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For first light for my new scope & focuser, I decided to revisit this small galaxy in Lynx.
SW Explorer MN190 on SW AZ-EQ6, with Pegasus Focuscube Camera: ZWO ASI174MM-Cool at -20 C, gain 20 Guiding: SW finderguider 9x50 with ASI120MM-S and PHD2 Software: INDI/Ekos for data capture, and PixInsight for processing Total integration time: 4.4 hrs
L: 36 x 120 s R: 24 x 180 s G: 20 x 180 s B: 19 x 180 s
(click on the image for a larger version)
I hadn't quite anticipated the extra weight on my mount, especially the weight combined with the larger distance. I couldn't balance the scope even with the extension bar and both weights, so I had to improvise with a few clamps. I couldn't add the extra weight from the ST80. I had to guide with my 9x50 finder, which I normally only use for polar alignment.
Also, today I noticed that the collimation still was a little off. It was WAAAY off when I unpacked the scope. The laser dot hit the primary about midway between the center dot and the edge. Collimation with the help of my barlowed laser put it quite close. Today I used a collimation cap to fine tune it.
It was fairly clear this evening so I got the scope set up to do some galaxy observing. After my first planned set of targets were stil lurking behind our walnut tree I had a look at Stellarium to see if there was anything else I might be able to see that wouldn't be obscured or so high to zenith to avoid the OTA colliding with the tripod (this prevented me viewing C7 - NGC 2403). Above Leo, in the tail of the constallation the Lynx, was a promising candidate NGC 2683. It's quite close to the naked eye stars alpha-Lyn and 38 Lyn and it's a fairly easy hop from alpha-Lyn to the triangle of stars HIP 4932, HIP 43584 and HIP 43410. This triangle fits neatly within the finder and the galaxy itself is quite close to HIP 43410. Once lined up, and the scope tracking, I popped in my 15 mm EP and had a look. The galaxy was pretty close to the centre of the FOV and I was knocked back by how bright it was. A much easier spot that I had expected. It appeared as a linear smudge and with patience yielded a little bit of detail. It would have been worthwhile trying slightly more magnification but I was keen to start some imaging before the moon came up. NGC 2683 is well worth a visit and it's certainly brighter than some Messier galaxies.