The Great Square of Pegasus is an asterism formed by three bright stars in Pegasus constellation – Markab, Scheat and Algenib – and Alpheratz in the neighbouring constellation Andromeda. For northern observers, the asterism is particularly prominent in the summer months, when it can be seen high overhead in the evening.
The Great Diamond, or Diamond of Virgo, is a prominent spring asterism formed by the bright stars Cor Caroli in Canes Venatici constellation, Arcturus in Boötes, Spica in Virgo, and Denebola in Leo. The asterism shares the stars Arcturus and Spica with the Spring Triangle, an asterism formed by these two stars with Regulus, the … [Read more…]
The Spring Triangle is a prominent spring asterism formed by the bright stars Arcturus in Boötes constellation, Spica in Virgo, and Regulus in Leo. The asterism can be seen in the southeastern sky from March to May by observers in the northern hemisphere. It shares two stars – Arcturus and Spica – with the larger … [Read more…]
The Winter Hexagon, also known as the Winter Circle, is a prominent winter asterism formed by seven stars prominent in the winter sky. These are Rigel in Orion, Aldebaran in Taurus, Capella in Auriga, Castor and Pollux in Gemini, Procyon in Canis Minor, and Sirius in Canis Major constellation. Sirius and Procyon are also part … [Read more…]
The Winter Triangle, or the Great Southern Triangle, is an asterism formed by three bright stars in three prominent winter constellations. These stars are Betelgeuse in Orion, Procyon in Canis Minor and Sirius in Canis Major constellation. The Winter Triangle is prominent in the night sky in the northern hemisphere during the winter months, from … [Read more…]
Here are some of the highlights of the night sky in July: 10:30 PM, western sky – Saturn and Mars coming near the western horizon 11 PM, southern sky – Scorpius constellation, with the prominent tail and stinger, the red supergiant Antares marking the scorpion’s heart, and the globular cluster Messier 4 (M4) lying in … [Read more…]
The Summer Triangle is one of the most familiar patterns in the northern summer night sky. The three bright stars that mark the vertices of the Summer Triangle are Altair, Deneb, and Vega, the brightest stars in the constellations Aquila, Cygnus, and Lyra. The star pattern makes it easy to locate each of the three … [Read more…]
Here are some of the highlights of the June sky: 9:30 PM – southern sky – Mars and Saturn rise over the horizon 9:30 PM western sky – Jupiter appears above the horizon, sinks lower toward the end of the month 5 AM eastern sky – Venus appearing above the horizon before sunrise; on June … [Read more…]