Setting up a meteor observing station by Robert Cobain
Robert Cobain from Bangor runs an automatic meteor observing station from his house and has kindly taken the time to tell us of his observations and his setup. This is…
Dobsonian Refurbishment Project by Martin McKenna
Meade Starfinder 16" F/4.5 Dobsonian RefurbishmentBefore refurbishment... After much thought on the refurbishment of my Dobsonian, I realised that I was wasting time considering different options instead of doing anything…
Red Light Pen – No Longer Available!
What better way to record your observations than with an EAAS red light pen? A black medium point biro pen coupled with a red LED light is the perfect accompaniment…
Performance Improvement For Achromatic Refractors
Anyone who owns a conventional achromatic refractor will be aware of the blue halo surrounding any white or bright object at high powers. Most people will know that this is…
Visual comet hunting – A deeper look by Martin McKenna
Resident comet hunter and EAAS member, Martin McKenna has been observing comets since 1997 and has made it his passion in the field of astronomy. He has clocked up over…
Why observe comets? by Martin McKenna
Resident comet hunter and EAAS member, Martin McKenna has been observing comets since 1997 and has made it his passion in the field of astronomy. He has clocked up over…
Visual Comet Hunting by Martin McKenna
INTRODUCTIONVisual comet hunting is the systematic search for undiscovered comets by the visual amateur observer using the naked eye, binoculars or telescope. It is a way of exploring the entire…
Saturn, The Lord Of The Rings
December 2003On New Years Eve the planet Saturn will be closer to Earth and brighter than at any time in three decades. All month long, everyone can enjoy Saturn at…
Choosing Your First Telescope
Choosing Your First Telescope - A Beginner's Guide by Stevie Beasant & Eamonn KeyesA question which keeps popping up over and over again on the NIAAS forum is "How do…
Astronomy Formulae by Andrew Johnston
IntroductionHere is a set of formulae and numbers that I have always wished was in one place. Now they are. Enjoy.f ratio (or focal ratio) = primary mirror focal length…