High School How often do you re-acquire dark and bias frames?

  • Thread starter Thread starter Andy Resnick
  • Start date Start date
  • Tags Tags
    Bias Frames
Click For Summary
The discussion centers on the frequency of updating dark and bias master frames for astrophotography. Users suggest that re-acquiring these frames should be done periodically, especially if the camera sensor may degrade over time. Many recommend updating a few times a year, particularly for those who shoot regularly. The ease of generating new frames with cooled CCD cameras is highlighted, as it allows for quick and efficient updates. Regular updates can help maintain image quality and accuracy in astrophotography.
Andy Resnick
Science Advisor
Education Advisor
Insights Author
Messages
7,705
Reaction score
3,806
Semi-random question: I generated dark and bias master frames (and from those, bad pixel maps) about a year ago. I'm sure my camera sensor has degraded over time.. b/c entropy... and so I'm wondering if it's worthwhile to create a new set. How often do you 'update' your dark and bias master frames?
 
Astronomy news on Phys.org
Perhaps a few times a year when I'm regularly shooting. I have a cooled CCD camera, so making a new set of dark and bias frames is trivial. I just set my camera up inside during the day and let it go to town taking as many exposures as I want.
 

Thread 'Lunar Orbit Issues & Lunar Clocks'

I recently purchased a lunar clock intended as a Christmas present for a young family friend who has become interested in astronomy. The clock face shows twelve images of the Moon in all its main phases, with the Full Moon depicted at the "twelve o'clock" position. Now I purchased this clock especially early to allow time to check on its accuracy. After waiting for a full lunar orbit to occur, I have since discovered that the clock time when measured relative to its lunar images (that's to...
View full post »

Similar threads

Undergrad CCD Readout Noise vs Temperature
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad How to do the Dark Frame Subtraction? (camera imaging)
  • · Replies 16 ·
Replies
16
Views
4K
High School Infrared Detectors & The 2nd Law of Thermodynamics
  • · Replies 152 ·
6
Replies
152
Views
10K
Using a CCD camera to solve physics problems
  • · Replies 3 ·
Replies
3
Views
3K
Book Review: Invisible Women: Data Bias in a World Designed for Men
  • · Replies 19 ·
Replies
19
Views
8K
High School How do the candidates for Dark Energy 'work'?
  • · Replies 4 ·
Replies
4
Views
2K
How Does Flickering Light Influence Our Brain's Perception of Image Brightness?
  • · Replies 8 ·
Replies
8
Views
5K
Undergrad How do the collider experiments measure the mass of the W boson?
  • · Replies 4 ·
Replies
4
Views
4K
Q: Deep Sky Stacker hints & tips
  • · Replies 1 ·
Replies
1
Views
5K
How Do You Calculate Proton Beam Energy in a Lab Frame?
  • · Replies 7 ·
Replies
7
Views
2K