Paul Boltwood

Paul Boltwood (1943 – September 25, 2017) was a Canadian amateur astronomer. He was engaged in developing hardware and software for deep sky imaging and in research of brightness variations in active galactic nuclei. He was also acknowledged for his studies of near-nucleus activity in Comet Hyakutake.

Early life, personal life and education Paul Boltwood was born in Vancouver, British Columbia in 1943. He first became interested in astronomy around age 12 and had built his own telescope by age 15.

He received a bachelor's degree in mathematics from the University of British Columbia in 1966.

Boltwood died on September 25, 2017, aged 73 or 74, in Stittsville, Ontario. He used the observatory to perform long-term monitoring of several blazars (active galactic nuclei with relativistic jets), including the objects OJ 287 and 3C 66A. His observations were used professional astronomers and he is listed as the co-author of several scientific journal articles. Using 20 hours of exposure time on his 16-inch telescope and custom software to add the resulting 767 images together, Boltwood achieved a limiting magnitude of 24.1, a result comparable with those seen in professional observatories. His photo was featured as the Astronomy Picture of the Day on April 14, 1999.

Awards and recognition In 1995, he was awarded the Chant Medal of the Royal Astronomical Society of Canada. This medal is awarded, not more than once a year, to an amateur astronomer resident in Canada on the basis of the value of the work carried out in astronomy and closely allied fields of the original investigation.

In 2000, he was awarded with the Amateur Achievement Award of the Astronomical Society of the Pacific.

Asteroid 8785 Boltwood was named in his honour.

Selected publications