... М44 < М45 > М46 ...

Open star cluster and reflective nebula M45

Open star cluster and reflective nebula M45 or Pleiades is in the constellation Taurus (Tau).

Equatorial coordinates (epoch J2000):
Ra (α):03^h47.0^m, Dec (δ):+24° 07'

Visual magnitude: 1.6^m - this object can be seen with the naked eye.
Distance from the star clusters M45 to the Sun is 425 light years
Angular size: 2°
Class: I,3,m
External dimensions the star clusters M45 are about 15 light years.
Number of stars: 332
Age of the object M45 is 100x10⁶ years

The designation M45 in other catalogs: Mel 22

Optimum magnification for a telescope with observations of M45, depending on the aperture of the telescope (D), is about 10x-20x. Higher magnifications of course add details, but lead to a strong drop in the brightness of the image, making it difficult to observe.

The best month for observing M45 is December. At this time, the object is at midnight near its highest point in the sky, that is, it is less affected by light from the lanterns and atmospheric distortions.

Reflection Nebula Parameters M45

or Pleiades

Equatorial coordinates (epoch J2000):
Ra (α):03^h46.0^m, Dec (δ):+23° 46'

Angular size: 30' × 30'

Discoverer: Ernst Wilhelm Leberecht Tempel, 19.10.1859 year.

The designation M45 in other catalogs: NGC 1435

The best month for observing M45 is December. At this time, the object is at midnight near its highest point in the sky, that is, it is less affected by light from the lanterns and atmospheric distortions.

Мessier 44

Мessier 46

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