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The Great Morning Planet show,running until May 30th.

  • 12-05-2011 1:59am
    #1
    Closed Accounts Posts: 1,059 ✭✭✭


    Nice short video from NASA about what even those depending on Naked eye only (such as Myself) can enjoy.
    is this what is commonly known as the Summer triangle or unique to this Year?



Comments

  • Registered Users, Registered Users 2 Posts: 108 ✭✭dublin_daveyboy


    Looking forward to that,not very often we get to observe 4 planets in one go,and ive yet to look at mars,venus and jupiter with my c8 because of how early i have to get up but this is worth it.


  • Moderators, Science, Health & Environment Moderators Posts: 3,645 Mod ✭✭✭✭Beeker


    Now thats worth getting up for!:)


  • Registered Users, Registered Users 2 Posts: 7,816 ✭✭✭Calibos


    The problem is the angle of the ecliptic from our latitude has the planets rising only a short time before the sun clears the horizon and they are very very low. Even the mighty bright Jupiter and Venus will be hard to see never mind dim Mars and even dimmer Mercury. This will be a great show for people from Spain and North America southwards and in the Southern Hemisphere but its all but invisible to us up here in the frozen north :D


  • Closed Accounts Posts: 1,059 ✭✭✭clln


    Calibos wrote: »
    The problem is the angle of the ecliptic from our latitude has the planets rising only a short time before the sun clears the horizon and they are very very low. Even the mighty bright Jupiter and Venus will be hard to see never mind dim Mars and even dimmer Mercury. This will be a great show for people from Spain and North America southwards and in the Southern Hemisphere but its all but invisible to us up here in the frozen north :D

    Hoi Spoilsport that was part of the new Govt's Job thrust!
    get People out of bed early!!!!!
    i notice you forgot to answer the question is this a variant on the Summer Triangle,or unique this Year??
    Well???:pac:


  • Registered Users, Registered Users 2 Posts: 2,921 ✭✭✭2 stroke


    Surely this isn't a good thing. 4 planets the moon and the sun all at the same site of the earth. Has to have an affect on weather, tides & earthquakes.


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  • Closed Accounts Posts: 3,772 ✭✭✭Cú Giobach


    clln wrote: »
    Hoi Spoilsport that was part of the new Govt's Job thrust!
    get People out of bed early!!!!!
    i notice you forgot to answer the question is this a variant on the Summer Triangle,or unique this Year??
    Well???:pac:
    The Summer Triangle is made up of the stars Deneb (in Cygnus), Altair (in Aquila), and Vega (in Lyra), and passes over from spring till autumn each year.
    The planets are all constantly moving with regard to each other and us, so are in different positions each year (each day really).

    I agree with Calibos that this isn't much of an event, at a guess I'd imagine they aren't much more than 4 to 7 degrees above the horizon at sunrise when the sky is very bright.


  • Closed Accounts Posts: 3,772 ✭✭✭Cú Giobach


    2 stroke wrote: »
    Surely this isn't a good thing. 4 planets the moon and the sun all at the same site of the earth. Has to have an affect on weather, tides & earthquakes.
    They're not at the same site, only lined up.
    Mars and Jupiter are off in the distance on the far side of the sun (especially Jupiter) Venus is also on the other side of the Sun heading away from us, and little tiny Mercury is about the same distance as the Sun around 90 million miles.
    Nothing to worry about. :D


  • Closed Accounts Posts: 1,059 ✭✭✭clln


    The Summer Triangle is made up of the stars Deneb (in Cygnus), Altair (in Aquila), and Vega (in Lyra), and passes over from spring till autumn each year.
    The planets are all constantly moving with regard to each other and us, so are in different positions each year (each day really).

    I agree with Calibos that this isn't much of an event, at a guess I'd imagine they aren't much more than 4 to 7 degrees above the horizon at sunrise when the sky is very bright.

    Ah thank You CU,and of course Calibos(i never doubt either of your expertise) but this is what confused me; from 2010:

    http://www.space.com/8839-check-planetary-triangle-forming-evening-sky.html


  • Closed Accounts Posts: 1,059 ✭✭✭clln


    I just signed up to Space.coms email alerts.
    according to Avira Anti Virus a virus was found.
    like all Anti virus this could be a mistake on Avira's part,but it serves me well usually!

    The link above is safe to open and read according to Avira, just signing up to the email alerts is the problem.


  • Registered Users, Registered Users 2 Posts: 2,103 ✭✭✭derra


    2 stroke wrote: »
    Surely this isn't a good thing. 4 planets the moon and the sun all at the same site of the earth. Has to have an affect on weather, tides & earthquakes.

    Kent Brockman: Professor, would you say it’s time for our viewers to panic?
    Professor: Mmm, yes I would, Kent.

    yesidokent.jpg


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  • Registered Users, Registered Users 2 Posts: 690 ✭✭✭CO19


    Why do the planets only do this at certain times of the year and only for a few days ?


  • Closed Accounts Posts: 3,772 ✭✭✭Cú Giobach


    CO19 wrote: »
    Why do the planets only do this at certain times of the year and only for a few days ?
    Mercury orbits the Sun once every 88 days,
    Venus once every 225 days,
    Earth every 365 days,
    Mars every 687 days,
    Jupiter every 12 years,
    Saturn every 29 years.
    We are on a moving platform watching "little lights" all moving at different speeds. Consequently these "lights" are always moving with respect to each other and us, sometimes they line up sometimes not.
    You get different combinations at different times each year.


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


    Beeker wrote: »
    Now thats worth getting up for!:)
    Or at this time of year , staying up late for ;)


  • Registered Users, Registered Users 2 Posts: 690 ✭✭✭CO19


    Might seem like a stupid question but does the Earth move up and down as it rotates ? because if it doesn't how does the sun appear high during the day then sets very low down ?


  • Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    CO19 wrote: »
    Might seem like a stupid question but does the Earth move up and down as it rotates ? because if it doesn't how does the sun appear high during the day then sets very low down ?
    Planet earth rotates. Thats how the sun appears high during the day then sets very low down. As for the seasons, the earth changes the angle at which earth rotates (axis).


  • Registered Users, Registered Users 2 Posts: 690 ✭✭✭CO19


    So the Earth stays in the same position and just spins around,doesn't move about at all ?


  • Registered Users, Registered Users 2 Posts: 9,248 ✭✭✭Plug


    The sun dosen't move, it stays in the same spot but it will only wobble a small bit. The earth goes around the sun, it takes 365 days roughly. The earth itself also spins, it will spin once in 24 hours and thats what a day is.
    earth_orbit_sun.gif


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