Caldwell 49 - Rosette Nebula

Mar 2025
Caldwell 49
author image @sharon Botnang, Stuttgart

5

Acquired the Rosette Nebula over 8 nights from my South Balcony. The Dual Narrowband filter was processed using the Foraxx palette and then the Light Pollution overlaid.

Lights

Filter NO FILTER NO FILTER
Lights 87 194
Single Exposure 180 sec 180 sec
Total Exposure 4 hr 21 min 9 hr 42 min
Gain 101 101
Offset 200 200
Temp (°C) -10.0 °C -10.0 °C

Equipment

Camera Omegon VeTec571c
Telescope Skywatcher Evolux-82ED
Reducer Skywatcher Flatenner 0.9x Evolux-82ED
Guide Camera ZWO ASI120MM Mini
Guider Askar Off-Axis-Guider
Mount ZWO AM5N
Tripod ZWO Carbon Fiber Tripod TC40
Filter Wheel Svbony SV226
Eaf Gemini Automatic Star Focuser Pro
Dew Heater Svbony SV172
Flat Panel WELZK A3 Light Pad

Nights

Capture Dates Moon Illumination
02 March 2025 Waxing Crescent (5.74%)
03 March 2025 Waxing Crescent (12.59%)
04 March 2025 Waxing Crescent (21.5%)
06 March 2025 Waxing Crescent (42.88%)
07 March 2025 Waxing Crescent (54.03%)
08 March 2025 Waxing Gibbous (64.73%)
17 March 2025 Waning Gibbous (93.24%)
18 March 2025 Waning Gibbous (87.76%)

Software

Acquisition

N.I.N.A

PHD2 Guiding

Stellarium

Touch-N-Stars
Processing

GIMP

RCAstro