M97-M108

The Owl Nebula (also known as Messier Object 97 or NGC 3587) is a planetary nebula in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781.

M97 is regarded as one of the more complex of the planetaries. The 16th magnitude central star has about 0.7 solar mass and the nebula itself about 0.15 solar mass. The nebula formed roughly 6,000 years ago.

The nebula gets its name from the appearance of owl-like "eyes" when viewed through a large (>200 mm) telescope under dark sky conditions with the aid of a so-called "nebula filter." The eyes are also easily visible in photographs of the nebula.

Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782.[5] From the perspective of the Earth, this galaxy is seen almost edge-on.

This galaxy is an isolated[3] member of the Ursa Major Cluster cluster of galaxies in the Virgo supercluster. It has a morphological classification of type SBbc in the de Vaucouleurs system, which means it is a barred spiral galaxy with somewhat loosely wound arms. The maximum angular size of the galaxy in the optical band is 11′.1 × 4′.6, and it is inclined 75° to the line of sight.[4]

25 subs 240 seconds @ ISO800

Equipment and tools used:

Captured in Images Plus V5.0

Processed in Images Plus V5.0

EDGE-11 @ f/2

Starizona.com HyperStar

HyperTuned by ED Thomas Deep Space Products CGEM mount

FeatherTouch auto back focuser / Micro Touch SCT focuser Starizona.com

Modified by Hap Griffin Canon T1i

Hutech IDAS V4

AutoGuiding

Orion Solitaire stand alone

 

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