This one actually has some propeller shaped material streaming out from it. It's only just barely visible above the noise for this image though and they extend beyond the boundaries of the image. See them clearly here.
Red: hst_06119_27_wfpc2_f814w_pc_sci
Green: Pseudo
Blue: hst_06119_27_wfpc2_f555w_pc_sci
North is NOT up.
Tags: NGC6309 planetary nebula HLA Hubble
NGC 3918 is one of the more complex planetary nebulas. If we could see a ten-thousand year movie of it we could understand it a bit better. Too bad that's impossible. If you find a young planetary nebula you could start now and have many subsequent generations of humans continue to perform the task, supposing that they care enough about it and have the necessary resources. I have a hard enough time looking at just twenty years of archival data. I can't even begin to imagine ten-thousand years.
I had to significantly dim the bright center to reveal all the knots around the core.
Red: hst_06119_18_wfpc2_f814w_pc_sci + hst_11122_08_wfpc2_f658n_pc_sci
Green: hst_06119_18_wfpc2_f555w_pc_sci + hst_11122_08_wfpc2_f656n_pc_sci
Blue: hst_11122_08_wfpc2_f502n_pc_sci
North is NOT up.
Tags: NGC3918 planetary nebula HLA Hubble
Here's another one of those rainbow colored nebulas, aptly named the Spirograph Nebula.
Red: hst_08773_10_wfpc2_f658n_pc_sci
Green: hst_06353_09_wfpc2_f656n_pc_sci
Blue: hst_08773_10_wfpc2_f502n_pc_sci
North is up.
Tags: IC418 spirograph nebula planetary nebula HLA Hubble
Oh no you didn't cut off that nebula and create a terrible tangent at the edge of the composition. ...Yep, you did. Oh, Hubble.
Composition aside, NGC 2440 is a lovely nebula. Cloudy tendrils seem to reach vainly toward their progenitor but they are destined to be blown away and eventually dissipate into the vacuum of space; such a fleeting vision. Maybe one day the matter shed from this star will find its way into another star, planet or some living being. No one can say for sure.
Red: hst_11090_04_wfpc2_f658n_wf_sci + hst_11090_04_wfpc2_f675w_wf_sci
Green: hst_11090_04_wfpc2_f656n_wf_sci + hst_11090_04_wfpc2_f555w_wf_sci
Blue: hst_11090_04_wfpc2_f502n_wf_sci + hst_11090_04_wfpc2_f439w_wf_sci
North is NOT up.
Tags: NGC2440 Hubble HLA planetary nebula
Here's another little planetary with two very close filters (f658n & f656n) but there is significant enough distinction between them to generate a more colorful image. I did end up boosting the saturation a bit with an adjustment layer. I usually don't do that.
Small amounts of data is missing from the corners.
Red: hst_08345_48_wfpc2_f658n_pc_sci
Green: Pseudo
Blue: hst_08345_48_wfpc2_f656n_pc_sci
North is up.
Tags: PK023-02D1 planetary nebula HST HLA Hubble M 1-59
