Last night i did some imaging and ended up with some nice images of the LMC.
However, I new that 40sec's images of LMC would not reveal much, but wanted to see how 135mm F2.0 would go at that short exposure, i was right,not real good.
Anyway I decided to look through the images last night, just to see what was captured at that speed, and as I scrolled through each image I noticed this star, or point of light the size of a Star move through each image, from the top of LMC to the Bottom.
It is only one light source, everything else is stationary, its not a sattelite, or Meteor, or the ISP, so what is it, they would trail.
I will attach all the images, so if some one can copy the eight of them in order, and have a look you will see this thing move.
Don't know Leon. Only thing I can think of is a satellite, but you're right about there should be trailing at that length of exposure. At that focal length you could probably only expect 10 sec or so of exposure before trailing. Can you post a full frame crop from one of the images, centered on the object?
Might be worth contacting CBAT or someone like that, with the times and exposure times etc... you may have found a Near earth asteroid that has gone undetected.
Andrew and Paul, the thing is obviously moving but slowly, because as i recall, when i do imaging i always bracket my exposures with a 30second gap before the next exposure.
So I's like this, 40sec's exp, than 30 sec gap, than 40sec exp, that explains its different positions with each frame, but why is it moving, that is what i would like to know.
And also the larger gap in the middle of the eight frames is because i lost that frame to a remote switch malfunction, other wise the gaps would have been equal.
John at about Midnight, but if it was a flare it would be only on one frame, and it would be a streak of light.
I took 10, 40sec's expo's of the same area, but lost two due to remote switch failure.
Cheers leon
Whoops! I just realized something. IF the satellite is geostationary or in a polar orbit (which your's probably is) then you won't get normal star trails. If polar then the trails will be N/S, not E/W as is normal, and the degree of trailing will depend on the satellites angular velocity in relation to the viewing point (your camera)
No worries Leon, the actual flare occured well North of where you were imaging, your time eliminated that anyway, I agree with Paul, probably a geostationary satellite.
Defintely not a geostationary satellite! They're usually close to the celestial equator for obvious reasons. Looks more like a slow polar orbiting satellite
I ran Starry Night for Ballarat and an hour either side of midnight, last night. It reproduces many (but not all) satellites, but none fitted the images. However, given the LMC's position in the sky, it wasn't a polar orbiting satellite as the path tracked from west to east.
If the exposures were 40 seconds duration and 30 seconds between images, it appears the object was emitting flashes (ie rotating and reflecting sunlight) for just a short period during each exposure (suggested by Dave Herald).
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If polar then the trails will be N/S, not E/W as is normal, and the degree of trailing will depend on the satellites angular velocity in relation to the viewing point (your camera)
i thought i had discovered something real. 
Na, I get the meaning.
