Pre-8. A seldom imaged planetary

Click on the image for a full resolution version

See this image also on Instagram


Pre 8 is a very faint planetary nebula that was discovered by the amateur astronomer Trygve Prestgard in 2016. It was found after analysing DSS plates and was confirmed shortly afterwards with two sets of spectra taken. This makes it the first definite planetary nebula to be discovered in the constellation of Pisces! In 2017, images were taken at the Kitt Peak National Observatory showing a predominantly [OIII] shell with a size of 1.6 arcminutes. Pre 8 shares its line of sight with large clouds of interstellar dust, which are absent from this image due to it being composed primarily of exposures taken with narrowband filters while broadband filters are necessary to show any dust.

This description has been written by Sakib Rasool, Manchester, UK.



Name(s): Pre-8

Type: Planetary Nebula

RA:  01h 26m 35s (center of the image)

Dec: +18º 59’ 25” (center of the image)

Constellation: Pisces

Size (arcmin): 1.6 arcmin

Magnitude: ND

Distance: ND


Date: 2021-09-16 to 2021-10-28

Location: Curiosity2 Observatory, New Mexico Skies, Mayhill, NM, USA

Size (arcmin): 32×32

Telescope: 24” (61 cm) f/6.5 Reflector

Camera: FLI PL16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 29 hours (Ha: 4 h; OIII: 22 h; RGB (stars): 3 h)

Processing: CCDStack, Photoshop CC 2021



error: Content is protected !!