TURNER, David G. Galactic clusters with associated Cepheid variables. III - NGC 1647 and SZ Tauri. S. 1865–1875. Astronomical Journal [online]. Listopad 1992 [cit. 2019-02-26]. Roč. 104, čís. 5, s. 1865–1875. Dostupné online. DOI10.1086/116363. Bibcode1992AJ....104.1865T. (anglicky)
HEBB, Leslie; WYSE, Rosemary F. G.; GILMORE, Gerard; HOLZMAN, Jon. Photometric Monitoring of Open Clusters. II. A New M Dwarf Eclipsing Binary System in the Open Cluster NGC 1647. S. 555–561. Astronomical Journal [online]. Leden 2006 [cit. 2019-02-26]. Roč. 131, s. 555–561. Dostupné online. DOI10.1086/497971. Bibcode2006AJ....131..555H. (anglicky)
COLLINDER, Per. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. S. B1-B46. Annals of the Observatory of Lund [online]. 1931 [cit. 2019-02-26]. Čís. 2, s. B1-B46. Dostupné online. Bibcode1931AnLun...2....1C. (anglicky)
MELOTTE, P. J. A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates. S. 175. Memoirs of the Royal Astronomical Society [online]. 1915 [cit. 20119-02-26]. Roč. 60, s. 175. Dostupné online. Bibcode1915MmRAS..60..175M. (anglicky)
TURNER, David G. Galactic clusters with associated Cepheid variables. III - NGC 1647 and SZ Tauri. S. 1865–1875. Astronomical Journal [online]. Listopad 1992 [cit. 2019-02-26]. Roč. 104, čís. 5, s. 1865–1875. Dostupné online. DOI10.1086/116363. Bibcode1992AJ....104.1865T. (anglicky)
HEBB, Leslie; WYSE, Rosemary F. G.; GILMORE, Gerard; HOLZMAN, Jon. Photometric Monitoring of Open Clusters. II. A New M Dwarf Eclipsing Binary System in the Open Cluster NGC 1647. S. 555–561. Astronomical Journal [online]. Leden 2006 [cit. 2019-02-26]. Roč. 131, s. 555–561. Dostupné online. DOI10.1086/497971. Bibcode2006AJ....131..555H. (anglicky)
seds.org
spider.seds.org
FROMMERT, Hartmut. Revised NGC Data for NGC 1647 [online]. SEDS.org [cit. 2019-02-26]. Dostupné online. (anglicky)
u-strasbg.fr
simbad.u-strasbg.fr
SIMBAD Astronomical Database: Results for NGC 1647 [online]. [cit. 2019-02-26]. Dostupné online. (anglicky)