Author

Wm. E. Sperra

OpenAlex ID: A5087732574

The Nature of the Light Variation of SU and SW Draconis

1910 · Wm. E. Sperra · Astronomische Nachrichten · 3

Observations of variable stars, No. 14

1913 · Wm. E. Sperra · The Astronomical Journal · 1

Kleine Mitteilungen

1910 · W. Krebs, Wm. E. Sperra · Astronomische Nachrichten · 1

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Observations of variable stars, No. 8

1900 · Wm. E. Sperra · The Astronomical Journal · 1

Observations of variable stars, No. 7

1898 · Wm. E. Sperra · The Astronomical Journal · 1

On the nature of the light-variations of 3407 S Antliae

1897 · Wm. E. Sperra · The Astronomical Journal · 1

Observations of variable stars, No. 13

1913 · Wm. E. Sperra · The Astronomical Journal

Probable Variability of BD +70°692 = 38.1910 Draconis. 1855.0 12h 10m 48° +69° 48′.3

1910 · Wm. E. Sperra · Astronomische Nachrichten

Observations of variable stars, No. 12

1909 · Wm. E. Sperra · The Astronomical Journal

Preliminary Note on the Observation of Several Harvard Variable Stars Discovered in 1907

1908 · Wm. E. Sperra · Popular Astronomy

Observations of variable stars, No. 11

1908 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 10

1908 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 9

1904 · Wm. E. Sperra · The Astronomical Journal

Erratum [On the nature of the light-variations of 3407 S Antliae]

1898 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 6

1898 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 5

1898 · Wm. E. Sperra · The Astronomical Journal

Minima of the Algol-type variable 320 U Cephei,1894-1896

1897 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 4

1897 · Wm. E. Sperra · The Astronomical Journal

Observations of variable stars, No. 3

1897 · Wm. E. Sperra · The Astronomical Journal

On the variation of Sawyer's new short-period variable in Gemini

1896 · Wm. E. Sperra · The Astronomical Journal

Observations of Short-Period Variable Stars

1896 · Wm. E. Sperra · Popular Astronomy

Observations of variable stars, No. 2

1896 · Wm. E. Sperra · The Astronomical Journal

Maxima and minima of variable stars

1895 · Wm. E. Sperra · The Astronomical Journal

Works count: 23

Citation count: 8

H-index: 1

I10-index: