Messier 100

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Graeme
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Messier 100

Post by Graeme »

Here's Messier 100, a grand design spiral galaxy in Coma Berenices. It is one of the brightest and largest galaxies in the Virgo Cluster and is approximately 55 million light-years from our galaxy, it has a diameter of 107,000 light years.

89 x 120 second exposures captured 16/04/21 with my ASI294MC camera and 9.25 SCT telescope.

My first 3 hour exposure image and had to do my first meridian flip as the object moved past due south during the exposures!

Autosave-M100-EL.jpg

Hope you like it.

Regards

Graeme
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HansV
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Re: Messier 100

Post by HansV »

Great picture!
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Hans

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Graeme
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Re: Messier 100

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Thanks Hans.

It was the first time in ages that there was a clear night with still air, no Moon and no work the next day!

Regards

Graeme

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BobH
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Re: Messier 100

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Awesome! Thanks for sharing this great pics!!
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Re: Messier 100

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That's so cool!!! Terrific!!

Lisa

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Re: Messier 100

Post by PJ_in_FL »

Is there a higher resolution image that you can share? This JPG is incredible but leaves me wanting more!
PJ in (usually sunny) FL

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Re: Messier 100

Post by jstevens »

Thanks Graeme!

Keep them coming.
Regards,
John

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Graeme
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Re: Messier 100

Post by Graeme »

Thanks for the kind words all.

PJ_in_FL wrote:
19 Apr 2021, 11:45
Is there a higher resolution image that you can share? This JPG is incredible but leaves me wanting more!

Here's a couple of 45Mb png files. I reprocessed the first one in an attempt to bring out the colour of the spiral arms.

https://drive.google.com/drive/folders/ ... sp=sharing

Regards

Graeme

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Re: Messier 100

Post by PJ_in_FL »

Graeme wrote:
19 Apr 2021, 18:01
Thanks for the kind words all.

PJ_in_FL wrote:
19 Apr 2021, 11:45
Is there a higher resolution image that you can share? This JPG is incredible but leaves me wanting more!

Here's a couple of 45Mb png files. I reprocessed the first one in an attempt to bring out the colour of the spiral arms.

https://drive.google.com/drive/folders/ ... sp=sharing

Regards

Graeme
Amazing! And the depth you've captured with maybe a dozen or more objects also visible in the view makes me wish I still lived in West Texas so I could use my small telescope again. Florida skies just don't get dark enough, even down in the swamps of the Everglades.
PJ in (usually sunny) FL

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Graeme
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Re: Messier 100

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Cheers PJ

The full resolution images are full of surprises. Sending them to nova.astrometry.net gets an annotated version returned. M100 has a number of satellite galaxies.

Capture.JPG

There's a lot of galaxies to be found in the direction of Leo and Virgo!

Regards

Graeme
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Graeme
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Re: Messier 100

Post by Graeme »

PJ_in_FL wrote:
20 Apr 2021, 16:19
..... makes me wish I still lived in West Texas so I could use my small telescope again.

Then you would need to sign up again as PJ_in_WT!

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stuck
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Re: Messier 100

Post by stuck »

In the best tradition of Scuttlebutt :pirate:

In other space related news, this article has a great picture of the location of a man-made distant object:
https://www.nasa.gov/feature/nasa-s-new ... -milestone

It reminds me of Pooh's map showing where the Woozle wasn't :smile:

Ken

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Re: Messier 100

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Graeme wrote:
19 Apr 2021, 18:01
Here's a couple of 45Mb png files. I reprocessed the first one in an attempt to bring out the colour of the spiral arms.
The originals were messy, but these are even messier
StuartR


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Re: Messier 100

Post by PJ_in_FL »

stuck wrote:
21 Apr 2021, 07:33
In the best tradition of Scuttlebutt :pirate:

In other space related news, this article has a great picture of the location of a man-made distant object:
https://www.nasa.gov/feature/nasa-s-new ... -milestone

It reminds me of Pooh's map showing where the Woozle wasn't :smile:

Ken
Curious to know what the straight line distance is between the two spacecraft.

Also, the linked article on the use of New Horizons to get enhanced parallax imaging is fascinating, too!
PJ in (usually sunny) FL

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Graeme
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Re: Messier 100

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stuck wrote:
21 Apr 2021, 07:33
In other space related news,....

15 years to catch up with the Voyagers and still only 50 AUs! It's a long way to Alpha Centauri!

StuartR wrote:
21 Apr 2021, 07:38
The originals were messy, but these are even messier

You should see the images that the famous French astronomer Crasseux produced!

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stuck
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Re: Messier 100

Post by stuck »

Graeme wrote:
22 Apr 2021, 05:19
...It's a long way to Alpha Centauri!...
Is that anywhere near :sing: Tipperary?

Ken

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HansV
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Re: Messier 100

Post by HansV »

Cosmically speaking, yes.
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Hans

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stuck
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Re: Messier 100

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Graeme wrote:
22 Apr 2021, 05:19
...the famous French astronomer Crasseux...
You mean the one that's not on this list of notable French astronomers?
https://en.wikipedia.org/wiki/List_of_F ... stronomers
and doesn't seem to turn up in various Google searches?
:evilgrin:

Ken

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HansV
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Re: Messier 100

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I bet his first name was Plus...
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Hans

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stuck
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Re: Messier 100

Post by stuck »

:scratch: I'm clearly missing something here...

Ken