视线方向与被观测河外源相近、但距观测者较远的星系。
透过淡淡的外缘螺旋腕可以看见背景星系。
Background galaxies are visible through the faint outer arms.
在这个范围内还散布着引人入胜的其它背景星系，还包括道钉状的前景恒星。
Intriguing background galaxies are scattered around the field that also includes spiky foreground stars.
敏锐的哈勃数据还暴露了更多遥远的背景星系，右边透过NGC 2442的星团和星云可见。
The sharp Hubble data also reveal more distant background galaxies seen right through NGC 2442's star clusters and nebulae.
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