Observation by Robin Leadbeater: Markarian 478 Spectrum and Redshift Meas...

Uploaded by

Robin Leadbeater

Observer

Robin Leadbeater

Observed

2025 May 05 - 22:22

Uploaded

2025 May 07 - 00:56

Objects

Markarian 478
Spectrum

Equipment

ALPY 600 spectrograph
ATIK 428 ex camera
Celestron C11 SCT 280mm aperture f5.5

Exposure

6000s (10x600s)

Location

Wigton, Cumbria, UK

Target name

Mrk 478 spectrum

Title

Markarian 478 Spectrum and Redshift Measurement

About this image

The Quasar Mrk 478 is the Deep Sky Section Object of the Month for May. Its spectrum shows strong broad H alpha, H beta and other emission lines, redshifted by 0.0773 compared with the published figure of 0.0777 (SIMBAD).

The object appeared stellar in the spectrograph guider (20x10s) though the SDSS image shows a bright core within a faint extended galaxy ~20 arcsec in diameter

Files associated with this observation

mrk478_poster.png (258.7 kB)

Like this image

Paul Whitmarsh, James Weightman, Andy Wilson, Callum Potter

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