{"id":"https://openalex.org/W1630019787","doi":null,"title":"Seeing the Deep Sky: Telescopic Astronomy Projects Beyond the Solar System","display_name":"Seeing the Deep Sky: Telescopic Astronomy Projects Beyond the Solar System","publication_year":1992,"publication_date":"1992-03-01","ids":{"openalex":"https://openalex.org/W1630019787","mag":"1630019787"},"language":"en","primary_location":{"id":"mag:1630019787","doi":null,"is_oa":false,"landing_page_url":"https://ci.nii.ac.jp/ncid/BA18163428","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"volume":null,"type":"book","indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5076204013","display_name":"Fred Schaaf","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Fred Schaaf","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5076204013"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.31125828,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.8877000212669373,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10039","display_name":"Stellar, planetary, and galactic studies","score":0.8877000212669373,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12836","display_name":"History and Developments in Astronomy","score":0.05310000106692314,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10026","display_name":"Galaxies: Formation, Evolution, Phenomena","score":0.026599999517202377,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/deep-sky-observing","display_name":"deep-sky observing","score":0.7950000166893005},{"id":"https://openalex.org/keywords/amateur-astronomy","display_name":"amateur astronomy","score":0.5680000185966492},{"id":"https://openalex.org/keywords/telescopic-astronomy","display_name":"telescopic astronomy","score":0.7279999852180481},{"id":"https://openalex.org/keywords/hertzsprung-russell-diagram","display_name":"Hertzsprung-Russell diagram","score":0.9869999885559082},{"id":"https://openalex.org/keywords/luminosity-class","display_name":"luminosity class","score":0.7080000042915344},{"id":"https://openalex.org/keywords/double-stars","display_name":"double stars","score":0.7350000143051147},{"id":"https://openalex.org/keywords/stellar-colors","display_name":"stellar colors","score":0.5820000171661377},{"id":"https://openalex.org/keywords/open-clusters","display_name":"open clusters","score":0.9100000262260437},{"id":"https://openalex.org/keywords/globular-clusters","display_name":"globular clusters","score":0.9860000014305115},{"id":"https://openalex.org/keywords/diffuse-nebulae","display_name":"diffuse nebulae","score":0.9610000252723694},{"id":"https://openalex.org/keywords/planetary-nebulae","display_name":"planetary nebulae","score":0.9950000047683716},{"id":"https://openalex.org/keywords/supernova-remnants","display_name":"supernova remnants","score":0.9760000109672546},{"id":"https://openalex.org/keywords/dark-nebulae","display_name":"dark nebulae","score":0.9829999804496765},{"id":"https://openalex.org/keywords/galaxies","display_name":"galaxies","score":0.7599999904632568},{"id":"https://openalex.org/keywords/galaxy-types","display_name":"galaxy types","score":0.6179999709129333},{"id":"https://openalex.org/keywords/galaxy-clusters","display_name":"galaxy clusters","score":0.9399999976158142},{"id":"https://openalex.org/keywords/quasars","display_name":"quasars","score":0.8980000019073486},{"id":"https://openalex.org/keywords/proper-motions","display_name":"proper motions","score":0.7360000014305115}],"concepts":[{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.8181923627853394},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.6871361136436462},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.6660919785499573},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.6572005152702332},{"id":"https://openalex.org/C98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","level":2,"score":0.5511634945869446},{"id":"https://openalex.org/C63585750","wikidata":"https://www.wikidata.org/wiki/Q2488","display_name":"Spiral galaxy","level":3,"score":0.4497513473033905},{"id":"https://openalex.org/C17959413","wikidata":"https://www.wikidata.org/wiki/Q899219","display_name":"Luminosity function","level":4,"score":0.44508689641952515},{"id":"https://openalex.org/C135041427","wikidata":"https://www.wikidata.org/wiki/Q83373","display_name":"Quasar","level":3,"score":0.4396364688873291},{"id":"https://openalex.org/C113461152","wikidata":"https://www.wikidata.org/wiki/Q11276","display_name":"Globular cluster","level":3,"score":0.42459070682525635},{"id":"https://openalex.org/C168020605","wikidata":"https://www.wikidata.org/wiki/Q5848","display_name":"Blue straggler","level":4,"score":0.4232673645019531},{"id":"https://openalex.org/C95373548","wikidata":"https://www.wikidata.org/wiki/Q13632","display_name":"Planetary nebula","level":3,"score":0.414716899394989},{"id":"https://openalex.org/C12287442","wikidata":"https://www.wikidata.org/wiki/Q105902","display_name":"Luminosity","level":3,"score":0.3020707368850708}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:1630019787","doi":null,"is_oa":false,"landing_page_url":"https://ci.nii.ac.jp/ncid/BA18163428","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W617290509","https://openalex.org/W4206767436","https://openalex.org/W3083533931","https://openalex.org/W3021474145","https://openalex.org/W2494277571","https://openalex.org/W129510259","https://openalex.org/W1665488583","https://openalex.org/W3010910787","https://openalex.org/W4401278774","https://openalex.org/W4394908213"],"abstract_inverted_index":{"Partial":[0],"table":[1],"of":[2,13,18,35,43,80],"contents:":[3],"STARS.":[4],"The":[5,10,15,20,27,41],"Brightest":[6],"Stars--1":[7],"(Autumn":[8],"Stars).":[9],"Spectral":[11,16],"Types":[12],"Stars.":[14,29,37,45],"Classes":[17],"Stars--1.":[19],"Hertzsprung-Russell":[21],"Diagram":[22],"and":[23,32,61,69,75],"the":[24,36],"Luminosity":[25],"Classes.":[26],"Nearest":[28],"Proper":[30],"Motion":[31],"Other":[33],"Motions":[34],"Double":[38,44],"Stars--General":[39],"Observations.":[40],"Colors":[42],"STAR":[46],"CLUSTERS":[47],"AND":[48,65],"NEBULAE.":[49],"Open":[50],"Star":[51],"Clusters--1.":[52],"Globular":[53],"Clusters.":[54],"Diffuse":[55],"Nebulae--1.":[56],"Planetary":[57],"Nebulae.":[58,63],"Supernova":[59],"Remnants":[60],"Dark":[62],"GALAXIES":[64],"QUASARS.":[66],"Galaxies--General":[67],"Observations":[68],"Types.":[70],"Selected":[71],"Galaxies--1.":[72],"Galaxy":[73],"Clusters":[74],"Quasars.":[76],"Appendices.":[77],"Glossary.":[78],"Sources":[79],"Information.":[81],"Indexes.":[82]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-25T09:29:13.331239","created_date":"2016-06-24T00:00:00"}