Frinchaboy, Peter M.; et al. (2008). “Open Clusters as Galactic Disk Tracers. I. Project Motivation, Cluster Membership, and Bulk Three-Dimensional Kinematics”. The Astronomical Journal136: 118–145. arXiv:0804.4630. Bibcode: 2008AJ....136..118F. doi:10.1088/0004-6256/136/1/118. See table I, p. 12.
doi.org
Frinchaboy, Peter M.; et al. (2008). “Open Clusters as Galactic Disk Tracers. I. Project Motivation, Cluster Membership, and Bulk Three-Dimensional Kinematics”. The Astronomical Journal136: 118–145. arXiv:0804.4630. Bibcode: 2008AJ....136..118F. doi:10.1088/0004-6256/136/1/118. See table I, p. 12.
harvard.edu
ui.adsabs.harvard.edu
Frinchaboy, Peter M.; et al. (2008). “Open Clusters as Galactic Disk Tracers. I. Project Motivation, Cluster Membership, and Bulk Three-Dimensional Kinematics”. The Astronomical Journal136: 118–145. arXiv:0804.4630. Bibcode: 2008AJ....136..118F. doi:10.1088/0004-6256/136/1/118. See table I, p. 12.
ngcicproject.org
“NGC 457”. The NGC/IC Project Database. 2012年5月9日閲覧。
