Eastern_Veil - C33, C34 and HIP 102623

July-october, 2023

Alovera-1A
- Takahashi TOA 150B (1100mm f7.3)
- Moravian C3-61000
Frames: Details indicated on each piece of the mosaic

For this region we also show below this paragraph the shots in Hα (656.3 nm, width 6.5 nm) and in Oiii (500.7 nm, width 6.5 nm). You can see the difference of intensity of light captured at each of the corresponding wavelengths: the emission in the Hα line is much more intense (the first picture below this paragraph) than that of the line Oiii (the second picture). The Hα regions are more extensive than the Oiii ones; the latter accumulates in the lower area. Hence, when mixing the images coming from both filters in RGB you can see the accumulation of more bluish tones in that lower area. As always, the way the images obtained are translated into color (RGB) depends on ones likes. We have made that mixing in the closest way to how our eyes would see it, if they could accumulate light for long. That means translating each of the two wavelengths into its RGB representation, and subsequently making the mixing of channels according to the corresponding proportions present on each.

The Eastern Veil region is a filamentary nebular assembly located to the side of the line joining the stars Fawaris III (ηcyg) and Aljanah (εcyg) (figure 1). This region is large and its different parts have a particular name, by zone. The regions shown here are a mosaic of the regions cataloged as C33 (or Eastern Veil), C34 (or Western Veil or also called Filamentous Nebula) and the region where the star HIP 102623 is located. The C34 region appears dominated by the strong brightness of 52 Cyg, a double star of magnitude 4.20.

Region C33

This region is the one that receives the name Eastern Veil.

Alovera-1A
- Takahashi TOA 150B (1100mm f7.3)
- Moravian C3-61000
Frames:

Region C34

This region is also known as Western Veil or Filamentous Nebula. The region is dominated by the brithness of 52 Cyg.

Alovera-1A
- Takahashi TOA 150B (1100mm f7.3)
- Moravian C3-61000
Frames:

Region HIP 102603

Is the intermidiate region between the previous two. With no particular naming for it, we have used the name of the main star in that region.

Alovera-1A
- Takahashi TOA 150B (1100mm f7.3)
- Moravian C3-61000
Frames:

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