British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Community

21P in One Second


Expand image

About this observation
Len Adam
Time of observation
05/09/2018 - 05:16
21P Giacobini-Zinner
Observing location
Just outside Albox, Almeria , Spain
8-inch Ritchey -Chretien
0.8 X focal reducer
Paramount MyT
1 second

I am always surprised with the sensitivity of my old SBIG ST9XE camera and was pleased to be able to obtain this image of 21P this morning with a one second exposure(I do have some longer exposures). I was also pleased that the clear nights are back (hopefully) here in Spain. The images I took this morning required little effort. My alarm had been set for 4 a.m. to be able to catch the comet - although I imaged quite a few other objects. This morning was a first for really using my 'remote' observatory (about 50 yards away from my bedroom). The first thing I do is switch on the power to the RING camera in the observatory and my old mobile phone that wirelessly receives the image of the inside of the 'shed'. I then switch on the main power and open the roof with the switch next to my bed  - all viewed on the phone. I have a long powered USB cable to the shed which connects my Macbook to the MyT, camera, filter wheel etc.  I start the telescope and home it , slew to the object and then I can start imaging(although I do switch off the RING security camera as it responds to movement and switches on a light when the telescope moves!). I finished imaging then reversed the process - all from the desk next to my bed. (I did go out with my binoculars to spot 21P next to the kids in Auriga for a minute but the door to the observatory remained locked.) When you get to the age of 73 you begin to appreciate not crawling around the floor of an observatory and avoiding the mosquitos!

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.