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I struggled to log in – I worried that maybe maybe membership had lapsed.
Once in I made a post (variable stars section) but could not see how to attach an image.Very low over my roof – first image could not see it at all.
Extremely poor seeing. Single image, 600 seconds, 10″ reflector
Confirmation as a nova:
Hi Robin,
I tried to open the FITS file of the spectrum as on the TNS page – Maxim will not open it.
tns_2019agt_2019-02-04_18-35-15_Other_Other.fit
What am I doing wrong?
George
Some near the edge where the image overlap could be from a variety of causes.
I aligned the frames with Registar.
GIF too big for the forum, so loaded here: http://geoastro.co.uk/january2019/M31seq.gif
Well done Robin – may be a few clear hours tonight from my location.
You are right about the M31 season drawing to a close.
My image quality goes to pieces around the middle of February.
I have filled in gaps in my data with remote observations using iTelescopes in Spain, and filtered images from Sofia University (Atel #12268).
The nova is now near the limit for my equipment so not much more can be obtained.
I tried Aperture today – very similar results. Mag 16.6.
If I increase the aperture the mag rises to 16.3.
Pinpoint gave fairly consistent values at 16.8
I have the centroid at radius 3.
These are values I get when I change the radius:
centroid magn. radius 1 18.0 2 16.9 3 16.5 4 16.5 5 16.4 6 16.3 7 16.2 8 16.2 At radius 3 it looks like all of the nova is in the circle.
I am never sure what is best.
