Observation by Grant Privett: Didymos

Uploaded by

Grant Privett

Observer

Grant Privett

Observed

2022 Dec 23 - 01:00

Uploaded

2022 Dec 24 - 16:22

Objects

65803 Didymos

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Constellation

Gemini

Field centre

RA: 07^h57^m
Dec: +27°48'
Position angle: -173°06'

Field size

0°15' × 0°10'

Equipment

300mm f/4 Newtonian
Trius 694 mono
NEQ6+Rowan belt upgrade

Exposure

310x 30s

Location

Near Salisbury

Target name

Didymos and debris tail

Title

Didymos

About this image

Quite a long observation of this asteroid. Its 16 magnitude according to JPL Horizons and looked just like a normal star in single frames.

After adding a few nore and manually aligning on the asteroid's motion, the tail of debris from the impact started to show.

For this image I just did a quick and dirty median stacking job but as the transparency was all over the place and cloud was passing through, a more sophisticated processing is needed sometime.

The counts in pixels in the tail were just 10 above the surrounding sky - smaller than the sky noise and only 3x bigger than the CCD readout noise.

Files associated with this observation

didymos_20221223.jpg (215.2 kB)

Like this image

Martin Mobberley, Gerard Cauchi, Jeremy Shears, Richard Sargent, Mike Harlow, David Basey

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