Search found 77 matches

by Astrophil
Wed Feb 20, 2019 1:19 am
Forum: This is SolarChat !!
Topic: Februari 19
Replies: 3
Views: 30

Re: Februari 19

Maurits, Nice images. The surface texture looks good and the prom showed up well. The white ring (dreaded double limb) has been enhanced when the surface is inverted. This can be toned down some by adjusting the curves where it transitions to the inverted surface. The fog around the limb sometimes s...
by Astrophil
Tue Feb 19, 2019 5:55 am
Forum: This is SolarChat !!
Topic: Sol from the 18th of February 2019.
Replies: 7
Views: 38

Re: Sol from the 18th of February 2019.

Stunning images, great detail. Wow!

Phil
by Astrophil
Tue Feb 19, 2019 5:48 am
Forum: This is SolarChat !!
Topic: Solar highlights from Feb. 17, 2019
Replies: 12
Views: 72

Re: Solar highlights from Feb. 17, 2019

Thank you all! I was pleased as to how they turned out as well. I tried to process them a little softer this time but old habits are hard to break.

Phil
by Astrophil
Tue Feb 19, 2019 5:32 am
Forum: This is SolarChat !!
Topic: Feb 16th Session
Replies: 7
Views: 42

Re: Feb 16th Session

Brian, I enjoyed them all. Cool diffraction effect.

Phil
by Astrophil
Tue Feb 19, 2019 5:25 am
Forum: This is SolarChat !!
Topic: 2017 Feb 17. Dark filament through a 6" aperture.
Replies: 7
Views: 64

Re: 2017 Feb 17. Dark filament through a 6" aperture.

Valery,
Superb images and processing. These images give me a good idea of the resolution to expect from a 6" aperture. Thanks for posting them.

Phil
by Astrophil
Mon Feb 18, 2019 3:26 am
Forum: This is SolarChat !!
Topic: Solar highlights from Feb. 17, 2019
Replies: 12
Views: 72

Solar highlights from Feb. 17, 2019

I had some unexpectedly nice weather and good seeing today so out I went. Using the Qunatum Six and Solar Spectrum, I captured todays highlights. The surface images were taken with and without a focal reducer. I didn't see much difference in detail. Also played around with the prom images. Phil 2019...
by Astrophil
Sun Feb 17, 2019 8:49 pm
Forum: This is SolarChat !!
Topic: High Res Filament & Plage, Full Disc | HA | Feb 17th 2019
Replies: 8
Views: 68

Re: High Res Filament & Plage, Full Disc | HA | Feb 17th 2019

Really nice Marty, looks like the FD's are working well also.

Phil
by Astrophil
Sun Feb 17, 2019 8:44 pm
Forum: This is SolarChat !!
Topic: Feb 14, 15 more testing
Replies: 10
Views: 100

Re: Feb 14, 15 more testing

Thanks Alexandra, I tried to keep them on the softer side. (Mainly to hide problems) Bart, the PST is proving problematic and has been removed from the system for a while. A circular polarizer helped with the reflections but banding, distortion, and inconsistent tuning still remains. I will be askin...
by Astrophil
Sat Feb 16, 2019 5:50 pm
Forum: This is SolarChat !!
Topic: Feb 14, 15 more testing
Replies: 10
Views: 100

Re: Feb 14, 15 more testing

Thanks Marty, Eric, Mark, Franco, and Brian. Sometimes interesting things happen while testing.

Phil
by Astrophil
Sat Feb 16, 2019 5:44 pm
Forum: This is SolarChat !!
Topic: Feb 16 - The Dinosaur has moved
Replies: 8
Views: 84

Re: Feb 16 - The Dinosaur has moved

Yes, many strange creatures on the Sun but that the first dinosaur I've seen. Good one Paul.

Phil
by Astrophil
Sat Feb 16, 2019 5:39 pm
Forum: This is SolarChat !!
Topic: Sol from the 15th of February 2019 and its reflection.
Replies: 10
Views: 94

Re: Sol from the 15th of February 2019 and its reflection.

Eric, great images once again. I've been studying the Moon image and love the contrast. I guess I'm a similar vintage ( tri x and copy film with hi contrast paper). Contrast is nice in high sun conditions and really accentuates the ray structures. Lots of detail in the usual suspects as well.

Phil
by Astrophil
Sat Feb 16, 2019 5:30 pm
Forum: This is SolarChat !!
Topic: What's wrong???
Replies: 36
Views: 247

Re: What's wrong???

Maurits, both images look good to me. I like them! Lots of nice detail too. I know these were test shots but I was thinking that a flat frame correction might have evened out the brighter corners. I have had some success flattening limb shots by slightly moving toward the center and defocusing to ma...
by Astrophil
Sat Feb 16, 2019 12:27 am
Forum: This is SolarChat !!
Topic: Feb 14, 15 more testing
Replies: 10
Views: 100

Feb 14, 15 more testing

Here are a few shots using the Quantum Six and Solar Spectrum with more testing with the addition of a PST etalon. Adding a PST to the system is not easy and I have a lot of respect for those who have had success double stacking them. Yesterday a region of increased activity crept over the limb and ...
by Astrophil
Fri Feb 15, 2019 5:07 am
Forum: This is SolarChat !!
Topic: Proms Feb 6,7,12 + Question
Replies: 6
Views: 64

Re: Proms Feb 6,7,12 + Question

Thank you for sharing your preferences. Most helpful. I guess my old eyes tend to push the sharpness further than needed. Might be time for some new glasses.

Phil
by Astrophil
Thu Feb 14, 2019 8:44 pm
Forum: This is SolarChat !!
Topic: Sol from the 13th of February 2019.
Replies: 9
Views: 74

Re: Sol from the 13th of February 2019.

Eric,

Even through less than ideal seeing those disks look fantastic. Man, can you catch proms!

Phil
by Astrophil
Thu Feb 14, 2019 3:23 am
Forum: This is SolarChat !!
Topic: The effect of a circular polarizer in a double stack
Replies: 17
Views: 463

Re: The effect of a circular polarizer in a double stack

See if this adds to the confusion. If the circular polarizer (linear polarizer+ 1/4 wave plate) is looked through at a linear or elliptical polarized source and rotated, the brightness will vary if the linear polarizer side of the CP is facing toward the source. Not so much variation if the 1/4 wave...
by Astrophil
Thu Feb 14, 2019 2:11 am
Forum: This is SolarChat !!
Topic: Big Bright Proms & Plage | 150mm HA | Feb 8th 2019
Replies: 16
Views: 201

Re: Big Bright Proms & Plage | 150mm HA | Feb 8th 2019

Marty, great images. Nice transit, I'll bet that surprised you.

Phil
by Astrophil
Thu Feb 14, 2019 2:04 am
Forum: This is SolarChat !!
Topic: Proms Feb 6,7,12 + Question
Replies: 6
Views: 64

Proms Feb 6,7,12 + Question

Below are some early test images taken while experimenting with the possibility of double stacking a PST etalon with a Solar Spectrum SO1.5 0.3A. Much work is still to be done but looks promising. The last image is from a small Questar stopped down to 85mm and a Quark Combo. Question I am curious as...
by Astrophil
Sun Feb 03, 2019 7:49 pm
Forum: This is SolarChat !!
Topic: CaK, 03022019
Replies: 17
Views: 335

Re: CaK, 03022019

Bart, both images are great and I too like to see the experimentation.

Phil
by Astrophil
Sun Feb 03, 2019 7:39 pm
Forum: This is SolarChat !!
Topic: Full Disk 2/2/19
Replies: 8
Views: 172

Re: Full Disk 2/2/19

Impressive!

Phil
by Astrophil
Sun Feb 03, 2019 7:35 pm
Forum: This is SolarChat !!
Topic: Sunday Sun 3rd Feb 2019
Replies: 13
Views: 223

Re: Sunday Sun 3rd Feb 2019

Stu, very nice images. Glad you got some sun, could you send a little my way.

Phil
by Astrophil
Sun Feb 03, 2019 7:30 pm
Forum: This is SolarChat !!
Topic: Small scale rapid changes in the solar chromosphere. 280mm scope.
Replies: 10
Views: 314

Re: Small scale rapid changes in the solar chromosphere. 280mm scope.

Valery,
Very detailed images and excellent processing makes it easy to see the differences two minutes can make. A visual merge of the images show very little has remained stationary. This illustrates why video captures should be kept short at this scale.
Thanks,
Phil
by Astrophil
Sun Feb 03, 2019 7:21 pm
Forum: This is SolarChat !!
Topic: New Year, New Setup & the Blocking Filter Experiment - 3rd February
Replies: 22
Views: 449

Re: New Year, New Setup & the Blocking Filter Experiment - 3rd February

Mark, Looks like that's going to be a great scope for FD images with the new camera. The scope's history makes it very special as well. Congratulations on the acquisition. I think we all are eagerly awaiting additional images. Is it just me or does the image showing the finder shoes have the Chromos...
by Astrophil
Fri Feb 01, 2019 12:46 am
Forum: This is SolarChat !!
Topic: Sol from the 28th and 29th of January 2019.
Replies: 9
Views: 194

Re: Sol from the 28th and 29th of January 2019.

All Excellent images, Eric. I've been studying them for a while and really enjoy the ones with the AR so close to the limb. You were in the right place at the right time. Thanks

Phil
by Astrophil
Wed Jan 30, 2019 6:08 pm
Forum: Solar Scope Modifications
Topic: PST Etalon with a Quark, Log & Results
Replies: 105
Views: 3574

Re: PST Etalon with a Quark, Log & Results

Marty, I'm sure you get the C8 working well. Looking forward to seeing your results.

Phil