Paul Money

Deep-Sky Companions: The Messier Objects by Stephen James O'Meara

Go Stargazing            

Lincoln Astronomical Society

Illustrated Deep-Sky Observing Guide

North Lincs Astro Society

Larry McNish's Messier.  Marathon Planner

Cleethorpes and District

   Astronomical Society

https://webbtelescope.org

societyforthehistoryofastronomy

marsmobile.jpl.nasa.gov

Northern Optics

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https://www.nasa.gov/mission_pages/hubble/main/index.html

                                Messier Objects:

Guide to the Bright   Galaxies, Nebulae and Clusters                      Listed in the Messier Catalogue

      Astronomy Software

http://stellarium.org

https://play.google.com/store/apps/details?id=com.google.android.stardroid&hl=en_GB

    Moon Globe HD App  d376000038

        FOR  IOS  DEVICES  ONLY

https://play.google.com/store/apps/details?id=com.t11.skyviewfree&hl=en_GB