Deep Sky Object in Summer
Around Sh2-81 (Molecular Cloud in Aquila)

Click on image to enlarge

Date & Time: Jul 25 2025, from 22:57 to 24:23 JST(+0900)
Composed 18 shots with 5 minutes exposed
Optical: BORG 67FL with conversion lens (f=324mm, F4.8)
with IDAS LPS-P1 Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Canon EOS 6D (Remodeled)
Location: Hitachi-oota city, Ibaraki pref.

Camera Settings: Recording format...14bit CCD-RAW, converted to 16bit TIFF(5472×3648)
Device Size...36×24mm, Sensitivity...ISO1600


Sh2-81 / Molecular Cloud
R.A.20h 01m 14.4s (2000.0)
Dec.+11°48' 50" (2000.0)
Apparent Size10.0'
Real SizeN/A
Magnitude -
Distance6500 light yrs.
Sh2-81 is an extremely faint molecular cloud drifting about 4 degrees northeast of Altair in the constellation Aquila. It spans roughly 10 arcminutes, but its structure is indistinct. Located in a high galactic latitude region, about 10 degrees above the galactic plane, this cold hydrogen gas is thought to faintly reflect the light of surrounding stars. Although related literature on this nebula is limited, its distance from the solar system is estimated to be about 6500 light-years.



Sh2-80
Sh2-82

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