Search found 386 matches

by DRatledge
Wed Jun 05, 2019 6:05 pm
Forum: Astrophotography
Topic: Fast moving star
Replies: 0
Views: 79

Fast moving star

I first imaged Hubble’s Variable Nebula 18 years ago in 2001 and returned to it again this year. However, when I was comparing images I noticed a star had moved. I checked Edwin Hubble's famous 1949 image and this star was even further to the north back then.
by DRatledge
Fri Mar 29, 2019 2:11 pm
Forum: General - Discussion
Topic: Clocks forward in the Stone Age
Replies: 1
Views: 491

Clocks forward in the Stone Age

If you think it’s a pain moving your clocks forward tomorrow night just imagine what it must be like at Stonehenge!
by DRatledge
Fri Mar 01, 2019 12:03 pm
Forum: Member Observations - Blogging
Topic: Stars in Orion - Ross's Survey
Replies: 5
Views: 1702

Re: Stars in Orion - Ross's Survey

Had another go at counting the stars again but I had help this time from my 11 year old grandson. He could see 12. We checked them against a star map and his faintest was the red star just below the belt at magnitude 5.9. The faintest I could see was magnitude 3.8 - that's the one below the left end...
by DRatledge
Sun Feb 10, 2019 10:56 am
Forum: Astrophotography
Topic: Asteroid 95 Arethusa
Replies: 0
Views: 547

Asteroid 95 Arethusa

Noticed something was moving on this image on 2nd February 2019. Checking the asteroid database then it turned out to be asteroid 95 Arethusa. Always worth checking. It is about 100 miles across.
by DRatledge
Wed Jan 30, 2019 10:04 am
Forum: Member Observations - Blogging
Topic: Stars in Orion - Ross's Survey
Replies: 5
Views: 1702

Re: Stars in Orion - Ross's Survey

Tried again last night just after 10:00pm. Got the same answer --- 6 stars.

I think it must be down to me using 73 year old eyes!
by DRatledge
Mon Jan 28, 2019 5:50 pm
Forum: Member Observations - Blogging
Topic: Stars in Orion - Ross's Survey
Replies: 5
Views: 1702

Stars in Orion - Ross's Survey

Following on from Tuesday when Ross mentioned the dark sky survey for how many stars you could see in Orion. That is inside the rectangle of Betelgeuse, Bellatrix, Rigel and the one at the bottom left (kappa). You don't count these 4 though. From by back garden: My answer is...….. 6 3 for the belt, ...
by DRatledge
Mon Jan 28, 2019 12:09 pm
Forum: Astrophotography
Topic: Supernova in NGC 3254
Replies: 0
Views: 584

Supernova in NGC 3254

Very bright supernova Sn2019NP in NGC 3254 is now visible - it only took 100 million years for the light to get here. This is one raw image (no calibration) taken last night with 4 inch apo and Canon 60D. Looks around 13th mag and is actually brighter than the core of the whole galaxy. Should be eas...
by DRatledge
Thu Jan 03, 2019 5:09 pm
Forum: Astrophotography
Topic: Too Many Aeroplanes
Replies: 1
Views: 1119

Too Many Aeroplanes

When you think what a tiny part of the sky a telescope is aiming at then it is amazing how pilots manage to fly their aeroplanes through the field of view. This was 1st January and you would have thought they would have had a day off.
by DRatledge
Mon Nov 19, 2018 2:49 pm
Forum: Astrophotography
Topic: Flatten Background?
Replies: 0
Views: 1063

Flatten Background?

Not light pollution this time but reflections from a very very bright star. So far non of the usual routines can flatten the background so thinking cap on!
by DRatledge
Thu Nov 15, 2018 2:49 pm
Forum: Astronomical events
Topic: Comet 64P/Swift-Gehrels
Replies: 4
Views: 2273

Re: Comet 64P/Swift-Gehrels

Shot it by accident last night - noticed it on the edge of my wide field image.

Like Ross's image above this was about 1 hour ie 14 x 5 mins exposures. It was taken with a Canon 60D on 4 inch Apo.