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Harvard College Observatory

 Organization

Found in 188 Collections and/or Records:

Final Adopted Magnitudes: Comp Stars for Variables, 1901 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Early Variable Star Work
Item — Box 78Identifier: KG11365-6, phaedra1861
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Final Adopted Magnitudes: Comp Stars for Variables, 1900 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Early Variable Star Work
Item — Box 78Identifier: KG11365-6, phaedra1862
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Final Values of deltaT, m, reg for reduction of Zone Observations, 1870/1874 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Zone Observations and Reductions
Item — Box 71Identifier: KG11365-6, phaedra1695
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Final Values of deltaT, m, reg for reduction of Zone Observations, 1874/1878 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Zone Observations and Reductions
Item — Box 71Identifier: KG11365-6, phaedra1696
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Final Values of n and c for reduction of zone observations, 1872/1876 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Zone Observations and Reductions
Item — Box 71Identifier: KG11365-6, phaedra1697
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Final Values of n and c for reduction of zone observations, 1876/1878 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Zone Observations and Reductions
Item — Box 71Identifier: KG11365-6, phaedra1698
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Flexure Constants, Equator Point Corrections, 1874-01-15/1875-12-06 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions
Item — Box 11Identifier: KG11365-6, phaedra0421
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Form for Equatorial Observations, 1879-01-29/1879-09-30 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Early Variable Star Work
Item — Box 13Identifier: KG11365-6, phaedra0477
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars, Ephemerides, 1879 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions
Item — Box 73Identifier: KG11365-6, phaedra1746
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars, Ephemerides, 1879 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions
Item — Box 73Identifier: KG11365-6, phaedra1747
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1883 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1616
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1883 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1617
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1883/1884 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1618
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1884 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1619
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1885 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1620
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1885 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1621
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Stars Observations and Reductions, 1885/1886 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: Fundamental Star Observations and Reductions
Item — Box 68Identifier: KG11365-6, phaedra1622
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Fundamental Zone Star Circle Readings, 1885 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions
Item — Box 77Identifier: KG11365-6, phaedra1850
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

General Catalog List, 1872 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions
Item — Box 73Identifier: KG11365-6, phaedra1754
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

General Catalog Observations and Reductions, 1871/1872 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / Sub-Series: Meridian Circle Work, Observations and Reductions / File: General Catalog Observations and Reductions
Item — Box 11Identifier: KG11365-6, phaedra0418
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Instrumental Constants 1870-71, depending on new Pulkowa Places, 1870-11-10/1871-12-17 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / File: Time Service, Clock Errors, and Other Instrument Readings
Item — Box 11Identifier: KG11365-6, phaedra0422
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Instrumental Constants depending on Pulkova Coordinates, 1871/1872 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / File: Time Service, Clock Errors, and Other Instrument Readings / File: Instrumental Constants depending on Pulkova Coordinates
Item — Box 71Identifier: KG11365-6, phaedra1688
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Instrumental Constants depending on Pulkova Coordinates, 1872/1873 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / File: Time Service, Clock Errors, and Other Instrument Readings / File: Instrumental Constants depending on Pulkova Coordinates
Item — Box 71Identifier: KG11365-6, phaedra1689
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Instrumental Constants depending on Pulkova Coordinates, 1873/1874 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / File: Time Service, Clock Errors, and Other Instrument Readings / File: Instrumental Constants depending on Pulkova Coordinates
Item — Box 71Identifier: KG11365-6, phaedra1690
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

Instrumental Constants depending on Pulkova Coordinates, 1875 Digital

FOUND IN: Wolbach Archives, Wolbach Library, Harvard University / Collection: Harvard College Observatory observations, logs, instrument readings, and calculations / Series: Variable Stars, Meridian Circle Work, and The Beginning of the Pickering Administration / File: Time Service, Clock Errors, and Other Instrument Readings / File: Instrumental Constants depending on Pulkova Coordinates
Item — Box 71Identifier: KG11365-6, phaedra1691
Scope and Contents: This series contains astronomical observations, data calculations, and administrative notes from the beginning of Edward Pickering’s tenure as Director of the Harvard College Observatory with the bulk of the materials dating from 1870 to 1905. The notebooks in this series feature early efforts in variable star analysis and meridian circle work, including HCO efforts to contribute zone measurements to contemporary revisions of the Bonn Durchmusterung. Additional records in this series...

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Subject
Variable stars. 29
Astronomy -- Observations. 9
Asteroids. 5
Astronomical clocks -- United States. 5
Chronograph. 4
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Astronomical photometry. 3
Meteors. 3
Solar eclipses -- Observations. 3
Comets. 2
Longitude -- Measurement -- History. 2
Milky Way 2
Sun -- Research. 2
Asteroids--Orbits. 1
Astronomical instruments 1
Boyden Station (Arequipa, Peru) 1
Nebulae. 1
Stars -- Clusters. 1
Telescope -- 12-Inch Metcalf 1
Time -- Systems and standards -- United States. 1
Women astronomers--United States 1
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