Most Popular Blogs

  1. Information, Entropy and Temperature of Black Holes

    by , 06-05-2012 at 04:28 AM
    Information in black hole is proportional to total number of microstates N in black hole. Other words, it is proportional to total energy of black hole divided by smallest possible energy which can exist in black hole:

    S ≈ k Etotal/Esmallest

    Let's explain it more detail.

    Most important step for understanding the information of black is to find smallest piece of energy which can be in black hole. The simple way present energy is presents it as photon ...

    Updated 02-05-2014 at 04:58 AM by astroval

    Astrophysics , Black Hole
  2. Cold/Hot Weather Observatory Operation

    by , 10-01-2012 at 09:30 PM
    Quote Originally Posted by Bob327 View Post
    Well Chuck you are in New York State and Jeff is in Massachusetts BOTH colder then it is here in Maryland
    My observatory is now entering it 7th full winter of usage (6th anniv of its first light is the 12 of this month)

    Cold has only affected my laptop and my scopes HC .. MY solution for this was just to build a simple bottomless box the size of a briefcase..which I drilled a hole in both sides and installed a small simple 7W Christmas tree light bulb (red naturally) ..
  3. Cleaning Corrector SCT on the Scope

    by , 12-30-2012 at 12:14 AM
    A corrector will not keep its pristine appearance if used and we have to live with that fact.

    There are several different methods that are suggested on searches such as Windex, ASO etc, but I find that the method below does a good job.

    Before any cleaning takes place, make sure that the surface of the corrector has been blown off with an air bulb, not compressed air that may leave contaminates. Then carefully lift off other debris using a soft lens brush from a camera ...
  4. All Christmas NEW Telescope Owners -- Please Read!

    by , 12-15-2013 at 09:59 PM
    Hello to all the new and lucky Christmas telescope owners,

    Please use your telescope for the very first time during the day.

    All of the following information will strive to support the above statement.

    I’m writing this post so that you and yours will have the highest possible chance of having a pleasant evening viewing our amazing night sky. To me, it is a shame when I read that someone got so frustrated trying to set up the scope in the dark that ...
    Tags: day, setup, telescope Add / Edit Tags
  5. Another try at first AP light for my site

    by , 06-04-2013 at 11:44 PM
    After Sunday night's attempt getting cancelled for high wind, I am going to make another attempt tonight to get my first images from my new site. The sky is clear and the breeze is considerably lighter than Sunday night. Seeing is forecast to be poor, but who cares?

    If you want to follow my setup, at least until it gets dark, I have two webcams running:
    Both update ...
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