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| IRS990/ActivityOrMissionDesc | 0 | Our mission is to maintain the integrity and heritage of a historic 19th century observatory while promoting the study and practice of 21st century astronomy and science. |
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| IRS990/Desc | 0 | EDUCATIONAL OUTREACH - The Observatory provides hands-on learning opportunities in the STEM (Science, Technology, Engineering, Mathematics) disciplines aligned with OH, KY & IN K-12 curriculum standards. We offer a variety of standard and customized programs which center around the definition of science, inquiry, the scientific method, critical thinking and problem solving. In 2018, we continued our expanded after-school and summer programs for underserved schools. We provided 283 programs for 84 different schools, serving 11,250 students, 47% of which are underserved. Grade 3-5 programs directly align with state standards, while other elementary and middle school levels show the valuable multi-disciplinary connection of astronomy and space science content with other areas of the student's study. Grade 9-12 programming connects to their physics curriculum. In addition, we hosted almost 700 girl and boy scouts and offered teachers numerous professional development opportunities. |
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| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 59703 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | Our MISSION is to maintain the integrity and heritage of a historic 19th century observatory while promoting the study and practice of 21st century astronomy and science. Our VISION is to be a primary resource in furthering astronomy and science education through programming: 1) for K-12 schools and the public on and off our campus; 2) for universities and classes for teacher professional development; 3) to promote the rich history of the Observatory; and 4) to strengthen our connection to allied STEM (Science, Technology, Engineering, and Math) organizations. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 1759182 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 2715427 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -1706 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -1706 |
| IRS990/NetIncmFromFundraisingEvtGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/ExclusionAmt | 0 | 0 |
| IRS990/NetIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 6541 |
| IRS990/NetIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 6541 |
| IRS990/NetIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/ExclusionAmt | 0 | 0 |
| IRS990/NetRentalIncomeOrLossGrp/RelatedOrExemptFuncIncomeAmt | 0 | 27325 |
| IRS990/NetRentalIncomeOrLossGrp/TotalRevenueColumnAmt | 0 | 27325 |
| IRS990/NetRentalIncomeOrLossGrp/UnrelatedBusinessRevenueAmt | 0 | 0 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -70584 |
| IRS990/NoncashContributionsAmt | 0 | 1312 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 3645 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 7288 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 61960 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 72893 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 899 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 1799 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 6295 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 8993 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 300962 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 106607 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 4525 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 5521 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 18552 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 28598 |
| IRS990/OtherExpensesGrp/Desc | 0 | 24a-Program Supplies |
| IRS990/OtherExpensesGrp/Desc | 1 | 24b-Other Program Costs |
| IRS990/OtherExpensesGrp/Desc | 2 | 24e-Other Admin Costs |
| IRS990/OtherExpensesGrp/Desc | 3 | 24d-Bank & Merchant Fees |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 0 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 2 | 4309 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 3 | 1536 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 0 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 4009 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 0 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 18731 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 12937 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 0 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 3583 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 18731 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 12937 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 8318 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 5119 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 462982 |
| IRS990/OtherRevenueTotalAmt | 0 | 0 |