10 satellite tracks, not a Starlink train, in a single 3-minute sub.
What do I win???
😀
📷 2025-09-30_05-52-05_R_-10.00_180.00s_5.84_0024.jpg
Is this a record??? LOL
Impressive! Must have been shortly after nautical twilight or something 😄
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Indeed it was! I am guessing that means they are more likely to reflect light from the rising sun?
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Daniel Cimbora · Oct 1, 2025, 02:38 AM
Indeed it was! I am guessing that means they are more likely to reflect light from the rising sun?
Yup. Shortly after sunset and before sunrise they are illuminated because they’re 100+ miles up. Towards the middle of the night they’re completely blocked from sunlight when they’re overhead. It’s cool sometimes to see when one “vanishes” as it hits that threshold.
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Yep! I’ve usually only seen one or two per sub though so you must be near the equator or over a popular spot!
Sadly, at my latitude that’s an average June sub around the pole.
The most annoying ones are the super high orbit/slow movers that can ruin multiple subs.
I can see the title of the poster now…
YOUR SENSOR on LONG SUBS
I always find it interesting how folks complain so much about starlink. (This is not a jab at op at all) Dusk is hell, for sure…. but once they disappear in the earths shadow, they don’t show up at all. The first gens were pretty reflective, but I know they did some work to make them far less visible, and the first gen satellites have since fallen from the sky.
Purely for science, I took a couple hour long luminance subs last fall on Leo Triplet. Not a single starlink satellite was detected in either sub. On the contrary though, I found nearly every rock floating in space lol.
📷 AP26MC_Snapshot_2025-02-28_22-37-23_Lum_-10.10_3600.00s_0001.png
No less 3 dozen asteroids floating through that image, bright as hell lol
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Brian Puhl · Oct 1, 2025 at 02:00 PM
I always find it interesting how folks complain so much about starlink. (This is not a jab at op at all) Dusk is hell, for sure…. but once they disappear in the earths shadow, they don’t show up at all. The first gens were pretty reflective, but I know they did some work to make them far less visible, and the first gen satellites have since fallen from the sky.
Purely for science, I took a couple hour long luminance subs last fall on Leo Triplet. Not a single starlink satellite was detected in either sub. On the contrary though, I found nearly every rock floating in space lol.
📷 AP26MC_Snapshot_2025-02-28_22-37-23_Lum_-10.10_3600.00s_0001.png
No less 3 dozen asteroids floating through that image, bright as hell lol
That’s wild! I have yet to push past 5 mins. Must have had excellent guiding!
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Jeremy Kosick · Oct 1, 2025, 02:40 PM
That’s wild! I have yet to push past 5 mins. Must have had excellent guiding!
tbf, it was a poor seeing night. Part of why I decided to let her rip. I’ve never had an issue guiding with my EQ6’s. Takes a bit of love to tweak things, but they’ll hang with the big boys. I’m running an Esprit 150 on mine with arguably some of the best performance you’ll find from the mount.
Regarding the complains, the stacking app will eliminate them in the final image, don’t they?
I only manually remove airplanes or something as big as that.
Ali Alhawas · Oct 2, 2025, 06:49 AM
Regarding the complains, the stacking app will eliminate them in the final image, don’t they?
I only manually remove airplanes or something as big as that.
This is the main function of pixel rejection yes. Take 10 images, if only one of them has an offending pixel, it will get rejected in the stack. You can have hundreds of satellites drawn across your integration, as long as you have enough subs where those satellites don't exist, they will not make the final stack. The unavoidable issue with satellites often occurs at the geostationary belt, where all the satellites are lined up in the same path. Rejection becomes a nightmare because they light up the same location, dithering cannot fix this either. I did actually give up a project due to this once.
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