My Astronomy




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.


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Tuesday 15th July 2014 I rediscover a Dwarf Nova - already discovered in 1998 - that was classified incorrectly as a supernova!

A much better night but still poor seing. I ran a 20 point T Point model and set up two galaxy runs between 18h and 19h RA and19h and 20h RA. Pointing is not bad but I found it necessary to synch the first galaxy in each run into the T Point model.  I have been unable to cool the chip too far because of condensation - the dessicant will be refreshed tomorrow. 


I was checking a galaxy I had imaged (PGC 63176) when I spotted a galaxy (not on my list) that seemed to have a SN possibility. This is the plate solved image that I used with the SkyX to identify the unknown galaxy.

This is the same image with annotation.


It turned out that this object had actually been listed as a supernova SN1998di and was later found to be a dwarf nova in outburst. Here are the details from Dave Bishop's excellent Supernova website. Courtesy of D. Bishop:

More details here


 This extract from IAU Circular 6983 explains it all.

So it is not a supernova but an object in our own Galaxy. A line of sight effect that led to an incorrect identification in 1998 - something to be wary of.

Another "might have been" discovery.

 I need to track down any observations since 1998 to check if it has remained at that brightness, My image was unfiltered - I need to reimage with B and V filters and check its magnitude at the AAVSO.