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NGC 5307 (2013)

NGC 5307 looks a little strange to me. The nebula shrouding the central star has an interesting, almost nacreous appearance. It reminds me of the inside of a shell of abalone. The whole thing is kind of blurry. Is that because the nebula is dissipating and no longer so sharply defined?

The usual knots of bright, glowing H-alpha are once again red in appearance.

In blue, some He II (f469n) data seemed quite specifically concentrated in the core of the nebula so I emphasized it quite a bit even though it doesn’t glow especially brightly.

I went ahead and used the data labeled “heritage” in the HLA. The label makes me wonder if someone else deserves credit for doing some processing before me. Then again, I’ve been wondering just how much of the data in the archive is automatically processed and how much is done by humans. It seems like a rather thankless job if there are humans doing much of the work.

Red: hlsp_heritage_hst_wfpc2_n5307_f675w_v1_sci_sci + hlsp_heritage_hst_wfpc2_n5307_f658n_v1_sci_sci
Green: hlsp_heritage_hst_wfpc2_n5307_f656n_v1_sci_sci + hlsp_heritage_hst_wfpc2_n5307_f555w_v1_sci_sci
Blue: hlsp_heritage_hst_wfpc2_n5307_f502n_v1_sci_sci + hlsp_heritage_hst_wfpc2_n5307_f469n_v1_sci_sci + hlsp_heritage_hst_wfpc2_n5307_f439w_v1_sci_sci

Copyright information:
Hubble data is public domain. I do, however, request that you credit me for the processing of the image if you use it.

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This work is licensed under a Creative Commons Attribution 3.0 Unported License.