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C/2017 T1

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djswan2002's picture
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C/2017 T1

Most of you are probably aware that Ari Heinze, working on the ATLAS project at the University of Hawaii, has found a new comet. It is predicted to reach peak brightness - just brighter than mag 9 - early in the New Year.

I have looked at the JPL Horizons eph, and it would be a nice challenge, I think, to catch it now. It's in Hydra, so an early rise is required. Where I am, it should be higher than 25deg alt in the SSE at 0500 - although it's only mag 16.7 at the moment.

Mike Olason has a pic on the S&T page. (And of course there are other images in the BAA comet image archive.)

David

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C/2017 T1 (Heinze)

David, yes this could be a nice comet for us since it is very well placed at its brightest. I expect it might get to tenth mag around the end of the year when the comet is racing through the circumpolar constellations. See the attached chart. We already have a few images of it in the archive and would welcome observations as it moves in to perihelion.

Nick.

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Comet Heinze

David,

If you can image ASASSN, you can image Heinze, I look forward to your images.

Mike

djswan2002's picture
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Detected Heinze or not?

Certainly not a striking image, but I might just have picked up Heinze above the sky background. Please see the FITS here

https://1drv.ms/u/s!Agvxu8wNOxpAcJ2l_8CiGRTPXrc

and give me your opinion. The midpoint of the capture was 050649 UT on 8 Nov 2017.

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Hi David. I loaded your image

Hi David. I loaded your image into Aladin (a very useful free program that you can download for free from here) and marked the position of the comet at the time of your observation (the pink cross). The faint fuzz is certainly in the right sort of position but it is difficult to be certain since it is so close to the detection limit and it could be an artefact. For very faint objects like this it is worth getting two stacks separated by 30 mins or so. When the two images are blinked any faint comets become obvious from their motion.

Anyway, this is certainly a very good attempt. Please keep trying to image this object.

Nick.

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Thanks

Thanks Nick. The software looks really useful. I noted there was a long smudge just below as well, so it does make one a bit doubtful! I’ll try to get multiple stacks as you suggest, and then blink them. David