View Full Version here: : OMGega Centauri
Atmos
07-06-2021, 07:25 PM
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 (https://cdn.astrobin.com/images/57732/2021/6c9c91ea-c3d8-40f7-a63d-bbb850fe8f08.jpg)
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.
Geoff45
07-06-2021, 07:30 PM
Brilliant Colin. The 1.1” seeing really shows.
Geoff
multiweb
08-06-2021, 09:11 AM
That's excellent Colin. The core looks like a hubble shot up close with all those little blue stars. Really fine. :thumbsup::thumbsup::thumbsup:
gregbradley
08-06-2021, 09:21 AM
Sensational Colin. Look at how well those core stars are resolved. Wow, that is sharp.
Greg.
They're all there:D. Well done on an excellent image Colin:thumbsup:
Best
JA
Atmos
08-06-2021, 02:03 PM
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!
Thanks Marc, haven’t quite been game to compare it against Hubble :lol:
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 ;)
Thanks JA :)
Anyone spot the 3 red stars? (at about 4oclock)
Good capture Colin :thumbsup:
Andy01
08-06-2021, 05:16 PM
Hey Col, Nice work! :thumbsup:
Can you (in layman's terms) explain the most relevant numbers table in the second photo? :question:
strongmanmike
08-06-2021, 05:54 PM
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 :D
Great shot Col :thumbsup:
Mike
Atmos
08-06-2021, 06:43 PM
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.
markas
08-06-2021, 10:27 PM
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:thumbsup::thumbsup:
Mark
Andy01
09-06-2021, 08:36 AM
Cool, that makes sense now, cheers Mike & Col :thumbsup:
Alchemy
09-06-2021, 09:44 AM
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.
Atmos
09-06-2021, 07:27 PM
Taken with a OSC! At the end of the day... seeing is King over all of us!
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