I have tried this before and never hit the right combination to be able to achieve focus , a few days ago I got lucky . What I used was an Antares 1.25" 0.5X Focal reducerhttp://agenaastro.com/antares-1-25-0-5x-focal-reducer.html
With this I used a 20mm "C" mount spacer in place of the nose piece that came with the camera . This allowed the camera to sit very close to the eyepiece holder and spaces the F/R in a correct position .
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Here is an image shot today using this combination for the first time with my DMK21
This Blog is about solar viewing and imaging. DISCLAIMER : NOTE! Viewing the sun can be extremely dangerous! The information provided here is meant only as a description of what one or two people have done. The reader accepts all responsibility and liability associated with the use of any information provided here, as it is possible that important precautionary information may be left out. Neither Bill nor Mike is responsible for damage resulting from using the information and ideas herein!
Favorite Sites
- Astronomy Forum
- Bill's Solar Albums
- Current Solar Activity
- Glossary of terms for Solar Data
- Great Solar data Site Current/Past
- Mike's Solar Albums
- Prominence Types
- SOHO Images Plus
- Solar Chat - All Things Solar & Solar Scope Modifications
- Solar Flare Activity
- Solar Monitor
- Solar Observing Guide
- SolarHam
- Space Weather
Sunday, November 24, 2013
Saturday, November 23, 2013
Images From Nov 20
I guess you could say I was getting behind but I wanted to leave Bill's fantastic prom shots at the top for a bit before I posted these . My day was a cool +4c with clear sky's to start until some light cloud moved in at the end of the session . It was a good day for imaging so I took some white light to go with the HA . One more thing I discovered was how to effectively use a 0.5 reducer and take a one shot full disk , so my full disk images will no longer have the bottom sliver cut off .
AR 1899 & 1896
A closer view of AR 1899
AR 1899 & 1896
A closer view of AR 1899
Thursday, November 21, 2013
Friday, November 15, 2013
A couple from Nov 14
It has been very windy here in Ontario lately , to be expected as the colder air moves in .
November 14 Disk
As some who come here know I have been working on a new project . This involves mating my SM 60 with a 127mm refractor . This project has gotten off to a shaky start but is starting to come around now , when I get all the bugs out of it I will post all the details of the build .
This is an early image from this scope also taken yesterday , DMK 21 and no barlow .
November 14 Disk
As some who come here know I have been working on a new project . This involves mating my SM 60 with a 127mm refractor . This project has gotten off to a shaky start but is starting to come around now , when I get all the bugs out of it I will post all the details of the build .
This is an early image from this scope also taken yesterday , DMK 21 and no barlow .
Thursday, November 14, 2013
Images From November 13
I finally had an opportunity to image again after what seemed like a long time . My conditions were not very good and I had a stiff wind adding to the challenge . Bill also has some great images from yesterday so I will try not to duplicate what he has for you .
Full Disk November 13
AR 1893
Long Filament
A Floating or Detached Prom
Bill has some amazing prom and surface shots that I am sure he will be adding soon .
Full Disk November 13
AR 1893
Long Filament
A Floating or Detached Prom
Bill has some amazing prom and surface shots that I am sure he will be adding soon .
Sunday, November 10, 2013
Thursday, November 7, 2013
I thought that I would post some facts about our nearest star.
Mean Distance from Earth - 1.496 X 10^8 km / 92,946,000 mi
At the speed of light - 8 min 19s
Visual Brightness - -26.74 (Compare to Sirius @ -1.46)
Mean Diameter - 1.392684 X 10^6 km / 865,413 mi
Equatorial Circumference - 4.379 X 10^6 km / 109 X Earth
Volume - 1.412 X 10^18 km^3 / 1,300,000 X Earth
Mass - 1.9891 X 10^30 kg / 333,000 X Earth
Temperature Photosphere - 5,778 K / 5,504 °C / 9,941 °F
Sidereal Rotation @ Equator - 25.05 Days
@ Poles - 34.4 Days
Composition - Hydrogen 73.46%
Helium 24.85%
Oxygen 0.77%
Carbon 0.29%
Neon 0.12%
Nitrogen 0.09%
Silicon 0.07%
Magnesium 0.05%
Sulfur 0.04%
Mean Distance from Earth - 1.496 X 10^8 km / 92,946,000 mi
At the speed of light - 8 min 19s
Visual Brightness - -26.74 (Compare to Sirius @ -1.46)
Mean Diameter - 1.392684 X 10^6 km / 865,413 mi
Equatorial Circumference - 4.379 X 10^6 km / 109 X Earth
Volume - 1.412 X 10^18 km^3 / 1,300,000 X Earth
Mass - 1.9891 X 10^30 kg / 333,000 X Earth
Temperature Photosphere - 5,778 K / 5,504 °C / 9,941 °F
Sidereal Rotation @ Equator - 25.05 Days
@ Poles - 34.4 Days
Composition - Hydrogen 73.46%
Helium 24.85%
Oxygen 0.77%
Carbon 0.29%
Neon 0.12%
Nitrogen 0.09%
Silicon 0.07%
Magnesium 0.05%
Sulfur 0.04%
Wednesday, November 6, 2013
Here is a chart that compares the last 3 solar cycles with the current cycle 24.
Solar cycle start dates - 21 - June, 1976, 22 - September, 1986, 23 - May, 1996, 24 - January, 2008
Chart from - Solen
This solar cycle is quite weak compared to cycles of the recent past.
Solar cycle start dates - 21 - June, 1976, 22 - September, 1986, 23 - May, 1996, 24 - January, 2008
Chart from - Solen
This solar cycle is quite weak compared to cycles of the recent past.
Tuesday, November 5, 2013
Sunday, November 3, 2013
November 3 Full Disk
Today has been the first opportunity I have had in the last couple of weeks for any imaging , although the sky was clear the viewing conditions were very poor . It was not a day for any kind of close ups but I did manage to salvage a disk shot for today .
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