Celestial hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  California Nebula  ·  NGC 1499  ·  The star 50Per  ·  The star ξPer
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California Nebula in HOO, Le Le
California Nebula in HOO
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California Nebula in HOO

Getting plate-solving status, please wait...
California Nebula in HOO, Le Le
California Nebula in HOO
Powered byPixInsight

California Nebula in HOO

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Description

I managed to squeeze a short astro session into a business trip in north of Brazil. Glad I took the travel kit (Canon 200mm f2.8 + AZ GTI) with me

I planned for a 3h session per the forecast, and decided to open aperture to F3.4, or 58mm to increase light gathering efficiency (normally I use F4 or 50mm for better star shape). However the weather was more challenging than predicted, the clouds only gave me 2hrs of expourse time. And the mount went haywire midway probably due to tripod sacking. In the end I only managed to get around 90 mins of usable Ha and 10 mins of O3. Luckily this target is not O3 rich so in the post-processing I brute forced with noise reduction and managed to get OK result.

This proves again, for travel kit, aperture is king.

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California Nebula in HOO, Le Le