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Observation by Mike Harlow: Nova Cas 2021 = V1405 Cas spectrum

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Mike Harlow


Mike Harlow


2021 Aug 17 - 00:45


2021 Aug 17 - 09:07


Nova Cas 2021

  • 12 inch F/3.6 astrograph
  • Starlight Xpress H16 CCD (2048 x 2048 pxl)
  • Astrodon luminance filter (400-700nm)
  • 22cm, 12 degree objective prism

12 x 20 seconds


Ipswich, UK

Target name

Nova Cas 2021 = V1405 Cas


Nova Cas 2021 = V1405 Cas spectrum

About this image

Spectrum of Nova Cas 2021 = V1405 Cas:  Hydrogen alpha emission still dominates with some helium lines also visible.  The same dark hydrogen Balmer series lines can be seen in the spectra of other stars in the field. The two stars labelled can be seen in an image of the field taken a few minutes earlier.

Field of view is ~ 47 x 27 arc minutes with north right.

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