Location and equipment data: Location: Boeblingen, Germany, Telescope: 8" GSO Newton, Filter: IR only (no RGB filters), Barlow lens: none, Guiding: none, Camera: DMK 31AU03.AS

M5 - Globular Cluster: Date/Time: 2012/06/22 - 21:30 UTC, Camera settings: Auto max value: 1/15 (auto), Auto reference: 126, Exposure per frame [s]: 65, Brightness: 5, Gamma: 100, Gain: 500, Frames: 6, Darkframes: 5, Flatfields: 0

M51 - Whirlpool Galaxy: Date/Time: 2012/06/23 - 21:30 UTC, Camera settings: Auto max value: 1/15 (auto), Auto reference: 126, Exposure per frame [s]: 110, Brightness: 15, Gamma: 100, Gain: 930, Frames: 14, Darkframes: 8, Flatfields: 0

For both images the stacking was done using giotto V2.21. More details are available on my website.

Carsten Schmitt