Catalogue Assembly
Hipparcos, Tycho, Bright Star, XHIP and Gaia-enriched records were consolidated, cross-identified and de-duplicated into a controlled stellar population.
The Catalogued Sky from the Proxima System
1gSpace Proxima-Centred Visible Starfield
A controlled reconstruction of the bright and intermediate stellar sky for an observer represented by the Proxima Centauri system barycentre proxy. Catalogue sources were propagated to the frozen reference epoch and transformed to their observer-relative directions, apparent visual magnitudes, relative fluxes and display colours.
The foreground contains exactly 1,491,263 unique catalogue sources selected to Proxima apparent V ≤ 11.5. Proxima Centauri is omitted because it defines the observer origin; Alpha Centauri A and B remain present at their reconstructed Proxima-view directions. The products are controlled scientific visualizations rather than photographs or calibrated radiance maps. Matching transparent constellation-line overlays are supplied in both publication coordinate frames.
- Version
- 1.0
- Publication baseline
- 1 August 2026
- Dataset DOI
- 10.5281/zenodo.21961788
- Observer
- Proxima system barycentre proxy
- Reference epoch
- J2028.5270
- Foreground
- 1,491,263 sources
- Magnitude selection
- Proxima apparent V ≤ 11.5
- Projection
- Plate carrée
- Frames
- ICRS and Galactic IAU J2000
- Public format
- Display-encoded PNG
Scientific Basis
1,491,263 Stars, Transformed Source by Source
This reconstruction is built from individually identified catalogue sources rather than procedurally placed or randomized points. Every source in the accepted foreground population was processed from catalogue astrometry into a Proxima-centred observer solution before rendering. The resulting map preserves source identity and places each star at its calculated Proxima-view line-of-sight direction with observer-relative photometry.
Three-Dimensional Source Solution
Available positions, parallaxes, proper motions and radial velocities were used to construct and propagate the accepted spatial source solutions to the frozen epoch.
Proxima Observer Transformation
The observer position was translated to the Proxima Centauri system barycentre proxy. Each valid source direction and distance were then recalculated from that new origin.
Observer-Relative Rendering
The transformed directions, apparent V magnitudes, relative fluxes and catalogue-derived colours were frozen before direct projection into the publication maps.
Defined Model Limitations
- The foreground is complete only within the accepted fused catalogue, quality policy and Proxima apparent V ≤ 11.5 selection.
- The fixed distant-sky context cannot reproduce the parallax of individual embedded sources or diffuse structures without per-pixel distance information.
- Stellar variability, unresolved orbital motion, transient activity and time-dependent extinction are not evaluated.
- Rendered stellar cores, wings and halos are normalized point-spread functions for unresolved sources, not physical stellar angular diameters.
Public Downloads
Starfield, Constellation and Source Products
Full-sky publication maps and matching transparent constellation-line overlays are provided in ICRS and Galactic coordinates. Three diagnostic SOURCE families expose the transformed foreground and retained context independently of the natural-colour presentation.
Free Public Download // CC BY 4.0 // Attribution Required
Reuse requires credit to 1gSpace and a working link to this source page.
Full-Sky Starfield // ICRS
Proxima-Centred Starfield in ICRS
Plate-carrée celestial-coordinate map centred at RA = 0 h, with right ascension increasing left and celestial north up. This orientation is intended for spherical mapping, astronomical visualization and direct comparison with standard celestial-coordinate references.
Constellation Lines // ICRS
Proxima-Centred Constellation Lines in ICRS
Transparent red great-circle overlay of conventional figures for all 88 IAU constellations, comprising 743 connections between 757 Proxima-view stellar anchors at J2028.5270. It shares the plate-carrée orientation of the ICRS starfield above and is intended for direct compositing. The line figures are not official IAU constellation boundaries.
Full-Sky Starfield // Galactic
Proxima-Centred Starfield in Galactic Coordinates
Plate-carrée Galactic map centred at l = 0°, with positive longitude increasing left and Galactic north up. This form is optimized for full-sky presentation, two-dimensional compositing and direct inspection of the Galactic distribution.
Constellation Lines // Galactic
Proxima-Centred Constellation Lines in Galactic Coordinates
Galactic-coordinate rendering of the same transparent red 743-connection constellation network, centred at l = 0°, with positive longitude increasing left and Galactic north up. The overlay is aligned for direct compositing with the Galactic starfield above. The line figures are not official IAU constellation boundaries.
Source Provenance // Type A
Transformed-Star Monochrome Map
Analytical occupancy map presenting every transformed catalogue star as a dark point on a white background. The retained distant-sky context is omitted, allowing the reconstructed 1,491,263-source foreground to be inspected independently.
Source Provenance // Type B
Catalogue and Background Provenance Map
Binary analytical layer in which transformed catalogue stars are identified by red rods and the retained, unmodified distant-sky context is identified by green points. Brightness is not encoded; the colours indicate provenance only.
Source Provenance // Type C
Brightness-Preserving Provenance Map
Analytical provenance layer using the same red transformed-star and green retained-context convention while preserving the encoded brightness hierarchy. The colours identify source class; their intensity carries the diagnostic brightness parameter.
Request-Only Technical Products
Linear OpenEXR Masters up to 64K
Linear catalogue-foreground and visible composite masters can be supplied at nominal widths up to 65536 pixels. These files preserve floating-point linear data for HDR compositing, spherical rendering, regional reprocessing and professional integration workflows.
EXR masters are not ordinary display images and are not hosted as unrestricted direct downloads because of their size and technical delivery requirements. Availability, resolution, applicable terms and delivery method are confirmed for each request.
Foreground-only // Visible composite // Up to 64K
Request EXR Access
Public Use
Licence and Required Attribution
Unless a specific file is marked otherwise, the STARFIELD, CONSTELLATION-LINE and SOURCE files offered for public download on this page are free to use under the Creative Commons Attribution 4.0 International licence. Reuse, redistribution, publication, adaptation and commercial use are permitted, provided the required attribution is retained and modifications are identified.
Free download does not place the products in the public domain. Credit to 1gSpace and a working link to this product page are mandatory wherever the files, modified versions or imagery substantially derived from them are published.
Version 1.0 is permanently archived on Zenodo under DOI 10.5281/zenodo.21961788.
REQUIRED CREDIT
1gSpace Proxima-Centred Visible Starfield, Version 1.0. DOI: 10.5281/zenodo.21961788. Source: 1gSpace Proxima-Centred Visible Starfield .
CC BY 4.0 applies only to rights controlled by 1gSpace. Incorporated NASA context, constellation topology and stellar catalogue material retain their respective source status, attribution requirements and usage conditions. Reuse must not imply endorsement by NASA, ESA, CDS or any contributing institution.
Credits and Source Data
Acknowledgements
Reconstruction and Publication
1gSpace Proxima-Centred Visible Starfield and Constellation-Line Products.
Distant-Sky Context
Background context derived from NASA/GSFC Scientific Visualization Studio Deep Star Maps 2020, visualization by Ernie Wright.
Stellar Catalogues
Stellar data include ESA Gaia/DPAC and ESA Hipparcos/Tycho products distributed through CDS VizieR, including Hipparcos New Reduction, Tycho-2, XHIP and the Bright Star Catalogue.
Constellation Topology
Conventional constellation figure topology is derived from d3-celestial by Olaf Frohn, used under the BSD 3-Clause licence. The line figures are not official IAU constellation boundaries.
NASA, ESA and catalogue-provider names, together with d3-celestial, identify source material only. No endorsement of 1gSpace or this product is stated or implied.