NGC2403 (Tim Hutchison)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403 · NGC 2404

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NGC2403

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NGC2403

NGC2403 is an intermediate spiral galaxy in Camelopardalis at a declination of 65° 36'. It is an outlying member of the M81 group. The northern arm connects the galaxy to NGC2404, a massive 2000ly wide H II region that even larger than the Tarantula nebula in the LMC.

This was my first (and last) image with this scope. I was very excited to acquire it, but on using it I was very disappointed. The design of the scope has a rigid connection between the primary and the focuser. Unfortunately, the connection to the rear cell was not very secure. I'm not certain if this is a problem with all or if I just got a bad one, but it had some major impact. I could not use the 10Micron mount to its fullest because the RMS on the model was around 36" (10" is ok, 20" is terrible, my EdgeHD 8 is around 4"). This mean that I had to guide the scope. Even worse, because the weight of the imaging train was causing flexture with the primary mirror, I could not hold collimation when moving around in the sky. I started the night collimating and getting as near to perfect as I could, but you can see how far off it is in this image. It changed when I slewed to this object because of the flexture. Sadly, I had to return this scope to the distributer. Unfortunately, I'm not going to risk getting another one...

I'm going to try a refractor!

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	3417069
PixInsight job	T6EQA4VXW6JT8EBA8EK6AYEEC1RCZGHS
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	07h36m51s.588
RA (top/left)	07h34m12s.100
RA (top/right)	07h39m42s.800
RA (bottom/right)	07h39m33s.819
RA (bottom/left)	07h33m59s.100

Dec (center)	+65°36′05″.22
Dec (top/left)	+65°23′01″.57
Dec (top/right)	+65°24′32″.90
Dec (bottom/right)	+65°48′58″.84
Dec (bottom/left)	+65°47′24″.90

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