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Telescope observations, star catalogs, exoplanet surveys, galaxy morphology, gravitational waves, spectroscopy
3,259 datasets
The Principal Galaxy Catalog 2003 (PGC2003) contains approximately one million confirmed galaxies brighter than a B-magnitude of ~18. It was created to form the framework of the HYPERLEDA database, superseding the older LEDA catalog, and was made available by NASA HEASARC in July 2004. The catalog provides homogenized galaxy properties and cross-referenced names from 50 sources.
Over 12 years from June 2000 to October 2012, the Chandra X-Ray Observatory captured 852 ks of observations of the nearby galaxy M 51. The catalog presents 298 X-ray sources detected within the galactic D25 radii, with properties analyzed using the ACIS Extract software. This table was created by NASA HEASARC in January 2017 based on data from the reference paper.
Spitzer IRAC observations and photometric catalogs are presented for the Massive Young star-forming complex Study in the Infrared and X-ray (MYStIX). The study provides a multi-wavelength census of young stellar members across 20 nearby Galactic star-forming regions, all containing at least one O-type star. The catalogs were created by the HEASARC in February 2014 based on data from the Spitzer Space Telescope, aiming to provide deeper and more reliable source lists than existing studies.
The Orion Nebula Cluster region was observed by the Chandra X-Ray Observatory's HRC instrument for 63.2 ks on 2000 February 4. This dataset contains 742 X-ray point source detections within a 30' x 30' field of view, compiled by NASA HEASARC in March 2007 from a published multi-wavelength catalog of nearly 2900 objects.
The Planck-ATCA Co-eval Observations (PACO) Project Bright Sample Catalog contains 1004 observations of 180 radio sources. NASA's project measured flux densities between 4.5 and 40 GHz from July 2009 to August 2010, almost simultaneously with Planck satellite observations. The catalog provides 24 flux density measurements per observation and includes double power-law spectral fits for 174 point-like sources.
A ten-year project mapping the 3D distribution of galaxies in the nearby universe. The catalog contains 44,599 galaxies selected from the Two Micron All Sky Survey (2MASS) and is 97.6% complete to defined limits, covering 91% of the sky. It was produced by the National Aeronautics and Space Administration, with the final 2MASS data products released in 2003.
The Spitzer Space Telescope Survey of the Agents of a Galaxy's Evolution (SAGE) traces the life cycle of observable matter in the Large Magellanic Cloud. It includes over 6 million sources, such as approximately 150,000 evolved stars and 50,000 young stellar objects, meeting specific signal-to-noise and correlation criteria. The catalog was produced by the National Aeronautics and Space Administration and last updated in March 2026.
Geoscience Australia Data published a semi-detailed gravity survey for the Comet Rolleston area in Queensland. The dataset is a legacy product with no abstract available, and its specific content and scale are not described. It was last updated on 2026-05-06.
2732 reduced spectroscopic data files on Comet Halley, calibrated for wavelength and sometimes flux, collected by NASA's International Halley Watch. The collection spans the full wavelength range and includes calibration data from laboratory sources, sky observations, and photometric standards like stars and other celestial objects. Observations cover the date range from 1984 December 23 through 1988 February 17.
Antarctic and Arctic stratospheric balloon campaigns collected 30-channel Bremsstrahlung X-ray spectra with 50-millisecond time resolution. The BARREL mission, a NASA Living with a Star project, launched over 50 small stratospheric balloons from Halley Bay and SANAE IV bases in Antarctica (2013-2014) and Esrange Space Center in Sweden (2015-2016). Data were designed to study relativistic electron precipitation from Earth's radiation belts in coordination with the Van Allen Probes mission.
Fecal microbial composition and metabolomic profiles from 21 treatment-naïve neuromyelitis optica spectrum disorder (NMOSD) patients and 21 matched healthy controls. Data was generated using 16S rRNA gene sequencing and ultra-high-performance liquid chromatography-mass spectrometry, with a longitudinal follow-up after immunosuppressant treatment. The dataset was authored by Qin Du and last updated on March 18, 2026.
48 channels of medium time resolution, 4 s, Bremsstrahlung X-ray spectra detected with a NaI Scintillator, covering an energy range from 0 MeV to 4 MeV. The BARREL Mission was a NASA Living with a Star Mission of Opportunity designed to study electron losses from Earth's Radiation Belts, providing the first balloon measurements of relativistic electron precipitation. Over 50 stratospheric balloons were launched across campaigns from Antarctica (2013-2014) and Sweden (2015-2016), coordinated with the Van Allen Probes mission.
11,788 of the brightest near and mid-infrared point sources in the sky are cataloged with photometry in 10 bands from 1.25 to 240 microns. The catalog was constructed by NASA's COBE mission from a 10-month cryogenic mission in 1989-1990, providing excellent temporal coverage with 100-1900 measurements per object. It includes variability information, confusion flags, and cross-references to IRAS, 2MASS, and MSX catalogs.
502 point sources detected in three microwave frequency bands (41, 61, and 94 GHz) by the Wilkinson Microwave Anisotropy Probe (WMAP). The catalog is based on data from the entire 9-year sky survey from 10 August 2001 to 10 August 2010, using a method to remove cosmic microwave background fluctuations. The data was produced by the National Aeronautics and Space Administration.
Research by independent researcher Pawan Upadhyay (updated 2026) detailing the Pressure-Curvature (PPC) Law of Gravity and its relation to spacetime curvature. The work synthesizes theoretical derivations with validation data from five historical physics experiments spanning 1959 to 2019.
From June 24 through July 08, 2005 UT, near-IR spectra of Comet 9P/Tempel 1 were obtained with the SpeX instrument at the NASA IRTF. These observations were part of a campaign to support the science objectives of the Deep Impact spacecraft around its encounter with the comet on July 4, 2005. The dataset is provided by the National Aeronautics and Space Administration.
NASA HEASARC provides a catalog of 524 radio sources detected at 1.4 GHz in the field of galaxy cluster A2390, observed with the Very Large Array. The data originates from a deep 31.4-hour observation in October 2008, covering a 34' x 34' area with a noise level of ~5.6 μJy. This table was created in August 2017 based on the CDS Catalog J/ApJS/202/2/.
699 radio sources detected at 1.4 GHz in the field of galaxy cluster A370, observed with the Very Large Array. This catalog is based on one of the deepest radio images of a cluster field, covering a 40' x 40' area with a noise level of ~5.7 μJy near the center. The table was created by NASA HEASARC in August 2017 from a CDS source.
This dataset supports a paper presenting a robust imaging algorithm for multireceiver synthetic aperture sonar (SAS). The algorithm is designed to handle nonuniform situations and redundant receiver cases, aiming to produce high-resolution images where traditional methods fail. It is validated through simulations and experiments, stored in an XLS file of 5.5 KB.
Simulation and experimental results validate a robust imaging algorithm for multireceiver synthetic aperture sonar (SAS). The method focuses datasets in slight nonuniform and redundant receiver cases, outperforming traditional techniques. Data is provided in an XLS file under a CC BY 4.0 license.