Observation by Steve Knight: APM 08279+5255

Uploaded by

Steve Knight

Observer

Steve Knight

Observed

2024 Jan 09 - 20:50

Uploaded

2024 Jan 10 - 17:13

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Constellation

Lynx

Field centre

RA: 08^h31^m
Dec: +52°45'
Position angle: -63°09'

Field size

0°29' × 0°18'

Equipment

Seestar S50

Exposure

93 minutes of 10 sec exposures

Location

Banbury

Target name

APM 08279+5255

Title

APM 08279+5255

About this image

A gravitationally lensed quasar in Lynx, magnitude 15.2. These are 12.05 billion year old photons. I was astonished that this is possible with a 50mm scope.

Files associated with this observation

APM_annotated_ABE_ABE cropped faststoned.png (354.4 kB)

Like this image

Grant Privett, Graham Winstanley, Miguel Araújo, Robin Leadbeater, Dominic Ford

Comments

Grant Privett, 2024 Jan 10 - 18:25 UTC

What magnitude is that?

Steve Knight, 2024 Jan 10 - 19:00 UTC

Magnitude 15.2 Grant, forgot to include that. Will edit post.

Steve

Grant Privett, 2024 Jan 10 - 19:10 UTC

Pretty respectable for a 2" :)

Robin Leadbeater, 2024 Jan 15 - 11:52 UTC

That is one of my favourite test targets for deep sky spectroscopy. Here is the spectrum back in 2005 with the then new Star Analyser and a modified webcam. (A bit more aperture though !)

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