▁four ▁objects ▁in ▁his ▁ 1 7 8 6 ▁work ▁Catalogue ▁of ▁Neb ula e ▁and ▁Cl ust ers ▁of ▁Stars , ▁including ▁two ▁he ▁mistaken ly ▁believed ▁were ▁star ▁clusters . ▁NGC ▁ 2 4 5 9 ▁is ▁a ▁group ▁of ▁five ▁th ir teenth - ▁and ▁four teenth - m agn itude ▁stars ▁that ▁appear ▁to ▁lie ▁close ▁together ▁in ▁the ▁sky ▁but ▁are ▁not ▁related . ▁A ▁similar ▁situation ▁has ▁occurred ▁with ▁NGC ▁ 2 3 9 4 , ▁also ▁in ▁Can is ▁Minor . ▁This ▁is ▁a ▁collection ▁of ▁fifteen ▁un related ▁stars ▁of ▁nin th - m agn itude ▁and ▁f ain ter . ▁ ▁H ersch el ▁also ▁observed ▁three ▁faint ▁galaxies , ▁two ▁of ▁which ▁are ▁interact ing ▁with ▁each ▁other . ▁NGC ▁ 2 5 0 8 ▁is ▁a ▁l entic ular ▁galax y ▁of ▁th ir teenth - m agn itude , ▁estimated ▁at ▁ 2 0 5 ▁million ▁light - year s ▁( 6 3 ▁million ▁parse cs ) ▁distance ▁with ▁a ▁diameter ▁of ▁ 8 0 ▁thousand ▁light - year s ▁( 2 5 ▁thousand ▁parse cs ). ▁N amed ▁as ▁a ▁single ▁object ▁by ▁H ersch el , ▁NGC ▁ 2 4 0 2 ▁is ▁actually ▁a ▁pair ▁of ▁near - adj acent ▁galaxies ▁that ▁appear ▁to ▁be ▁interact ing ▁with ▁each ▁other . ▁Only ▁of ▁four teenth - ▁and ▁fif teenth - m agn itudes ▁respectively , ▁the ▁elli pt ical ▁and ▁spir al ▁galax y ▁are ▁thought ▁to ▁be