M101 is well placed

2018 Apr 21

Dominic Ford – originally published on In-The-Sky.org

The pinwheel galaxy (M101, NGC 5457) will be well placed for observation. It will reach its highest point in the sky at around midnight local time.

At a declination of +54°21', it is easiest to see from the northern hemisphere and cannot be seen from latitudes much south of 15°S.

From London (click to change), it will be visible all night because it is circumpolar. It will be highest in the sky at 01:03, 87° above your northern horizon. At dusk, it will become visible at around 21:40 (BST), 60° above your north-eastern horizon. It will be lost to dawn twilight at around 04:19, 61° above your north-western horizon.

At magnitude 7.7, M101 is quite faint, and certainly not visible to the naked eye, but can be viewed through a pair of binoculars or small telescope.

The precise position of M101 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
M101 14h03m10s +54°21' Ursa Major 7.7 0'26"

The coordinates above are given in J2000.0.

The details of this observing event were provided courtesy of In-The-Sky.org