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Bodes Galaxy - M81

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#1 SeymoreStars

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Posted 23 December 2019 - 10:31 PM

Messier 81 is a spiral galaxy about 11.8 million light-years away, so it's a full days drive at warp speed.
It's in the constellation Ursa Major.

 

Image15
 
Details here - get.jpg?insecure

 


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#2 sunnyday

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Posted 23 December 2019 - 10:37 PM

absolutely great shot


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#3 Jim Waters

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Posted 23 December 2019 - 10:38 PM

Real nice image and processing Steve...!


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#4 iwannabswiss

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Posted 23 December 2019 - 10:53 PM

Very clean.  I like.


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#5 Traveler

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Posted 24 December 2019 - 12:15 AM

Very nice...and lots of other objects can be seen.

 

For example this one: 

 

Knipsel.PNG

 

I tried to found out the name of this object but couldn't find the name. Any suggestions?

 

Here a more detailed of that object:

https://apod.nasa.go..._flux_ederL.jpg


Edited by Traveler, 24 December 2019 - 12:17 AM.

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#6 SeymoreStars

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Posted 24 December 2019 - 12:28 AM

Very nice...and lots of other objects can be seen.

 

For example this one: 

 

attachicon.gifKnipsel.PNG

 

I tried to found out the name of this object but couldn't find the name. Any suggestions?

 

Here a more detailed of that object:

https://apod.nasa.go..._flux_ederL.jpg

Yes I see it in my stacked images but there's a powerful gradient that was removed making the object all but invisible. Nice catch!!



#7 SeymoreStars

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Posted 24 December 2019 - 12:35 AM

Very nice...and lots of other objects can be seen.

 

For example this one: 

 

attachicon.gifKnipsel.PNG

 

I tried to found out the name of this object but couldn't find the name. Any suggestions?

 

Here a more detailed of that object:

https://apod.nasa.go..._flux_ederL.jpg

Here's the annotated image from PI, looks like it is PGC28757

 

Image15 Annotated

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#8 Traveler

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Posted 24 December 2019 - 12:47 AM

Yes that's the name. Here some reference::

 

"PGC 28757 (= Holmberg IX, a companion of M81)
A magnitude 14.3 irregular galaxy (type Im?) in Ursa Major (RA 09 57 32.0, Dec +69 02 46)
Physical Information: The recessional velocity of PGC 28757 is only 45 km/sec, far too small in comparison to peculiar (non-Hubble expansion) velocities to be of any use in determining its distance. Redshift-independent distance estimates range from 8.5 to 32.5 million light years, with the most commonly accepted value being 11 to 12 million light years, as it is believed to be a satellite of approximately 12 million light year distant NGC 3031 (= M81). Given that and its apparent size of ? arcmin, the galaxy is about ? thousand light years across. It is believed that most of the stars in the dwarf galaxy (and the galaxy itself) were created as a result of a close encounter between M81, M82 and NGC 3077 between 200 and 300 million years ago. That interaction tore some one of the older stars from one or more of the galaxies and triggered a wave of intense star formation that resulted in most of the stars now visible in PGC 28757, and is still continuing in the region between it and M81 at a slower rate, as evidenced by a "bluish fuzz" in the region near the two galaxies, which consists of newly formed stars, but too few of them to be easily imaged."

 

Source:  https://cseligman.co...tlas/pgc28a.htm


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#9 SeymoreStars

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Posted 24 December 2019 - 12:54 AM

Thanks Traveler, people like you motivate me do better.

 

And thanks to everyone for you kind comments!!



#10 astrovienna

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Posted 24 December 2019 - 09:00 AM

Looks great, Steve.  Lots of faint fuzzies in the background.  And thanks to Traveler for the link to cseligman's site.  I always forget that he has details on some PGC objects.

 

Kevin



#11 rnyboy

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Posted 22 March 2020 - 09:44 AM

I've been trying to get Bode's galaxy with my NexStar 6SE and a 0.5x reducer postioned about 45mm away from the sensor surface.  This is what I obtained last night using SharpCap with 2s exposures, gain 500, 1000 frames, and using my ZWO ASI385MC with an IR-cut and a Moon/Sky Glow filter in the optical stack.  I really need to try Bode's with out the filters just to see how much the extra light helps.

 

My typical gain is 350 but couldn't get SharpCap to livestack at that.  The livestack image really didn't give me any detail in the spirals.

 

I processed the pngs in Deep Sky Stacker and a little bit of Photoshoping after that.  It can't compete with SeymoreStars very nice image but I'm happy with mine as a noob at EAA with only a 6" SCT.

 

NX0UC7M.png


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#12 SeymoreStars

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Posted 22 March 2020 - 09:53 AM

I've been trying to get Bode's galaxy with my NexStar 6SE and a 0.5x reducer postioned about 45mm away from the sensor surface.  This is what I obtained last night using SharpCap with 2s exposures, gain 500, 1000 frames, and using my ZWO ASI385MC with an IR-cut and a Moon/Sky Glow filter in the optical stack.  I really need to try Bode's with out the filters just to see how much the extra light helps.

 

My typical gain is 350 but couldn't get SharpCap to livestack at that.  The livestack image really didn't give me any detail in the spirals.

 

I processed the pngs in Deep Sky Stacker and a little bit of Photoshoping after that.  It can't compete with SeymoreStars very nice image but I'm happy with mine as a noob at EAA with only a 6" SCT.

 

NX0UC7M.png

Nice job Rochester!!



#13 Jim Thommes

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Posted 25 March 2020 - 04:50 PM

Nice image Steve.


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