Introduction to Cygnus, one of the Polaris?

This paper introduces the astronomical phenomenon of Cygnus, one of the North Stars. Cygnus is completely immersed in the white Milky Way, standing on both sides of the Milky Way with Aquila and Lyra. The three main stars (alpha star) of these three constellations form a big triangle (summer triangle).

Cygnus Cygnus is one of the Polaris. At 20 o'clock on September 25 every year, the swan constellation rises to the sky. Summer and autumn are the best time to observe Cygnus. Interestingly, the rise and fall of Cygnus is really like a flying swan: it rises obliquely from the northeast to the sky, and when it reaches the zenith, its head points to the west. When it moves to the northwest, it turns head down, tail up and disappears on the horizon.

Celestial Name: Cygnus Latin Name: Cygnus Symbol: Cygnus Right ascension: 20: 30 declination: 44 area: 804 area ranking: No.65438+No.06 bright asterisk: 4 brightest star: Tianjin IV (Cygnus α) 1.2 meteor shower: Cygnus κ meteor shower adjacent constellation: Cepheus, celestial sphere. The apparent magnitude fully visible region of the brightest star between 40: 1.25: 90 n-28 s.

Constellation Introduction The observation features of Cygnus are completely immersed in the vast white galaxy, and stand on both sides of the galaxy together with Lyra and Aquila. The three main stars (α star) of these three constellations form a big triangle (summer triangle). There are 19 1 stars in the constellation with visual magnitude greater than 6, and 22 of them have brightness greater than 4. Therefore, in the summer night sky, although the Milky Way is like a veil and full of stars, it is not difficult to find Cygnus, which can still shine in the Milky Way.

Appearance features The main stars of Cygnus are arranged in a big cross, so it used to be called the "Northern Cross". It's easy to imagine the cross as a swan. The long vertical fork is the swan's long neck, and the horizontal fork is the swan's wings.

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