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NGC 2298

NGC 2298
Stärebild Puppis (Pup)
Positioun fir d'Equinoxe J2000.0
Rektaszensioun 06h 48m 59,4s
Deklinatioun -36° 00' 19"[1]
Ausgesinn
Hubble-Sequenz VI
Visuell Magnitude 9,35[2] mag
Wénkelduerchmiesser 6,8'
Physikalesch Donnéeën
Gehéiert zu Mëllechstrooss
(Canis-Major-Zwerggalaxie)
Distanz (Lj) LJ = 30000
PC = 9300[3]
Routverrécklung +0,000498 ± 0,000004
Radialvitess (+149,4 ± 1,3)[1]
Absolut Hellegkeet −6,3[4]
Alter (12,9 ± 1,4) Mia.[5]
Geschicht
Entdecker James Dunlop
Entdeckungsdatum 8. Mee 1826
Katalog- an Entdeckerbezeechnungen
0647-359
GC 1463
h 3065
NGC 2298
ESO 366-SC22
GCl 11
Dun 578

Den NGC 2298 ass e Kugelstärekoup am Stärebild Puppis an huet eng Wénkelgréisst vu 6,8' an eng visuell Magnitude vun 9,35 mag. De Kärradius ass 16,3", d'Flächenhellegkeet ass 18,7 mag/arcsec2[6].
De Stärekoup gouf den 8. Mee 1826 vum James Dunlop entdeckt.

Portal Astronomie

Referenzen

[Quelltext änneren]
  1. 1,0 1,1 SIMBAD-Datenbank
  2. van den Bergh et al.: "Diameters of Galactic globular clusters"; in: Astrophysical Journal, Vol. 375, S. 594ff.
  3. Dinescu et al.: "Space Velocities of Globular Clusters. III. Cluster Orbits and Halo Substructure"; in: The Astronomical Journal, Vol. 117, Issue 4, S. 1792ff.
  4. Forbes et al.: "The Globular Cluster System of the Canis Major Dwarf Galaxy"; in: The Astronomical Journal, Vol. 127, Issue 6, S. 3394ff.
  5. M. Salaris, A. Weiss: "Homogeneous age dating of 55 Galactic globular clusters. Clues to the Galaxy formation mechanisms."; in: Astronomy and Astrophysics, Vol. 388, S. 492ff.
  6. E. Noyola, K. Gebhardt: "Surface Brightness Profiles of Galactic Globular Clusters from Hubble Space Telescope Images"; in: The Astronomical Journal, Vol. 132, Issue 2, S. 447ff.
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NGC 2298
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