These are our observations in Lepus
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A few finds in Lepus
It was my initial intention to stay in Orion and look for more faint planetary nebulae. Here I have to report 2 failures.
The first one was absolutely zero seen of PK204-8.1, this according to images is a lovely ring structure. I could detect nothing, not a hint. I spent an hour trying with settings on the monitor and camera turning the exposure up to 20-sec integration and still nothing. I could see the stars that are superimposed on the nebula, all the field stars down to magnitude 19 or fainter but no nebulosity and I knew exactly where it would be!
Next PK215-30.1, I could see nothing at the location, looking at images this was less surprising than the first failure as it was a diffuse and tenuous nebula. Studying the monitor with the knowledge of what the nebula looked like, well maybe there was some milky structure there but I was far from sure so I moved on.
I dropped down into Lepus and changed quarry to galaxies.
Arp 123 was a revisit, last sketched back in 2013. This time I pulled out a little more of the dust lane than previously and sketched in some fainter stars than back in 2013. I also caught a nice little PGC 172117 with a central bulge just out of the field-of-view to the south. I made a quick shape sketch in the info margin of the main sketch.
Sketch of Arp 123 by Dale Holt from his Chippingdale observatory in Hertfordshire using his 505mm Newtonian with a Watec 120N+ video camera. Next I got a nice little first, NGC 1843 a fine SC spiral, magnitude 12.7, two arms seen, mottled central region and a couple of superimposed brighter stars, a nice object.
Sketch of NGC 1843 by Dale Holt from his Chippingdale observatory in Hertfordshire using his 505mm Newtonian with a Watec 120N+ video camera. IC 418 (PK 215-24.1) was an interesting and surprising observation, to cut a long story short, using the camera in the usual setting format the nebula appeared as a bright circular and uniform disc.
I know it is basically a fairly bright star and a faint spherical nebula in line of sight association. The camera appeared to be combining the two! If I turned it up to max 20-sec integration then the object displayed diffraction spikes. However if I turned the camera right down to a very short integration time that would just show down to magnitude 5-7 stars then a small nebulous disc appeared with an obvious associated star, as drawn. I can't work it out but I have recorded what I saw, and from my perspective it is what it was on the video camera.
Sketch of IC 418 (PK 215-24.1) by Dale Holt from his Chippingdale observatory in Hertfordshire using his 505mm Newtonian with a Watec 120N+ video camera. That is all I have to share. This persistent haze or clag as they say north of Watford really has put the kibosh on what could have been a nice little winter run for us deep sky peeps.
Dale Holt - (21 January 2020).
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A Haul of Deep-Sky Sketches
This is the best haul of deep sky sketches that I have had for quite some while!
The two planetary nebulae NGC 2022 and NGC 22371/2372 are 're-visits' I have sketched both of these before but years ago with my old 350mm Newtonian and Watec camera, the level of detail is significantly higher in these new sketches.
ARP 186 was a challenge, especially seeing the slender trunk like projection/arm there are also another 3 small faint galaxies in the field, these I have not identified.
Some nice detail can be seen in NGC 1924 a rare Orion galaxy and a first observation for me, note also a faint unidentified galaxy to the upper right of my sketch and what appeared to be another spiral directly below the main galaxy, again unidentified.
NGC 1964 in Lepus was disappointing until I went out into the observatory and saw just how low the scope was pointing into the murky glow in London's direction!
Finally a first visit for me to a lovely galaxy trio in Gemini, another constellation not normally associated with galaxy hauls.The largest spiral which I believe is NGC 2389? shows some great detail.
Dale Holt - (8 January 2016).