Struggling to pull the detail out in ImPPG. It isn't visible on the monitor or in Autostakkert.
At least we are having some sunshine without the gales. Seeing improving slowly.
Big bright flare at 10.48.
4.11.2020 AR2781 in modest seeing.
- Rusted
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4.11.2020 AR2781 in modest seeing.
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 4.11.2020 AR2781 in modest seeing.
Indeed a fab flare images and the detail is well-fab too.
Thanks Rusted for sharing
Terry
Thanks Rusted for sharing
Terry
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Re: 4.11.2020 AR2781 in modest seeing.
Excellent images, Rusted. You caught the action really well.
Franco
Franco
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Re: 4.11.2020 AR2781 in modest seeing.
Hi Chris,
Very good
Very good
regards Rainer
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
Observatorio Real de 14
San Luis Potosi Mexico
North 22° West 101°
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Re: 4.11.2020 AR2781 in modest seeing.
Nice capture! Great catch on the flare.
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Celestron AstroMaster Alt/Az Mount
Meade Coronado SolarMax II 60 DS
Meade Coronado SolarMax II 90 DS
Meade Coronado AZS Alt/Az Mount
Astro-Tech AT72EDII with Altair solar wedge
Celestron NexStar 102GT with Altair solar wedge
Losmandy AZ8 Alt/Az Mount
Sky-Watcher AZGTI Alt-Az GoTo mount
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- Rusted
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Re: 4.11.2020 AR2781 in modest seeing.
Thank you all.
I just wish these images had been better. Fierce, thermal 'boiling' all day.
Flares can be a "nuisance" for overwhelming an image with a blank white area.
It just looks so wrong!
The spot group is well seen in white light.
I just wish these images had been better. Fierce, thermal 'boiling' all day.
Flares can be a "nuisance" for overwhelming an image with a blank white area.
It just looks so wrong!
The spot group is well seen in white light.
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 4.11.2020 AR2781 in modest seeing.
Nice shots! Did you ever try clocking the etalon?
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Re: 4.11.2020 AR2781 in modest seeing.
Thanks Mark.
The Teflon tape wrap of the etalon elements has helped even out the illumination but the appearance is strangely flat.
I have tried repeated retuning and physical tilting but it hasn't helped so far.
I tried rotating the full aperture D-ERF on the OTA. No change.
Then I rotated the entire etalon + filter stack + camera via the FT focuser. No change.
Rotated the ZWO '174 camera alone. No change.
It may be the recent poor seeing is masking any obvious improvement in the highly magnified, monitor image.
I ought to try rotating the etalon and BF independently of each other and of the camera.
Not so easy to do this "live" without losing the image.
Using exactly the same section of the disk for comparison all but impossible.
The Teflon tape wrap of the etalon elements has helped even out the illumination but the appearance is strangely flat.
I have tried repeated retuning and physical tilting but it hasn't helped so far.
I tried rotating the full aperture D-ERF on the OTA. No change.
Then I rotated the entire etalon + filter stack + camera via the FT focuser. No change.
Rotated the ZWO '174 camera alone. No change.
It may be the recent poor seeing is masking any obvious improvement in the highly magnified, monitor image.
I ought to try rotating the etalon and BF independently of each other and of the camera.
Not so easy to do this "live" without losing the image.
Using exactly the same section of the disk for comparison all but impossible.
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
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Re: 4.11.2020 AR2781 in modest seeing.
Hi Mark.
I had a chance to try this today during appalling seeing conditions.
Rotating the etalon independent of the camera rotates off axis illumination.
Rotating the camera alone rotates its own off axis illumination.
So, a bit of contra-rotation and I may have have nulled the off axis illumination.
I'll need better conditions to be sure this doesn't push anything off-band.
Which is exactly what it looked like on today's [very poor] images before the rotation exercise.
Lighter and NO detail to the West! Darker and surprising detail to the east.
What do you think about this?
http://fullerscopes.blogspot.dk/
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.
H-alpha: Baader 160mm D-ERF, iStar 150/10 H-alpha objective, 2" Baader 35nm H-a, 2" Beloptik KG3,
Lunt 60MT etalon, Lunt B1200S2 BF, Assorted T-S GPCs or 2x "Shorty" Barlow, ZWO ASI174.