Search found 14305 matches
- Tue Apr 13, 2021 10:22 am
- Forum: This is SolarChat !!
- Topic: Solar images in Ha 13th April 2021
- Replies: 7
- Views: 303
Solar images in Ha 13th April 2021
Hi Some solar images in Ha, captured on my 150mm/DS Lunt 35 mod. Basler acA1920-155 um camera 2.7x PM Full disk DS Lunt 60, Basler acA2440-75 um, 1.5x Barlow, 2 pane mosaic https://live.staticflickr.com/65535/51114055905_d4cc37bf1a_k.jpg 20210413_Ha_FD_mono by Stuart Green , on Flickr https://live.s...
- Tue Apr 13, 2021 9:47 am
- Forum: This is SolarChat !!
- Topic: Large prom today 13th April 2021
- Replies: 5
- Views: 234
Large prom today 13th April 2021
Super long prom today! Ha on a 150mm'Lunt 35 mod. 2.7x PM Basler acA1920-155um I had to push the gain to get a reasonable image of this faint prom without overly long exposure times. https://live.staticflickr.com/65535/51112998569_d02bd05cd6_k.jpg 20210413_Ha_Prom_Mono by Stuart Green , on Flickr Th...
- Tue Apr 13, 2021 6:22 am
- Forum: This is SolarChat !!
- Topic: Sol from the 11th of April 2021.
- Replies: 5
- Views: 136
Re: Sol from the 11th of April 2021.
Super crisp proms, Eric. Very nice.
Stu.
Stu.
- Tue Apr 13, 2021 6:21 am
- Forum: This is SolarChat !!
- Topic: Calcium Sun 12th April
- Replies: 8
- Views: 215
Re: Calcium Sun 12th April
Excellent images, Mark, as usual.
Enjoy your time on the canal. Hopefully the weather will hold both for imaging and relaxing outdoors with a few beers.
Stu.
Enjoy your time on the canal. Hopefully the weather will hold both for imaging and relaxing outdoors with a few beers.
Stu.
- Tue Apr 13, 2021 6:13 am
- Forum: This is SolarChat !!
- Topic: Prominence 12.04.21
- Replies: 10
- Views: 331
Re: Prominence 12.04.21
Just a few frames, Ivan, but at least it provides a good impression of solar dynamics.
Stu.
Stu.
- Tue Apr 13, 2021 6:07 am
- Forum: This is SolarChat !!
- Topic: Sol from the 10th of April 2021.
- Replies: 5
- Views: 123
Re: Sol from the 10th of April 2021.
Superb prom images, Eric. Very nice indeed.
Stu.
Stu.
- Tue Apr 13, 2021 6:02 am
- Forum: This is SolarChat !!
- Topic: April 12 2021 Observations. Visual and Imaging.
- Replies: 8
- Views: 246
Re: April 12 2021 Observations. Visual and Imaging.
Nice report and beautiful images, James.
Stu.
Stu.
- Tue Apr 13, 2021 5:58 am
- Forum: This is SolarChat !!
- Topic: Monday Sun 12th April 2021
- Replies: 7
- Views: 200
Re: Monday Sun 12th April 2021
Many thanks, everyone. Back to a covering of cloud today
Stu
Stu
- Mon Apr 12, 2021 4:45 pm
- Forum: This is SolarChat !!
- Topic: Monday Sun 12th April 2021
- Replies: 7
- Views: 200
Monday Sun 12th April 2021
We're having quite a run of beautiful weather here, albeit a bit on the cold side with a covering of morning ground frost, so yet another opportunity for solar imaging this morning. FDs again in Ha and Ca II K. The region that hasn't quite developed into a sunspot (still a collection of pores) is lo...
- Mon Apr 12, 2021 4:32 pm
- Forum: This is SolarChat !!
- Topic: Sunday Sun 11th April 2021
- Replies: 11
- Views: 398
Re: Sunday Sun 11th April 2021
Many thanks, everyone. Really appreciated.
Stu.
Stu.
- Sun Apr 11, 2021 4:40 pm
- Forum: This is SolarChat !!
- Topic: AR12814 in CaK - 11th April
- Replies: 28
- Views: 803
Re: AR12814 in CaK - 11th April
Beautiful images, Mark. Really excellent resolution. Boiling froth!!
Sorry to hear the ISS transit capture was unsuccessful (this time).
Stu.
Sorry to hear the ISS transit capture was unsuccessful (this time).
Stu.
- Sun Apr 11, 2021 4:12 pm
- Forum: This is SolarChat !!
- Topic: Sunday Sun 11th April 2021
- Replies: 11
- Views: 398
Sunday Sun 11th April 2021
Another beautiful day with an almost cloudless start, so another opportunity for solar imaging in Ha and Ca II K. With half decent seeing (for a nice change) I even tried a close up view of the bright plage area towards the east. Hydrogen Alpha FDs in Mono and Colour: Lunt 60 Basler acA2440-75 um 1....
- Sun Apr 11, 2021 7:51 am
- Forum: This is SolarChat !!
- Topic: Ca II K and Ha FDs 9th April 2021
- Replies: 8
- Views: 338
Re: Ca II K and Ha FDs 9th April 2021
Many thanks, everyone. Much appreciated.
Stu.
Stu.
- Sat Apr 10, 2021 2:48 pm
- Forum: This is SolarChat !!
- Topic: Ha-sun, April 8th, 2021
- Replies: 10
- Views: 331
Re: Ha-sun, April 8th, 2021
Very nice images, Jozef, in challenging seeing conditions.
Stu.
Stu.
- Sat Apr 10, 2021 2:44 pm
- Forum: This is SolarChat !!
- Topic: FD's of the Sun in WL, 9 April
- Replies: 10
- Views: 355
Re: FD's of the Sun in WL, 9 April
Very nice WL images, Ivan.
A warm welcome. Great to have you on board.
Stu.
A warm welcome. Great to have you on board.
Stu.
- Sat Apr 10, 2021 2:40 pm
- Forum: This is SolarChat !!
- Topic: Cak Sun 10th April
- Replies: 9
- Views: 295
Re: Cak Sun 10th April
A cracking set of images, Mark. I got lucky with the weather this morning as well; sunny and dry for imaging and painting some garden features. It's cloudy and raining now. It just goes to show, you've got to collect data whilst you can. You're getting great prom and limb spicule definition with you...
- Sat Apr 10, 2021 2:02 pm
- Forum: This is SolarChat !!
- Topic: Some sunny views in Ha and Ca II K 10th April 2021
- Replies: 9
- Views: 310
Some sunny views in Ha and Ca II K 10th April 2021
FDs in Ha and Ca II K plus a few shots in Ha of the main proms around the limb. Additionally I took a few images in sequence in order to make a mosaic of the chromosphere in the region around the main filament. There's also a closer view of this region. These close views and proms were captured on t...
- Fri Apr 09, 2021 6:11 pm
- Forum: This is SolarChat !!
- Topic: Ca II K and Ha FDs 9th April 2021
- Replies: 8
- Views: 338
Ca II K and Ha FDs 9th April 2021
A couple of quick FDs captured at lunchtime today in Ca II K and HA. The long filament visible in HA is a little disjointed, but remains pretty impressive. https://live.staticflickr.com/65535/51106231530_3d581bc9ce_o.png 20210409_CaK_FD_Mono by Stuart Green , on Flickr https://live.staticflickr.com/...
- Fri Apr 09, 2021 6:05 pm
- Forum: This is SolarChat !!
- Topic: Sun in Ha and CaK 7th April 2021
- Replies: 12
- Views: 459
Re: Sun in Ha and CaK 7th April 2021
Many thanks, guys. Much appreciated.
Stu.
Stu.
- Fri Apr 09, 2021 6:34 am
- Forum: This is SolarChat !!
- Topic: halpha sun on 8 April
- Replies: 12
- Views: 429
Re: halpha sun on 8 April
Beautifully even disks, Stephane. The second image is especially good.
Stu.
Stu.
- Fri Apr 09, 2021 6:26 am
- Forum: This is SolarChat !!
- Topic: April 06 2021 - Something different!
- Replies: 14
- Views: 469
Re: April 06 2021 - Something different!
Bullseye....right down the middle. That’s a fantastic transit, Simon. Very nice capture. Congratulations on SPoD.
Stu.
Stu.
- Fri Apr 09, 2021 6:18 am
- Forum: This is SolarChat !!
- Topic: Sun in Ha and CaK 7th April 2021
- Replies: 12
- Views: 459
Re: Sun in Ha and CaK 7th April 2021
Many thanks, Alexandra. The new Lunt front etalon has certainly made a huge difference, especially in combination with the Coronado BF. Triple stacking gets close to optimal narrow bandwidth to meet my requirements for a much more even disk, including both surface and prom details in one take. :) Stu.
- Thu Apr 08, 2021 5:36 am
- Forum: This is SolarChat !!
- Topic: April 7 2021 Observations.
- Replies: 11
- Views: 310
Re: April 7 2021 Observations.
Thanks for your report, James.
Stu.
Stu.
- Thu Apr 08, 2021 5:34 am
- Forum: This is SolarChat !!
- Topic: Full disc 07-04-2021
- Replies: 5
- Views: 194
Re: Full disc 07-04-2021
Blank, but very nicely imaged, Rainer.
Stu.
Stu.
- Thu Apr 08, 2021 5:33 am
- Forum: This is SolarChat !!
- Topic: Today's SUN (20210407) | FD images
- Replies: 7
- Views: 408
Re: Today's SUN (20210407) | FD images
Beautifully presented, as always, Pedro.
Stu.
Stu.
- Thu Apr 08, 2021 5:30 am
- Forum: This is SolarChat !!
- Topic: Sun in Ha and CaK 7th April 2021
- Replies: 12
- Views: 459
Re: Sun in Ha and CaK 7th April 2021
Many thanks, everyone. Much appreciated. Back to clouds and rain here.
Stu.
Stu.
- Thu Apr 08, 2021 5:28 am
- Forum: This is SolarChat !!
- Topic: H alpha prominence from April 6
- Replies: 14
- Views: 490
Re: H alpha prominence from April 6
Excellent, Peter.
Great to see you imaging again.
Stu.
Great to see you imaging again.
Stu.
- Thu Apr 08, 2021 5:28 am
- Forum: SPoD Archive
- Topic: H alpha prominence from April 6
- Replies: 14
- Views: 577
Re: H alpha prominence from April 6
Excellent, Peter.
Great to see you imaging again.
Stu.
Great to see you imaging again.
Stu.
- Wed Apr 07, 2021 11:19 am
- Forum: This is SolarChat !!
- Topic: Sun in Ha and CaK 7th April 2021
- Replies: 12
- Views: 459
Sun in Ha and CaK 7th April 2021
A couple of disks in Ha and CaK showing the Sun as of 7th April 2021. The seeing conditions were better than in recent days, but closer views were again made quite a challenge with lots of fine scale shimmering. I made one image in Ha of a small magnetically disturbed region. Other attempts just end...
- Wed Apr 07, 2021 6:53 am
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: IS MY PRESSER TUNER OK
- Replies: 41
- Views: 4055
Re: IS MY PRESSER TUNER OK
Equalising the pressure has to be the starting point if this hasn’t already been done. As our ambient air pressure changes with passing weather systems the chamber pressure must be reset if it goes outside the range that can be adjusted and compensated for on the threads. Who knows what the pressure...
- Tue Apr 06, 2021 7:33 pm
- Forum: This is SolarChat !!
- Topic: 6th April 2021 Ca-K line
- Replies: 22
- Views: 574
Re: 6th April 2021 Ca-K line
Nice calcium proms, Nigella.
Stu.
Stu.
- Tue Apr 06, 2021 7:19 pm
- Forum: This is SolarChat !!
- Topic: 30 March big prom with TOA150 DayStar 0.6A
- Replies: 9
- Views: 393
Re: 30 March big prom with TOA150 DayStar 0.6A
Superb, Christian. Looks like you had periods of excellent seeing.
Stu.
Stu.
- Tue Apr 06, 2021 7:14 pm
- Forum: Commercial Solar Filters/Cameras/Hardware
- Topic: IS MY PRESSER TUNER OK
- Replies: 41
- Views: 4055
Re: IS MY PRESSER TUNER OK
Hi Peter, I have a pressure tuned Lunt 60. As has been said, unscrew the tuning knob until you hear air entering/leaving the chamber, then screw it all the way in and start tuning by unscrewing it slowly. You should see surface details coming into view. If the image is too bright, reduce the exposur...
- Tue Apr 06, 2021 6:57 pm
- Forum: SPoD Archive
- Topic: April 5 sun
- Replies: 9
- Views: 477
Re: April 5 sun
Nicely done, Paul. Beautifully captured burst of activity.
Stu.
Stu.
- Tue Apr 06, 2021 6:57 pm
- Forum: This is SolarChat !!
- Topic: April 5 sun
- Replies: 9
- Views: 263
Re: April 5 sun
Nicely done, Paul. Beautifully captured burst of activity.
Stu.
Stu.
- Tue Apr 06, 2021 6:52 pm
- Forum: This is SolarChat !!
- Topic: Sun in Ha 6th April 2021
- Replies: 8
- Views: 305
Re: Sun in Ha 6th April 2021
Many thanks Terry, Mark and Alexandra.
Stu.
Stu.
- Tue Apr 06, 2021 6:38 pm
- Forum: SPoD Archive
- Topic: Calcium Sun - 6th April
- Replies: 4
- Views: 421
Re: Calcium Sun - 6th April
Really excellent, Mark. Your Tinkering is working wonders. Congrats on SPoD
Stu.
Stu.
- Tue Apr 06, 2021 6:36 pm
- Forum: This is SolarChat !!
- Topic: Sunny 5th April 2021
- Replies: 15
- Views: 430
Re: Sunny 5th April 2021
Very nice, Alexandra. Your HA FDs with the Solarscope are sublime. Nice calcium images too under challenging conditions.
Stu.
Stu.
- Tue Apr 06, 2021 10:53 am
- Forum: This is SolarChat !!
- Topic: Sun in Ha 6th April 2021
- Replies: 8
- Views: 305
Sun in Ha 6th April 2021
Ha FD with my DS Lunt 60 and a closer view of a small magnetically disturbed region captured on my 150mm/DS Lunt 35 mod. The location of this region of chromosphere is shown (red box). https://live.staticflickr.com/65535/51099247875_d39600fe4f_o.png 20210406_Ha_FD_mono by Stuart Green , on Flickr ht...
- Tue Apr 06, 2021 7:05 am
- Forum: This is SolarChat !!
- Topic: A week ago... 3 AR in a row
- Replies: 18
- Views: 476
Re: A week ago... 3 AR in a row
Very fine images, Leo. Beautifully done.
Stu.
Stu.
- Tue Apr 06, 2021 7:02 am
- Forum: This is SolarChat !!
- Topic: Today's SUN (20210405) | LUNT152 H-alpha
- Replies: 7
- Views: 305
Re: Today's SUN (20210405) | LUNT152 H-alpha
Another very successful session, Pedro.
Thanks for sharing.
Stu.
Thanks for sharing.
Stu.
- Tue Apr 06, 2021 7:00 am
- Forum: This is SolarChat !!
- Topic: April 5 2021 Observations
- Replies: 11
- Views: 276
Re: April 5 2021 Observations
Thanks, James.
Stu.
Stu.
- Tue Apr 06, 2021 6:59 am
- Forum: This is SolarChat !!
- Topic: CaK Full Disk 5th April
- Replies: 9
- Views: 277
Re: CaK Full Disk 5th April
Good luck, Mark. I hope the conditions meet your expectations.
Stu.
Stu.
- Tue Apr 06, 2021 6:56 am
- Forum: This is SolarChat !!
- Topic: Sol from the 5th of April 2021.
- Replies: 12
- Views: 319
Re: Sol from the 5th of April 2021.
Very nice, Eric.
Lovely images. Your Ca K images, with proms, are always very impressive.
Stu.
Lovely images. Your Ca K images, with proms, are always very impressive.
Stu.
- Tue Apr 06, 2021 6:54 am
- Forum: This is SolarChat !!
- Topic: CaK Full Disk 5th April
- Replies: 9
- Views: 277
Re: CaK Full Disk 5th April
Really nice results from your experiments, Mark. Beautifully uniform and detailed.
Stu.
Stu.
- Tue Apr 06, 2021 6:49 am
- Forum: This is SolarChat !!
- Topic: Monday Sun 5th April 2021
- Replies: 7
- Views: 236
Re: Monday Sun 5th April 2021
Many thanks, everyone. Much appreciated.
Stu.
Stu.
- Mon Apr 05, 2021 3:36 pm
- Forum: This is SolarChat !!
- Topic: Monday Sun 5th April 2021
- Replies: 7
- Views: 236
Monday Sun 5th April 2021
After a snowy start to the day, the sky changed dramatically and for most of the morning/early afternoon it turned cloudless, rich blue and clear although a little turbulent, resulting in only average seeing, making close views quite a challenge. Anyhow, here's what I got in Ca II K and Ha. First up...
- Mon Apr 05, 2021 6:51 am
- Forum: This is SolarChat !!
- Topic: April 2nd Ha Sun
- Replies: 9
- Views: 254
Re: April 2nd Ha Sun
A very fine set of images, Brian.
Stu.
Stu.
- Mon Apr 05, 2021 6:45 am
- Forum: This is SolarChat !!
- Topic: Sun @ 120mm 4th April
- Replies: 18
- Views: 590
Re: Sun @ 120mm 4th April
A beautiful set of images, Mark.
Stu.
Stu.
- Mon Apr 05, 2021 6:32 am
- Forum: This is SolarChat !!
- Topic: April 4th 2021 - Animation
- Replies: 12
- Views: 363
Re: April 4th 2021 - Animation
Superb animation, Simon. Lots going on there in the prom and an excellent demonstration of just how dynamic the spicule field is within the chromosphere.
Stu.
Stu.