Sh2-216

Constellation: Perseus

Sh2-216 is the largest planetary nebulae (in terms of angular size) in the sky, being about 3x wider than the moon. It is about 600 000 years old, explaining why it is so very large and very faint. Sh2-216 is also the second closest planetary nebula at a distance of 420 light years. Link to interactive sky chart.

Dates:

This image was taken on December 18, 2023.

Telescope & Mount:

Celestron 9.25″ EdgeHD with Hyperstar 4.0 on a 10Micron GM1000HPS mount.

Imaging:

Camera: ASI2600MC-Pro (bin 1×1)

Data:
Antlia ALP-T Dual Band 5nm Highspeed: 333x120s (for two panes)

Total integration time: 11h 06′