Sh2-101 (Tulip Nebula)
I have been subscribing to data from the Deep Sky West (DSW) Observatory for some time. DSW is located in New Mexico and offers several fully equipped systems. One of the data sets I received, was data from the emission nebula Sh2-101, located in the constellation Cygnus.
The images were taken with the following equipment:
| Location | Rowe, New Mexico |
| Telescope | Takahashi FSQ-106 |
| Focal length [mm] | 530 |
| Focal ratio | 5 |
| Mount | Paramount MyT |
| Camera | QSI 683-WSG-8 |
| Filter | Hα:[OIII]:[SII] |
| Exposure time [min] | 1080:660:510 |
| Resolution | 2.08″/px |
Data calibration and registration and the final processing was done with PixInsight. First I created an image in the Hubble palette:
The [SII] data was assigned to the red channel, the Hα data to the green channel and the [OIII] data to the blue channel.
The result was as follows:
Then I created also a bicolor image:
The Hα data was assigned to the red channel and the [OIII] data to the green and blue channel.
The result was as follows:
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