Henize 2-437 (Hen 2-437, He2-437, PN G061.3+03.6, PK 061+03.1) Planetary Nebula in Vulpecula. Taken
July 16, 17, 18, 19 and July 20, 2020. Imaged with Starlight Xpress’ SX-825 camera and a Celestron
EdgeHD 9.25 at f10, on a Losmandy G11/Gemini mount. The H alpha subframes were 12 minutes binned 1x1,
the OIII subframes were 12 and 15 minutes binned 1x1, while the RGB subframes were 4 minutes binned
1x1 and 2x2, resulting in the following total exposures L:R:G:B = (HA+OIII):(R+Ha):(G+OIII):(B+OIII)
(min) = (240+315):(28+240):(28+315):(28+315). This image is upsampled 2x and cropped from the
original, and is displayed at 0.281 arcsec/pixel. Captured with Nebulosity, calibrated, sigma
combined in Iris with other processing using PixInsight LE and Photoshop CS. North is up.