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183:, comprising 100 red-sensitive plates extending coverage to -42° declination, was completed and published as identically-sized photographic negative prints. The Whiteoak Extension is often found in libraries stored as an appendix or companion to the photographic print edition of the NGS-POSS. This brings the number of prints to 1,972 for most holders of a photographic edition of the NGS-POSS.
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The survey was originally meant to cover the sky from the north celestial pole to -24° declination. This figure specifies the position of the plate center, hence the actual coverage under the original plan would have been to approximately -27°. It was expected that 879 plate pairs would be required.
357:
Catalog of the POSS I. The catalog was also distributed in a set of 4 DVD-ROMs. The catalog contains accurate sky positions and brightness measurements for all of these objects as well as more esoteric parameters such as ellipticity, position angle, and concentration index.
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The NGS-POSS was published shortly after the Survey was completed as a collection of 1,872 photographic negative prints each measuring 14" x 14". In the early 1970s there was another "printing" of the Survey, this time on 14" x17" photographic negative prints.
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In 1986, work was begun on a digital version of the NGS-POSS. Eight years later, the scanning of the original NGS-POSS plates was completed. The resulting digital images were compressed and published as the
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The
California Institute of Technology bookstore used to sell prints of selected POSS regions. The regions were chosen to support educational exercises and the set was a curriculum teaching tool.
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134:. The first photographic plate was exposed on November 11, 1949. 99% of the plates were taken by June 20, 1956, but the final 1% was not completed until December 10, 1958.
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However the Survey was ultimately extended to -30° plate centers, giving irregular coverage to as far south as -34° declination, and utilizing 936 total plate pairs.
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in 1994. The
Digitized Sky Survey was made available on a set of 102 CD-ROMs, and can also be queried through several web interfaces.
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103a-E plate, and once with a blue sensitive Kodak 103a-O plate. This allowed the color of celestial objects to be recorded.
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in 2001, a catalog identifying over 89 million objects on the NGS-POSS was placed online as part of the
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429:, edited by K. A. Strand (University of Chicago Press, Chicago, IL, 1968), Appendix II, p. 481–487.
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of the survey varied depending on the region of the sky, but is commonly quoted as 22nd
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The survey utilized 14 inches (36 cm) square photographic plates, covering about 6
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per plate). Each region of the sky was photographed twice, once using a red sensitive
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at
Palomar Observatory, and the astronomical survey was funded by a grant from the
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In 1981, a set of NGS-POSS Transparency
Overlay Maps was published by
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were discovered by astronomers studying the NGS-POSS photographs.
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N. Reid & S. Djorgovski (1993) The Second
Palomar Sky Survey
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National
Geographic Society – Palomar Observatory Sky Survey
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National
Geographic Society – Palomar Observatory Sky Survey
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The photographs were taken with the 48 inches (1.2 m)
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Minnesota
Automated Plate Scanner Catalog of the POSS I
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90:of the night sky. It was conducted at
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234:adding citations to reliable sources
1110:Wide-field Infrared Survey Explorer
1056:Palomar Distant Solar System Survey
348:Astronomical Society of the Pacific
1045:The INT Photometric H-Alpha Survey
984:(geography competition; on hiatus)
318:Abell Catalog of Planetary Nebulae
141:of sky per side (approximately 36
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393:Minnesota Automated Plate Scanner
378:Palomar Observatory Sky Survey II
355:Minnesota Automated Plate Scanner
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1094:UKIRT Infrared Deep Sky Survey
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729:National Geographic Adventure
737:National Geographic Traveler
692:National Geographic Partners
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383:Two Micron All-Sky Survey
86:, that took almost 2,000
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1215:Sloan Digital Sky Survey
744:National Geographic Kids
700:A joint venture between
388:Sloan Digital Sky Survey
48:Related media on Commons
943:(geography competition)
702:The Walt Disney Company
610:Gardiner Greene Hubbard
605:Melville Bell Grosvenor
595:Gilbert Hovey Grosvenor
553:, Chairman (since 2016)
104:Samuel Oschin telescope
1100:SCUBA-2 All Sky Survey
346:, was marketed by the
33:Alternative names
1221:VIMOS-VLT Deep Survey
1198:DEEP2 Redshift Survey
580:Alexander Graham Bell
445:Astrophysical Journal
314:astronomical catalogs
192:Ohio State University
1351:Astronomical imaging
1346:Astronomical surveys
1039:Digitized Sky Survey
1025:Astronomical surveys
900:National Geographic
803:National Geographic
600:Gilbert M. Grosvenor
545:Gilbert M. Grosvenor
492:Digitized Sky Survey
337:Digitized Sky Survey
329:astronomical objects
230:improve this section
1356:Palomar Observatory
1187:CfA Redshift Survey
771:National Geographic
722:National Geographic
457:1966ApJ...144..259A
373:Southern Sky Survey
92:Palomar Observatory
88:photographic plates
84:astronomical survey
29:
1361:1958 in California
1192:Dark Energy Survey
982:World Championship
368:Whiteoak extension
181:Whiteoak Extension
158:limiting magnitude
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322:galaxy morphology
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215:This section
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1330:Solar System
1153:PALFA Survey
1050:
1032:Photographic
976:
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869:Nat Geo Wild
788:Nat Geo Wild
774:Nat Geo Kids
742:
735:
727:
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658:Media assets
635:Tim T. Kelly
625:Mark Shelley
585:Barry Bishop
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327:Innumerable
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228:Please help
216:
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164:on average.
155:
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124:Walter Baade
116:Edwin Hubble
101:
98:Observations
79:
75:
71:
67:
65:
1318:Outer space
1306:Spaceflight
847:Scandinavia
837:Netherlands
630:John Verano
615:Chris Johns
168:Publication
1340:Categories
755:Television
399:References
260:newspapers
74:, or just
1282:Astronomy
1071:Infra-red
948:Endeavour
914:Abu Dhabi
807:Abu Dhabi
732:(defunct)
714:Magazines
551:Jean Case
217:does not
162:magnitude
1245:Category
1183:(CALIFA)
1171:(2dFGRS)
1096:(UKIDSS)
1051:NGS-POSS
842:Portugal
797:Channels
757:channels
362:See also
72:NGS-POSS
36:NGS-POSS
1268:Portals
1255:Commons
1227:WiggleZ
1200:(DEEP2)
1177:(6dFGS)
1058:(PDSSS)
1047:(IPHAS)
894:Defunct
832:Germany
453:Bibcode
451:: 259,
344:RealSky
274:scholar
238:removed
223:sources
190:of the
110:to the
78:, also
1223:(VVDS)
1217:(SDSS)
1210:LAMOST
1206:(GAMA)
1138:HIPASS
1134:(GASS)
1127:C-BASS
1112:(WISE)
1090:(IRAS)
1062:SLUGGS
951:(ship)
879:Europe
874:Canada
827:France
822:Canada
765:Brands
568:People
276:
269:
262:
255:
247:
80:POSS I
41:
1294:Stars
1194:(DES)
1120:Radio
1105:VISTA
1078:2MASS
1041:(DSS)
934:Other
904:Farsi
708:(27%)
312:Many
281:JSTOR
267:books
147:Kodak
55:[
1143:NVSS
972:Maps
812:Asia
253:news
221:any
219:cite
156:The
130:and
76:POSS
66:The
941:Bee
461:doi
449:144
232:by
1342::
459:,
447:,
350:.
324:.
126:,
122:,
118:,
1270::
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670:v
525:e
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511:v
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455::
413:8
303:)
297:(
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288:(
278:·
271:·
264:·
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240:.
226:.
139:°
70:(
59:]
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