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Line of stars moving across sky?

  • 29-11-2019 10:02am
    #1
    Registered Users, Registered Users 2 Posts: 861 ✭✭✭


    Hi all,

    I was out for a run this morning at 6:00 and on my run I looked up and saw a 'star' moving across the sky. It moved just like a satellite. Then I noticed another directly following it then another. There was a line of 11 of these all moving perfectly aligned and evenly spaced from east to west at about 6:25.
    At arms length away they would have been spaced about a foot apart.

    Does anyone have any idea what they could have been?


Comments

  • Closed Accounts Posts: 1,385 ✭✭✭ThunderCat


    Hi all,

    I was out for a run this morning at 6:00 and on my run I looked up and saw a 'star' moving across the sky. It moved just like a satellite. Then I noticed another directly following it then another. There was a line of 11 of these all moving perfectly aligned and evenly spaced from east to west at about 6:25.
    At arms length away they would have been spaced about a foot apart.

    Does anyone have any idea what they could have been?



    At a guess it may have been the Starlink Satellites belonging to Elon Musk's SpaceX that were launched recently. Very cool if so, must keep an eye out myself.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    Wow, yes, this was definitely Starlink. I gotta get out and see it, possibly right now!

    It seems the whole second constellation is passing over us each morning at present, between 5.00am and 7.00am. All 60 of them of them go over, along with several pieces of Falcon 9 debris. The window is longer than a single orbit so we get to see most of them twice, for a total of over 100 sightings yesterday and 125 today! That said, they start off around mag. 6 which would be a difficult spot, but get down to mag. 2-3 after 6am. And although they are spread out across the orbit, they are currently strongly clustered so that yesterday there would have been one every few seconds between 6.15 am and 6.25 am, giving a "string of pearls" appearance. Today, Saturday 30-Nov, the string of pearls goes over twice with the brighter second sighting between 6.40 and 6.50 am and it will pass almost directly overhead from west to east at mag 2.6.

    heavens-above has got the schedule up...
    Don't forget to set your location and time zone. Half a chance of clear weather for the next few days, so worth trying to catch. In the long run I don't know how the schedule evolves but the orbit looks similar to the ISS so maybe they come around periodically (but I'd imagine more often than the few weeks between ISS returns). Also, I guess the string of pearls will become more spread out over time. Just looking at the live simulation by eye, it looks to me like the orbit takes them up to latitude 53 or 54, so they have the potential to pass directly overhead in Ireland. Right, gotta go catch 'em!


  • Registered Users, Registered Users 2 Posts: 527 ✭✭✭MeTheMan


    Seen similar yesterday morning. Around 6 in the morning. 4 heading in a line evenly spaced towards East. Then two slightly to each side of the line then a trailing one after that.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    A pox on Irish weather! (How many times has that been said?)

    Got a good whole-sky viewing spot at 6.30. A clearance had set in from the east (and a chill wind with it) but the rest of the sky was clouded out. There was already sunlight in the east so no chance of seeing mag. 2-3 that low down. All I caught was a stubbed toe and slightly twisted knee before I remembered to use the phone torch. :pac:

    P.S. Forgot to post this "how to spot" link earlier ... https://www.space.com/see-spacex-starlink-satellites-in-night-sky.html


  • Registered Users, Registered Users 2 Posts: 6,341 ✭✭✭emo72


    I wouldn't be getting too excited about starlink. The sky will soon be full of them. Already it's causing difficulties for some astronomers. Basically space junk filling the sky ruining photography by streaking through photographs.


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  • Registered Users, Registered Users 2 Posts: 30,428 ✭✭✭✭Wanderer78


    what is the overall aim of the project?


  • Closed Accounts Posts: 130 ✭✭Rashers Big Log


    Wanderer78 wrote: »
    what is the overall aim of the project?

    As is always the case with a Musk venture/ scam the overall aim is self promotion, using government subsidies to keep his flailing Ponzi scheme afloat and personal enrichment

    This is a good link to learn more about Musk’s carnival barking. https://elonmusk.today/


  • Administrators, Computer Games Moderators, Sports Moderators Posts: 32,529 Admin ✭✭✭✭✭Mickeroo


    Wanderer78 wrote: »
    what is the overall aim of the project?

    It's for a satellite based Internet service.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    Clouded out again this morning. :(

    I don't think I'm destined to see these things. Last chance for the time being is tomorrow (3rd Dec), 6.20 - 6.30am.

    Meanwhile: https://www.cbc.ca/news/technology/spacex-starlink-astronomers-1.5378769


  • Registered Users, Registered Users 2 Posts: 30,428 ✭✭✭✭Wanderer78


    Are they passing over in the evenings as well, at around 6ish, seen something last night?


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  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306




  • Registered Users, Registered Users 2 Posts: 6,145 ✭✭✭Princess Calla


    Wanderer78 wrote: »
    Are they passing over in the evenings as well, at around 6ish, seen something last night?

    So did I, around 18:30?

    I only noticed one though, but it was freezing so wasn't hanging about outside.


  • Registered Users, Registered Users 2 Posts: 2,181 ✭✭✭Sparko


    Wanderer78 wrote: »
    Are they passing over in the evenings as well, at around 6ish, seen something last night?

    The ISS was visible between 18.12 and 18.16 last night - could have been that?


  • Registered Users, Registered Users 2 Posts: 6,145 ✭✭✭Princess Calla


    Sparko wrote: »
    The ISS was visible between 18.12 and 18.16 last night - could have been that?

    Yeah maybe it was a bit earlier than I thought. I was going to point it out to himself and the kids but they all think I'm already crazy :) I presume it's easily visible with the naked eye?

    Sorry I didn't now.

    Sorry for the following q's as I'm sure it's answered repeatedly but is there an easy website that shows the times of the flights as the 4 yo loves stargazing. He'd love the idea of seeing something extra :)


  • Registered Users, Registered Users 2 Posts: 1,280 ✭✭✭Oops!


    That was the ISS you saw yesterday evening, seen it myself.


  • Registered Users, Registered Users 2 Posts: 1,499 ✭✭✭Yester


    ps200306 wrote: »
    Clouded out again this morning. :(

    I don't think I'm destined to see these things. Last chance for the time being is tomorrow (3rd Dec), 6.20 - 6.30am.

    Meanwhile: https://www.cbc.ca/news/technology/spacex-starlink-astronomers-1.5378769

    Cool. Looks like I'll be up early tomorrow morning. Heres hoping for clear skies.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    Sorry for the following q's as I'm sure it's answered repeatedly but is there an easy website that shows the times of the flights as the 4 yo loves stargazing. He'd love the idea of seeing something extra :)


    https://www.heavens-above.com/


    Don't forget to set your location (top right hand side) in order to get correct information. Only needs to be set roughly, e.g. Dublin etc.


    The ISS is by far the brightest of them all, and is going over twice each evening at the moment. Nice and early -- perfect for a youngster. Look for the lowest brightness (mag.) numbers. -2 or -3 is very bright. I always try to show beginning skywatchers the ISS and tell them it's half a dozen people travelling at 28,000 km/h.


    https://www.heavens-above.com/PassSummary.aspx?satid=25544&lat=53.3498&lng=-6.2603&loc=Dublin&alt=0&tz=GMT

    e.g. 5.24 pm this evening:

    M5OWTn6.png?1


  • Registered Users, Registered Users 2 Posts: 6,145 ✭✭✭Princess Calla


    ps200306 wrote: »
    https://www.heavens-above.com/


    Don't forget to set your location (top right hand side) in order to get correct information. Only needs to be set roughly, e.g. Dublin etc.


    The ISS is by far the brightest of them all, and is going over twice each evening at the moment. Nice and early -- perfect for a youngster. Look for the lowest brightness (mag.) numbers. -2 or -3 is very bright. I always try to show beginning skywatchers the ISS and tell them it's half a dozen people travelling at 28,000 km/h.


    https://www.heavens-above.com/PassSummary.aspx?satid=25544&lat=53.3498&lng=-6.2603&loc=Dublin&alt=0&tz=GMT

    e.g. 5.24 pm this evening:

    M5OWTn6.png?1

    Ah brilliant thank you, fingers crossed for clear skies :)


  • Registered Users, Registered Users 2 Posts: 6,145 ✭✭✭Princess Calla


    Daddy, daddy I just saw the SPACE station... It was really bright, then it got dark and I couldn't see it any more..... It had Ass-Tro-Nauts in it TOO
    !!!

    :) cheers for the heads up :)


  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    Incredible, what a sight! First time seeing it, thank you so much for the heads up! Not a cloud in the sky! :)


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  • Registered Users, Registered Users 2 Posts: 1,224 ✭✭✭zerosugarbuzz


    g0g wrote: »
    Incredible, what a sight! First time seeing it, thank you so much for the heads up! Not a cloud in the sky! :)

    Where are you seeing it from?


  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    Where are you seeing it from?
    Bray, my garden. At one point I think I counted 10 very clearly visible to the naked eye at the same time.


  • Registered Users, Registered Users 2 Posts: 1 patrickflem


    Did anyone see the sky tonight at 20.30 literally like every star in the sky was moving at a rapid rate I never seen anything like it I tracked one constellation of stars from a distance come in fast them after about 2 minutes the whole sky stopped the way it should be and no I was not seeing things


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    Did anyone see the sky tonight at 20.30 literally like every star in the sky was moving at a rapid rate I never seen anything like it I tracked one constellation of stars from a distance come in fast them after about 2 minutes the whole sky stopped the way it should be and no I was not seeing things
    I'm gonna hazard a guess it wasn't a change to the Earth's rotation or the proper motion of the stars. I'll hazard another guess that it was partly cloudy with a high wind. That can produce an extremely compelling optical illusion. Then it either cleared or you managed to fix your gaze on one particular spot and the illusion went away.


  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    Excellent view of Starlink last night. Passing again tonight around 17:30 if no cloud cover


  • Registered Users, Registered Users 2 Posts: 2,651 ✭✭✭US2


    Bit too cloudy and bright for me on that run, anyone see them?

    Got that "the heavens above" app. Brilliant.


  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    This evening looks really busy from 1800-1815 and in fact a good few 1730-1800 too if light is dark enough. Directly overheard going West to East. Looks like a recent batch all very close together.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    Are those predictions still accurate? I went out to spot them a couple of weeks ago and only saw two. I was wondering if the sats had spread out along their orbit by now. I'll give it another shot this evening and see what I see. There's another launch due tomorrow, but I think it'll be the darker painted sats designed to minimise light pollution.


  • Registered Users, Registered Users 2 Posts: 228 ✭✭Annd9


    Happening right now over Dublin


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  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    ps200306 wrote: »
    Are those predictions still accurate? I went out to spot them a couple of weeks ago and only saw two. I was wondering if the sats had spread out along their orbit by now. I'll give it another shot this evening and see what I see. There's another launch due tomorrow, but I think it'll be the darker painted sats designed to minimise light pollution.
    The predictions are exact! Only question is cloud cover or light pollution near to you. Heavens Above app is perfect for it


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    HOE. LEE. CRAP.

    I take it back. That was amazing. Didn't even venture further than the back garden. Gave myself ten minutes of dark adjustment time. Faced east (the darker direction) and looked up as high as I could. Forty sats passed through the zenith from 18:02 to 18:11 or so. Quite a sight! Thanks for the tip.

    EDIT: Slightly later for the main event tomorrow, 18:28 to 18:36 and sats not as high in the sky, around 70 degrees. Will make a difference in my suburban sky but should still be visible, weather allowing.


  • Registered Users, Registered Users 2 Posts: 772 ✭✭✭baaba maal


    ps200306 wrote: »
    HOE. LEE. CRAP.

    I take it back. That was amazing. Didn't even venture further than the back garden. Gave myself ten minutes of dark adjustment time. Faced east (the darker direction) and looked up as high as I could. Forty sats passed through the zenith from 18:02 to 18:11 or so. Quite a sight! Thanks for the tip.

    EDIT: Slightly later for the main event tomorrow, 18:28 to 18:36 and sats not as high in the sky, around 70 degrees. Will make a difference in my suburban sky but should still be visible, weather allowing.

    It was absolutely stunning to see them last night- I only saw them by accident and then checked here-I am conflicted by enjoying seeing them and then reading that there are eventually going to be thousands of them.


  • Registered Users, Registered Users 2 Posts: 1,499 ✭✭✭Yester


    I would love to see this but too much cloud cover last night. Not looking good for this evening either.


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    baaba maal wrote: »
    It was absolutely stunning to see them last night- I only saw them by accident and then checked here-I am conflicted by enjoying seeing them and then reading that there are eventually going to be thousands of them.
    Same here. It's awesome seeing something that the ancients would have thought was a divine visitation had they seen it. But also, you know it's junk and there's going to be a lot more of it, and you definitely don't want it mucking up the view every night like a forest of celestial mobile masts.


  • Registered Users, Registered Users 2 Posts: 1,499 ✭✭✭Yester


    Saw them this evening. It is indeed an impressive sight. Thanks for the heads up.


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  • Registered Users, Registered Users 2 Posts: 2,100 ✭✭✭tuisginideach


    What time tomorrow???


  • Registered Users, Registered Users 2 Posts: 2,807 ✭✭✭g0g


    What time tomorrow???
    0705-0710 tomorrow morning could be ok if still dark enough. Evening doesn't look as good for timing. Download the Heavens Above app as is mentioned above. You can add your location for exact predictions


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,563 Mod ✭✭✭✭Capt'n Midnight


    https://spaceflightnow.com/launch-schedule/
    Jan. 29Falcon 9 • Starlink 3
    Launch time: 1406 GMT (9:06 a.m. EST)
    Launch site: SLC-40, Cape Canaveral Air Force Station, Florida
    A SpaceX Falcon 9 rocket is expected to launch the fourth batch of approximately 60 satellites for SpaceX’s Starlink broadband network, a mission designated Starlink 3. Delayed from Jan. 20 and Jan. 21. Scrubbed on Jan. 27 by upper level winds. [Jan. 27]


  • Registered Users, Registered Users 2 Posts: 8,809 ✭✭✭Hector Savage


    Im surprised people are so excited about this here, his fleet of satellites are going to ruin dark sky sites and astrophotography ...


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    It's kind of like those glitzy parades in Pyongyang. You can agree it's an amazing spectacle while still being filled with horror. :pac:


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  • Registered Users, Registered Users 2 Posts: 772 ✭✭✭baaba maal


    ps200306 wrote: »
    It's kind of like those glitzy parades in Pyongyang. You can agree it's an amazing spectacle while still being filled with horror. :pac:

    Excellent analogy!

    Looking at 60 is "wow". Looking at 42,000 will be like the background to a JG Ballard novel.


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,563 Mod ✭✭✭✭Capt'n Midnight


    _110800770_2-3-2020-st27.jpg

    One Web / Airbus chucks up their first batch of 34 out of 648 satellites.
    https://www.bbc.com/news/science-environment-51405079


  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭ps200306


    How many different "internets in the sky" do we actually need? :confused:


  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,563 Mod ✭✭✭✭Capt'n Midnight


    ps200306 wrote: »
    How many different "internets in the sky" do we actually need? :confused:

    When advised not to become a lawyer because the profession was crowded Daniel Webster replied "There's always room at the top"


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