© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)

M101 is well placed

Sat, 22 Apr 2017 (302 days ago)

Dominic Ford, Editor
From the Deep Sky feed

Please wait
Loading 0/4
Click and drag to rotate
Mouse wheel to zoom in/out
Touch with mouse to dismiss
The sky at

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 but cannot be seen from latitudes much south of 15°S.

From Ashburn (click to change), it will be visible all night. It will become visible at around 21:02 (EST) as the dusk sky fades, 46° above your north-eastern horizon. It will be lost to dawn twilight at around 05:14, 47° 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 position of M101 is as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
M101 14h03m10s +54°21' Ursa Major 7.7 29'00"

The coordinates above are given in J2000.0.

The sky on 22 April 2017
Sunrise 06:22
Sunset 19:52
Twilight ends
Twilight begins

25-day old moon
Age of Moon
25 days

All times shown in EDT.
Rise Culm. Set
Mercury 06:07 12:50 19:32
Venus 04:44 10:53 17:01
Moon 04:19 09:52 15:26
Mars 07:44 14:59 22:14
Jupiter 18:19 00:10 05:57
Saturn 00:09 04:56 09:42


The circumstances of this event were computed using the DE405 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Image credit

© Digitised Sky Survey (DSS); Second Palomar Observatory Sky Survey (POSS-II)




Color scheme