Bottletopburly Posted September 16, 2020 Share Posted September 16, 2020 possible meteor on one of M31 images +seven_legs and +RonC 2 Link to comment Share on other sites More sharing options...
Clive Posted September 16, 2020 Share Posted September 16, 2020 Looks a bit like a satellite 'flare', is there any sign of it on the pre or post images? Link to comment Share on other sites More sharing options...
Bottletopburly Posted September 16, 2020 Author Share Posted September 16, 2020 No doesn’t seem to be Clive this was a 2min exposure. Link to comment Share on other sites More sharing options...
Guest Posted September 16, 2020 Share Posted September 16, 2020 2 hours ago, Clive said: Looks a bit like a satellite 'flare', is there any sign of it on the pre or post images? I use the pre- and post- images to eliminate "meteors" too. Link to comment Share on other sites More sharing options...
Guest Posted September 16, 2020 Share Posted September 16, 2020 1 hour ago, Bottletopburly said: No doesn’t seem to be Clive this was a 2min exposure. The 2 min exposure does not help. I use high ISO and 6 seconds exposure to "trap" meteors. My opinion is that it could be a meteor but could also be a satellite trail. Odds about 60/40 in favour of a meteor IMNSHO. Link to comment Share on other sites More sharing options...
Clive Posted September 16, 2020 Share Posted September 16, 2020 Having thought about it, the time the image was captured could rule out a satellite. If it was taken whilst M31 was in the 'position' of the Earth's shadow then there would be nothing to illuminate one. Link to comment Share on other sites More sharing options...
Bottletopburly Posted September 17, 2020 Author Share Posted September 17, 2020 5 hours ago, Clive said: Having thought about it, the time the image was captured could rule out a satellite. If it was taken whilst M31 was in the 'position' of the Earth's shadow then there would be nothing to illuminate one. Image taken at 21.33 hrs Clive not on images before or after Link to comment Share on other sites More sharing options...
Clive Posted September 17, 2020 Share Posted September 17, 2020 At that time it could be satellite. With a 2 min exposure, unless it crossed the field of view near the start or end of the exposure it probably wouldn't show up on other images. Bottletopburly 1 Link to comment Share on other sites More sharing options...
+Graham Posted September 17, 2020 Share Posted September 17, 2020 (edited) Cannot see anything on the detector David. Looks very muck like an Iridium flare. Edited September 17, 2020 by Graham Link to comment Share on other sites More sharing options...
BAZ Posted September 17, 2020 Share Posted September 17, 2020 I thought the Iridiums had all been de-orbited. I could be wrong and frequently am. 😂 Link to comment Share on other sites More sharing options...
tuckstar Posted September 17, 2020 Share Posted September 17, 2020 There are still a few in orbit. At least they are listed on heavens above. But don't think they are still operational. BAZ 1 Link to comment Share on other sites More sharing options...
Orion Posted September 27, 2020 Share Posted September 27, 2020 Some non Iridium satellites can also cause a flare. Earlier in the year, I saw one of the cargo ships to the ISS make a strong flare. I was following it through a William Optics GT81 connected to a Canon 1100D. Had I been on video mode, I would have had the flash, but I was shooting in fast burst mode to attempt to get better details (still tiny) on a lucky shot. It's so long ago, I've now forgotten what day it was to trace back to have a look at the data. Probably find out the date of the space craft visit to ISS then look for it in my hoard of data. BAZ 1 Link to comment Share on other sites More sharing options...
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