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TheMan

What's that?

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Just before the morning I thought i'd take some images of M83. But after processing in the bottom right there was a object and i'm not sure what it is. Does anyone know what it might be?

 whats that.JPG

Edited by TheMan

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NGC 3621 i bet it is, could be wrong though but i'm pretty sure.

image.png.f5eeebce90a7df8cb465ae0a7797f09e.png

Edited by Sunshine

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7 minutes ago, Sunshine said:

NGC 3621 i bet it is.

I slapped that into a planetarium and it said this.

i dont think so.JPG

  • Confused 1

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50 minutes ago, TheMan said:

slapped that into a planetarium and it said this.

notice the galaxy in question NGC3621 in the lower right box with relation to M83, it matches your image right on. The problem is scale though, relative to their positions in Stellarium, 3621 should not be visible in the image you took.

Screen Shot 2019-01-12 at 10.20.11 PM.png

Edited by Sunshine

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Someone will chime in and crack the case, and bump our heads together lol.

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NGC 5253?

I'm hopeless at navigating dense star fields, particularly ones I don't know, but if you draw a line from HD118646 to HD118600, it is on the opposite side of that line to M83, at a distance of about 113' from M83.

On my screen the distance between these two stars is ~25mm and the distance from M83 to the galaxy is ~175mm, which is 7x the distance. The actual distance between the two stars is about 17' so the galaxy is about 7x17' from M83, which works out at 119'. Given the by-gosh-and-by-golly guestimates I have used, that would put it within striking distance.

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Just taken a few more careful measurements:

Star distance on image 26mm = 17' 07.7" = 17.12'; centre of M83/Galaxy distance = 169mm = 6.5x star distance = 111.3'

Distance M 83/NGC 5253 = 113.3', which puts my figures within 2% of the actual distance, so I will stick my neck out and hereby remove the '?' from my previous post!

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9 minutes ago, clarkpm4242 said:

Astrometry.net  

 

Well that clears a lot of confusion. 

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