Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  NGC 5198  ·  NGC 5229  ·  Whirlpool Galaxy
Getting plate-solving status, please wait...
M51 - Whirlpool galaxy with a Barn Door Tracker, alexhollywood
M51 - Whirlpool galaxy with a Barn Door Tracker
Powered byPixInsight

M51 - Whirlpool galaxy with a Barn Door Tracker

Getting plate-solving status, please wait...
M51 - Whirlpool galaxy with a Barn Door Tracker, alexhollywood
M51 - Whirlpool galaxy with a Barn Door Tracker
Powered byPixInsight

M51 - Whirlpool galaxy with a Barn Door Tracker

Equipment

Loading...

Acquisition details

Loading...

Description

M51 acquired with the last update to the software of my motorized home-made barn door tracker. this version allows to change the speed of the stepper motor according to the angle between the plates in order to reduce the tangent error of the isosceles mount.

Now it is possible to complete a 120 min track without correction. a maximum exposure of 2 minutes with a 300 mm lens has been experimented with this setup.

Comments

Sky plot

Sky plot

Histogram

M51 - Whirlpool galaxy with a Barn Door Tracker, alexhollywood