Search found 1041 matches
- Fri Jun 05, 2020 11:01 am
- Forum: This is SolarChat !!
- Topic: An enjoyable Sun, finally
- Replies: 15
- Views: 826
An enjoyable Sun, finally
It seems that the dark ages of the solar minimum are really approaching the end. This morning I was very happy to see a spot with a well developed penumbra with its Wilson-effect appearance plus some trailing pores in a large facular area. Seeing is bad (yesterday's weather was rainy and stormy) but...
- Wed Jun 03, 2020 9:31 am
- Forum: This is SolarChat !!
- Topic: Huge Prom today
- Replies: 9
- Views: 607
Re: Huge Prom today
wow... really huge... just today that I returned in office from three months lockdown
- Wed Jun 03, 2020 9:29 am
- Forum: This is SolarChat !!
- Topic: 31May - HA and Tinkering with C11 CAK
- Replies: 41
- Views: 4022
Re: 31May - HA and Tinkering with C11 CAK
It could be the mirror inside the diagonal which introduce some tilting. Alfred, to use your PM before the BF you need an adapter like this one . Just screw the T2 adapter of the PM in the rear thread of the T/2" adapter then insert the BF tube in the 2" holder. At the distance of the came...
- Wed Jun 03, 2020 9:03 am
- Forum: This is SolarChat !!
- Topic: Large prom and active region from June 2
- Replies: 13
- Views: 779
Re: Large prom and active region from June 2
Impressive detail indeed!
- Wed Jun 03, 2020 9:01 am
- Forum: This is SolarChat !!
- Topic: EGRAY OBSERVATORY - Tuesday 2nd June 2020 - Ha & Cal-K
- Replies: 10
- Views: 626
Re: EGRAY OBSERVATORY - Tuesday 2nd June 2020 - Ha & Cal-K
You captured the prominence well.
- Wed Jun 03, 2020 8:01 am
- Forum: SPoD Archive
- Topic: Prominence on the northwest edge today.
- Replies: 9
- Views: 895
Re: Prominence on the northwest edge today.
Impressive, great colour rendition!
- Wed Jun 03, 2020 8:01 am
- Forum: This is SolarChat !!
- Topic: Prominence on the northwest edge today.
- Replies: 14
- Views: 912
Re: Prominence on the northwest edge today.
Impressive, great colour rendition!
- Wed Jun 03, 2020 8:00 am
- Forum: This is SolarChat !!
- Topic: Limb proms of June 2
- Replies: 15
- Views: 996
Re: Limb proms of June 2
Thanks to all for your kind comments
- Tue Jun 02, 2020 2:48 pm
- Forum: This is SolarChat !!
- Topic: AR12764 and Proms in Ha 1st June
- Replies: 12
- Views: 747
Re: AR12764 and Proms in Ha 1st June
Fine gallery, Mark, good job !
- Tue Jun 02, 2020 2:45 pm
- Forum: This is SolarChat !!
- Topic: Limb proms of June 2
- Replies: 15
- Views: 996
Re: Limb proms of June 2
Thanks for your comments. I add the following image of this afternoon 2020-06-02-1307-RB-CaK-prom.jpg @John - I used of the original BF of the module (you can note the uneven brightness around the disc due to those damned tilted filters) while for the prom I replaced it with the K-line. I am still e...
- Tue Jun 02, 2020 11:44 am
- Forum: This is SolarChat !!
- Topic: Limb proms of June 2
- Replies: 15
- Views: 996
Limb proms of June 2
Since yesterday there are several fine proms to be observed in H-alpha and/or imaged in Ca-K 2020-06-02-0808-RB-CaK-proms.jpg the one on the NW limb is bright and large enough to offer interesting details in calcium light 2020-06-01-0740-RB-CaK-prom.jpg while the NE active region lost its yesterday'...
- Tue Jun 02, 2020 11:31 am
- Forum: This is SolarChat !!
- Topic: The Sun - 2nd June 2020
- Replies: 10
- Views: 713
Re: The Sun - 2nd June 2020
Fine images, with many proms details. Shouldn't they be flipped vertically ?
- Mon Jun 01, 2020 4:27 pm
- Forum: This is SolarChat !!
- Topic: Prominences and ospreys - May 31, 2020
- Replies: 16
- Views: 724
Re: Prominences and ospreys - May 31, 2020
Great images, Franco, ospreys is magnificently captured, good camera indeed.
- Mon Jun 01, 2020 4:24 pm
- Forum: This is SolarChat !!
- Topic: 1st June Sun 2020
- Replies: 10
- Views: 515
Re: 1st June Sun 2020
Fine images, Stu, very detailed discs.
- Sun May 31, 2020 1:16 pm
- Forum: This is SolarChat !!
- Topic: Sun In CaK 30th May
- Replies: 18
- Views: 1142
Re: Sun In CaK 30th May
Magnificent images, Mark, I saved the full disc to use as desktop wallpaper
What a pity that when CaK PST was available I was not interested in solar imaging, your results are science fiction for my Lunt module.
What a pity that when CaK PST was available I was not interested in solar imaging, your results are science fiction for my Lunt module.
- Sat May 30, 2020 11:34 am
- Forum: SPoD Archive
- Topic: Sunshine Friday 29th May - Flares and f40 Experiments
- Replies: 8
- Views: 797
Re: Sunshine Friday 29th May - Flares and f40 Experiments
Thanks for sharing, Mark. Much prefer your images @f/28, it doesn't look to me there is a useful improvement in going to f/40.
Great limb animation too!
Great limb animation too!
- Sat May 30, 2020 11:34 am
- Forum: This is SolarChat !!
- Topic: Sunshine Friday 29th May - Flares and f40 Experiments
- Replies: 25
- Views: 1886
Re: Sunshine Friday 29th May - Flares and f40 Experiments
Thanks for sharing, Mark. Much prefer your images @f/28, it doesn't look to me there is a useful improvement in going to f/40.
Great limb animation too!
Great limb animation too!
- Sat May 30, 2020 11:30 am
- Forum: This is SolarChat !!
- Topic: My first love (C11 30th May)
- Replies: 33
- Views: 1844
Re: My first love (C11 30th May)
Impressive granulation details, Alexandra, H alpha is good too considering the seeing.
My best hours for imaging is from sunrise to 10:00 am in spring and autumn, summer and winter are worst seasons for solar.
My best hours for imaging is from sunrise to 10:00 am in spring and autumn, summer and winter are worst seasons for solar.
- Sat May 30, 2020 11:21 am
- Forum: This is SolarChat !!
- Topic: The Sun in Ca-K - 30th May 2020
- Replies: 13
- Views: 673
Re: The Sun in Ca-K - 30th May 2020
Great processing of those proms, they are really crisp.
- Sat May 30, 2020 11:18 am
- Forum: This is SolarChat !!
- Topic: lucky day ,16 minutes to hide 29 May+NEW color
- Replies: 20
- Views: 1322
Re: lucky day ,16 minutes to hide 29 May+NEW color
Spectacular animation, great work!
- Thu May 28, 2020 6:17 pm
- Forum: This is SolarChat !!
- Topic: C11 attempts 28th May 2020
- Replies: 15
- Views: 920
Re: C11 attempts 28th May 2020
Hi Alexandra
the H alpha images contain many fine details, if you don't mind to send me the raw I'd like to give it a try.
In CaK images some details tend to form short streaks, may be that something in the imagin train was tilted.
the H alpha images contain many fine details, if you don't mind to send me the raw I'd like to give it a try.
In CaK images some details tend to form short streaks, may be that something in the imagin train was tilted.
- Thu May 28, 2020 5:58 pm
- Forum: SPoD Archive
- Topic: 2020-05-28 - AR's (old and new)
- Replies: 10
- Views: 802
Re: 2020-05-28 - AR's (old and new)
Great captures, love how you processed the grey calcium disc
- Thu May 28, 2020 5:58 pm
- Forum: This is SolarChat !!
- Topic: 2020-05-28 - AR's (old and new)
- Replies: 10
- Views: 472
Re: 2020-05-28 - AR's (old and new)
Great captures, love how you processed the grey calcium disc
- Wed May 27, 2020 4:19 pm
- Forum: This is SolarChat !!
- Topic: Today's SUN (20200527) | FD images
- Replies: 16
- Views: 935
Re: Today's SUN (20200527) | FD images
Great discs and video, Pedro, those small filaments have been captured with great contrast
- Wed May 27, 2020 4:15 pm
- Forum: This is SolarChat !!
- Topic: when the sun is crying 25 May + NEW
- Replies: 15
- Views: 963
Re: when the sun is crying 25 May + NEW
Great animations! Are you using IMPPG for alignment ?
- Wed May 27, 2020 9:10 am
- Forum: Solar Software
- Topic: Animations with FireCapture
- Replies: 9
- Views: 3873
Re: Animations with FireCapture
Thanks Paul for help, thanks Alexandra and Mark for your kind comments.
- Tue May 26, 2020 8:09 pm
- Forum: This is SolarChat !!
- Topic: W prom and spotless AR in H-alpha
- Replies: 10
- Views: 663
Re: W prom and spotless AR in H-alpha
Thanks to you all for your comments
- Tue May 26, 2020 8:06 pm
- Forum: Solar Software
- Topic: Animations with FireCapture
- Replies: 9
- Views: 3873
Animations with FireCapture
Today I tried my very first (short) animation, it is very rough and uneven between single images, I hope to do better with practice. 5_2020-05-26-091403-0000_3_grad4_ap58_out crop_aligned.gif I read on the excellent guide " How to image the Sun " that "FireCapture can be set to take a...
- Tue May 26, 2020 2:01 pm
- Forum: This is SolarChat !!
- Topic: small solar animation halpha of May 25th
- Replies: 5
- Views: 390
Re: small solar animation halpha of May 25th
Great, this is the kind of videos that show the Sun a true living creature!
- Tue May 26, 2020 1:41 pm
- Forum: This is SolarChat !!
- Topic: 26May - Experimenting with ARIES D-ERF +C11+ Televue x2.5 barlow - New Image added 27 May
- Replies: 22
- Views: 1034
Re: 26May - Experimenting with ARIES D-ERF +C11+Lunt CAK + PST Yellow + Televue x2.5 barlow
Granulation has been captured very well!
- Tue May 26, 2020 1:36 pm
- Forum: This is SolarChat !!
- Topic: Bank Holiday Monday Overview 25th May
- Replies: 17
- Views: 909
Re: Bank Holiday Monday Overview 25th May
Great images, Mark, CaK is super sharp, really.
- Tue May 26, 2020 1:34 pm
- Forum: This is SolarChat !!
- Topic: W prom and spotless AR in H-alpha
- Replies: 10
- Views: 663
W prom and spotless AR in H-alpha
I was forced to give up with CaK for now as bad seeing conditions persists on N Italy, so I made few images in H-alpha of that impressive prom on the W limb and of the spotless bright region that is about to turn on the other side. I have also taken several videos of the prom as I intended to assemb...
- Mon May 25, 2020 6:32 pm
- Forum: Solar Scope Modifications
- Topic: CaK Herschel wedge mod details
- Replies: 6
- Views: 9406
Re: CaK Herschel wedge mod details
Just to add my experience with a setup similar to the one described in this old discussion: Baader Cool Ceramic wedge + Baader K-line + Lunt Ca-K module (etalon only) 1 wedge as.jpg the above is a low res image, still to investigate if there is enough light with my scope (115 mm) for taking hires im...
- Mon May 25, 2020 6:06 pm
- Forum: SPoD Archive
- Topic: Monday Sun-day Fun Day... 25th May '20
- Replies: 11
- Views: 830
Re: Monday Sun-day Fun Day... 25th May '20
A really great work, Stu.
- Mon May 25, 2020 6:06 pm
- Forum: This is SolarChat !!
- Topic: Monday Sun-day Fun Day... 25th May '20
- Replies: 19
- Views: 1044
Re: Monday Sun-day Fun Day... 25th May '20
A really great work, Stu.
- Mon May 25, 2020 10:46 am
- Forum: This is SolarChat !!
- Topic: 25.05.2020 Proms at 2 o'clock high!
- Replies: 22
- Views: 1029
Re: 25.05.2020 Proms at 10 o'clock high!
wow, great captures! love those fine details inside the flame
- Sun May 24, 2020 8:23 pm
- Forum: This is SolarChat !!
- Topic: May 20 CaK disc and H-alpha proms
- Replies: 23
- Views: 2135
Re: May 20 CaK disc and H-alpha proms
Hello John, I used of the original BF assembly of my Lunt module. The Barlow is a Takahashi extender, an air-spaced doublet with only 20 mm of free aperture. Given the dramatic improvement I had I am now planning to purchase a larger focal extender, possibly of a telecentric type.
- Sun May 24, 2020 1:45 pm
- Forum: This is SolarChat !!
- Topic: May 20 CaK disc and H-alpha proms
- Replies: 23
- Views: 2135
Re: May 20 CaK disc and H-alpha proms
May be a mix of coma and astigmatism, more coma perhaps. Today the seeing is horrific however I couldn't resist to make further tests and these are the results: taka betwn bf and eta arrow.jpg while rotating the BF assembly by 90° gives this taka betwn bf and eta 90deg arrow.jpg However placing the ...
- Sat May 23, 2020 6:05 pm
- Forum: This is SolarChat !!
- Topic: 21May - C11 HA/CAK Close-ups - Images added 23 May 20
- Replies: 33
- Views: 2698
Re: 21May - C11 HA/CAK Close-ups - Images added 23 May 20
Unfortunately I could not do anything better with your raws than GreatAttractor already did. However at that image scale I think you need a really excellent seeing to obtain good images. Why don't use a stronger reducer ?
- Sat May 23, 2020 5:30 pm
- Forum: This is SolarChat !!
- Topic: 2020-05-23, Ca-k in the mid section of the Sun
- Replies: 11
- Views: 685
Re: 2020-05-23, Ca-k in the mid section of the Sun
Great image, well resolved and well processed
- Sat May 23, 2020 4:46 pm
- Forum: This is SolarChat !!
- Topic: May 23 2020 Observations
- Replies: 10
- Views: 580
Re: May 23 2020 Observations
Great observing session. I missed everything today, still cloudy here.
- Sat May 23, 2020 4:44 pm
- Forum: This is SolarChat !!
- Topic: 22.05.2020 Short lived filament.
- Replies: 7
- Views: 479
Re: 22.05.2020 Short lived filament.
Nice images, Rusted, and what a beautiful old style observatory!
- Sat May 23, 2020 11:46 am
- Forum: This is SolarChat !!
- Topic: 21May - C11 HA/CAK Close-ups - Images added 23 May 20
- Replies: 33
- Views: 2698
Re: 21May - C11 HA/CAK Close-ups - Images added 23 May 20
Alfred, can you share the raw ?
- Fri May 22, 2020 2:59 pm
- Forum: This is SolarChat !!
- Topic: May 20 CaK disc and H-alpha proms
- Replies: 23
- Views: 2135
Re: May 20 CaK disc and H-alpha proms
Thanks, Alexandra, very interesting. I am planning to remove both BF filter to find a better tilting position as I think the problem is that.
- Fri May 22, 2020 1:37 pm
- Forum: This is SolarChat !!
- Topic: May 21 AR and Proms in H alpha
- Replies: 11
- Views: 690
Re: May 21 AR and Proms in H alpha
Great H alpha, lot of resolved details!
- Fri May 22, 2020 1:35 pm
- Forum: This is SolarChat !!
- Topic: Full disk 21-05-2020
- Replies: 8
- Views: 497
Re: Full disk 21-05-2020
Great discs, Rainer.
- Fri May 22, 2020 1:34 pm
- Forum: This is SolarChat !!
- Topic: h-alpha, May 21st, 2020
- Replies: 7
- Views: 586
Re: h-alpha, May 21st, 2020
Nice images, Frank!
- Fri May 22, 2020 12:18 pm
- Forum: This is SolarChat !!
- Topic: May 20 CaK disc and H-alpha proms
- Replies: 23
- Views: 2135
Re: May 20 CaK disc and H-alpha proms
Thanks Mark for the advice. Sky today is very hazy however I made a couple of video just to show the kind of problem I am facing with the BF. This below is an image with K-line + B-CCD in front of the etalon k crop.jpg and this is with the original Lunt BF assembly bf crop.jpg The latter seems to ha...
- Thu May 21, 2020 8:07 pm
- Forum: This is SolarChat !!
- Topic: May 20 CaK disc and H-alpha proms
- Replies: 23
- Views: 2135
Re: May 20 CaK disc and H-alpha proms
Thanks for comments and for useful info about a candidate BF for my Lunt etalon. Yes, 10nm FWHM seems too wide for an effective BF, however the K-line which is around 8nm gives only a slightly lower contrast compared to the original Lunt so may be that something around few nm could be enough as one ...
- Thu May 21, 2020 5:58 pm
- Forum: This is SolarChat !!
- Topic: 21May - C11 HA/CAK Close-ups - Images added 23 May 20
- Replies: 33
- Views: 2698
Re: 21May - C11 HA/CAK Close-ups
Great H-alpha detail, may be a little too dark, may I suggest a brighter version ?