Observation by Peter Anderson: Occultation Antares 10th June 2025

Uploaded by

Peter Anderson

Observer

Peter Anderson

Observed

2025 Jun 10 - 21:16

Uploaded

2025 Jun 27 - 05:12

Objects

The Moon
Antares
Conjunction

Equipment

Skywatcher 150mm F8 ED Refractor, Canon 90D DSLR

Exposure

1/640 sec ISO 200

Location

Brisbane, Australia

Target name

Moon and Antares

Title

Occultation Antares 10th June 2025

About this image

This is the visual appearance at the telescope just before the occultation at 09hrs 16min UT. The 99% illuminated Moon meant that a properly exposed image of Antares resulted in a blank lunar disc. I tried different exposures and adjustments to combine the two on one image but resolved finally to place a suitable 'Antares' in precisely the spot and colourised it accordingly. This then represents the visual view. Upon re-emergence of Antares from behind the Moon at 19hrs 30 min UT the 5th magnitude companion 2.5 arc seconds to the west was plainly visible because the Moon was so bright. It is normally very difficult to see this companion except at dark limb reappearance events when it spectacularly 'pops out' from behind the lunar limb several seconds before Antares.

My main focus, as always, was on timing the lunar occultation events and this imaging was secondary.

Files associated with this observation

IMG_0888 Antares Occn at 0916UT adj.JPG (1.5 MB)

Like this image

Graham Winstanley, Dominic Ford

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