Check out Messier 81 this April – Astronomy Now

The union of Bodes Galaxy (Messier 81) and Messier 82 can be seen about 15 degrees north-west of Ursa Major’s famous asterism ‘Plow’.

By the time: all night during the month

What is special: Messier 81 (NGC 3031) in Ursa Major is one of the most beautiful stars in the entire universe. Aside from the M31 and M33 internal combination wheels, it’s the brightest galaxy on Messier’s list, shining with a magnitude of +6.8, making it easy to get the binoculars down. Bode’s Galaxy, according to the German astronomer Johann Elert Bode, is only about 12 million light -years away, so it is 27 × 14 minutes long. arc in its full width.

If these good intentions weren’t enough, the departure of Messier 82, a close ally and talking edgeon stationed above half a degree to the north, would make the much -sought -after film in the world. the whole air.

How to check: The M81 is easy to find but hard to find. You can use the two stars that make up the ‘pan’ of Plow, Phad (gamma [γ] Ursae Majoris), which marks the south-east corner (south-south) and Dubhe (alpha [α] Ursae Majoris), the brightest star of the Plow, in the northwest. Imagine a diagonal line drawn from Phad to Dubhe and extending the same distance from Dubhe, and you should land near M81.

As is common with all spiral staircases shown to us in close or full face, low brightness can encourage the M81 to see in the open air or in dark conditions. Under ideal conditions on a non-moonlit night, a telescope in the range of 75–100mm (~ three to four-inches) works with low power at the center of the surrounding galaxy. of an oval shape. The M82 can be seen almost like a pencil and is given a condensed source at high power. You’ll need a light grip of a 400mm (16-inch) telescope, perhaps, working with low power, to start exploring the small and lightweight arms of the M81.

On the evening of April, the M81 ended up as dark as darkness, laying on top. From the UK beaches, it is circumpolar (not set) and shows up at a good height during the dark hours.

M81 and M82 are strongly intertwined, M81 is ten times more likely to trigger strong star formation events on M82. There is evidence of the formation of stars on M81, after meeting about 300 million years ago. M81 was in the news more than 25 years ago with the immediate appearance of the 1993J supernova, which rose to a magnitude of +10.5.

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