My Astronomy

Latest History of Astronomy Weekly 

Latest ANS Weekly

 


My New Book May 2018My previous e-book
 

ABOUT THE WEBSITE - CLICK HERE

My Telescopes

My Main Telescope - C14 and Paramount ME

My new Paramount MyT and 8-inch Ritchey-Chretien Telescope

MyT Hand Controller

My Meade 12 inch SCT on a CGEM (Classic) Mount

My 4 inch Meade Refractor with Sky Watcher Guidescope and ZWO camera on a CGEM (Classic) Mount

Skywatcher Star Adventurer Mount with Canon 40D

 

My Solar setup using a DSLR and Mylar Filter on my ETX90

DSLR attached to ETX90. LiveView image of 2015 partial eclipse on Canon 40D

Astronomy Blog Index
About the Site

 I try to log my observing and related activities in a regular blog - sometimes there will be a delay but I usually catch up. An index of all my blogs is on the main menu at the top of the page with daily, weekly or monthly views. My Twitter feed is below. I am also interested in photograping wildlife when I can and there is a menu option above to look at some of my images. I try to keep the news feeds from relevant astronomical sources up to date and you will need to scroll down to find these.

The Celestron 14 is mounted on a Paramount ME that I have been using for about 10 years now - you can see that it is mounted on a tripod so is a portable set up. I still manage to transport it on my own and set it all up even though I have just turned 70! It will run for hours centering galaxies in the 12 minute field even when tripod mounted.

 

My Recent Tweets
« Scrapyard Scope | Main | Read my latest amateur night sky weekly online newspaper »
Wednesday
Nov012017

My latest image of C/2017 O1 (ASASSN)

C/2017 O1 (ASASSN) continues its upward progress through Camelopardalis. A number of faint galaxies were captured in the image. Note that Local Spanish Time is given.The insets show the comparisons of the comet's position and image fields of view. 

PGC 2707769 has a magnitude of 18.76

PGC 2706432 has a magnitude of 17.62

PGC 2700133 has a magnitude of 16.69

PGC 213302 has a magnitude of 16.41

PGC 16349 has a magnitude of 16.27

 

Charts Courtesy of Software Bisque 

Telescope Optics

OTA: Planewave 17" CDK 
Optical Design: Corrected Dall-Kirkham Astrograph 
Aperture: 431mm
Focal Length: 1940mm (0.66 Focal Reducer)
F/Ratio: f/4.5 
Guiding: Active Guiding Disabled 
Mount: Planewave Ascension 200HR