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
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M101 with L-enhance filter, Ray Heinle
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M101 with L-enhance filter

Getting plate-solving status, please wait...
M101 with L-enhance filter, Ray Heinle
Powered byPixInsight

M101 with L-enhance filter

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Description

Galaxy M 101 is a starburst galaxy containing a large number of regions of star formation, as witnessed by the presence of the many red HII regions. The dual-band filter enhances the red hydrogen alpha regions at the expense of the broadband stars.

The filter bandpass also helps for the urban skyglow.

Comments

Sky plot

Sky plot

Histogram

M101 with L-enhance filter, Ray Heinle