Observation by Tim Haymes: SN 2022ewj in NGC3367 (Leo)

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Tim Haymes


Tim Haymes


2022 Mar 24 - 22:00


2022 Mar 25 - 17:39



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Field centre

RA: 10h46m
Dec: +13°44'
Position angle: +6°41'

Field size

0°22' × 0°13'

  • C11 at F6.1
  • EQ8
  • LRGB filters (Baader)
  • QHY174m GPS, unit gain

2min subs, 9-3-3-3 at -15C ( dark and flat calib)


N. Oxfordshire

Target name

NGC 3367 with SNe


SN 2022ewj in NGC3367 (Leo)

About this image

I have succumbed to LRGB using 1.25" filters in a 5-position filter wheel controlled by SharpCap. While other are moving on to OSC, im typically five years behind the crowd !    In RGB  there is a strong colour contrast between the blue star and yellow galaxy nucleus. I have increasing the saturation a little in this LRGB image.  Processing was with DSS and AstroArt5.    Flats were obtained with a Huion A3 luminous screen (40ms exp) though the L- filter and applied to RGB.  Transparency was fair, with some milkiness in the sky.

Discovered by Koichi Itagaki (Japan)

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