Description
1. Now consider a real 2.5m telescope. Assume its CCD camera has both a read noise of 10 counts and a dark current of 10 counts/second for every pixel.
a. The star is observed for 20 seconds and a total of 20,400 counts are recorded from the image and this image is spread over 40 pixels in the CCD camera. What is the S/N of the detection of this star?
b. What is the S/N if the telescope detects a background nebula that contributes a uniform background of 99 counts in each of the 500 pixels that surround the star image?
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.
Explanation & Answer
Review
Review
Anonymous
Excellent! Definitely coming back for more study materials.
Studypool
4.7
Trustpilot
4.5
Sitejabber
4.4
Similar Content
Calculate the ratio of vapor pressure of pure A to that of pure B., chemistry homework help
A solution of A and B with 30 mole% of A is in equilibrium with its vapor, which contains 60 mole% of A. Calculate the rat...
Physics Two Dimensional Creeping Flow in A Vertical Slot Problem
P1: KAE
0521849101pre
CUFX064/Leal
Printer: cupusbw
0 521 84910 1
April 25, 2007
ADVANCED TRANSPORT PHENOMENA
Advan...
Genetics, genomes, multiple choice, science homework help
answer these questions...
Need help with chemistry
Calculate the approximate total Ca conc. in the
river water contributed by the Ca(OH)2 (provide all your assumptions) (Gi...
University of Houston Physics II Kirchhoffs Junction Rule Worksheet
The attached file gives the question and the four parts to it. Please answer each question pertaining to the circuit above...
lab report
I wrote the lab report already, you'll write introduction & conclusion only. I will provide the manual and info about the ...
20211011225044camscanner 10 11 2021 18.49
...
Discussion 1
2Al(s) + 2KOH(aq) + 6H2 O → 2KAl(OH)4(aq) + 3H2(aq) 2KAl(OH)4(aq) + H2 SO4(aq) → 2Al(OH)3(s) + K 2 SO4(aq) + 2H2 O(l)...
The Theory Of The Modern Humans And The Comparison.edited
The Theory of the Modern Humans and the Comparison According to the Darwinian Theory, it's stated that all species are rel...
