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| Click image for higher resolution |
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| Object name: |
Sharpless 2-129 and Outters 4 |
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Optics: |
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TEC 110 FL Fluorite Apo with original flattener |
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Objekt type: |
Emission nebula |
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Focal lenght: |
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616
mm |
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Constellation: |
Cepheus |
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Camera: |
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FLI ML 16803-65 |
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Location / Date: |
Remseck
/ 25th of September 2016 |
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Exposure: |
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25
x 1200 sec Ha / 25 x 1200 sec OIII / 1 x 300 sec RGB - Total exposure approx. 17 hours |
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Distance: |
approx.
2300 ly |
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Filters: |
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Astrodon 3 nm narrowband filters / Baader LRGB filters |
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Apparent dimensions: |
approx. 3° |
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Mount: |
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10micron
GM2000 HPS |
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Real dimensions: |
- |
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Autoguiding: |
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Off-Axis Guider - SX Lodestar |
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Brightness: |
- |
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Software: |
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MaxIm DL
/ Registar / Photoshop CS5 / PixInsight / Straton |
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Position
(R.A. / DEC): |
21h
10' / +59° 45' |
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Image processing: |
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Tone mapping according to real colors |
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Explanation
Sharpless2-129 (Sh2 129) is a very faint emission nebula in constellation Cepheus. It is represented by the red HII - part of the image. This nebula is also know by it's common name "flying bat"-nebula.
The blue nebula inside Sh2 129 is Outters4, also called "the giant squid". This nebula
was discovered in 2011 by Nicolas Outters and is emitting it's light only in OIII. The real dimension of OU 4 is about 50 lightyears.
At the lower edge there is the small nebula vdB 140 visible.
This image was set to APOD (Astronomy Picture of the Day) at 2016 October 27
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