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First Hi-Res Photos of Ceres Are Here!
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| Watsisname | Date: Tuesday, 03.03.2015, 00:15 | Message # 16 |
 Galaxy Architect
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| We have to remember that the average albedo of Ceres is very low -- only 0.09, so what appears like a very bright or reflective surface is probably more exaggerated than in reality.
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| pzampella | Date: Friday, 06.03.2015, 16:39 | Message # 17 |
 Space Pilot
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| So Dawn is now orbiting Ceres, How much time until the bright spot mystery is definitely solve?
Edited by pzampella - Friday, 06.03.2015, 16:42 |
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| Voekoevaka | Date: Saturday, 14.03.2015, 00:17 | Message # 18 |
 World Builder
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| I found this mosaic on wikipedia.
One step before habing a global map.
Want some music of mine ? Please go here !
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| RockoRocks | Date: Saturday, 14.03.2015, 08:48 | Message # 19 |
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| Voekoevaka, is that the largest resolution available?
I will be inactive on this forum for the time being. Might come back eventually
AMD AR-3305M APU w/ Radeon HD 1.90 GHz 6,00 GB RAM
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| JohnVV | Date: Wednesday, 25.03.2015, 00:06 | Message # 20 |
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Space Tourist
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| For those interested
i posted a 8bit ( high-pass'ed ) dem and a 32 bit floating point ( meters RADII ) dem
--Original data is from :
-- the 512 vertex plate model
ftp://naif.jpl.nasa.gov/pub/naif/DAWN/misc/ceres/
two screenshots from the 512 mesh
 
hipass of the baked dem ( 0 to 360 mapping)
the 32 bit ISIS3 cub file ( DEMPREPED)
https://drive.google.com/file....sharing
in 0 to 360 long at 8ppd
this looks to be the default for images from the dawn team
some relevant links
CelestiaMatters
http://forum.celestialmatters.org/viewtopic.php?f=4&t=741
UMSF
http://www.unmannedspaceflight.com/index.php?showtopic=7960
http://www.unmannedspaceflight.com/index.php?showtopic=7789
Edited by JohnVV - Wednesday, 25.03.2015, 00:08 |
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| SpaceEngineer | Date: Wednesday, 25.03.2015, 00:18 | Message # 21 |
 Author of Space Engine
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| It looks like this DEM is relative to the sphere. It is better to make it relative to the ellipsoid, and add right Oblateness parameter for Ceres into SE and Celestia. With this the DEM map will have better accuracy.
EDIT: Forgot the screenshot. Texture on polar regions is patched with uniform gray.
BTW brightness of the all texture should bу reduced to make the bright white spot really bright.
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| werdnaforever | Date: Wednesday, 25.03.2015, 02:18 | Message # 22 |
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| Either it's some metal, or...
Edited by werdnaforever - Wednesday, 25.03.2015, 02:18 |
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| FastFourierTransform | Date: Wednesday, 25.03.2015, 09:27 | Message # 23 |
 Pioneer
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| Quote Either it's some metal, or...
It's interesting because we are orbiting Ceres from two weeks and we haven't seen any new images of the surface since the rendevous
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| HarbingerDawn | Date: Wednesday, 25.03.2015, 09:45 | Message # 24 |
 Cosmic Curator
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| Quote FastFourierTransform (  ) It's interesting because we are orbiting Ceres from two weeks and we haven't seen any new images of the surface since the rendevous
Because Dawn is on the night side of the planet, it will be a while before it can take good images again.
All forum users, please read this!
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| Handbanana | Date: Wednesday, 25.03.2015, 23:01 | Message # 25 |
 Astronaut
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| Quote FastFourierTransform ( ) It's interesting because we are orbiting Ceres from two weeks and we haven't seen any new images of the surface since the rendevous
Quote HarbingerDawn ( ) Because Dawn is on the night side of the planet, it will be a while before it can take good images again.
This article explains why we haven't seen better photos yet:
http://www.popsci.com/why-no-close-ups-ceres
Tonight... you.
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| FastFourierTransform | Date: Monday, 30.03.2015, 18:08 | Message # 26 |
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Pioneer
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| Quote HarbingerDawn ( ) Because Dawn is on the night side of the planet, it will be a while before it can take good images again.
Wow, such a huge orbital period!! We have to wait a week more 
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| midtskogen | Date: Tuesday, 21.04.2015, 13:22 | Message # 28 |
 Star Engineer
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| Bright spots coming into view again:
NIL DIFFICILE VOLENTI
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| FastFourierTransform | Date: Monday, 08.06.2015, 16:29 | Message # 29 |
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Pioneer
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| With the new images, the brigh region of the big spot is getting clearer so I have redone my aprox calculations.
Been the crater 92 km in diameter and taking, some not very accurate measurements of the last image released by Dawn, on Geogebra
I can tell that the shining region is at max 9,3 km wide!!
As I said here the apparent size of the bright spot would shrink with every more accurate image of the crater. The last rough calculation showed a bright spot of 14,5 Km.
How big that thing acctually is?  Added (23.04.2015, 22:20)
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I've immagined the bright spot like this, at near distances. The image is a salt deposit in the bottom of a martian crater  Added (08.06.2015, 16:29)
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First Mapping of the Dwarf world compelted!
Edited by FastFourierTransform - Wednesday, 22.04.2015, 11:22 |
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| Wwadlol | Date: Saturday, 13.06.2015, 22:39 | Message # 30 |
 Space Pilot
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| Close up of the bright spot.
http://news.discovery.com/space....610.htm
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