NGC 557 (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 557" in Italian language version.

refsWebsite

Global rank Italian rank

low place

low place

887^th place

990^th place

1astrovalleyfield.ca

low place

low place

1,342^nd place

593^rd place

18^th place

104^th place

2^nd place

7^th place

astrovalleyfield.ca

(FR) Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», NGC 500 à 599, su astrovalleyfield.ca. URL consultato il 18 maggio 2024.

caltech.edu

ned.ipac.caltech.edu

Results for object NGC 557, su ned.ipac.caltech.edu, National Aeronautics and Space Administration / Infrared Processing and Analysis Center. URL consultato il 21 maggio 2024.

cseligman.com

(EN) Courtney Seligman, Celestial Atlas Table of Contents, NGC 557, su cseligman.com. URL consultato il 21 maggio 2024.

doi.org

dx.doi.org

Alan Dressler, A Catalog of morphological types in 55 rich clusters of galaxies (PDF), in The Astrophysical Journal Supplement Series, vol. 42, aprile 1980, pp. 565-609, Bibcode:1980ApJS...42..565D, DOI:10.1086/190663.

harvard.edu

adsabs.harvard.edu

Alan Dressler, A Catalog of morphological types in 55 rich clusters of galaxies (PDF), in The Astrophysical Journal Supplement Series, vol. 42, aprile 1980, pp. 565-609, Bibcode:1980ApJS...42..565D, DOI:10.1086/190663.

u-strasbg.fr

simbad.u-strasbg.fr

SIMBAD Astronomical Database, in Strasbourg astronomical Data Center. URL consultato il 21 maggio 2024.