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Thread: The Solar System: September, AD 15605

  1. #21
      töff is offline
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    I always wanted to make an orrery in 3D. I have some cool ideas for a 3D piece for this map ... but I think I better stick with something I can accomplish in under 500 hours.

  2. #22
      töff is offline
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    I have ecliptic longitudes (and latitudes!) for all the planets incl. Sedna, Eris, Pluto and the top dozen or so asteroids incl. Ceres.

    I was able to set Starry Night to view from "sun center" and set the date to 15605-09-15-1200.

    The info is overkill ... Here's Earth ...
    Code:
    Looking:	south west (223 degrees from North)
    :	44 degrees from horizon
    Field of View:	100 degrees (width)
    :	92 degrees (height)
    Limiting Magnitude:	0.4
    Observing Conditions:	Clear Sky Clock Online...
    Universal Time:	9/15/15605 12:10:15
    Local Time:	9/15/15605 12:10:15
    Julian Day:	7420927.00712
    Sidereal Time:	15h 57m 24.6s
    Delta T:	567158.2 seconds
    Location:	Sun centre
    Latitude:	0°  N
    Longitude:	0°  E
    Heliocentric X:	0 meters
    Y:	0 meters
    Z:	-0 meters
    Distance from Sun:	0 meters
    Angle from Ecliptic Plane:	-55.749 arcminutes
    Phi:	86.580 degrees
    
    Name:	Earth
    Object type:	Planet
    Rises:	9/3/15605 at 01:14:13
    Transit:	9/9/15605 at 20:51:30
    Sets:	9/16/15605 at 16:22:16
    Constellation name:	Virgo
    Constellation common name:	The Maiden
    Constellation possessive form:	Virginis
    Azimuth:	263° 16.312'
    Altitude:	15° 24.993'
    Hour Angle (JNow):	-8h 46m 57.6s
    Elongation:	105° East
    RA (JNow):	0h 44.373m
    Dec (JNow):	4° 36.109'
    RA (J2000):	11h 58.863m
    Dec (J2000):	0° 44.030'
    Ecliptic longitude:	11° 59.917'
    Ecliptic latitude:	-0° 0.000'
    Galactic longitude:	275° 12.321'
    Galactic latitude:	60° 44.611'
    Distance from observer:	1.0077 au
    Distance from Sun:	1.0077 au
    Radius:	6378 km
    Apparent magnitude:	-3.82
    Orbit size:	1.0000 au
    Angular size:	17 arcseconds
    Disk illumination:	100%
    Planet oblateness:	0.00
    Mass:	5.97e+24 Kilograms
    Max magnitude from Earth:	0.00
    Length of sidereal day:	23.9345 hours
    Length of solar day:	24.0000 hours
    Length of year:	365.24 days
    Description:	Earth, our home planet is the only planet known to harbour life and from fossil evidence has done so for 3.5 billion years of its 4.5 billion year life span. The surface of Earth is constantly being remade by atmospheric and tectonic processes, so unlike the Moon and other solar system bodies, the Earth is not marked by craters. Over seventy percent of Earth‘s surface is covered by water. The atmosphere of Earth is 77% nitrogen and 21% oxygen. Until the Apollo program in the late 1960‘s, we had never seen a view of Earth from the outside. The Apollo pictures reveal what a fragile and wonderful world we live on, a spark of life in the barren emptiness of space.
    Heliocentric X:	0.98568 au
    Y:	0.20949 au
    Z:	-14 km
    I think all I really need is this part ...
    Code:
    Ecliptic longitude:	11° 59.917'
    Ecliptic latitude:	-0° 0.000'
    Of course Earth's ecliptic latitude is 0. Earth orbit defines the ecliptic.

    But, this being a flat map, I dunno if I will even include altitude above or below the ecliptic plane. Maybe as extra info. Maybe not.

  3. #23
      töff is offline
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    It's time to start laying out my workspace. I can print up to 11x17, and trim down to 10.5x16.5 with a bleed. But I have to count how many circles to fit into that space ... and I found this awesome pic ...
    Attached Thumbnails Attached Thumbnails The Solar System: September, AD 15605-solarmap.png  

  4. #24
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    Whoa... that is slick, informative, and useful all at the same time. Very nice find!
    Bill Stickers is innocent! It isn't Bill's fault that he was hanging out in the wrong place.

    Please make an effort to tag all threads. This will greatly enhance the usability of the forums.



  5. #25
      töff is offline
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    Also, I had an idea. The circles to not need to be centered in the space. I can offset the whole thing, and crop down to the necessary elements, like the pic below shows all it needs to show, but the sun ain't nowhere near center. I think this will give the piece a nice touch ... a jaunty angle ... but it costs me some of the "celestial spheres" flavor ... oh well ... trade-offs ... I hope the celestial sphere flavor will be more in the graphic style rather than orbits centered on the page. Offsetting and cropping will allow me to cram more content into the space I have, because I won't be wasting space on empty stretches of orbit.

    Of course, to do this, I have to plot out the circles first, and get all the elements in place ... well, the outermost ones, anyway. Obviously the inner planets won't affect this cropping idea.
    Attached Thumbnails Attached Thumbnails The Solar System: September, AD 15605-planets-outer.jpg  

  6. #26
      töff is offline
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    Whoa... that is slick, informative, and useful all at the same time. Very nice find!
    Yeh, I thought the heliosphere was a lot further out ... and the Oort cloud closer in. I just realized I bollocksed something in a previous chapter ... a guy out in the Oort Cloud received a message from Earth that would have taken many months to get there. Maybe I can come up with a clever explanation. We'll see.

    Anyway, did you notice the logarithmic scale there?

  7. #27
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    Post I recognize that Solomap...

    Hey Toff, I just noticed that "solomap - awesome pic you just found!"

    A local copier salesman brought me that file and I printed it at 30 x 48 inches for him about two months ago. Strange to see it again, here!

    GP
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    http://www.gamer-printshop.com

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  8. #28
      töff is offline
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    printed it at 30 x 48 inches
    Cripes, I hope he had a hi-res version.

  9. #29
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    Quote Originally Posted by töff View Post
    Anyway, did you notice the logarithmic scale there?
    Absolutely! That really put a lot of it into perspective for me, and I thought it was a brilliant way to represent the vast distances that are involved.
    Bill Stickers is innocent! It isn't Bill's fault that he was hanging out in the wrong place.

    Please make an effort to tag all threads. This will greatly enhance the usability of the forums.



  10. #30
      töff is offline
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    brilliant way to represent the vast distances
    Whoever invented the logarithmic scale was pretty clever, yeh. It wasn't that artist, though. Newton? Leibniz? somebody before them? I dunno. I oughta wikipedia it. I like math and its history. [ Edit: here it is. ]

    Like I said, I intended neither a true scale (practically impossible) nor a logarithm. I intended to abstract scale completely as concentric, evenly-spaced rings. But I do hope to put a logartihmic legend on it somehow.
    Last edited by töff; 07-08-2008 at 01:28 PM.

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