Dataset details

The target is Rosette Nebula. The data was captured over 3 nights in January, February 2020 from my house in St Petersburg, FL.  Using a mono camera with narrowband filters, I was able to cut through the heavy light pollution & capture some relatively clean data.  The stacked masters are comprised of almost 2 hours of exposures from each filter. 

This data can be processed in a variety of different color pallets, most commonly though is the so called Hubble palette in which the masters are mapped to color channels as follows:

  • SII–> Red
  • HA –> Green
  • OIII –> Blue

Stacked Master Files


File Size: ~157MB

File Type: TIF

Acquisition details

Target: The Rosette Nebula

Acquired by: Jamie Kenas

Acquisition Date: 1/29/2020, 2/8/2020, 2/27/2020

Location: St Petersburg, FL

OTA: Celestron RASA 11

Camera: ZWO ASI 1600MM Pro

Filters: Baader Highspeed HA, OIII, SII

Exposures:  HA: 300s x22, OIII: 300s x21, SII: 300s x20

Processed Image

A high resolution version of this image can be viewed here:

5 thoughts on “Sample Data – Rosette Nebula in Narrowband

  1. Today, I went to the beach front with my children. I found
    a sea shell and gave it to my 4 year old daughter and said “You can hear the ocean if you put this to your ear.” She placed the shell
    to her ear and screamed. There was a hermit crab inside and it pinched her
    ear. She never wants to go back! LoL I know this is totally off topic
    but I had to tell someone!

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