Recent content by JDenise

  1. J

    Help calculating The mass of a Black hole (homework help)

    I'd think you'd get something like 14.5 or 16.3 but i know that measuring something that large won't get you an exact number . I'm also guessing that's the reason why is says estimate at the bottom. Thank you, though . I'll need to look at the numbers some more .
  2. J

    Help calculating The mass of a Black hole (homework help)

    i believe so, do you know which values I'd use to plug into the bottom table? I'm not sure why there are two numbers in a column instead of one.
  3. J

    Help calculating The mass of a Black hole (homework help)

    oh, sorry ! its actually an asterisk. that's where i got confused, I've never seen it in a formula like that before .
  4. J

    Top Sky Viewing Apps for iPhone: A Comparison

    I'm not sure if this has already been suggested, but starry night is a good tool for finding things that are happening in the night sky in your area. I am not sure on the cost though, the program was given to me by an astronomy professor .
  5. J

    Help calculating The mass of a Black hole (homework help)

    on this lab worksheet i need to fill out the bottom table (the top one is already filled out). I am having trouble understanding The numbers in the first part of the chart. I know RA is right accession and DEC is declination but what I'm not understanding is why there are two different numbers...
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