Observation by Les Dickens: The Sun

Uploaded by

Les Dickens

Observer

Les Dickens

Observed

2023 May 04 - 10:50

Uploaded

2023 May 15 - 15:07

Objects

The Sun

Equipment

Coronado PST
ZWO ASI178MM camera

Exposure

12.55 ms

Location

Cheltenham, UK

Target name

Sun - 2023.05.04

Title

The Sun

About this image

500 frames of which the best 150 selected; 16 bit .SER format; video capture time 96 secs.

A second video (78 secs) with longer exposure time (~ 50 secs) and higher gain was taken to capture the prominence detail.

Processed with IRIS.

It is difficult to get an image at prime focus with a PST (although it does seem to vary from day to day – I’m not sure why). To get this image I wedged an old Barlow lens into the eyepiece tube at about 1 cm distance from the camera sensor; this had the added advantage of magnifying the image to almost fill the sensor.

Files associated with this observation

2023.05.04_10.50ut_v2c_a.jpg (1.1 MB)

Like this image

Callum Potter, Mike Harlow, Miguel Araújo, Jim Tomney, Graham Winstanley, Gerard Cauchi

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