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Old 07-06-2021, 07:25 PM
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Atmos (Colin)
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OMGega Centauri

Had a nice Saturday night a week or so ago, camped in the new tent and braved the cold.... Along with the cold was some pretty darn good seeing too. This is now equal sharpest stacked data I've been able to capture, 26 minutes under 1.1" seeing. Collimation is slightly off but it isn't really noticeable (is noticeable on individual subs).

Link to 0.4"/pixel resolution

Pretty happy with the performance of the ol' Mewlon 250 so far, seems to be a good match with the ASI094 when the skies play nice.
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Old 07-06-2021, 07:30 PM
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Brilliant Colin. The 1.1” seeing really shows.
Geoff
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Old 08-06-2021, 09:11 AM
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multiweb (Marc)
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That's excellent Colin. The core looks like a hubble shot up close with all those little blue stars. Really fine.
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Old 08-06-2021, 09:21 AM
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Sensational Colin. Look at how well those core stars are resolved. Wow, that is sharp.

Greg.
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Old 08-06-2021, 10:19 AM
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They're all there. Well done on an excellent image Colin

Best
JA
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Old 08-06-2021, 02:03 PM
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Atmos (Colin)
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Quote:
Originally Posted by Geoff45 View Post
Brilliant Colin. The 1.1” seeing really shows.
Geoff
I’ve attempted this globular with most of my previous telescopes and never been able to get close to what the Mewlon has been able to do!

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Originally Posted by multiweb View Post
That's excellent Colin. The core looks like a hubble shot up close with all those little blue stars. Really fine.
Thanks Marc, haven’t quite been game to compare it against Hubble

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Originally Posted by gregbradley View Post
Sensational Colin. Look at how well those core stars are resolved. Wow, that is sharp.

Greg.
Thanks Greg, it wasn’t until I compared it against a Chart-32 image that I realised just HOW GOOD their seeing is! 32” aperture helps too

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They're all there. Well done on an excellent image Colin

Best
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Thanks JA
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Old 08-06-2021, 02:04 PM
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Anyone spot the 3 red stars? (at about 4oclock)

Good capture Colin
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Old 08-06-2021, 05:16 PM
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Hey Col, Nice work!
Can you (in layman's terms) explain the most relevant numbers table in the second photo?
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Old 08-06-2021, 05:54 PM
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Hey Col, Nice work!
Can you (in layman's terms) explain the most relevant numbers table in the second photo?
He is imaging at an image scale of 0.4"/pix, his software is telling him the max FWHM (of that star with square around it) in the x direction, is 2.94pix, so we have 2.94 X 0.4 = 1.176" and a FWHM in the y direction of 2.58pix or 2.58 X 0.4 = 1.032" so suggests, essentially pretty close to 1 arc sec seeing...very cool

Great shot Col

Mike
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Old 08-06-2021, 06:43 PM
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Quote:
Originally Posted by Andy01 View Post
Hey Col, Nice work!
Can you (in layman's terms) explain the most relevant numbers table in the second photo?
Quote:
Originally Posted by strongmanmike View Post
He is imaging at an image scale of 0.4"/pix, his software is telling him the max FWHM (of that star with square around it) in the x direction, is 2.94pix, so we have 2.94 X 0.4 = 1.176" and a FWHM in the y direction of 2.58pix or 2.58 X 0.4 = 1.032" so suggests, essentially pretty close to 1 arc sec seeing...very cool

Great shot Col

Mike
Mike got it in one. The highlighted numbers are the reference stars and the box says that the average of 6 stars have a diameter of approx 2.7 pixels at 0.4"/pixel or about 1.1" seeing.
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Old 08-06-2021, 10:27 PM
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Spectacular resolution! ~1" seeing in this part of the world is very unusual.
As good as it gets - the seeing and the image. Very nicely rendered
Mark
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Old 09-06-2021, 08:36 AM
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Quote:
Originally Posted by strongmanmike View Post
He is imaging at an image scale of 0.4"/pix, his software is telling him the max FWHM (of that star with square around it) in the x direction, is 2.94pix, so we have 2.94 X 0.4 = 1.176" and a FWHM in the y direction of 2.58pix or 2.58 X 0.4 = 1.032" so suggests, essentially pretty close to 1 arc sec seeing...very cool

Great shot Col

Mike


Quote:
Originally Posted by Atmos View Post
Mike got it in one. The highlighted numbers are the reference stars and the box says that the average of 6 stars have a diameter of approx 2.7 pixels at 0.4"/pixel or about 1.1" seeing.
Cool, that makes sense now, cheers Mike & Col
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Old 09-06-2021, 09:44 AM
Alchemy (Clive)
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Pretty happy with the performance of the ol' Mewlon 250 so far, seems to be a good match with the ASI094 when the skies play nice.

I’m assuming the ASI094 is a colour camera ?….. this image is super sharp and crispy. Who needs a mono camera when you can do this.
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Old 09-06-2021, 07:27 PM
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Atmos (Colin)
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I’m assuming the ASI094 is a colour camera ?….. this image is super sharp and crispy. Who needs a mono camera when you can do this.
Taken with a OSC! At the end of the day... seeing is King over all of us!
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