Local Group Archives

Larger image A high-resolution version of the map is freely available in Zenodo at doi: 10.5281/zenodo.17532709 ; and also at Flickr link: https://www.flickr.com/photos/203760891@N04/albums/72177720330064262, with other graphical versions of the figure, with Creative Commons Attribution–Non-commercial 4.0 International License (CC BY-NC 4.0). -- Research Notes of the AAS

Astronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Status Report, Stellar Cartography

A Revised Three-dimensional Stellar Cartography: Visualization Of The Local Group of Galaxies

by Keith CowingNovember 15, 2025November 15, 2025

A new three-dimensional reconstruction of the Local Group (142 confirmed members) and nearest galaxies (6 members) is presented, addressing the lack of up-to-date visual representations that reflect the rapid pace […]

Distance vs. Stellar Mass for over 15,000 known galaxies out to 50 Mpc (Ohlson et al. 2024). Galaxies are colorcoded by their Hubble “T” Type, with early type galaxies T < 0 and late-type galaxies T > 0. The three stellar luminosity depth limits – RGB, sub-Red Clump, and sub-oMSTO – are shown as lines, corresponding to the distances where they are achievable for massive galaxies, and color-coded according to Fig. 1. The distances for these 3 depths achievable with HST and JWST are shown as dashed lines, while those achievable with HWO are shown as solid lines. The increase in galaxy diversity accessible from JWST→HWO is striking. The color bimodality of galaxies (e.g., Baldry et al. 2004) is visible within HWO’s reach, as is the Virgo Cluster which is notable as a vertical line of enhanced density. -- astro-ph.GA

Astronomy & Telescopes, Imaging & Spectroscopy, Status Report, Stellar Cartography

Resolving Individual Stars in Nearby Large Galaxies with the Habitable Worlds Observatory

by Keith CowingJuly 5, 2025July 5, 2025

The varied and dynamic evolutionary histories of galaxies give rise to the stunning diversity in their properties that we observe in the present-day universe.

Local Group

A Revised Three-dimensional Stellar Cartography: Visualization Of The Local Group of Galaxies

Resolving Individual Stars in Nearby Large Galaxies with the Habitable Worlds Observatory

Miraflores Butte On Mars

Ocean World Exploration: 2026 American Samoa ROV + Mapping Exploration

Development Of An Adaptive Optics Testbed At MPIA For The ELT/Planetary Camera And Spectrograph (PCS)

Exploring Long-period Architectures: Four New Planet Candidates from Kepler with Periods >342 days

The Selfish Ribosome