v.198 uploaded:  13th October 2017
Sharnbrook Observatory

Welcome to my web site!

This version includes images of the Sun taken in a phase of unexpected late cycle activity. There are also images taken on a visit
to the Institute of Astronomy, Cambridge.

All of the images on this site are my own, taken using amateur telescopes and equipment.

As ever, I hope this encourages you to get out there and enjoy the treasures of our universe at first hand.

Best Wishes,  

Peter Garbett



Galleries...


African Skies     Mars                Venus            Equipment          Comets          Sun



The Aurora          Deep Sky       Moon          Jupiter             Saturn            NLC






An unexpected burst of activity on the Sun




Precursor to the strongest solar flare for more than a decade

The flare imaged above peaked at X2.2. The one that followed on its heels a few hours later
was X9.

06.09.17   09:17 UTC
Coronado SM40 double stack filter on Orion ED f=600mm refractor
PGR Flea 3 CCD; Baader UV/IR rejection filter




06.09.17   09:22 UTC






06.09.17   09:23 UTC







06.09.17   09:25 UTC








Complex sunspot group, AR 2673 with granulation
Area = 880 micro hemispheres at 0h and 960 at 24h

06.09.17   09:46 UTC
20cm Meade LX200 SCT f = 2000mm.
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter. Mediocre seeing. Cloud issues.



Differently processed version showing internal structure in some large umbrae.




Finer detail shown on this stack of a smaller % of the frames.





06.09.17   09:38 UTC (above and below - processed differently)







   

Notice the changes 6-7 hours after the morning images.

06.09.17   16:00 UTC
Seeing turbulent but less cloud issues than in the morning.










06.09.17   16:07 UTC








AR 2674
01.09.17   09:53 UTC
20cm Meade LX200 SCT with x2 Celestron Ultima Barlow lens
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter.








09:45 UTC








Mozaic of AR 2674. Area = 770 micro hemispheres.






01.09.17   09:21 UTC
20cm Meade LX200 SCT f = 2000mm.
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter.











06.09.17  08:59 - 09:08 UTC
AR 2673 and AR 2674
Mozaic of images with Orion 80mm ED apo refractor f = 600mm;
FLEA 3 CCD, Baader astrosolar film, Baader Solar Continuum filter, Baader UV/IR rejection filter








06.09.17  16:12 - 16:17 UTC
AR 2673 and AR 2674
Mozaic of images with Orion 80mm ED apo refractor f = 600mm;
FLEA 3 CCD, Baader astrosolar film, Baader Solar Continuum filter, Baader UV/IR rejection filter












05.09.17  16:57 - 17:06 UTC
AR 2673 and AR 2674
Mozaic of images with Orion 80mm ED apo refractor f = 600mm;
FLEA 3 CCD, Baader astrosolar film, Baader Solar Continuum filter, Baader UV/IR rejection filter










   


New arrivals at E.limb. Amazingly, the seemingly quiescent spot AR 2673 on the right was to transform suddenly into a bit of a beast!

29.08.17  09:22 UTC and 09:28 UTC respectively
AR 2674 (left) and AR 2673 (right)
Mozaic of images with Orion 80mm ED apo refractor f = 600mm;
FLEA 3 CCD, Baader astrosolar film, Baader Solar Continuum filter, Baader UV/IR rejection filter







AR 2672
27.08.17  09:34 UTC
20cm Meade LX200 SCT f = 2000mm.
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter.








AR 2672
27.08.17  09:41 UTC
20cm Meade LX200 SCT f = 2000mm.
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter.






AR 2671
20.08.17  09:57 UTC
20cm Meade LX200 SCT f = 2000mm.
Flea 3 CCD; Baader ND 3.8 astrosolar film; Baader solar continuum filter; Baader UV/IR
rejection filter.


Lower contrast view to show subtle details within the larger umbrae:






Saturn - jolly low and tricky to image!
               
Rings splendidly 'open'.
Poor seeing. Altitude only 15 degrees.

17.06.17
C14 @ f/11; Flea 3 CCD.







The Institute of Astronomy, Cambridge


Approaching the university observatory building (1823): a magnificent listed building...













The Northumberland 12-inch achromatic doublet refractor (1833)

The poor quality lens was replaced by a finer specimen to celebrate the 150th anniversary of the instrument, manufactured by A.E. Optics Ltd. For some
years after its construction it was one of the largest refractors in the world.








Solar Physics Observatory (SPO) and 16-inch telescope









Thorrowgood telescope (built by T.Cooke & Sons 1864)
8-inch f/14 achromatic doublet - an excellent lens










Three mirror telescope (perfectly achromatic 5-degree field)








36-inch telescope (probably the largest in the U.K.)
Built 1951-1955 by the firm of Sir Howard Grubb, Parsons & co.. Has f/4.5, f/18 and f/30 options.
N.B. the Battcock Centre building sits adjacent to it.













The Kavli Institute for Cosmology (2008)







The occasion of this visit was to the 50th anniversary meeting of the Webb Society, where the keynote speaker was Professor Carlos Frenk (pictured on the left below).
To the surprise of both my 11 year old son, Ralf and I, this lecture was also attended by the 15th Astronomer Royal, Lord Martin Rees. We got to meet both of them after the lecture and Ralf had his oppotunity to ask the question he had in mind. Two friendly and genial men!


           









Other sites of personal interest...


Amateurs                                                                          Commercial

Damian Peach's site                                                                Telescope House

Ian King's site                                                                         Coronado Hydrogen Alpha Filters

Jack Newton's site                                                                  Celestron U.K.

Nik Szymanek's site                                                                Meade

Rob Gendler's site                                                                  Starlight Xpress Ltd

Stefan Seip's site                                                                   True Technology Ltd

Steve Mandel's site                                                                Ian King Imaging

Thierry Legault's site                                                             Modern Astronomy

Brierley Hill Solar


Organisations/resources                                              Software

Astro buy/sell                                                                       Christian Buil's software      

American Meteor Society                                                       Registax for processing webcam images

Big Bear Solar Observatory latest images of the Sun                Firecapture software for Flea 3 etc

British Astronomical Association                                            Satellite predictions                

Cloud forecast for UK                                                           WinJUPOS

Cloudy Nights reviews                                                          Auto Stakkert!

Horace Dall, 1982  (video by Robin Scagell)                           Deep Sky Stacker

U.S. Naval Observatory Clock  UTC                                        GradientXTerminator

Luton Astronomical Society                                                   PHD autoguiding, DSLR shutter control etc                           

Observing Planets around other Stars via Transits!                  Stellarium planetarium software

Periodic error test results for mounts                                    Starry Dave software e.g. solar animations
(Google translator from French)

Prince Albert (South Africa) site                                            Noel Carboni's software

Solar astronomer's library

Solar Influences Data Analysis Center (International sunspot numbers)

SpaceWeather.com for solar activity and far more!

Unisys Jet Stream Forecast to assess likely seeing conditions

Jet Stream Forecast

wunderground.com weather models to assess likely seeing conditions

Uk astro imaging forum

UK IR satellite cloud cover

Mount Wilson Observatory including archived sunspot drawings from the solar tower

IAU naming of planetary features





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Established October 2000.           Copyright: P.J.Garbett