Discovery Eris (dwarf planet)

-


animation showing movement of eris on images used discover it. eris indicated arrow. 3 frames taken on period of 3 hours.


eris discovered team of mike brown, chad trujillo, , david rabinowitz on january 5, 2005, images taken on october 21, 2003. discovery announced on july 29, 2005, same day makemake , 2 days after haumea, due in part events later lead controversy haumea. search team had been systematically scanning large outer solar system bodies several years, , had been involved in discovery of several other large tnos, including 50000 quaoar, 90482 orcus, , 90377 sedna.


routine observations taken team on october 21, 2003, using 1.2 m samuel oschin schmidt telescope @ palomar observatory, california, image of eris not discovered @ point due slow motion across sky: team s automatic image-searching software excluded objects moving @ less 1.5 arcseconds per hour reduce number of false positives returned. when sedna discovered, moving @ 1.75 arcsec/h, , in light of team reanalyzed old data lower limit on angular motion, sorting through excluded images eye. in january 2005, re-analysis revealed eris s slow motion against background stars.


follow-up observations carried out make preliminary determination of eris s orbit, allowed object s distance estimated. team had planned delay announcing discoveries of bright objects eris , makemake until further observations , calculations complete, announced them both on july 29 when discovery of large tno had been tracking, haumea, controversially announced on july 27 different team in spain.


precovery images of eris have been identified september 3, 1954.


more observations released in october 2005 revealed eris has moon, later named dysnomia. observations of dysnomia s orbit permitted scientists determine mass of eris, in june 2007 calculated 7022166000000000000♠(1.66±0.02)×10 kg, 6999270000000000000♠27%±2% greater pluto s.








Comments

Post a Comment

Popular posts from this blog

In literature Socialist realism in Romania

-
1 in literature 1.1 prose works 1.2 poetry 1.3 drama in literature the symbolic debut of socialist realism in literature, official ideology, took place in january 1948, when 3 articles signed sorin toma published in scînteia. titled poetry of putrefaction or putrefaction of poetry , dealt poetic works of tudor arghezi. language used extremely harsh , marked complete break interwar values: foul-smelling vocabulary [...], arghezi in poetry picasso did in painting, introducing excrement artistic material... 1 finds bits of real beauty here , there in arghezi s poetry. in 1950, mihai eminescu school of literature founded, aim of forming new generation of writers in romanian people s republic. in article published in viaţa românească (nr. 3 of 1951), mihai beniuc, member of writers union of romania, offered definition of socialist-realist poet: must philosopher familiar profound ideas of age [...], toward marx, engels, lenin , stalin opened way [...], , activist in service of ideas. ne...
Read more

Flipnote creation Flipnote Studio 3D

-
the main screen of flipnote creation interface. largely similar predecessor, flipnote studio 3d allows users create short animated sketches known flipnotes. flipnotes can made of hundreds of frames, , can played @ variety of speeds. software offers users option create 3d flipnotes drawing different parts of animation on 3 layers. the main tools include pen, eraser, , paintbrush. new flipnotes studio 3d tools draw shapes, fill enclosed areas (paint bucket), , insert text. application features limited color palette, including black, white, red, blue, green, , yellow. slight improvement upon flipnote studio, didn t include yellow , green selectable colors, still possible using color mixing. selection tool used copy , manipulate parts of frame. users can use 3ds system s camera , microphone add audio , photos creations. these animations can either shared on application s native online community, or exporting them gif or avi files.
Read more

How CURP codes are built Unique Population Registry Code

-
1 how curp codes built 1.1 exceptions 1.1.1 Ñ 1.1.2 common given names 1.1.3 catalog of inappropriate words how curp codes built to understand how curp codes built, 1 must first understand hispano american naming conventions. full names in spanish-speaking countries (including mexican full names) consist of 3 elements: the curp code composed of 18 characters assigned follows: the first surname s initial , first inside vowel; the second surname s initial (or letter x if, foreign nationals, person has no second surname); the first given name s initial; date of birth (2 digits year, 2 digits month, , 2 digits day); a one-letter gender indicator (h male (hombre in spanish) or m female (mujer in spanish)); a two-letter code state person born; persons born abroad, code ne (nacido en el extranjero) used; the first surname s second inside consonant; the second surname s second inside consonant; the first given name s second inside consonant; and two characters ranging 0-9 people born before...
Read more