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Nightwash -The Whirlpool - Messier 51
Lens: 910 mm Apo Refractor Camera: K3 ii Photo Location: Ascheberg, Germany ISO: 400 Shutter Speed: Above 6s 
Posted By: Pete_XL, 04-15-2018, 07:22 AM

This is the "Whirlpool Galaxy" M51 shot from my balcony with a Pentax K3ii. The image was buit from 60 x 300s exposure @ ISO 400.


M51 is about 30 million lightyears away from us. The galaxy is interacting with a smaller one that is passing behind it.



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04-15-2018, 09:46 AM   #2
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Brilliant shot Pete! So is the effective focal length 910mm in total, or is that only the telescope's FL? I know there is an adapter so does the adapter change that though a factor of multiplication?
04-15-2018, 11:38 AM   #3
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Must be a lot of satisfaction seeing this image appear after all that effort...well done Pete_XL.
04-15-2018, 02:11 PM   #4
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Amazing! 60 photos at 5 minutes each (so you had some kind of tracker device I guess)? What software did you use to get this image? Superb result!

04-15-2018, 02:25 PM   #5
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QuoteOriginally posted by SSGGeezer Quote
Brilliant shot Pete! So is the effective focal length 910mm in total, or is that only the telescope's FL? I know there is an adapter so does the adapter change that though a factor of multiplication?
Thank you for the compliment!
910 mm is the effective focal length of the telescope and did not use any converters or Barlow lenses. I applied a factor 2 scaling in the image processing while stacking the 80 images.

---------- Post added 15-04-18 at 23:26 ----------

QuoteOriginally posted by photomax7 Quote
Must be a lot of satisfaction seeing this image appear after all that effort...well done Pete_XL.
Thank you!! Yeah, it's worth it!!!

---------- Post added 15-04-18 at 23:29 ----------

QuoteOriginally posted by GeoJerry Quote
Amazing! 60 photos at 5 minutes each (so you had some kind of tracker device I guess)? What software did you use to get this image? Superb result!
Jerry, I use a tracking mount and stack the heap of single exposures with an astro-software (free) to combine it into one image. The rest is done in Photoshop.
04-15-2018, 02:43 PM   #6
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Phenomenal and historic!
04-16-2018, 02:14 AM   #7
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QuoteOriginally posted by oculus Quote
Phenomenal and historic!
Thank you for the flowers
04-16-2018, 07:11 AM   #8
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Excellent outcome from some careful, patient work. A really special photo!

Jer

04-16-2018, 09:04 AM   #9
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QuoteOriginally posted by Sailor Quote
Excellent outcome from some careful, patient work. A really special photo!

Jer
Thanks a lot !
04-16-2018, 09:14 AM   #10
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Excellent result.

All, click on the photo to find his Flickr photostream. He has additional astro work there.
04-16-2018, 05:45 PM   #11
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I'm truly impressed by that image and your knowledge.
04-16-2018, 06:33 PM   #12
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Superb photography coupled with excellent narrative. Many thanks.

TT
04-16-2018, 10:25 PM   #13
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QuoteOriginally posted by DeadJohn Quote
Excellent result.
All, click on the photo to find his Flickr photostream. He has additional astro work there.

QuoteOriginally posted by sealonsf Quote
I'm truly impressed by that image and your knowledge.
QuoteOriginally posted by Tonytee Quote
Superb photography coupled with excellent narrative. Many thanks.

TT

Thank you all! It's all about passion....
07-06-2018, 07:24 AM   #14
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QuoteOriginally posted by Pete_XL Quote
This is the "Whirlpool Galaxy" M51 shot from my balcony with a Pentax K3ii. The image was buit from 60 x 300s exposure @ ISO 400.


M51 is about 30 million lightyears away from us. The galaxy is interacting with a smaller one that is passing behind it.


Gorgeous shot!
08-10-2018, 07:22 AM   #15
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QuoteOriginally posted by Pete_XL Quote
This is the "Whirlpool Galaxy" M51 shot from my balcony with a Pentax K3ii. The image was buit from 60 x 300s exposure @ ISO 400.


M51 is about 30 million lightyears away from us. The galaxy is interacting with a smaller one that is passing behind it.


whoa! excellent work Pete! this is perhaps my favourite galaxy, next to our own.
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