NGC 7023 - Iris Nebula Caldwell 4

Mar 2026
NGC 7023
author image @jeremy Redford, MI

2

Iris Nebula Caldwell 4 Seestar Collective https://stcollective.net/

Lights

Filter NO FILTER
Lights 82
Single Exposure 3600 sec
Total Exposure 3 days 10 hr
Gain 80
Offset 200
Temp (°C) -10.0 °C

Equipment

Camera ZWO Seestar S50
Telescope ZWO Seestar S50
Reducer None
Guide Camera ZWO Seestar S50
Guider None
Mount ZWO Seestar
Tripod ZWO Carbon Fiber Tripod TC40
Filter Wheel None
Eaf ZWO Seestar
Dew Heater ZWO Seestar

Nights

Capture Dates Moon Illumination
25 March 2026 Waxing Crescent (41.43%)

Software

Acquisition

Seestar
Processing

Siril

NGC 7023 - Iris Nebula

Mar 2026
NGC 7023
author image @jeremy Redford, MI

1

Iris Nebula Seestar Collective https://stcollective.net/

Lights

Filter NO FILTER
Lights 10268
Single Exposure 20 sec
Total Exposure 2 days 9 hr
Gain 101
Offset 200
Temp (°C) -10.0 °C

Equipment

Camera ZWO Seestar S50
Telescope ZWO Seestar S50
Reducer None
Guide Camera ZWO Seestar S50
Guider None
Mount ZWO Seestar
Tripod ZWO Carbon Fiber Tripod TC40
Filter Wheel None
Eaf ZWO Seestar
Dew Heater ZWO Seestar

Nights

Capture Dates Moon Illumination
22 March 2026 Waxing Crescent (11.7%)

Software

Acquisition

Seestar
Processing

Siril