Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  HD251900  ·  HD251925  ·  HD252004  ·  HD252088  ·  HD252089  ·  HD252135  ·  HD252245  ·  HD252359  ·  HD252540  ·  HD252678  ·  HD252791  ·  HD252841  ·  HD252842  ·  HD252905  ·  HD41997  ·  LBN 862  ·  LBN 863  ·  LBN 864  ·  LDN 1587  ·  Sh2-261
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Lower's Nebula - SH2-261, F. Londe
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Lower's Nebula - SH2-261

Getting plate-solving status, please wait...
Lower's Nebula - SH2-261, F. Londe
Powered byPixInsight

Lower's Nebula - SH2-261

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Description

Despite my efforts to finish acquiring another target ( I have a small window of about 1 hour & 5 minutes every night),  I have being imaging this target after 11pm for the last few days, 
I had scale this image to .80% and droplet size to 0.85 and I am very please with the results, and it seems finally I got a very good collimation out of my RC.
any comments or how to improve my images are welcome.

Sh2-261, also known as Lower's Nebula or Sharpless 261, is a large faint region of predominantly ionized hydrogen located on the outermost edge of the Milky Way between the Orion and Perseus arm. It was discovered in 1939 by Harold and Charles Lower, who were amateur astronomers. The nebula is surrounded by LBN 862 and LBN 864, and there are several dark nebulae in this field.2 The distance of the nebula is estimated to be about 3000 light years away. The nebula has a size of 80.7 x 53.8 arcmin and a radius of 0.808 deg.
Source Sky & Telescope

Stats: 
Wednesday 8, Temperature  47°F CLOUDS excellent 4%  SEEING regular 60%  WIND excellent8 mph HUMIDITY regular 44%  DEW POINT 41 °F
Friday 10, Temperature  57°F CLOUDS excellent 1%  SEEING regular 70%  WIND excellent 6 mph HUMIDITY regular 47%  DEW POINT 44 °F
Thursday 16, Temperature  59°F CLOUDS excellent 2%  SEEING regular 70%  WIND excellent 4 mph HUMIDITY regular 49%  DEW POINT 47 °F
Friday 17, Temperature  59°F CLOUDS excellent 5%  SEEING regular 60%  WIND excellent 2 mph HUMIDITY regular 49%  DEW POINT 41 °F
Saturday 18, Temperature  61°F CLOUDS excellent 2%  SEEING regular 70%  WIND excellent 9 mph HUMIDITY regular 48%  DEW POINT 42 °F
Sunday 19, Temperature  52 °F CLOUDS excellent 6%  SEEING regular 60%  WIND excellent 4 mph HUMIDITY regular 44%  DEW POINT39 °F

Guiding average with Duo :
RA 0.39" 
DEC 0.31"
Guiding average with Evo :
RA 0.46" 
DEC 0.39"

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Lower's Nebula - SH2-261, F. Londe

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