Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  NGC 5477  ·  Pinwheel galaxy
M 101 just Ha crop, CCDMike
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M 101 just Ha crop

M 101 just Ha crop, CCDMike
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M 101 just Ha crop

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Description

I had a hard time making my first steps in mono narrowband and targets are getting scarce these days.
Being too lazy to change cameras at 3am, I decided to give a galaxy a chance to show me what it's got in Ha (like today's IOTD).

I decided on M 101, which is near the zenith at this time of day, and did 19 x 300 sec with the Optolon 7nm Ha filter and was not disappointed (data just streched, no flats, just darks)! Unfortunately the dawn came up but I will add this in the next nights when my nebula target is too low .

...then I'll switch over to OSC and galaxy hunting

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  • Final
    M 101 just Ha crop, CCDMike
    Original
  • M 101 just Ha crop, CCDMike
    B

B

Description: Luminance with QHY294MM gain 500

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M 101 just Ha crop, CCDMike