Observation by Nick Hewitt: Markarian 421

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Constellation

Ursa Major

Field centre

RA: 11^h04^m
Dec: +38°19'
Position angle: -50°31'

Field size

1°12' × 0°55'

Equipment

Starwave 70mm Starwave APO and Canon 60Da

Exposure

14 x 60secs ISO2000

Location

Northampton

Target name

Markarian 421

Title

Markarian 421

About this image

One of the more accessible AGNs of the BL Lacertae variety. Variable at all wavelengths and easy to find near 51 UMa in the Bear's hind legs. It is some 400 million light-years distant.

Files associated with this observation

Markarian 421 2018-03-07 2200 SW70 ISO200014 x60s annot 4.jpg (434.9 kB)

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Jeremy Shears, Alan Thomas, Callum Potter

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