Browse Items (39 total)

Hubble, Edwin, Edwin Hubble to V. M. Slipher, April 11, 1930, on nebulae velocity results, 1930-04-11

Hubble requests that Slipher send his unpublished values on radical velocity of extra-galactic nebulae so he can compare them to general results he…

Tags: Edwin Hubble, galaxies, galaxy, Nebula, nebulae, V.M. Slipher, velocity

Hubble, Edwin, Edwin Hubble to V. M. Slipher, July 22, 1932, on spectrographic rotations of nebulae, 1932-07-22

Hubble contacted Slipher to ask if the report he had heard of Slipher observing spectrographic rotations of nebulae was true and, if so, how the work…

Tags: Edwin Hubble, galaxies, galaxy, Nebula, nebulae, spectrograph, V.M. Slipher, velocity

Hubble, Edwin, Edwin Hubble to V. M. Slipher, July 8, 1940, on a catalogue of velocities of nebulae, 1940-07-08

Hubble wrote to Slipher to inform him that Mount Wilson was constructing a catalog of radical velocities of extragalactic nebulae and their…

Tags: dispersion, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, V.M. Slipher, velocity

Hubble, Edwin, Edwin Hubble to V. M. Slipher, August 2, 1940, on the requested spectrographs and related work, 1940-08-02

Hubble relates to Slipher that there is no rush to deliver the images and data as they are imposing on Slipher. He also relates that they are…

Tags: Astronomy, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, spectrograph, V.M. Slipher, velocity

Hubble, Edwin, Slipher's Velocities

A list of velocities observed by V. M. Slipher in relation to nebulae/galaxies' movement to compare with Slipher's and Hubble's respective…

Tags: Astronomy, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, spectrograph, V.M. Slipher, velocity

Hubble, Edwin, Edwin Hubble to V. M. Slipher, June 11, 1941, on the rotation of spiral galaxies and related theories, 1941-06-11

Hubble expresses thanks for Slipher's paper on the rotation of spirals and sent images Slipher requested with the letter, mentioning use of Slipher's…

Tags: Astronomy, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, rotation, V.M. Slipher

Hubble, Edwin, Edwin Hubble to V. M. Slipher, July 27, 1942, on the draft of his paper "The Direction of Rotation of Spiral Nebulae", 1942-07-27

Hubble sent Slipher a copy of a revised paper for possible edits, emphasizing that he would revise it again based on specific spectrographic rotations…

Tags: Astronomy, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, rotation, spectrograph, V.M. Slipher, velocity

Hubble, Edwin, Edwin Hubble to V. M. Slipher, March 6, 1953, on using images for a lecture, 1953-03-06

Hubble wrote to Slipher to request use of a few of his images on velocity and some of his spectra to use with Hubble's own on distance to deliver a…

Tags: Astronomy, distance, Edwin Hubble, galaxies, galaxy, Nebula, nebulae, Red Shift, V.M. Slipher, velocity

Slipher, V. M., Letter from V. M. Slipher to Edwin Hubble, February 15, 1922, discussing a report on nebulae, 1922-02-15

Slipher requesting Hubble's assistance and expertise with nebulae for a report to the International Astronomical Union. Includes suggestions for…

Tags: Edwin Hubble, galaxies, galaxy, Nebula, nebulae, V.M. Slipher

Slipher, V. M., V.M. Slipher to Edwin Hubble, March 3, 1922, in receiving Hubble's response on nebulae, 1922-03-03

Slipher thanks Hubble for his responses and sent him a copy of Wright's letter on nebulae, before encouraging Hubble to send him more research.…

Tags: Edwin Hubble, galaxies, galaxy, Nebula, nebulae, Rome, V.M. Slipher