Atomic Data
Kentucky Atomic Line ListOpacity Project
NIST Atomic Spectra Database
Tübingen Model Atom Database
Journals
Astronomy & AstrophysicsThe Astrophysical Journal
The Astrophysical Journal Supplement
The Astrophysical Journal Letters
Monthly Notices of the Royal Astronomical Society
Nature
Nature Astronomy
Science
Archives, Catalogs, Surveys
Mikulski Archive for Space Telescopes (MAST)MAST is a NASA funded project to support and provide to the astronomical community a variety of astronomical data archives, with the primary focus on scientifically related data sets in the optical, ultraviolet, and near-infrared parts of the spectrum.
HST Data Search
FUSE Data Search
IUE Data Search
LAMOST DR6 Search
ESO Science Portal
ESO RAW data query
The All Sky Automated Survey (ASAS)
ASAS is a low cost project dedicated to constant photometric monitoring of the whole available sky, which is approximately 10^7 stars brighter than 14 magnitude. The project's ultimate goal is detection and investigation of of any kind of the photometric variability. One of the main obectives of ASAS is to find and catalog variable stars.
Catalina Sky Survey DR2
All-Sky Automated Survey for Supernovae (ASAS) Photometry Database
Zwicky Transient Facility (ZTF) DR1
The Two Micron All Sky Survey (2MASS)
White Dwarf Catalog
Subdwarf Database
Montreal White Dwarf Database
Useful stuff
SDSS DR16 object explorerMAST CasJobs Query
CasJobs permits large queries, phrased in SQL, on various cataloges (e.g. ATLAS, GALEX, GAIA, TESS, or Kepler data).
SIMBAD
The SIMBAD astronomical database provides basic data, cross-identifications, bibliography and measurements for astronomical objects outside the solar system.
VizieR
VizieR provides the most complete library of published astronomical catalogues -tables and associated data- with verified and enriched data, accessible via multiple interfaces.
Galactic Dust Reddening and Extinction This service gives the Galactic dust reddening for a line of sight, returning a reddening map, the corresponding 100 micron intensity, and dust temperature, along with statistics for each. The total Galactic visual extinction is estimated and, in Single Location mode, extinctions at multiple wavelengths are estimated. The reddening estimates are from Schlegel, Finkbeiner & Davis (1998), who combined results of IRAS and COBE/DIRBE.
Bayestar2015/2017/2019
3D Reddening Map using Gaia, 2MASS, Pan-STARRS 1 from Green et al. (2015. 2018, 2019).
Stilism
3D Reddening Map of interstellar dust in the Local Arm: using Gaia, 2MASS, and APOGEE-DR14 from Lallement et al. (2018)
STARALT - Object Visibility
Staralt is a program that shows the observability of objects in various ways: either you can plot altitude against time for a particular night (Staralt), or plot the path of your objects across the sky for a particular night (Startrack), or plot how altitude changes over a year (Starobs), or get a table with the best observing date for each object (Starmult).
Julian date converter
Converts Calendar date to Julian date or Julian date to Calendar date.
Heliocentric Julian Date calculator
Calculates Heliocentric Julian Date for a given calendar or Julian date.
Flux-Magnitude Conversion - Gemini
Flux-Magnitude Conversion - Spitzer Science Center
Conversion from magnitudes to flux, or vice-versa.
NASA Exoplanet Archive Periodogram Service
Returns periodograms of time series data and supports three algorithms: Lomb-Scargle, Box-fitting Least Squares, and Plavchan.
Theoretical Spectra
Theoretical spectra of planets, brown dwarfs, cool and hot stars.
BaSTI web tools
Stellar evolutionary models.
White Dwarf tracks
White dwarf evolutionary models by the La Plata group.
Sky lines
UVES sky emission spectrum obtained under dark conditions.
Diffuse Interstellar Band Catalog
This site provides a list of Diffuse Interstellar Bands (DIBs), which are relatively broad absorption bands in the spectra of stars behind interstellar matter.
