The High Energy Astrophysics Science Archive Research Center (HEASARC) is the
primary archive for NASA's (and other space agencies') missions studying
electromagnetic radiation from
extremely energetic cosmic phenomena ranging from
black holes to the Big Bang. Since its
merger with the Legacy Archive for Microwave Background Data Analysis
(LAMBDA) in 2008, the HEASARC
archive contains data
obtained by high-energy astronomy missions observing in the
extreme-ultraviolet (EUV), X-ray, and gamma-ray bands, as well as data from
space missions, balloons, and ground-based facilities that have studied the
relic cosmic microwave background (CMB) radiation in the sub-mm, mm and
The HEASARC is a member of the NASA Astronomical
Virtual Observatories (NAVO) where we work with other NASA archives to
ensure comprehensive and consistent VO access to NASA mission datasets.
Users may now query the HEASARC's catalogs using VO-enabled services and
specialized tools. This page describes
how to get to the HEASARC VO-enabled
services and provides information on other HEASARC VO activities.
- NGC 2000.0 Catalog Updated (22 Sep 2022)
NGC 2000.0 is a modern compilation of the New General Catalogue of Nebulae and Clusters of Stars (NGC), the Index Catalogue (IC), and the Second Index Catalogue compiled by J. L. E. Dreyer (1888, 1895, 1908). This catalog is now available in
Browse and Xamin.
- General Catalog of Variable Stars, Version 5.1, June 2022 (22 Sep 2022)
The latest version of this catalog of 58,202 confirmed variable
stars (from Samus
et al. 2017, ARep, 61, 80) is now available in Browse and
- The Million Quasars Catalog (19 Sep 2022)
The latest version (v7.6, 15 September 2022) of the
(MILLIQUAS) Catalog (Eric Flesch 2009 - 2022)
is now available in both Browse
This version contains over a million (1,613,389 to be exact) objects which
are either certainly quasars or very likely to be quasars.
- NuSTAR Caldb Update (14 Sep 2022)
The NuSTAR FPM caldb has been updated to version 20220912. This release includes a new clock correction file, v146. Please see the release notes for more details.
- NASA Hubble Fellowship Program (NHFP) Now Accepting Applications (8 Sep 2022)
The NHFP supports promising postdoctoral scientists
performing independent research that contributes to NASA
Astrophysics. The research may be theoretical,
observational, and/or instrumental.
The Announcement of Opportunity, which includes detailed program
policies and application instructions, is available at the website. The application submission page will be open from September 6 until November 3, 2022.
- Swift SC CALDB updated (07 Sep 2022)
The Swift SC caldb has been updated to version 20220907 ...
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