Welcome to Celestial Sphere! This is my site/blog about my astronomical pursuits!
I’m a Finnish amateur astronomer, astro junkie and skywatcher living in Ulvila
, Finland. I’m interested almost everything between the Earth’s Troposphere and the objects of the deep space.
As an amateur astronomer, I’m solely a visual observer. I’m interested in all kinds of astronomical phenomena and objects, but currently I’m focusing on visual variable star- and deep sky observing. Besides this, I may still occasionally observe some rare and exceptional atmospheric phenomena, and I also try to observe all eclipses and transits that are observable in Finland.
I’m also a member in several astronomical associations and organizations, which currently are as follows:
- Ursa Astronomical association, Finland (member since 1995)
- Editor in chief of Zeniitti -online amateur astronomy magazine
- Director of Deep sky -interest group within Ursa
- Director of the Atmospheric optics -interest group within Ursa
- Porin Karhunvartijat (a local astronomy club in city of Pori, Western Finland, member since 1998)
- President of the club
- AAVSO (member since 2015)
- BAA (member since 2015)
On this site you can find posts about my observations and association activities, that I have been engaged in. On this site, you can also find information about my observing instruments, observing sites and you can also have a look at my astronomical sketch galleries.
Hopefully I can share some experiences and tips for you, that could be interesting and beneficial for other observers!
- All observations made by Juha Ojanperä, unless stated otherwise
- Copyright of all photos and sketches © Juha Ojanperä, unless stated otherwise.
- All observations presented on this blog have been made in Finland, unless stated otherwise.
I hope you enjoy your visit here on my site!