Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  10 gam Sgr  ·  11 Sgr  ·  12 c01 Sco  ·  13 c02 Sco  ·  13 mu. Sgr  ·  18 Oph  ·  19 del Sgr  ·  2 A Sco  ·  20 Sgr)  ·  20 eps Sgr  ·  21 Sco)  ·  21 Sgr  ·  21 alf Sco  ·  22 i Sco  ·  23 tau Sco  ·  24 Sco  ·  25 Sco  ·  25 Sgr  ·  26 Sco)  ·  26 Sgr  ·  26 eps Sco  ·  26 f Aql  ·  3 X Sgr  ·  30 Sgr  ·  32 nu.01 Sgr  ·  34 Sgr)  ·  34 ups Sco  ·  35 Oph)  ·  35 Sco)  ·  36 A Oph  ·  And 1850 more.
Wide field image test, Claudio Tenreiro
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Wide field image test

Revision title: A new go on this wide field image

Wide field image test, Claudio Tenreiro
Powered byPixInsight

Wide field image test

Revision title: A new go on this wide field image

Equipment

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Acquisition details

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Description

The weather has been so bad that...I start rescuing some data from an old test. I was using the Sony Nex5 for wide field images. The lens is a cheap normal one, the Sony E 16-55, and I did try at about 35. The system was mounted on the iOptron skyguider, with visual determination of the polar alignment, this way of alignment, for the south pole, is a pain in the neck, so later I got an iPolar for that. The image has some obvious details, such as deformation at the borders, but the result is not that bad. Oh, another things is noise due to the fact that no dithering was used.

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  • Wide field image test, Claudio Tenreiro
    Original
  • Final
    Wide field image test, Claudio Tenreiro
    B

B

Title: A new go on this wide field image

Description: Histogram alignment and background control but using GIMP background extraction/smooth function, vía plug in shadows control. Also a bit of crop on the left side.

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Sky plot

Sky plot

Histogram

Wide field image test, Claudio Tenreiro