150 subs 120 Seconds each exposure 5 Hours integration
QHY 268m camera Gain 37 Offset 5 APS-C sensor -15C
10 darks at 120 Seconds each
Antlia Ha 3nM filter, 2-inch diameter, mounted
Bortle 5 Sky ambient temp 51 Degrees F 5-21-2023
Esprit 100ED triplet refractor 100mm x 550mm no reduction
Using the field flattener supplied by Skywatcher
EQ6R PRO Mount with pier extersion
QHY seven-position filter wheel
Guiding by Orion Starshoot Autoguider TM camera with Orion 80mm x 300mm doublet refractor
Direct ST4 to mount using PHD software
Hand focusing using Bahtoniv mask
Synscaninit observation site cell app
Astro Photography Tool APT image capture
Deep Sky Stacker
Pixinsight
Adobe Photoshop
Adobe Lightroom
Star TalkNGC 6910 is an
open cluster in the constellation
Cygnus. It was discovered by
William Herschel on October 17, 1786. The cluster was also observed by
John Herschel on September 18, 1828. It is a poor cluster with prominent central concentration and Trumpler class I2p.=10.5px NGC 6910 is the core cluster of the
stellar association Cygnus OB9. NGC 6910 is located half a degree east-northeast of
Gamma Cygni, also known as
Sadr. It may be physically related to the
nebulaIC 1318 (also known as the Gamma Cygni Nebula) as it lies at a similar distance, behind the galactic
Great Rift. Cygnus OB9 is located within the
Orion Arm of the
Milky Way. Cygnus OB9's dimensions in the sky are 2.5 degrees by 1.5 degrees, which corresponds to its distance of 175×105 light-years across. It includes many
OB stars, along with supergiant stars, like the
red supergiantRW Cygni.
[7] Gamma Cygni is a foreground star, lying at a distance of approximately 1,500 light years.
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