Galaxies NGC4284 and NGC4290 in Ursa Major (Jean-Pierre Lees)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 4284 · NGC 4290

Galaxies NGC4284 and NGC4290 in Ursa Major, Jean-Pierre Lees

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Galaxies NGC4284 and NGC4290 in Ursa Major

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Galaxies NGC4284 and NGC4290 in Ursa Major

NGC4284 and NGC4290 form a close pair, but it is unlikely that the 2 galaxies are physically related, as their radial velocity indicates a distance of 192 Mly for NGC4284 and 140 Mly for NGC4290.
NG4284 is a highly inclined spiral galaxy with a small, bright core and two bright, narrow spiral arms expanding in a broader spiral structure. NGC4290 is a barred spiral galaxy with a bright, elongated core attached to a bright bar. The bar is attached to a pseudo ring which is especially bright where it meets the bar. Another very faint edge-on galaxy is visible 3.75' east of NGC4290.

Doublet de galaxies NGC4284 (en bas) et NGC4290 (au centre) dans la Grande Ourse. Elles sont respectivement distantes de 192 et 140 millions d'années lumière. NGC4290 est une remarquable spirale barrée avec un anneau brillant entouré lui même d'un halo plus diffus. Image de luminance de 45x5mn, Meade LX200 ACF de 25 cm de diamètre à f/10 et ccd CP8-MS, Villaz, 30 et 31 mai 2019

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Galaxies NGC4284 and NGC4290 in Ursa Major

Galaxies NGC4284 and NGC4290 in Ursa Major

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Galaxies NGC4284 and NGC4290 in Ursa Major

Galaxies NGC4284 and NGC4290 in Ursa Major

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