Dumbbell Nebula (M27)
Although no star in Vulpecula shines brighter than magnitude 4.4, this summer constallation does boast the most famous of planetary nebulae, M27, the Dumbbell Nebula. Discovered by Messier in 1764, the Dumbbell got its nickname much later from its resemblance to a bodybuilder’s hand weight. M27 is one of the closer planetaries (815 light years away), and its physical diameter of 1.2 light years also makes it one of the larger.
[description from O’Meara]
Details
Telescope:
RCOS 14.5” f/8
Mount:
ASA DDM85
Camera:
Andor CG16M
Filters:
Astrodon Gen2
Exposure:
HaOIIIRGB 440:440:260:220:220 min.
Location:
ROSA Remote Observatories Southern Alps
Author:
© Martin Rusterholz, Astrophotographer