Observation by Mike Harlow: Nova Cas 2021 = V1405 Cas: Low Res Spect...

Uploaded by

Mike Harlow

Observer

Mike Harlow

Observed

2024 Mar 30 - 21:30

Uploaded

2024 Mar 31 - 09:16

Objects

Nova Cas 2021
Spectrum

Equipment

12inch F/3.6 astrograph
Starlight Xpress H16 CCD (2048 x 2048 pxl)
Astrodon luminance filter (400-700nm)
26cm diameter, 3 degree objective prism

Exposure

45 x 20 seconds

Location

Ipswich, UK

Target name

Nova Cas 2021 = V1405 Cas

Title

Nova Cas 2021 = V1405 Cas: Low Res Spectrum

About this image

Not the best spectrum in the world but it does show the continuum with weak emission lines from hydrogen and helium. At mag 12.6 in a crowded star field it's a difficult target. Note the Carbon star, upper left, with all the emission at the red end of the spectrum (forgotten it's designation!).

There are many calibrated spectra of this object in the BAA spectroscopy database. The most recent is that of J Foster from December 2023.

Field ~ 40 x 30 arc minutes with north, and red, to the right.

Files associated with this observation

Nova_Cas2021_20240330_spectrum_mjh_text.jpg (390.0 kB)

Like this image

James Weightman, Callum Potter, Jeremy Shears

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