Скачать или смотреть Observing Markarian's Chain Galaxies/ Skywatcher Skyliner 300P Flextube Dobsonian Telescope

I have used these optical instruments here in this video:
Skywatcher Skyliner 300P Flextube 12 Inch Dobsonian Telescope.
Maxvision 40mm 68 degrees eyepiece, as a Finder Eyepiece.
APM HDC 20mm 100 Degrees Ultra Wide Angle eyepiece.
APM HDC 13mm 100 degrees eyepiece.
Televue Ethos 13mm 100 Degrees eyepiece.
Televue Ethos 8mm 100 Degrees eyepiece.
Skywatcher SWA 3.5mm 70 degree eyepiece.
Two inch barrel size focus extension tube.

Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. When viewed from Earth, the galaxies lie along a smoothly curved line. Charles Messier first discovered two of the galaxies, M84 and M86, in 1781. The other galaxies seen in the chain were discovered by William Herschel and are now known primarily by their catalog numbers in John Louis Emil Dreyer's New General Catalogue, published in 1888. It was ultimately named after the Armenian astrophysicist, Benjamin Markarian, who discovered their common motion in the early 1960s. Member galaxies include M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435. It is located at RA 12h 27m and Dec +13° 10′.