Checking CCD Photometry Before Upload for Beginner
Hello! I just finished my first analysis of a set up images of T PYX, and I was wondering if someone might check it to be sure that I've done things correctly and filled out the forms correctly before uploading the observations.
I have an Meade 8" LX200 Classic and SBIG ST-402 with BVIC filters. I used MPO Connections to get a number of observations of variables in Pyxis on 1-April. Through an error in the script, I only obtained I filtered images. I just finished an analysis of T PYX.
I used AIP for Windows version 1 to stack three images. I calibrated the image using the the advanced protocol to scale a stack of 25 minute darks and Bias frames at -5 degrees and flats from a light box. As I get into MPO Canopus more, I may switch to thta program to calibrate images.
I used MPO Canopus for the data evaluation. Since I only had I filtered images, only two comparison stars in the CCD list had Ic values - label 113 and 115. I used one as the comp and one as the check.
Canopus yielded a magnitude of 15.447 with an error of 0.041.
One thing I'm interested in is the annular sizes. There is a faint star of similar magnitude close by. I tried to put it into the zone between the star and the sky background, but I'm not sure the best way to size the sizes.
Once I'm a bit more confident that I'm following the appropriate steps, I'll evaluate my other images. Thank you for your consideration. Best regards.
Michael A. heald