My astronomy began about 1960 and by 1965 I was observing variable stars visually. Attempts to monitor flare stars that way led to a project which saw a joint Auckland Observatory-University of Auckland project to build and use a photoelectric photometer. Commissioned in 1968, this was used until 1990 in a wide variety of projects, but mainly CVs and LPVs which are the stars I'm most interested in. Until the mid 1980s we carried out the most effective photometry, to the faintest magnitudes, in New Zealand from the centre of NZ's largest city!
I collaborated with Brian Marino and others in these projects, resulting in a good number of largely observational papers. Many highlights, but perhaps the best was the making of the first UBV measures of SN1987A and detemining from the colour changes on the second night that it was, indeed, a supernova.
A Chartered Accountant by profession, I'm also a member of the Auckland & Northland Astronomical Societies, Royal Astronomical Society, a fellow of the RASNZ and a member of Photometry, Variable Stars and Close Binary Commissions of the International Astronomical Union since 1970. My observing these days is limited. My observatory is located at Waiharara (34.97S, 173.2E, 30M ASL) above the farm office.
Here are links to articles I have written on this website.
|22/11/2014 18:07:52||Cepheids & DSLR|
|26/10/2014 01:06:57||Four Decades of Cataclysmic Variables|
|08/08/2014 19:49:37||Measuring the Stars|
|17/05/2013 21:02:31||Walker (2014), Dual Maxima Miras|
|31/03/2013 23:18:53||V1369 Centauri - A Southern Nova Project|
|04/12/2011 01:43:49||Where Most of It Began: Auckland Observatory|
|03/12/2011 04:27:19||AAVSO Centennial Conference Poster Paper: RASNZ Photometry Section|
|21/08/2011 06:30:28||Bright Southern Cepheids for DSLR & Similar Cameras|
|21/08/2011 05:57:47||9. Camera Response and Extinction|
|21/08/2011 05:56:12||6. Ensemble Photometry|
|03/07/2010 01:13:33||Pulsating Variables & VSS|
|03/07/2010 01:12:05||Visual Measures of Bright Cepheids|
|03/07/2010 01:09:26||QZ Carinae|
|03/07/2010 01:08:34||Dual-Maxima Miras|
|23/05/2010 14:00:00||EX Hydrae Outburst|