¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io
Re: SRSP
Stu, I am so sorry to hear about that. Take care, the ranks of "old"..... "Alte" (old in German)...is getting thin and not being replaced. We can't afford to lose any! Get well.?? Mark
By jimcoble2000 · #57560 ·
SRSP
Ian...I was all ready to attend the spring star party when I fell in the concrete driveway and broke my arm this Friday so I won't see you guys this SP. Maybe in October. Stu
By Stu Beaber · #57559 ·
Re: Big Solar Prominence in H-alpha!
Doing it with the gong image gets it closer to your figure. We are still pretty good for back yard. A quick look in the history seems to say typical can go to 65000. The record is 500000. I wish I had
By jimcoble2000 · #57558 ·
Re: Big Solar Prominence in H-alpha!
I see it on Gong. Their image is a bit better than mine!
By jimcoble2000 · #57557 ·
Re: I estimate 100,000 km in height for the morning's prom.
Maybe someone on Spaceweather.com will weigh in.
By jimcoble2000 · #57556 ·
Re: I estimate 100,000 km in height for the morning's prom.
Visual estimate but we are actually fairly close considering the tools. Attached is the scale I have. I think you are more accurate with the graduated EP
By jimcoble2000 · #57555 ·
Re: I estimate 100,000 km in height for the morning's prom.
If you can measure a prom to 5 figures your ruler is way better than mine.
By Roy Diffrient · #57554 ·
Re: Proimence!
Thanks Kent. That gives me a third way to estimate height. Bearing in mind that photocopies never come out to original scale and computer images may or may not scale. I adjusted the image to fit my
By jimcoble2000 · #57553 ·
Proimence!
Here is my rather crude attempt to capture the solar prominence with my 20-year-old H-alpha scope. The visual view far exceeds this rather so-so picture. I was trying to balance the telescope with a
By Kent Blackwell · #57552 ·
Re: Big Prominence!
We estimate very close in height. I did not do the length.
By jimcoble2000 · #57551 ·
I estimate 100,000 km in height for the morning's prom.
Roy what do you figure? 62,137 miles high. Now that is using a scales superimposed on the sun as a guide but I think I am close.
By jimcoble2000 · #57550 ·
Big Solar Prominence in H-alpha!
Largest for months ¨C it¡¯s curved over back toward the solar disk, about 45K miles tall, 100K miles long. See it on Gong too:
By Roy Diffrient · #57549 ·
8" MAG Instruments Portaball
This is up for sale on Cloudy nights: https://www.cloudynights.com/classifieds/item/404208-8%E2%80%9D-portaball/ Disclaimer, I know nothing about the seller. Just found it interesting to see one up on
By Jeffrey Thornton · #57548 ·
Re: moon
I don't think I'll book a cruise to that one.
By jimcoble2000 · #57547 ·
Re: moon
well that's one way of looking at it
By jimcoble2000 · #57546 ·
Re: moon
Wonderbar!
By Ian Stewart · #57545 ·
moon
The comparison of the views from the Earth and from the Moon at the same time of a total lunar eclipse. https://spaceweathergallery2.com/indiv_upload.php?upload_id=221042 v/r Chuck Jagow President ¨C
By charles jagow · #57544 ·
Lunar Eclipse clouded out
Tonight's scheduled lunar eclipse watch at Bells Mill Park has been CANCELLED due to total cloud cover. There will be another total eclipse of the Moon next year, on March 3, 2026. George George
By George Reynolds · #57543 ·
Re: Binoviewer advice/experiences
Sure. All my pairs went long ago.
By jimcoble2000 · #57542 ·
Re: Binoviewer advice/experiences
Thanks Mark. I know someone (Kent) that has the same eyepieces I have and will see if he will join in for the test. [email protected]> wrote:
By Patrick Vartuli · #57541 ·