https://aladin.cds.unistra.fr/AladinLite/
https://sci.esa.int/star_mapper/
(Users can get a sense of where in the sky stars were located in the past – or will be in the future – based on their motions measured by Hipparcos. A visualisation of the 'Hertzsprung-Russell diagram', a tool used by astronomers to study the evolution of stars, is provided as well. The tool can be accessed
here.)
https://hipparcos-tools.cosmos.esa.int/HIPcatalogueSearch.html?
https://tgssadr.strw.leidenuniv.nl/hips/
https://simbad.u-strasbg.fr/simbad/ (
wiki https://simbad.u-strasbg.fr/simbad/sim-fid ( Name resolver )
https://simbad.cds.unistra.fr/guide/sim-url.htx
(Help query )
1.2) https://ned.ipac.caltech.edu/level5/catalogs.html
9)
https://relay.sao.ru/lv/lvgdb/ ( The Data base on galaxies in the Local Volume, which locate within 11 Mpc around the Milky Way or have corrected radial velocities VLG < 600 km/s. It contains 1505 objects. )
https://www.sao.ru/cats/~satr/SNR/snr_map.html
[ It contains designations and basic data for, as of 1983, approximately 440,000
stars, ]
13) the
Henry Draper Catalogue, ( an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; )
14) Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars
15) Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars. In all, 359,083 stars were classified as of August 2017
17) the
Boss General Catalogue (
Boss General Catalogue (
GC, sometimes
General Catalogue) is an astronomical catalogue containing 33,342
stars. )
or IDS is a catalog of double stars. It was published by Lick Observatory in 1963 and contains measurements for 64,250 objects, covering the entire sky.
( It was published by Lick Observatory in 1963 and contains measurements for 64,250 objects, covering the entire sky )
21)
Washington Double Star Catalog (The catalog contains positions, magnitudes, proper motions and spectral types and has entries for (as of June 2017) 141,743 pairs of double stars.)
22) General Catalogue of Variable Stars
http://www.sai.msu.su/gcvs/gcvs/
https://heasarc.gsfc.nasa.gov/W3Browse/all/gcvs.html
https://ngcicproject.observers.org/dss/dss_ngc.htm ( NGC/IC all object images )
https://ngcicproject.observers.org/NGC/ ( All object Detailed Description By NGC images )
https://ngcicproject.observers.org/dss/dss_messier.htm ( MESSIER all connect images )
https://ngcicproject.observers.org/realskyview/lists.htm
https://adventuresindeepspace.com/steve.ngc.htm ( All object Detailed Description )
https://adventuresindeepspace.com/catalogs.html
http://www.klima-luft.de/steinicke/index_e.htm
http://vizier.u-strasbg.fr/vizier/VizieR/constellations.htx#q: Displays boundaries for constellations. Enter coordinates below the list of constellations.
http://www.fourmilab.ch/yoursky:
Get images of entire sky as viewed from a given location at a specified time and date. Their Virtual Telescope shows constellations and other objects at specified coordinates.
http://www.heavens-above.com: Get sky charts and satellite schedules as seen from specified locations. This site also gives the time in various time zones/formats (local time, GMT, UTC) https://www.heavens-above.com/constellation.aspx?
https://simbad.u-strasbg.fr: If you want to find more information about a star, Simbad is often a good place to start. If you enter the position in the position search you’ll find a list of nearby objects. If there’s more than one, click on the nearest to your position and you’ll get information on measurements of the star: brightness, parallax (3261/parallax in mas is the distance in lightyears), and spectral type. With the help of astronomical text books, you can use the last to get an estimate the diameter and mass of the star. Occasionally those are directly measured too.
*Help guides*
https://simbad.cds.unistra.fr/guide/otypes.htx
https://www.analog.com/en/signals/articles/james-webb-space-telescope.html
Chandra photos
https://chandra.harvard.edu/photo/2021/m87/more.html
