Sidereal Year

Posted by Alfredo J. Martiz J. (Panama City, Panama) on 20 January 2008 in Abstract & Conceptual.

This is the 365th photo posted in this photoblog, that means I have been posting photos for 365 days of my life.
It has been a fantastic experience during this year, everyday spending sometime of the day to navigate through the catalog or taking some photos during the day, and then deciding what to post; processing the photo, doing some research in some cases, selecting a title and writing.
It has not been easy to keep the pace, and that makes it a challenge itself, it also forces you to find new things, learn, observe more, enjoy every single moment of a day, and that is what I find rewarding about it.
I thank you for your constant visits and support. I try to answer to every comment written by you, but there are times that I get busy with many projects and is not possible for me, but be sure that I will answer them as soon as I can and that I will visit your photoblogs to enjoy life through your eyes.
Special thanks to my parents, family and friends, the staff of aminus3 and the aminus3 community, for their constant support and encouragement.

I wish you to have a beautiful day and to enjoy every moment of it! =)

The sidereal year is the time taken for the Sun to return to the same position with respect to the stars of the celestial sphere. It is the orbital period of Earth, equal to 365.25636042 mean solar days (31,558,149.540 seconds), that is 366.25636042 earth rotations or sidereal days. (A true cycle will always compare two objects that differ mathematically by exactly 1). The sidereal year is 20 minutes and 24 seconds longer than the tropical year. In fact, sidereal years are very slightly longer than tropical years. The difference is caused by the precession of the equinoxes. One sidereal year is roughly equal to 1 + 1/26000 or 1.000039 tropical years.

Reference: Wikipedia (Sidereal Year)

Photo dedicated to my family, friends, aminus3 community, visitors of this photoblog, in conclusion, everyone, =)

Hiroo. January 19th, 2008

My Photography in: onexposure.net | JPG Magazine
Photoblogs of friends: Synesthesia | hektor's Photoblog

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