 , is 1 @.@ 36 times as large and 0 @.@ 74 times as massive as Jupiter , meaning that the mean density is 0.36g / cm3 . It has a geometric albedo of 0 @.@ 35 in visible light .   = = Effect on its sun = =   Upsilon Andromedae b appears to be responsible for increased chromospheric activity on its parent star . Observations suggest that there is a " hot spot " on the star around 169 ° away from the sub @-@ planetary point . This may be the result of interactions between the magnetic fields of the planet and the star . The mechanism may be similar to that responsible for the activity of RS Canum Venaticorum variable stars , or the interaction between Jupiter and its moon Io .   = Daniel Radcliffe =   Daniel Jacob Radcliffe ( born 23 July 1989 ) is an English actor who rose to prominence as the title character in the Harry Potter film series . He made his acting debut at 10 years of age in BBC One 's 1999 television film David Copperfield , followed by his cinematic debut in 2001 's The Tailor of Panama . At age 11 , he was cast as Harry Potter in the first Harry Potter film , and starred in the series for 10 years until the release of the eighth and final film in 2011 .   Radcliffe began to branch out to stage acting in 2007 , starring in the London and New York productions of Equus , and in the 2011 Broadway revival of the musical How to Succeed in Business Without Really Trying . He starred in the 2012 horror film The Woman in Black , and played beat poet Allen Ginsberg in the 2013 independent film Kill Your Darlings .   He has contributed to many charities , including Demelza Hospice Care for Children , and The Trevor Project for suicide prevention among LGBTQ youth , which gave him its Hero Award in 2011 .   = = Early life = =   Radcliffe was born in West London , England . He is the only child of Alan George Radcliffe , a literary agent , and Marcia Jeannine Gresham ( née Marcia Gresham Jacobson ) , a casting agent who was involved in several films for the BBC , including The Inspector Lynley Mysteries and Walk Away and I Stumble . His father , who was raised in Banbridge , County Down , Northern Ireland , is from " a very working @-@ class " Protestant background . His mother is Jewish , and was born in South Africa and raised in Westcliff @-@ on @-@ Sea , Essex . Her family had originally come from Poland and Russia . Radcliffe 's parents had both acted as children .   In a 2012 interview , Radcliffe stated : " There was never [ religious ] faith in the house . I think of myself as being Jewish and Irish , despite the fact that I 'm English . " He has stated : " We were Christmas tree Jews " , and that he is " very proud of being Jewish " .   Radcliffe first expressed a desire to act at the age of five , and in December 1999 , aged 10 , he made his acting debut in BBC One 's televised two @-@ part adaptation of the Charles Dickens novel David Copperfield , portraying the title character as a young boy . He was educated at two independent schools for boys : Sussex House School , a day school in Chelsea 's Cadogan Square , and the City of London School , a day school on the North Bank of the River Thames in London 's financial district ( known as the City of London ) . Attending school became difficult for Radcliffe after the release of the first Harry Potter film , with some fellow pupils becoming hostile , though he says it was people just trying to " have a crack at the kid that plays Harry Potter " rather than jealousy .   As his acting career began to consume his schedule , Radcliffe continued his education through on @-@ set tutors . He admitted he was not very good at school , considering it useless and finding the work " really difficult . " He achieved A grades in the three AS @-@ level exams that he took in 2006 , but decided to take a break from education and did not go to college or university . Part of his reasoning was that he already knew he wanted to act and write , and that it would be difficult to have a normal college experience . " The paparazzi , they 'd love it , " he told Details magazine in 2007 . " If there were any parties going on , they 'd be tipped off as to where they were . "   = = Career = =   = = = Harry Potter = = =   In 2000 , producer David Heyman asked Radcliffe to audition for the role of Harry Potter for the film adaptation of Harry Potter and the Philosopher 's Stone , the best @-@ selling book by British author J. K. Rowling . Rowling had been searching for an unknown British actor to personify the character ,
Ġ, Ġis Ġ1 Ġ@ . @ Ġ36 Ġtimes Ġas Ġlarge Ġand Ġ0 Ġ@ . @ Ġ74 Ġtimes Ġas Ġmassive Ġas ĠJupiter Ġ, Ġmeaning Ġthat Ġthe Ġmean Ġdensity Ġis Ġ0 . 36 g Ġ/ Ġcm 3 Ġ. ĠIt Ġhas Ġa Ġgeometric Ġal bed o Ġof Ġ0 Ġ@ . @ Ġ35 Ġin Ġvisible Ġlight Ġ. Ġ Ġ Ġ= Ġ= ĠEffect Ġon Ġits Ġsun Ġ= Ġ= Ġ Ġ ĠUps ilon ĠAnd rom ed ae Ġb Ġappears Ġto Ġbe Ġresponsible Ġfor Ġincreased Ġchrom osp heric Ġactivity Ġon Ġits Ġparent Ġstar Ġ. ĠObserv ations Ġsuggest Ġthat Ġthere Ġis Ġa Ġ" Ġhot Ġspot Ġ" Ġon Ġthe Ġstar Ġaround Ġ169 ĠÂ° Ġaway Ġfrom Ġthe Ġsub Ġ@ - @ Ġplanetary Ġpoint Ġ. ĠThis Ġmay Ġbe Ġthe Ġresult Ġof Ġinteractions Ġbetween Ġthe Ġmagnetic Ġfields Ġof Ġthe Ġplanet Ġand Ġthe Ġstar Ġ. ĠThe Ġmechanism Ġmay Ġbe Ġsimilar Ġto Ġthat Ġresponsible Ġfor Ġthe Ġactivity Ġof ĠRS ĠCan um ĠVen atic orum Ġvariable Ġstars Ġ, Ġor Ġthe Ġinteraction Ġbetween ĠJupiter Ġand Ġits Ġmoon ĠIo Ġ. Ġ Ġ Ġ= ĠDaniel ĠRad cliffe Ġ= Ġ Ġ ĠDaniel ĠJacob ĠRad cliffe Ġ( Ġborn Ġ23 ĠJuly Ġ1989 Ġ) Ġis Ġan ĠEnglish Ġactor Ġwho Ġrose Ġto Ġprominence Ġas Ġthe Ġtitle Ġcharacter Ġin Ġthe ĠHarry ĠPotter Ġfilm Ġseries Ġ. ĠHe Ġmade Ġhis Ġacting Ġdebut Ġat Ġ10 Ġyears Ġof Ġage Ġin ĠBBC ĠOne Ġ' s Ġ1999 Ġtelevision Ġfilm ĠDavid ĠCopper field Ġ, Ġfollowed Ġby Ġhis Ġcinematic Ġdebut Ġin Ġ2001 Ġ' s ĠThe ĠTail or Ġof ĠPanama Ġ. ĠAt Ġage Ġ11 Ġ, Ġhe Ġwas Ġcast Ġas ĠHarry ĠPotter Ġin Ġthe Ġfirst ĠHarry ĠPotter Ġfilm Ġ, Ġand Ġstarred Ġin Ġthe Ġseries Ġfor Ġ10 Ġyears Ġuntil Ġthe Ġrelease Ġof Ġthe Ġeighth Ġand Ġfinal Ġfilm Ġin Ġ2011 Ġ. Ġ Ġ ĠRad cliffe Ġbegan Ġto Ġbranch Ġout Ġto Ġstage Ġacting Ġin Ġ2007 Ġ, Ġstarring Ġin Ġthe ĠLondon Ġand ĠNew ĠYork Ġproductions Ġof ĠEqu us Ġ, Ġand Ġin Ġthe Ġ2011 ĠBroadway Ġrevival Ġof Ġthe Ġmusical ĠHow Ġto ĠSuc ceed Ġin ĠBusiness ĠWithout ĠReally ĠTrying Ġ. ĠHe Ġstarred Ġin Ġthe Ġ2012 Ġhorror Ġfilm ĠThe ĠWoman Ġin ĠBlack Ġ, Ġand Ġplayed Ġbeat Ġpoet ĠAllen ĠGins berg Ġin Ġthe Ġ2013 Ġindependent Ġfilm ĠKill ĠYour ĠD arl ings Ġ. Ġ Ġ ĠHe Ġhas Ġcontributed Ġto Ġmany Ġcharities Ġ, Ġincluding ĠDem el za ĠHosp ice ĠCare Ġfor ĠChildren Ġ, Ġand ĠThe ĠTrevor ĠProject Ġfor Ġsuicide Ġprevention Ġamong ĠLGBTQ Ġyouth Ġ, Ġwhich Ġgave Ġhim Ġits ĠHero ĠAward Ġin Ġ2011 Ġ. Ġ Ġ Ġ= Ġ= ĠEarly Ġlife Ġ= Ġ= Ġ Ġ ĠRad cliffe Ġwas Ġborn Ġin ĠWest ĠLondon Ġ, ĠEngland Ġ. ĠHe Ġis Ġthe Ġonly Ġchild Ġof ĠAlan ĠGeorge ĠRad cliffe Ġ, Ġa Ġliterary Ġagent Ġ, Ġand ĠMarc ia ĠJe ann ine ĠG res ham Ġ( Ġn Ã©e ĠMarc ia ĠG res ham ĠJacob son Ġ) Ġ, Ġa Ġcasting Ġagent Ġwho Ġwas Ġinvolved Ġin Ġseveral Ġfilms Ġfor Ġthe ĠBBC Ġ, Ġincluding ĠThe ĠInspector ĠLyn ley ĠMysteries Ġand ĠWalk ĠAway Ġand ĠI ĠSt umble Ġ. ĠHis Ġfather Ġ, Ġwho Ġwas Ġraised Ġin ĠBan bridge Ġ, ĠCounty ĠDown Ġ, ĠNorthern ĠIreland Ġ, Ġis Ġfrom Ġ" Ġa Ġvery Ġworking Ġ@ - @ Ġclass Ġ" ĠProtestant Ġbackground Ġ. ĠHis Ġmother Ġis ĠJewish Ġ, Ġand Ġwas Ġborn Ġin ĠSouth ĠAfrica Ġand Ġraised Ġin ĠWest cl iff Ġ@ - @ Ġon Ġ@ - @ ĠSea Ġ, ĠEssex Ġ. ĠHer Ġfamily Ġhad Ġoriginally Ġcome Ġfrom ĠPoland Ġand ĠRussia Ġ. ĠRad cliffe Ġ' s Ġparents Ġhad Ġboth Ġacted Ġas Ġchildren Ġ. Ġ Ġ ĠIn Ġa Ġ2012 Ġinterview Ġ, ĠRad cliffe Ġstated Ġ: Ġ" ĠThere Ġwas Ġnever Ġ[ Ġreligious Ġ] Ġfaith Ġin Ġthe Ġhouse Ġ. ĠI Ġthink Ġof Ġmyself Ġas Ġbeing ĠJewish Ġand ĠIrish Ġ, Ġdespite Ġthe Ġfact Ġthat ĠI Ġ' m ĠEnglish Ġ. Ġ" ĠHe Ġhas Ġstated Ġ: Ġ" ĠWe Ġwere ĠChristmas Ġtree ĠJews Ġ" Ġ, Ġand Ġthat Ġhe Ġis Ġ" Ġvery Ġproud Ġof Ġbeing ĠJewish Ġ" Ġ. Ġ Ġ ĠRad cliffe Ġfirst Ġexpressed Ġa Ġdesire Ġto Ġact Ġat Ġthe Ġage Ġof Ġfive Ġ, Ġand Ġin ĠDecember Ġ1999 Ġ, Ġaged Ġ10 Ġ, Ġhe Ġmade Ġhis Ġacting Ġdebut Ġin ĠBBC ĠOne Ġ' s Ġtelevised Ġtwo Ġ@ - @ Ġpart Ġadaptation Ġof Ġthe ĠCharles ĠDickens Ġnovel ĠDavid ĠCopper field Ġ, Ġportraying Ġthe Ġtitle Ġcharacter Ġas Ġa Ġyoung Ġboy Ġ. ĠHe Ġwas Ġeducated Ġat Ġtwo Ġindependent Ġschools Ġfor Ġboys Ġ: ĠSussex ĠHouse ĠSchool Ġ, Ġa Ġday Ġschool Ġin ĠChelsea Ġ' s ĠCad ogan ĠSquare Ġ, Ġand Ġthe ĠCity Ġof ĠLondon ĠSchool Ġ, Ġa Ġday Ġschool Ġon Ġthe ĠNorth ĠBank Ġof Ġthe ĠRiver ĠThames Ġin ĠLondon Ġ' s Ġfinancial Ġdistrict Ġ( Ġknown Ġas Ġthe ĠCity Ġof ĠLondon Ġ) Ġ. ĠAtt ending Ġschool Ġbecame Ġdifficult Ġfor ĠRad cliffe Ġafter Ġthe Ġrelease Ġof Ġthe Ġfirst ĠHarry ĠPotter Ġfilm Ġ, Ġwith Ġsome Ġfellow Ġpupils Ġbecoming Ġhostile Ġ, Ġthough Ġhe Ġsays Ġit Ġwas Ġpeople Ġjust Ġtrying Ġto Ġ" Ġhave Ġa Ġcrack Ġat Ġthe Ġkid Ġthat Ġplays ĠHarry ĠPotter Ġ" Ġrather Ġthan Ġjealousy Ġ. Ġ Ġ ĠAs Ġhis Ġacting Ġcareer Ġbegan Ġto Ġconsume Ġhis Ġschedule Ġ, ĠRad cliffe Ġcontinued Ġhis Ġeducation Ġthrough Ġon Ġ@ - @ Ġset Ġtut ors Ġ. ĠHe Ġadmitted Ġhe Ġwas Ġnot Ġvery Ġgood Ġat Ġschool Ġ, Ġconsidering Ġit Ġuseless Ġand Ġfinding Ġthe Ġwork Ġ" Ġreally Ġdifficult Ġ. Ġ" ĠHe Ġachieved ĠA Ġgrades Ġin Ġthe Ġthree ĠAS Ġ@ - @ Ġlevel Ġexams Ġthat Ġhe Ġtook Ġin Ġ2006 Ġ, Ġbut Ġdecided Ġto Ġtake Ġa Ġbreak Ġfrom Ġeducation Ġand Ġdid Ġnot Ġgo Ġto Ġcollege Ġor Ġuniversity Ġ. ĠPart Ġof Ġhis Ġreasoning Ġwas Ġthat Ġhe Ġalready Ġknew Ġhe Ġwanted Ġto Ġact Ġand Ġwrite Ġ, Ġand Ġthat Ġit Ġwould Ġbe Ġdifficult Ġto Ġhave Ġa Ġnormal Ġcollege Ġexperience Ġ. Ġ" ĠThe Ġpap ar azz i Ġ, Ġthey Ġ' d Ġlove Ġit Ġ, Ġ" Ġhe Ġtold ĠDetails Ġmagazine Ġin Ġ2007 Ġ. Ġ" ĠIf Ġthere Ġwere Ġany Ġparties Ġgoing Ġon Ġ, Ġthey Ġ' d Ġbe Ġtipped Ġoff Ġas Ġto Ġwhere Ġthey Ġwere Ġ. Ġ" Ġ Ġ Ġ= Ġ= ĠCareer Ġ= Ġ= Ġ Ġ Ġ= Ġ= Ġ= ĠHarry ĠPotter Ġ= Ġ= Ġ= Ġ Ġ ĠIn Ġ2000 Ġ, Ġproducer ĠDavid ĠHey man Ġasked ĠRad cliffe Ġto Ġaudition Ġfor Ġthe Ġrole Ġof ĠHarry ĠPotter Ġfor Ġthe Ġfilm Ġadaptation Ġof ĠHarry ĠPotter Ġand Ġthe ĠPhilos opher Ġ' s ĠStone Ġ, Ġthe Ġbest Ġ@ - @ Ġselling Ġbook Ġby ĠBritish Ġauthor ĠJ . ĠK . ĠRowling Ġ. ĠRowling Ġhad Ġbeen Ġsearching Ġfor Ġan Ġunknown ĠBritish Ġactor Ġto Ġperson ify Ġthe Ġcharacter Ġ,