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Thursday, April 9, 2009
The Bubble Nebula in HST-palette
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtRcwPwrSq1veox5LK_OUI984_1y4WFiSukHGYFtJYxpeEX_nnLzZLvnvpvKBLuebdr6zPfOCrdADeXa3wwHFKc9-Zjaed-VLYqNyD6R16-_R8VCeFL-nKUcHH_dO3UaW9MKv8sKyAb_U/s400/Bubble_HST.jpg)
I relized yesterday, that I actually shot Narrowband colors for the Bubble Nebula!
The colors are from a small part of the wide field image belowe. I marked it there.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioSUccaF4MtoUHVD5Agclc8DuaCFZiAVG9MSHf7ReFbkHVNaHmrkUK_QtheihLxssvIgqeAoWi8y5Id7k_tr5NpLK4ejill_O4GDZcKBZO6Ezn3pkcgb-3JZVFZYxBQAdK4YKNNJpMukk/s400/bubCOLORS.jpg)
This image of Sh2-157 is shot November 10 2008. The original image and data can be found
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGh2QEOamg_zC1-2eTrT3sk_xngC9iW-xsLLe8UMeSEcPXHQmPzS3FmA-MqgIGHoYe4Ad3xrfAjiEkv37EvMqHQ2VLUgGCBVJ8MyXBZBuBHC0HRqfx4SZIJ-vyuf-AYQVDLouvQb7EDI8/s400/Bub_LUMINENS.jpg)
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It's amazing how litle and low resolution color information is enough to build HST-palette image.
The signal from S-II and O-III channels is carefully mixed to a H-a channel.
Then the O-III and S-II boosted H-a channel is used as a luminance.
I must try this tecnique with some other, older , narrowband images as well!
Labels:
Narrowband color images,
nebula
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