Observation by Andy Wilson: chi Cyg 8th August 2016

Uploaded by

Andy Wilson

Observer

Andy Wilson

Observed

2016 Aug 08 - 20:58

Uploaded

2016 Aug 09 - 19:03

Objects

χ-Cyg
Spectrum

Equipment

Altair Astro RC 250
Lhires III spectrograph 2400 l/mm
SXVR-H694

Exposure

1800 seconds

Location

Yatton, Somerset

Target name

chi Cyg

Title

chi Cyg 8th August 2016

About this image

Spectrum of chi Cyg from 8th August compared with a similar spectrum from 2nd June. chi Cyg brightened from just below 10th mag to nearly 7th mag over this time period and is shrinking as it brightens. I am looking for the appearance of the H alpha emission line. This should be appear near maximum light and is related to a hypersonic shock wave that passes through the photosphere.

Files associated with this observation

chiCyg_20160808_comb.bass_.jpg (131.8 kB)

Like this image

Jeremy Shears, Bill Ward, Tony Rodda, Colin Henshaw

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