ARP 9, NGC 2523 Spiral with split arm

[elpajare]

Arp's notes: Bifurcated arm does not start at end of bar

Challenge: The split arm

TSoptics RC8 + Risingcam IMX294C+ UVIR

15x25" + Startools

 

 

[Mike JW]

Thanks Elpajare for posting this.  It was on my list for the other night but cloud came in before I got to it. Great to see you got the arms coming off the end of the bar. Mike

[elpajare]

Without further treatment of the original image, it would have been impossible to detect these very weak bifurcated branches of the galaxy.

This makes this Forum a very special place to share this type of work. Thank you for commenting and viewing the images.

[Mike JW]

Hi Elpajare,

At last I got a clear slot so I gave Arp 9 a go, having first studied your shot. I had the 15" Dob out last night so popped in the camera (scope covered in frost, as was I suspect). I have to use short subs, (max 7 secs) as the scope does not track very well. Pleased with the result, to see the bar and arms. The shot is exactly what I saved.

Mike

[Bill S]

An interesting object. Well worth a look. Thank you for pointing it out and the information.

Bill