HSTPROMO: The High-resolution Space Telescope Proper Motion Collaboration

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The HSTPROMO collaboration studies a set of related research projects with various high-resolution space telescopes (Hubble, Gaia and other future telescopes), with overlapping sets of investigators, all aimed at improving our dynamical understanding of stars, clusters, and galaxies in the nearby Universe through measurement and interpretation of their proper motions (PMs).

Individual projects are pursued by traditional teams consisting of a Principal Investigator (PI)/Lead Author and select Co-Investigators (CoIs)/Co-authors. HSTPROMO adds coherence to the overall effort, and provides a framework for sharing of techniques, expertise, models, and insights.

After nearly 20 years of work, our collaboration has had 69 Hubble Space Telescope (HST) projects awarded in highly competitive peer-review, supported by 9.8 million dollars in NASA research funding. A total of 60 Hubble-related papers and 22 Gaia-related papers have been completed, with many others in preparation. We are also leading 7 guaranteed-time JWST projects, and are starting to publish our first JWST-related papers. Our research results have been the topic of 17 press releases, a live-televised NASA press conference, 2 Astronomy Picture of the Day images, and 2 Gaia image of the week images. It has been discussed by Nature Magazine, Scientific American, National Geographic, CNN TV, and many other media outlets around the world.

A brief summary of the main HSTPROMO projects and results can be found in van der Marel et al. (2014), which summarizes our work on globular clusters; young star clusters; stars and stellar streams in the Milky Way halo; Local Group galaxies, including dwarf satellite galaxies, the Magellanic Clouds, and the Andromeda galaxy; and AGN Black Hole Jets. A more extensive review of Local Group proper motion dynamics is presented in van der Marel (2014). Slides from a recent talk about some of these results can be found here.

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(The HSTPROMO logo was designed by Elena Montuschi).

Lead Coordinators


Associates/Advisors/Former Members

Press Releases, Images, and Media Attention


Refereed Gaia Papers

Data Release 3

Data Release 2
Data Release 1

Refereed JWST Papers

Refereed Hubble Papers

Review Papers

Hubble Projects

James Webb Projects


Last modified March 14, 2024.
Roeland van der Marel, marel@stsci.edu.
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