On 19th Jan 2018 the sky was no where near as clear and transparent as it was on the previous night. However with the Watec video camera I can still get to work with such a sky.

There was a final Arp in Orion that I needed to collect, that would complete every Arp on chart J in the Arp Atlas of Peculiar galaxies 🙂 As with the previous Blog this Arp 52 in fact had no NGC identifier so it wasn’t in the Carte du ceil database so I had to use the RA & Dec readout on the AWR handset to locate it, it was too bad despite being tiny 0.6′ x 0.4′ and very faint Mag 15.6. The Atlas states ‘Spiral with small HSB companion on arm’ I was fortunate in that the mirror, camera and sky just allowed me to see the companion as independent from CGCG 421-27 which is the main galaxy.

Arp 52 in Orion, tiny & faint!

Moving on I selected a target in Gemini Arp 165, by this point the sky was being crossed by patches of scudding cloud which were beginning to coalesce! This galaxy turned out to be a nightmare for me to locate, I had to keep trying re-syncing on nearby brighter stars and slewing back to the marked point in the software, at least this had an NGC designation NGC 2418, not that it helped it took much longer to find it that the previous ones without! I located it once but dismiss it as not being the correct one due to cloud obscuring field stars and making it not match the atlas finder pic! Eventually I decided I had it and made my sketch, I then let the camera run to see if I could get more detail but I didn’t as the sky completely clouded over by 01.00.

I was just able to make out a tiny thin jet like projection exiting the galaxy at 5’Oclock I suspect this not to be a jet as one was not mentioned in the atlas but hopefully the start of a spiral arm extension. There were other very faint galaxy smudges visible close by, I tried to represent these but they may not show in the scanned negative image. The atlas states “diffuse filaments”

Arp 165 in Gemini

And that was it for the night, 2 more in the bag and time for bed 🙂


Clear skies, Dale