British Astronomical Association
Supporting amateur astronomers since 1890

BAA Images Tony Rodda

Observation by Tony Rodda: HD181096 Flux Comparison

Uploaded by

Tony Rodda

Observer

Tony Rodda

Observed

2016 Nov 23 - 20:19

Uploaded

2016 Dec 07 - 14:40

Objects

HIP-94755
Spectrum

Equipment
  • C925 (0.63) with CGEM
  • ALPY600 with calibration module
  • Atik460EX mono
Location

Newcastle (TRO)

Target name

HD181096

Title

HD181096 Flux Comparison

About this image

This is the spectrum for a Miles comparison star HD181096 (taken as a standard for observations on WZ Lyr) and the spectrum from the Miles database itself both of which have been flux calibrated using a Simbad V filter value of 6.0.

There's generally good agreement from 380nm up to about 620nm but there's a divergence thereafter the reasons for which could be due to either an error in the camera response curve or perhaps the star's mag in the R band at 5.7 (and I band at 5.5). That is, it's actually dimmer in that regime but I haven't been able to accommodate a second value in my comparison.   (That last bit is just thinking aloud).

Files associated with this observation
Like this image
Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.