All Questions
Tagged with nebula photography
3 questions
7
votes
1
answer
461
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Why is said that H-alpha emission lines are stronger than the other of the Balmer series?
H-alpha lines are usually the ones you see when observing most nebulae.
If you search why is that, why are H-alpha lines more visible than H-beta, H-gamma or H-delta, the usual answer is that H-alpha ...
- 716
3
votes
1
answer
67
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Is it possible to detect lyman alpha blobs (LABs) with the lyman-break method?
LABs are luminous extended nebulae of hydrogen gas in the early universe (z ≥ 3) found in overdensities of LAEs (lyman-alpha emitters) and LBGs (lyman-break galaxies). I was wondering if LABs could be ...
- 61
4
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1
answer
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Why was StDr56 discovered only now?
StDr56 is a newly discovered planetary nebula (maybe). link1 link2
It was found by amateur astronomers Marcel Drechsler and Xavier Strottner.
According to the above articles, it's pretty big:
With an ...
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