Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  HD236773  ·  HD9352  ·  LBN 633  ·  PK128-04.1  ·  Sh2-188
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SH2-188 Planetary Nebula, Rick Schneider
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SH2-188 Planetary Nebula

Getting plate-solving status, please wait...
SH2-188 Planetary Nebula, Rick Schneider
Powered byPixInsight

SH2-188 Planetary Nebula

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Description

A very cool planetary, with its fast moving central star (whte dwarf) - moving at about 125km/sec relative to the Interstellar medium (ISM). Planetary's normally have a generally spherical shell of gas surrounding the central star. However the rapid movement of SH2-188  relative to the ISM creates a bow shock wave (the bright crescent) in the direction of its travel through the ISM.

Taken over multiple short imaging sessions in November and December, 2023 - in gaps in the very miserable weather we are having this fall.

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