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Comet C/2018 Y1 - Iwamoto by NGC 2903

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#1 ChristophOSB

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Posted 21 February 2019 - 08:55 AM

Hello!

The Comet C/2018 Y1 - Iwamoto passec NGC 2903 in the evening of the 13th February 2019 around 22:00 UT.

I made over 300 frames with 15 sec with my 300 mm Newton @ 1380 mm.

Klostersternwarte_NGC2903_C2018Y1_20190213_21-58UT_k.jpg

 

As a video on FB:

https://www.facebook...550757150355793


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#2 petert913

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Posted 21 February 2019 - 09:51 AM

WOW !  That is super good.



#3 LarsMalmgren

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Posted 21 February 2019 - 09:55 AM

That is soo nice, really nice with double tail & galaxy well resolved, well done !! bow.gif

 

We had clouds and rain in Denmark and all the remote telescopes had roof close due to various reasons, so no luck for me...


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#4 james7ca

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Posted 21 February 2019 - 10:20 AM

That's the closest approach of a comet to a galaxy that I've ever seen. Very good job and thanks for posting.



#5 alvarete

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Posted 21 February 2019 - 11:00 AM

Wow!
Wonderfull

#6 Astroman007

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Posted 21 February 2019 - 11:50 AM

What a wonderful, enchanted scene. Quite beautiful.


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#7 17.5Dob

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Posted 21 February 2019 - 08:54 PM

waytogo.gif



#8 mike8888

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Posted 22 February 2019 - 12:32 AM

Excellent image! Thanks for sharing.


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#9 Mert

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Posted 22 February 2019 - 01:13 PM

Simply brilliant stuff, these comet colors are great!!!



#10 nyairman

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Posted 22 February 2019 - 01:31 PM

Great image!

#11 Helvetios

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Posted 22 February 2019 - 02:16 PM

Really excellent job!  I would submit that to an astronomy magazine.  You used the right telescope for the job to gather a lot of light in just 15 sec.  I made a meager attempt on Feb 14 with a much smaller telescope and a narrow band filter that was still installed following some deep sky imaging.  You did a great job on your planning.

 

https://www.astrobin...391935/?nc=user

 

Richard


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#12 APshooter

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Posted 22 February 2019 - 03:53 PM

waytogo.gif waytogo.gif waytogo.gif


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#13 ChristophOSB

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Posted 22 February 2019 - 04:19 PM

Thanks!

I´ve made also too over 100 Frames in RGB with a Canon 6Da and a 72 mm / 432 mm Refractor (TS-Photoline).

The comet with the tailes was not so strong as with the CCD but also too visible:

 

Klostersternwarte_C2018Y1_Iwamoto_20190213_2205UT_RGB_SterneKomet5.jpg


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#14 NYJohn S

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Posted 22 February 2019 - 11:32 PM

Beautiful image. How did you track the comet & the stars? Is it a composite image of the 2?



#15 ChristophOSB

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Posted 23 February 2019 - 03:33 AM

Beautiful image. How did you track the comet & the stars? Is it a composite image of the 2?

Thanks!

I made short pictures, tracked to the stars, so that the comet "stands still".

The first stack (stacking software was "Deep Sky Stacker") by stars.

Klostersternwarte_C2018Y1_Iwamoto_20190213_2205UT_RGB_Sterne.jpg

 

The second stack followed the coordinates of the comet. I had to track the comet "by hand" in my pictures. A diligent but routine piece of work.

Klostersternwarte_C2018Y1_Iwamoto_20190213_2205UT_RGB_Komet.jpg

 

I stacked with the "sigma-algorithmus". It rejected different signals (in the first stack the cometsignal - and in the second stack the signal of the stars) and stack only the signal that ist standing still in the pictures.

 

The third step is to combine both pictures in Photoshop.


Edited by ChristophOSB, 23 February 2019 - 03:40 AM.

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#16 NYJohn S

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Posted 23 February 2019 - 10:07 AM

Thanks for sharing the info. It's an amazing image with the detail in the galaxy and the twin tails of the comet. 


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