocked by buildings or mountains. The time just after sunset but before complete darkness is crucial, so it's advisable to scout your observation location in advance.

관측 시기 2026년 6월 16일 저녁~18일 20시 30분 무렵 관측 방향 해 진 뒤 서쪽 하늘 중심 난이도 맨눈 관측 가능

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Summer Triangle in June

The Summer Triangle in June

The Summer Triangle is not a constellation, but it is the best guide for finding the summer night sky after June. Start by locating the brightest star, Vega, and then find Deneb and Altair below it to form a large triangle, which helps identify the positions of Lyra, Cygnus, and Aquila. These three stars are relatively visible even in urban areas, making it good for beginners. Using this triangle as a reference, expanding into the Milky Way and the Ring Nebula in Cygnus will make summer observations considerably easier.

관측 시기 2026년 6월 밤 10시 전후부터 동쪽 하늘 관측 방향 동쪽~동북쪽 하늘 난이도 맨눈 관측 쉬움

Scorpius and Antares in June

Scorpius is the representative constellation of the southern summer sky. In Korea, it is visible in the low southern sky, so it may be partially obscured in areas with many buildings or mountains. The red-tinted Antares serves as an excellent reference point, and if the weather is clear and the southern view is wide, you could even visualize the curved tail of Scorpius. The area around Scorpius is close to the center of the Milky Way, allowing for a richer star field to be seen through binoculars in darker locations.

관측 시기 2026년 6월 밤 남쪽 하늘 관측 방향 남쪽 낮은 하늘 난이도 남쪽 시야가 트인 곳 권장

Hercules Globular Cluster M13

M13 is a prominent globular cluster in the Northern Hemisphere's summer sky. It can be difficult to find with the naked eye, but if you use binoculars or a small telescope from the trapezium area of Hercules, it will appear as a fuzzy ball of stars. It may not be very visible in the midst of the city due to light pollution, so suburban or mountainous observation sites are more favorable. Even if the stars do not appear densely packed like in photos at first, the experience of discovering a globular cluster containing hundreds of thousands of stars is still a compelling observation target.

관측 시기 2026년 6월 밤 10시 이후 추천 장비 쌍안경 또는 작은 망원경 난이도 도시 외곽 어두운 하늘 권장

Ring Nebula M57 in Lyra

The M57 Ring Nebula is a classic deep-sky target in Lyra. In photographs, it appears as a beautiful donut shape, but through a small telescope, it may look like a small, faint gray ring. It's good to find Vega first and become familiar with the small parallelogram of Lyra before narrowing down the location for a challenge. The success rate of observations is higher on nights with less moonlight and good transparency compared to nights with a bright moon.

관측 시기 2026년 6월 밤 늦은 시간부터 추천 장비 망원경 권장 난이도 초보자에게는 위치 찾기 연습 필요

Moon Observation in Early June Evenings

Observing the Moon in Early June Evenings

The Moon is one of the easiest objects to observe and changes its appearance every day, making it a wonderful target. During the time the Moon is visible in the evening sky after mid-June, you can feel the contrast of craters and maria using just binoculars. The closer it is to full moon, the brighter it will be; however, many people find that the surface's three-dimensionality is more apparent around the first and last quarters. If you're observing with a child or are using a telescope for the first time, starting with the Moon is the most stable choice.

관측 시기 2026년 6월 중순 이후 저녁 추천 장비 맨눈, 쌍안경, 작은 망원경 난이도 초보자 추천

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In June, since the sun sets later, summer constellations are better visible after 9 PM rather than too early in the evening. For the planetary and lunar close encounters, it is important to find a place with an open western sky. Clusters and nebulae are best observed in dark skies away from city lights. The possibility of observation can vary depending on weather conditions, fine dust, and cloud cover, so check the weather forecast and moon brightness before heading out. If you're a beginner, it's recommended to first familiarize yourself with the positions of bright stars and planets with the naked eye, then use binoculars to find clusters and nebulae for a much more immersive experience of the June night sky.

한눈에 보기 6개

Simultaneous Observation of Venus, Jupiter, Mercury, and the Moon from June 16-18, 2026

2026년 6월 16일 저녁~18일 20시 30분 무렵 · 해 진 뒤 서쪽 하늘 중심 · 맨눈 관측 가능

Summer Triangle in June

2026년 6월 밤 10시 전후부터 동쪽 하늘 · 동쪽~동북쪽 하늘 · 맨눈 관측 쉬움

Scorpius and Antares in June

2026년 6월 밤 남쪽 하늘 · 남쪽 낮은 하늘 · 남쪽 시야가 트인 곳 권장

Hercules Globular Cluster M13

2026년 6월 밤 10시 이후 · 쌍안경 또는 작은 망원경 · 도시 외곽 어두운 하늘 권장

Ring Nebula M57 in Lyra

2026년 6월 밤 늦은 시간부터 · 망원경 권장 · 초보자에게는 위치 찾기 연습 필요

Moon Observation in Early June Evenings