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Amazing, unfortunately I was unwell and missed it in Greater London. I thought it would be clouded out or not visible in London. I tried looking on the following night but nothing seemed to appear. I now have the AuroraUK watch app on my phone for alerts!
Did anyone do a timelapse ? How long did the aurora last for. I am looking to see 1-2 hour timelapses or even videos !
Many thanks.
Very nice captures !
How did you capture them ? Telescope or camera and did you use a computer to automate the sequence during the eclipse.I have only seen 1 TSE in Cornwall through thick cloud and did not see the corona in August 1999.
Kwong
Question about the “B” filter mentioned in Jeremy’s article on T CrB.
Is that a Johnson B filter or an ordinary Blue filter.
And what is the RA and Dec of T CrB, I cannot find a reference to it.
{I worked out it is in the constellation of Corona Borealis, near Hercules).Many thanks.
KwongHi Steve,
How old is that book ?
He may have a point but during totality (after the Pearls disappear), it should be ok but having some ND1 or ND2 filtes may be helpful to cover your eyes could be helpful, depending on how bright the corona is. I have never been to a total eclipse, so I have no definite proof on that.
Kwong
Hi,
I am not totally sure, but it could act like a blocking filter function (cut out UV light). I would check with the manufacturers, Lunt. I am not sure if you need to be cleaning that !Kwong
Hi Kevin,
That would be interesting. Can I try your raw/stacked solar image and compare to you PI processed one ? That would be useful I think.
Not sure if you can give a dropbox or Google Drive link to that file ?Kwong
It looks very nice Kevin. Have you tried ImPPG, a free resource available on github. Many solar imagers use this in preference to anything else, although I am not sure if they would have PixInsight.
There is a very nice deconvolution, tone/histogram tool and unsharp masking. They give excellent results I think, although I have not access to your tools in Pixinsight.
Kwong
So this shows the comet is getting brighter ? What about the tail of the comet, is it getting brighter/bigger as well ?
Can someone advise what I am doing wrong – there are some NaN in some of the columns to the left, such as JD_SOBS,HJD_UTC,BJD_TDB,ALT_OBJ,RAOBJ2K
,DECOBJ2KI think my data looks quite sound apart from this, do you agree ?
What does this mean and can I get this data from my original FITS files?
I used ASTAP for science – plate solve and align.
I then ran 8 files in AIJ (used CCD DP tool).Thanks.
KwongI also used ASTAP to platesolve some files and align them. I then ran them through AIJ. I think I got some NaN columns. What is NaN stand for ? I tried submitting a AIJ data via the BAA spreadsheet.xlsm but it mentioned there was an error (?NaN) and it did load some AIJ data in a sheet but did not create more graphs and the old WASP-1b data stayed in most of the sheets.
Did you solve via this problem by the CCD DP tool and enable FITS header and the coordinate converter tool set up for the target and obsy location – is the obsy location the location of the telescope where it was imaged ?
Thanks.
KwongVery interesting. This is a very small galaxy (obviously) less than 2 arc minutes. Do you have an ideal focal length/size of telescope to image it, it is still relatively low in the sky in the London area.
Hello Ian,
Thanks for your excellent imaging and analysis of the supernova. I was wondering, how you manage to get so much data, my skies are quite cloudy and even quite windy.
Also how do you find the M101 so accurately, which software and platesolving software do you use ?Many thanks.
KwongHi,
What is the V filter I read on earlier?
I want to do photometry on this. Do you need a really high focal length telescope e.g. C11 or can you do it with smaller lower focal length refractors?
Can you use a h-alpha filter 7nm bandwidth and do useful photometry ? as I am in a light pollution area.Thanks.
Kwong
