Palomar Observatory Sky Survey

E514339

astronomical catalog project astronomical survey photographic sky survey

The Palomar Observatory Sky Survey is a landmark mid-20th-century photographic mapping of the night sky that produced some of the most widely used astronomical reference images for research and discovery.

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Observed surface forms (1)

Surface form	Occurrences
Second Palomar Observatory Sky Survey	1

Statements (47)

Predicate	Object
instanceOf	astronomical catalog project ⓘ astronomical survey ⓘ photographic sky survey ⓘ
alsoKnownAs	POSS NERFINISHED ⓘ POSS I NERFINISHED ⓘ
bandpass	blue-sensitive photographic band ⓘ red-sensitive photographic band ⓘ
conductedAt	Palomar Observatory NERFINISHED ⓘ
coverage	most of the sky north of declination −27 degrees ⓘ northern sky ⓘ
dataFormat	digitized images ⓘ photographic atlas ⓘ printed sky atlas ⓘ
digitizedAs	Digitized Sky Survey NERFINISHED ⓘ
endYear	1958 ⓘ
epoch	B1950 ⓘ
followedBy	POSS II NERFINISHED ⓘ Second Palomar Observatory Sky Survey NERFINISHED ⓘ
influenced	Digitized Sky Survey NERFINISHED ⓘ modern digital sky surveys ⓘ
limitingMagnitude	about 20 in red band ⓘ about 21 in blue band ⓘ
locatedIn	California, United States ⓘ surface form: California United States of America ⓘ surface form: United States
medium	photographic plates ⓘ
notableFor	being one of the first complete photographic surveys of the northern sky ⓘ wide use as a standard reference in 20th-century astronomy ⓘ
numberOfPlates	approximately 1878 plates ⓘ
observatoryOwner	California Institute of Technology NERFINISHED ⓘ
operatedBy	California Institute of Technology NERFINISHED ⓘ
plateScale	approximately 67 arcseconds per millimeter ⓘ
plateSize	14-inch by 14-inch glass plates ⓘ
purpose	mapping the night sky ⓘ providing reference images for astronomical research ⓘ supporting discovery of new astronomical objects ⓘ
sponsor	California Institute of Technology NERFINISHED ⓘ National Geographic Society NERFINISHED ⓘ
startYear	1949 ⓘ
telescopeUsed	48-inch Schmidt telescope NERFINISHED ⓘ Samuel Oschin telescope NERFINISHED ⓘ
usedFor	astrometric reference ⓘ identification of asteroids ⓘ identification of galaxies ⓘ identification of quasars ⓘ identification of variable stars ⓘ photometric reference ⓘ
wavelength	optical ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Palomar Observatory → knownFor → Palomar Observatory Sky Survey ⓘ

Palomar Observatory → conductedSurvey → Palomar Observatory Sky Survey ⓘ

this entity surface form: Second Palomar Observatory Sky Survey