Ontoportal-Astro
Browse
Mappings
Recommender
Annotator
Landscape
Loading
Search ontology content
Browse all ontologies
LABEL
NAME
ACRONYM
TYPE
Login
EN
English
French
Italian
coming
German
coming
Support
Send Feedback
Documentation
Cite Us
Release Notes
Groups and Categories
Agents
×
Get a permanent link to this class
×
Ontologies
CONTENT_LEVEL
IVOA Content levels for VO resources
(CONTENT_LEVEL)
OWL
View license
Last submission date October 15, 2025
Watch
Loading
Summary
Classes
Properties
Instances
Notes
Mappings
Widgets
SPARQL
<div><div class='d-flex align-items-center'> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <!-- Uploaded to: SVG Repo, www.svgrepo.com, Transformed by: SVG Repo Mixer Tools --><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="17px" width="17px" version="1.1" id="_x32_" viewBox="0 0 512 512" xml:space="preserve" fill="#000000"> <g id="SVGRepo_bgCarrier" stroke-width="0"></g> <g id="SVGRepo_tracerCarrier" stroke-linecap="round" stroke-linejoin="round"></g> <g id="SVGRepo_iconCarrier"> <style type="text/css"> .st0{fill:#000000;} </style> <g> <path class="st0" d="M496.123,167.12c-4.457-12.064-9.825-23.73-15.992-34.864c-11.674-21.088-26.21-40.373-43.13-57.261 c-0.413-0.413-0.754-0.762-1.167-1.175h-0.028c-0.48-0.476-0.937-0.936-1.445-1.404l-0.035-0.024 c-1.449-1.445-2.948-2.881-4.457-4.223C384.25,25.859,323.069,0.002,255.998,0.002c-38.948,0-75.912,8.722-108.972,24.302 c-2.27,1.071-4.532,2.174-6.754,3.31c-24.25,12.309-46.277,28.356-65.281,47.381c-27.793,27.761-49.214,61.951-61.924,100.11 c-0.639,1.921-1.27,3.873-1.861,5.817l-0.076,0.215c-0.405,1.317-0.793,2.682-1.174,4.032c-0.944,3.23-1.806,6.46-2.592,9.754 c-0.31,1.135-0.563,2.278-0.818,3.437C2.262,216.882,0,236.183,0,256c0,70.627,28.682,134.73,74.991,181.007 c26.06,26.048,57.75,46.531,93.075,59.483c1.099,0.405,2.222,0.81,3.36,1.182c6.75,2.381,13.655,4.468,20.659,6.27 c1.222,0.31,2.468,0.619,3.718,0.889c19.314,4.69,39.488,7.166,60.194,7.166c70.634,0,134.725-28.674,181.003-74.991 c8.492-8.468,16.36-17.524,23.559-27.127C492.834,367.055,512,313.706,512,256C512,224.771,506.385,194.818,496.123,167.12z M94.789,417.221C53.512,375.897,28.015,319,28.015,256c0-11.643,0.87-23.056,2.552-34.206 c7.766,5.429,21.932,13.024,22.111,13.064c0.531,0.167,1.142,0.254,1.881,0.254c1.147,0,2.524-0.206,3.948-0.436 c1.504-0.222,3.036-0.444,4.254-0.444c0.381,0,0.742,0.016,1.028,0.071c0.527,0.238,1.393,2.238,1.849,3.31 c0.945,2.159,1.913,4.396,3.905,5.373c1.849,0.936,5.849,1.421,11.71,2.047c1.941,0.215,3.925,0.453,4.944,0.619 c0.381,0.698,0.845,2.405,1.151,3.596c0.893,3.349,1.778,6.77,4.329,8.294c2.116,1.294,9.016,7.857,12.866,11.722 c0.508,0.492,1.146,0.746,1.809,0.746c0.425,0,0.889-0.103,1.27-0.357c0.306-0.175,7.027-4.111,9.373-5.579 c0.488,0.158,1.353,0.706,2.139,1.381c0.123,3.69,0.591,15.897,0.614,18.365c-0.432,1.532-5.555,6.856-11.206,11.634 c-0.559,0.468-0.9,1.127-0.92,1.833c-0.024,0.698-0.636,16.817,0,23.294c0.666,6.563,11.436,19.389,14.333,22.722 c1.226,3.326,4.567,12.175,5.842,14.072c1.273,1.912,14.19,11.603,22.495,17.738v38.19c0,4.278,1.671,7.071,3.004,9.341 c0.818,1.349,1.452,2.413,1.452,3.381v26.746c0,3.477,1.012,6.326,2.416,8.738C133.911,450.3,112.868,435.269,94.789,417.221z M453.413,161.755c-4.464-3.174-11.465-4.452-11.465-4.452l-5.099-0.651c-2.544-5.088-1.27-16.547-10.182-14.008 c-8.921,2.555-38.214,7.642-44.583,8.92c-6.361,1.27-14.008,11.452-19.099,19.096c-5.099,7.642-19.106,31.848-21.654,35.666 c-2.544,3.817-3.822,28.024-3.822,34.381c0,6.381,28.028,33.127,36.936,34.396c8.917,1.27,33.11-5.095,39.484-6.365 c6.369-1.286,10.186,7.635,15.282,7.635c5.095,0,11.464,2.547,6.368,10.206c-5.095,7.619-5.095,11.444,0,16.54 c5.096,5.103,15.282,24.206,8.913,39.492c-6.369,15.277-1.265,22.912,2.552,29.285c0.73,1.222,1.5,2.92,2.318,4.92 c-9.178,14.635-19.976,28.19-32.151,40.404c-41.321,41.262-98.218,66.762-161.213,66.762c-21.044,0-41.389-2.866-60.726-8.167 c0.08-0.318,0.155-0.674,0.21-1.04c0.321-2.388-0.666-4.166-1.686-5.42c1.429-0.683,2.572-1.778,3.385-3.239 c1.23-2.238,1.432-4.984,1.23-7.151l1.238,0.024c3.107,0,6.679-0.286,9.428-2.246c4.504-3.206,4.588-9.984,3.742-14.69 c0.329,0.143,0.666,0.301,0.972,0.396c0.35,0.143,0.735,0.175,1.123,0.175c4.076,0,8.584-7.326,9.798-12.175 c0.464-1.778,2.167-5.714,3.83-9.548c3.893-9.04,6.234-14.722,5.782-17.547c0.067-1.778,7.052-7.342,13.261-8.588 c7.366-1.468,9.988-4.174,12.766-13.23c2.651-8.595,3.953-22.912,3.266-29.032c-0.202-2.007,4.142-8.119,7.055-12.166 c4.735-6.682,7.619-10.952,7.619-14.286c0-7.698-6.475-12.889-11.341-16.134c-4.837-3.23-13.321-3.976-18.952-4.445 c-1.575-0.135-2.953-0.254-3.592-0.388c-0.583-0.12-1.603-1.23-2.417-2.088c-1.754-1.889-4.158-4.46-7.98-4.944 c-0.432-0.056-0.885-0.072-1.317-0.072c-2.428,0-4.584,0.762-6.698,1.5c-1.885,0.683-3.671,1.334-5.448,1.334 c-0.544,0-1.048-0.063-1.556-0.191c-0.944-0.198-1.306-0.46-1.378-0.46c0.02-0.428,0.838-1.865,2.845-3.199 c1.941-1.293,3.778-4.15,1.663-10.627c-1.503-4.666-4.285-9.079-5.396-10.73c-4-6.007-11.29-6.007-13.683-6.007 c-2.191,0-4.333,0.214-6.528,0.404l-0.476,0.016c-2.219,0-3.516-1.952-6.04-6.079c-1.429-2.342-3.035-4.961-5.266-7.659 c-4.849-5.81-11.618-6.58-17.631-6.58c-0.794,0-1.556,0-2.298,0.032c-0.634,0-1.25,0.016-1.829,0.016 c-0.814,0-1.556-0.016-2.198-0.103c-2.21-0.278-5.5-1.96-8.401-3.452c-3.182-1.635-6.19-3.191-8.738-3.548l-0.635-0.047 c-3.643,0-7.766,4.23-13.651,10.643c-1.46,1.587-3.341,3.642-4.337,4.507c-0.198-0.23-0.457-0.523-0.655-0.778 c-1.071-1.365-2.527-3.158-5.103-4.031c-0.556-0.183-1.119-0.286-1.678-0.286c-2.012,0-3.512,1.159-4.818,2.158 c-1.163,0.873-2.159,1.612-3.362,1.612c-0.706,0-1.524-0.246-2.468-0.754c-3.512-1.92-2.346-9.278-1.425-15.183 c0.436-2.714,0.845-5.27,0.845-7.421c0-4.888-2.889-5.42-4.103-5.42c-1.174,0-2.321,0.406-3.646,0.929 c-1.5,0.54-3.235,1.182-5.044,1.182c-0.814,0-1.576-0.135-2.314-0.388c-1.452-0.476-2.095-0.984-2.194-1.286 c-0.357-0.977,1.528-3.85,2.9-5.968c0.636-0.969,1.302-1.985,1.937-3.024c2.655-4.42,4.032-7.682,2.623-10.151 c-0.87-1.492-2.465-2.27-4.762-2.27c-0.885,0-1.88,0.103-3.055,0.333c-0.866,0.158-1.683,0.238-2.497,0.238 c-1.094,0-1.936-0.151-2.674-0.278c-0.69-0.11-1.222-0.214-1.686-0.214c-3.512,0-3.944,3.491-4.127,5c-0.655,5.301-3.838,8-9.417,8 c-0.413,0-0.809-0.024-1.246-0.048c-5.937-0.381-8.464-4.595-8.464-14.016c0-4.095,0.643-5.174,2.548-8.388 c0.944-1.548,2.118-3.508,3.543-6.381c3.155-6.294,5.655-7.468,8.837-8.936c0.94-0.445,1.912-0.896,2.909-1.469 c0.762-0.46,1.397-0.658,1.853-0.658c0.337,0,0.687,0.135,1.302,0.341c0.845,0.317,1.984,0.722,3.492,0.722 c0.432,0,0.888-0.015,1.396-0.087c4.687-0.801,5.679-3.548,6.548-5.968c0.108-0.254,0.202-0.524,0.338-0.865 c0.25,0.087,0.504,0.15,0.762,0.198c2.064,0.595,5.504,1.556,11.055,1.556c1.833,0,3.159,0.023,4.127,0.08 c-0.69,3.492-0.666,10.222,6.234,18.087c2.27,2.571,4.262,3.769,6.294,3.769c6.528,0,7.08-11,7.08-23.238 c0-7.396,2.805-9.42,11.107-15.349l0.54-0.397c4.508-3.198,7.187-7,9.778-10.674c2.806-3.96,5.448-7.707,10.42-10.802 c4.666-2.944,11.948-6.175,18.98-9.334c8.123-3.611,15.786-7.031,19.385-9.904c4.127-3.317,3.309-8.508,2.643-12.722 c-0.866-5.414-0.611-6.532,1.556-7.176c3.568-1.008,7.389-1.602,11.44-2.238c5.802-0.913,11.818-1.857,17.988-4.182 c6.405-2.388,7.889-5.809,8.016-8.278c0.234-4.174-3.366-7.516-6.516-9.095c-1.378-0.691-1.536-4.072-1.635-7.072 c-0.151-3.833-0.301-7.777-2.778-10.222c-1.397-1.428-3.186-2.143-5.25-2.143c-2.698,0-5.6,1.19-8.961,2.611 c-2.222,0.912-4.714,1.928-7.364,2.69c-0.286,0.08-0.536,0.135-0.738,0.135c-0.996,0-1.707-2.071-2.592-4.976 c-1.361-4.294-3.369-10.722-10.424-10.722c-0.79,0-1.659,0.072-2.572,0.254c-8.992,1.801-11.107,11.444-12.631,18.491 c-0.54,2.532-1.377,6.373-2.119,6.881c-5.298,0-7.004,3.381-8.662,6.666c-1.048,2.096-2.238,4.461-4.56,6.778 c-1.425,1.429-2.413,1.818-2.698,1.85c-0.432-0.405-1.092-3.508,1.682-9.048c1.174-2.325,2.496-5.714,0.866-8.484 c-1.913-3.238-6.44-3.452-11.667-3.642c-2.087-0.103-4.254-0.183-6.42-0.46c-4.131-0.516-5.218-1.564-5.27-1.786 c0-0.103,0.052-0.818,1.175-2.198c34.055-20.246,73.836-31.888,116.38-31.888c51.586,0,99.082,17.103,137.292,45.968 c-0.595,2.389-2.527,5.865-4.202,8.794c-2.543,4.468-1.269,7.016-1.269,7.016s12.103-1.913,14.643-3.182 c0.896-0.444,1.706-1.762,2.302-3.357c1.297,1.095,2.567,2.198,3.809,3.357c-3.028,2.745-6.281,5.626-7.381,6.372 c-1.905,1.262-8.274,3.182-10.825,4.444c-2.548,1.278,7.638,5.739,7.638,7.643c0,1.913,0,10.826-3.821,11.452 c-3.817,0.643-21.643,0.643-21.643,0.643s-5.738,20.374-4.464,22.286c1.274,1.92,9.552,6.381,14.65,5.746 c5.092-0.658,16.559-6.365,16.559-6.365l5.088-11.46l10.186-10.85c0,0,7.643,3.182,10.194,0.643 c2.544-2.54,7.642-5.079,7.642-5.079s5.096,9.539,8.278,10.818l0.615,0.278l0.016,0.039c3.679,5.064,7.115,10.278,10.318,15.659 l0.032,0.04v0.024l0.047,0.112c0.175,0.373,0.358,0.706,0.588,0.921c5.218,8.841,9.885,18.031,13.904,27.547 C462.088,167.255,457.274,164.501,453.413,161.755z"></path> </g> </g> </svg> <div class='ml-1'> All languages </div> </div> </div>
<div><div class='d-flex align-items-center'> <span class="flag-icon flag-icon-gb"></span> <div class='ml-1'> English </div> </div> </div>
Details
Instances (
)
Visualization
Notes (
0
)
Mappings (
Loading
Loading
)
ID
http://www.ivoa.net/rdf/voresource/content_level#Amateur
http://www.ivoa.net/rdf/voresource/content_level#Amateur
https://ontoportal-astro.eu/ontologies/CONTENT_LEVEL/Amateur
Loading
Preferred name
Amateur
Definitions
Resource provides information of interest to amateur astronomers.
Raw data
rdfs:comment
Resource provides information of interest to amateur astronomers.
rdf:type
http://www.w3.org/2002/07/owl#Class
Loading
rdfs:subClassOf
http://www.w3.org/2002/07/owl#Thing
Loading
rdfs:label
Amateur
JSON
-
LD
RD
F
/XML
N
-
TRIPLE
TURTLE
Add comment
Add proposal
Subject
Author
Type
Created
No notes to display
