Celestial hemisphere:  Northern  ·  Constellation: Triangulum (Tri)  ·  Contains:  M 33  ·  NGC 595  ·  NGC 598  ·  NGC 604  ·  Triangulum Galaxy  ·  Triangulum Pinwheel
M33 Triangulum Galaxy, MarkB1971
M33 Triangulum Galaxy
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M33 Triangulum Galaxy

M33 Triangulum Galaxy, MarkB1971
M33 Triangulum Galaxy
Powered byPixInsight

M33 Triangulum Galaxy

Equipment

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Acquisition details

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Description

This is the longest exposure time I've ever attempted for an image. I combined 10 hours of 600sec Ha and Oiii from the Optolong L-eXtreme filtre,  and 24 hours of 300sec with the IDAS LP D2 filtre. I stacked and processed each filter group independently in Pixinsight and then combined and finished in Photoshop CC by overlaying the L-eXtreme data over top of the LP D2.  It's a neat combination when you use a OSC camera like the ASI533mc. I think it allows some nice Ha details to be blended in without being overbearing and noisy. 

L-eXtreme 2" - 293 @ 300s; gain 100
IDAS LP D2 2" - 60 @ 600s;  gain 100
50 dark
50 flats
50 bias (just because I had them)

Orion 80ed CF w/ 0.8 flattener
2" filtre drawer
CGX
ASI533mc
ASI290mm w/ OAG
ASI EAF
ASIAIR pro
Kendrick dew heater

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M33 Triangulum Galaxy, MarkB1971