The Charlie Bates Solar Astronomy Project is proudly sponsored by the following fine companies:
ImageImageImageImage
Image
Image
Solar Analemma. This outstanding image from Alexandra Hart taken over a period of 4 years charts the midday position of the sun in the sky throughout the year. The north–south component of the analemma results from the change in the Sun's declination due to the tilt of Earth's axis of rotation. The east–west component results from the nonuniform rate of change of the Sun's right ascension, governed by combined effects of Earth's axial tilt and orbital eccentricity.

Merry Christmas, Happy New Year and looking forward to a great solar cycle 25!

Welcome to Solar Chat! The best forum for Solar Astronomy
Moving forward from solar cycle 24 to 25

Search found 123 matches

by DeepSolar64
Thu Jan 23, 2020 6:23 pm
Forum: This is SolarChat !!
Topic: Solar offerings from Jan. 21, 2020
Replies: 11
Views: 139

Re: Solar offerings from Jan. 21, 2020

It was a very nice easy to see prominence. I could only barely pick out one of the bright areas visually.

James
by DeepSolar64
Tue Jan 14, 2020 1:08 am
Forum: This is SolarChat !!
Topic: Full Disc 13 January 2020
Replies: 9
Views: 145

Re: Full Disc 13 January 2020

Thanks for updating me an the sun today Rainer. I had cloudy skies today.

James
by DeepSolar64
Mon Jan 13, 2020 3:38 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Meade / Solarmax Etalon Future?
Replies: 17
Views: 573

Re: Meade / Solarmax Etalon Future?

Bob, Thanks for the info. I am used to nighttime observing which does not require etalons. As a general rule anything in the light path reduces contrast. The smaller the better. None is best. I actually downsized the diagonal mirror in my old RV-6 Dynascope years ago to push an already great perform...
by DeepSolar64
Mon Jan 13, 2020 3:16 am
Forum: This is SolarChat !!
Topic: CaK disc and ARs of January 12
Replies: 12
Views: 178

Re: CaK disc and ARs of January 12

Awesome!!
by DeepSolar64
Sun Jan 12, 2020 4:26 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Meade / Solarmax Etalon Future?
Replies: 17
Views: 573

Re: Meade / Solarmax Etalon Future?

Thanks Rainer, I am learning all the time! I must be wrong about Lunt too. It is Solarscope that is unobstructed.

https://solarscope.co.uk/solar-telescopes/
by DeepSolar64
Sun Jan 12, 2020 3:31 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Why no DSLR cameras?
Replies: 8
Views: 343

Re: Why no DSLR cameras?

Why no DSLR cameras? Brand new to Ha solar observing. While I await the arrival of my Lunt LS60HaTP, I have been perusing the forum. I don't see any reference to the use of any DSLR cameras with solar telescopes. Curious why not? I wondered the same! I knew the video cameras were superior but was a...
by DeepSolar64
Sun Jan 12, 2020 3:21 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Herschel Wedges
Replies: 11
Views: 282

Re: Herschel Wedges

Franco,

I am considering getting a Lunt wedge myself.

James
by DeepSolar64
Sun Jan 12, 2020 3:18 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Meade / Solarmax Etalon Future?
Replies: 17
Views: 573

Re: Meade / Solarmax Etalon Future?

I read about Meade declaring bankruptcy but know nothing more. I have a SolarMax II 60 DS. It does quite well but I never have liked the idea of the central obstruction it has in the light path. A refractor should be unobstructed. I did not research well enough when I bought it or I would have proba...
by DeepSolar64
Sun Jan 12, 2020 2:57 am
Forum: This is SolarChat !!
Topic: Visual Solar Observing
Replies: 17
Views: 333

Re: Visual Solar Observing

Yes, A binoviewer would be awesome. I have learned from binocular viewing that two eyes are always better than one! And Pedro, you have an FS 60! That is one of two small scopes on my want list, the other being an AT 72. I use my smaller scopes far more than my larger reflectors. Quick set-up to-go ...
by DeepSolar64
Sun Jan 12, 2020 2:49 am
Forum: This is SolarChat !!
Topic: DSLR Solar Photography??
Replies: 7
Views: 143

Re: DSLR Solar Photography??

Thanks Rainer. It looks like I will have to purchase a monochrome video camera. The better ones are quite pricey though. I need to find a reasonably priced one that has decent performance. Like most things I realize you get what you pay for.

James
by DeepSolar64
Sun Jan 12, 2020 2:42 am
Forum: This is SolarChat !!
Topic: Full Disc 08 January 2020
Replies: 24
Views: 311

Re: Full Disc 08 January 2020

Now the question is, when will cycle 24 truly end?
by DeepSolar64
Sat Jan 11, 2020 9:47 pm
Forum: This is SolarChat !!
Topic: Full Disc 11 January 2020
Replies: 14
Views: 470

Re: Full Disc 11 January 2020

Rainer

Thanks for the Ha & WL views. I have cloudy rainy weather here today.

James
by DeepSolar64
Sat Jan 11, 2020 9:43 pm
Forum: This is SolarChat !!
Topic: FD and prominence 11/01/2020
Replies: 10
Views: 132

Re: FD and prominence 11/01/2020

Thanks for the view Salvo. Very nice! I have heavy rain in my part of the world today.
by DeepSolar64
Sat Jan 11, 2020 9:23 pm
Forum: This is SolarChat !!
Topic: DSLR Solar Photography??
Replies: 7
Views: 143

Re: DSLR Solar Photography??

All, I knew the video stacking method was superior the DSLR stills. It shows the evidence clearly on anything that is shot using it. By the sheer number of images taken it helps get around seeing. Just like the eye can momentarily see sharp details in moments of good seeing. The video captures that....
by DeepSolar64
Sat Jan 11, 2020 9:05 pm
Forum: This is SolarChat !!
Topic: Visual Solar Observing
Replies: 17
Views: 333

Re: Visual Solar Observing

Thanks for your replies. And you guys/gals do not have to take records. Your photos largely do that for you! Once I do get into solar imaging I probably still will keep a visual log. I do it with planetary and deep sky observing as well. It is a well forged habit. I agree that nothing replaces the v...
by DeepSolar64
Sat Jan 11, 2020 3:27 am
Forum: Commercial Solar Filters/Cameras/Hardware
Topic: Blocking filters and wintertime
Replies: 20
Views: 975

Re: Blocking filters and wintertime

Update, So far winter temperatures have not been an issue with my Coronado BF 15 blocking filter. I have observed down to about freezing with it with what appears to be only a slight loss of detail. I have no trouble getting the scope on band above 42 degrees or so but still am able to when it is co...
by DeepSolar64
Sat Jan 11, 2020 3:00 am
Forum: This is SolarChat !!
Topic: DSLR Solar Photography??
Replies: 7
Views: 143

DSLR Solar Photography??

All, I have gotten a new Nikon D3500 DSLR camera for Christmas. I hope to use it for solar imaging. I know that it is not going to have the performance that the video stacking method does but I know it can be used. Any advice here? I have the extension tubes for the scopes but I still need to order ...
by DeepSolar64
Sat Jan 11, 2020 2:48 am
Forum: This is SolarChat !!
Topic: Visual Solar Observing
Replies: 17
Views: 333

Visual Solar Observing

All, Just curious, how many here regularly visually observe the sun? Not as just a way to find the sun etc to image it. Most of you guys/gals here seem to be primarily solar photographers/imagers. That is something I do plan to get into in the future as soon as I can finance the equipment. But for n...
by DeepSolar64
Sat Jan 11, 2020 2:34 am
Forum: This is SolarChat !!
Topic: Full Disc 09 January 2020
Replies: 10
Views: 136

Re: Full Disc 09 January 2020

I eagerly await cycle 25. My first in Hydrogen-Alpha!

James
by DeepSolar64
Thu Jan 09, 2020 6:45 am
Forum: This is SolarChat !!
Topic: Jan. 7 and 8, 2020 LS80
Replies: 12
Views: 193

Re: Jan. 7 and 8, 2020 LS80

Phil,

I observed these features on both the 7th and 8th. Your pictures show them so well!

James
by DeepSolar64
Wed Jan 08, 2020 6:12 am
Forum: This is SolarChat !!
Topic: AR2755 2020/1/5
Replies: 12
Views: 190

Re: AR2755 2020/1/5

Absolutely incredible resolution Olivier. I can only dream of that!

James
by DeepSolar64
Wed Jan 08, 2020 6:06 am
Forum: This is SolarChat !!
Topic: Jan 6, 2020 LS80
Replies: 10
Views: 147

Re: Jan 6, 2020 LS80

It is amazing how dark those two prominences are. Very easy to see, even at a low 16x in my Coronado SolarMax II.
by DeepSolar64
Fri Dec 27, 2019 3:34 am
Forum: This is SolarChat !!
Topic: Sunspots AR2753 and AR2754
Replies: 10
Views: 193

Re: Sunspots AR2753 and AR2754

It's just nice to see more than just granulation on the white-light solar disc!!
by DeepSolar64
Fri Dec 27, 2019 3:33 am
Forum: This is SolarChat !!
Topic: Seasons Greetings
Replies: 8
Views: 159

Re: Seasons Greetings

I hope everyone had a wonderful Christmas here. And got some solar related gifts!

James