Deletion of Morning width

Comment: to Glossary_of_astronomy#M where it is mentioned. Using a simple -style search, I easily fixed the Gcal reference and added two more, an astronomy text and a review of a historical source. With these sources, the term looks verifiable. I haven't found sufficient sourcing for notability, but there is already a good target for merging--its entry in the glossary of astronomy. It is our policy, per , to prefer merging verifiable material to deletion when there is a reasonable merge target. Following policy, I recommend a merge. --&#123;&#123;u&#124
Stance: merge
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE||WP:ATD)