- Dear colleagues, Today I released Comet for Windows 1.2.0. http://www.aerith.net/project/comet.html Now I added a function to calculate magnitude formula of aMessage 1 of 1 , Oct 2, 2004View SourceDear colleagues,
Today I released Comet for Windows 1.2.0.
Now I added a function to calculate magnitude formula of a comet whose
brightest peak is shifted.
As you know, some periodic comets tend to become brightest some time
after they become closest to the sun. In order to express the light
curve of those comets, there is a way to calculate the magnitude using
heliocentric distance of dt days before. That magnitude formula is as
m1 = m0 + 5 log delta + k log r(t - dt)
For more details, please see the tutorial page:
Various Light Curves of Comets
One of those periodic comet, 121P/Shoemaker-Holt is now observable. It
was 17 mag on Sept. 18. The comet will be brightening after this, and
reach to 14 mag in early 2005. The light curves are available at: