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        <Title>Director</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Irma Milstein</NamePerson>
        <Title>Director</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Edwin H Morgens</NamePerson>
        <Title>Director</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Charles H Mott</NamePerson>
        <Title>Director</Title>
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        <NamePerson>Richard D Parsons</NamePerson>
        <Title>Director</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Valerie S Peltier</NamePerson>
        <Title>Director</Title>
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      </Form990PartVIISectionA>
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        <NamePerson>Charles E Phillips Jr</NamePerson>
        <Title>Director</Title>
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        <NamePerson>Virginia Hearst Randt</NamePerson>
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        <NamePerson>Ralph L Schlosstein</NamePerson>
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        <NamePerson>Kenneth L Wallach</NamePerson>
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        <NamePerson>Judy H Weston</NamePerson>
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        <NamePerson>Hon Michael R Bloomberg</NamePerson>
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    </IRS990>
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    </IRS990ScheduleB>
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      <Form990ScheduleDPartXIV>
        <Identifier>Part X, FIN 48</Identifier>
        <Explanation>The Planetarium Authority adopted the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 740-10 during fiscal year end 2009. ASC 740-10 clarifies the accounting for uncertainty in tax positions taken or expected to be taken in a tax return, including issues relating to financial statement recognition and measurement. This section provides that the tax effects from an uncertain tax position can be recognized in the financials statements only if the position is "more-likely-than-not" to be sustained if the position were to be challenged by a taxing authority. The assessment of the tax position is based solely on the technical merits of the position, without regard to the likelihood that the tax position may be challenged. The Planetarium Authority is exempt from income tax under IRC Section 501(c)(3), though they are subject to tax on income unrelated to its exempt purposes, unless that income is otherwise excluded by the Code. The tax years ending June 30, 2008, 2009 and 2010 are still open to audit for both federal and state purposes. The adoption of ASC 740-10 did not have any impact on the Planetarium Authority's 2009 financial statements.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="IRS990ScheduleJ">
      <SeverancePayment>false</SeverancePayment>
      <SupplementalNonqualRetirePlan>true</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>false</EquityBasedCompArrangement>
      <CompBasedOnRevenueOfFilingOrg>false</CompBasedOnRevenueOfFilingOrg>
      <CompBasedOnRevenueRelatedOrgs>false</CompBasedOnRevenueRelatedOrgs>
      <CompBasedNetEarningsFilingOrg>false</CompBasedNetEarningsFilingOrg>
      <CompBasedNetEarningsRelateOrgs>false</CompBasedNetEarningsRelateOrgs>
      <AnyNonFixedPayments>false</AnyNonFixedPayments>
      <InitialContractException>false</InitialContractException>
      <Form990ScheduleJPartII>
        <NamePerson>Ellen V Futter</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>687496</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>160850</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>123903</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>972249</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>DANIEL SLIPPEN</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>157553</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>13756</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>11523</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>182832</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartIII>
        <Identifier>PART II COLUMN C</Identifier>
        <Explanation>This is the sum of contributions to retirement plans plus current year accruals for deferred compensation which is contingent upon meeting specified requirements, and would be payable in the future, (for E. Futter, $136,800). Deferred compensation for Daniel Slippen is comprised of retirement plans.</Explanation>
      </Form990ScheduleJPartIII>
      <Form990ScheduleJPartIII>
        <Identifier>Part II Column D</Identifier>
        <Explanation>All amounts are for medical and other insurance benefits, and for E. Futter it includes the value of Museum-owned housing where the President is required to reside for the convenience of the Museum (Part I, 1a).</Explanation>
      </Form990ScheduleJPartIII>
    </IRS990ScheduleJ>
    <IRS990ScheduleM documentId="IRS990ScheduleM">
      <WorksOfArt />
      <ArtHistoricalTreasures />
      <ArtFractionalInterest />
      <BooksAndPublications />
      <ClothingAndHouseholdGoods />
      <CarsAndOtherVehicles />
      <BoatsAndPlanes />
      <IntellectualProperty />
      <SecuritiesPubliclyTraded />
      <SecuritiesCloselyHeldStock />
      <SecuritiesPrtnrshpTrustIntrsts />
      <SecuritiesMiscellaneous />
      <QualifiedContribHistStruct />
      <QualifiedContribOther />
      <RealEstateResidential />
      <RealEstateCommercial />
      <RealEstateOther />
      <Collectibles />
      <FoodInventory />
      <DrugsAndMedicalSupplies />
      <Taxidermy />
      <HistoricalArtifacts />
      <ScientificSpecimens />
      <ArchaeologicalArtifacts />
      <OtherNonCashContributionsTable>
        <NonCashCheckbox>X</NonCashCheckbox>
        <Description>See Note</Description>
        <NumberOfContributions>1</NumberOfContributions>
        <NoncashContribsRptdF990>86883</NoncashContribsRptdF990>
        <MethodOfDeterminingRevenues>Invoice Amount</MethodOfDeterminingRevenues>
      </OtherNonCashContributionsTable>
      <AnyPropertyThatMustBeHeld>false</AnyPropertyThatMustBeHeld>
      <ReviewProcessUnusualNCGifts>true</ReviewProcessUnusualNCGifts>
      <ThirdPartiesUsed>false</ThirdPartiesUsed>
      <Form990ScheduleMPartII>
        <Identifier>Noncash contributions</Identifier>
        <Explanation>Noncash contributions consist of forgiveness of interest, audit fees, and provision for insurance coverage by the american museum of natural history.</Explanation>
      </Form990ScheduleMPartII>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <GeneralExplanation>
        <Identifier>Part VI, Section B, Question 11</Identifier>
        <Explanation>The return is reviewed by the relevant officers of the organization and is reviewed and signed by the organization's independent audit firm, Grant Thornton. The return is made available to all members of the Board of Directors prior to filing with the IRS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Part VI, Section A, Question 2</Identifier>
        <Explanation>Trustee Roger C Altman and Trustee Ralph L Schlosstein - Business relationship Trustee Lewis w Bernard and Trustee steven a denning - business relationship</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Part VI, Section A, Question 3</Identifier>
        <Explanation>Management functions are provided by the American Museum of Natural History.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Part VI, Section A, Line 4</Identifier>
        <Explanation>The Planetarium Authority revised its by-laws on January 20, 2010 to provide for a board of directors that is independent to the board of trustees of the American Museum of Natural History</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>PART VI, Section B, QUESTION 12C</Identifier>
        <Explanation>The Planetarium Authority annually distributes to its directors the Planetarium Authority's Code of Ethical Practices as well as the Planeatrium Authority's conflict of interest policy, which are located in its Policy document. On an annual basis, the Planetarium Authority requires its Directors and officers and key employees to disclose any interests that could give rise to a conflict of interest. These individuals are advised to bring any and all duality of interests to the attention of the chairman of the board, who in turn brings them to the attention of the Board of directors, if necessary. The Audit Committee reviews all approved dual interest arrangements, if any.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Part VI, Section C, Question 19</Identifier>
        <Explanation>The Planetarium Authority makes its Governance documents, Conflict of Interest policy, as well as the Planetarium Authority's audited financial statements available to the public on the Planeatrium Authority's website, located at www.planetariumauthority.net.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>Sch R, Part II</Identifier>
        <Explanation>The American Museum of Natural History is one of the world's largest natural history museums and cultural institutions with exhibits from anthropology, biology, and the physical sciences and collections of over 32 million specimens and artifacts. It operates a planetarium that is one of the worlds' most technologically advanced with programs supported by the scientific research of geologists and astrophysicists. It has a fully accredited graduate school that confers the Ph.D. degree in comparative biology, the first and only museum in the United States authorized to do so. Its research library of natural history supports a full time scientific staff of over 230. Its scientific research facilities and programs include an institute for molecular and microbial biology and genomics and a conservation center that uses applied science to address the global loss of biodiversity. It is a creator and distributor of award-winning museum exhibitions, science bulletins, and planetarium shows that are lent to North American, Asian, and European venues. Educational offerings include professional development courses for K-12 teachers, both online and onsite, and a wide range of educational resources, programs, and curricular materials. It is also a convener of major international conferences on scientific, environmental, cultural, and educational topics.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="IRS990ScheduleR">
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>American Museum of Natural History</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>Central Park West at 79th Street</AddressLine1>
          <City>New York</City>
          <State>NY</State>
          <ZIPCode>10024</ZIPCode>
        </AddressUS>
        <EIN>136162659</EIN>
        <PrimaryActivities>see sch o</PrimaryActivities>
        <LegalDomicileState>NY</LegalDomicileState>
        <ExemptCodeSection>501(C)3</ExemptCodeSection>
        <PublicCharityStatus>9</PublicCharityStatus>
        <DirectControllingEntityName>
          <BusinessNameLine1>NA</BusinessNameLine1>
        </DirectControllingEntityName>
      </Form990ScheduleRPartII>
      <ReceiptOfIntAnnRentsRoyalties>false</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>false</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>true</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>false</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>false</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>false</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>false</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>false</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>true</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>false</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>false</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>false</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>false</SharingOfFacilities>
      <SharingOfPaidEmployees>true</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>false</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>false</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>false</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>false</OtherTransferFromOtherOrg>
    </IRS990ScheduleR>
  </ReturnData>
</Return>