Cartwheel galaxy

[John Hothersall]

SPX350 F4.5, ST10XME, Astrodon filters.

After seeing the image from Rolf of this small galaxy and remembering it from my list a year before I had to have a go just because it is so weird and unloved.

This galaxy is 400 mil lyrs away and is 150,000 lyrs in diameter. The two small galaxies above are 60,000 lyrs wide and 20 mil lyrs apart and at a similar distance to the Cartwheel.

The Cartwheel is a massive UV source as is the small galaxy on the right of the two above. A quick image showed the Cartwheel has no Ha at all.

Clearly an interaction has occurred shaping the unusual Cartwheel and a map of atomic hydrogen seems to point to one galaxy a little way beyond the two small companions above.

The image also contains (purely an accidental discovery) a pair of interacting galaxies like the Corvid Antenna at the top right of my image near the edge called Haro11. The Haro11 interacting pair are 267 mil lyrs away so they must be quite small.

Lum-3hrs
RGB-1hour each.

Thanks, John.

[Stevec35 (Steve)]

Nicely done John. I've often been tempted to have a go at this one myself but never seem to get the right conditions at the right time.

Cheers

Steve

[gregbradley]

Magnificent John. That's really impressive.

Greg.

[RickS (Rick)]

A fantastic image of a challenging target, John!

[RobF (Rob)]

Inspiring work John.

[sjastro]

Excellent image John.

Steven

[John Hothersall]

Thanks Guys, this galaxy is a little over 1 arc min wide near ngc300 and imagers' tend to be distracted by the Sculptor giants so it gets ignored but would be good at a longer FL like 3meters.

I took a while to find it because it was not visible in the preview, I thought my pointing was out but it was there all along as a 5sec sub showed as it is about 15th mag.

Regards, John.

[E_ri_k (Erik)]

Thats really cool John, it really stands out in the blackness of the surrounding space, reminds me a little of a PN. Impressive detail

Erik

[astronobob (Bob)]

Impressive capturing John, thats one pretty keool cartwheel

[dvj (John)]

This is a wonderful object. I've only seen this imaged once before by Jim Riffle some years back. Great processing and colors.

[Placidus (Mike and Trish)]

Truly magnificent John. Superb, inspiring work.

[Octane (Humayun)]

I absolutely love your work.

I look forward to each of your posts.

H

[Geoff45 (Geoff)]

Very impressive John. I've often thought about taking this one, but decided it was too small. Your picture gives me the incentive to have a go at it.
Geoff

[Flugel88 (Michael)]

Fantastic image john. A quirky little galaxy.

[Ric]

Great images John

That's one galaxy I haven't seen before.

[multiweb (Marc)]

Difficult and tiny object. Very well done.

[SkyViking (Rolf)]

What an awesome image John! The Cartwheel seems to be almost completely neglected among amateurs so it's very nice to see another image of it Great colour too, clearly showing the different stellar populations in the concentric rings. Thanks for pointing out that smaller colliding pair Haro11, I've found them in my 2012 image also now but certainly didn't know there was a Hubble image of that pair too. Great work

[strongmanmike (Michael)]

Great job on a small target John

Mike

[rogerg (Roger)]

Very nice

[John Hothersall]

Thanks again, its good to try these unusual objects now and again.

Originally Posted by SkyViking

What an awesome image John! The Cartwheel seems to be almost completely neglected among amateurs so it's very nice to see another image of it Great colour too, clearly showing the different stellar populations in the concentric rings. Thanks for pointing out that smaller colliding pair Haro11, I've found them in my 2012 image also now but certainly didn't know there was a Hubble image of that pair too. Great work

Thanks Rolf its blue/gray colour was pretty pleasing to see in the RGB. I noticed a strange fuzzy double star in the preview but forgot about it and found out about Haro11 by accident on internet.

Regards, John.