Archive for August 17, 2021

M57, Planetary Nebula in Lyra: August 2021 Observer’s Challenge Report #151

August 17, 2021

august-2021-observers-challenge-_m57Download


Roger Ivester: Observer from North Carolina

10-inch reflector, fairly bright with well defined edges, gray in color, oval shape with a center void.  Both the NW and SW sides are brighter with greater concentration.  The ring is much lighter, or thiner on the NW, and also on the SE, but more subtle.  A 12th magnitude star lies, so very close to the east of the ring.

3.5-inch Maksutov-Cassegrain telescope at a magnification of 146x, the ring nebula is presented as very dim, round but mostly featureless. The central void can be seen, but fairly difficult.  

102mm refractor at 175x, shows the ring as surprisingly bright on this night of exceptional viewing with sharp and well defined edges.  The center void can be seen, but only as a lighter round gray spot, within the ring. Bright star just to the east.

Pencil sketch below: