Constellation tour in Summer
Scorpius (The Scorpion)

Click on image to enlarge

Date & Time: May 4 2022, from 24:39 to 25:01 JST(+0900)
Composed 8 shots with 3 minutes exposed
Optical: AF zoom-Nikkor 24-85mm (f=35mm, stop:F4.0)
with Kenko Starry-Night & PRO Softon Clear filters
Auto-guided with EYEBELL CD-1 portable Equatorial
Digital Camera: Nikon D810A
Location: Koumi town, Nagano pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)
Device Size...FX format (36×24mm)
Sensitivity...ISO1600, White Balance...Daylight



Astroarts StellaNavigator 		The constellation of Scorpius is a large and includes many bright stars, that of the lower half of body is bathed in the summer's Milky Way. The asterism of a vast skewed shape of "S" was taken an attention in many ancient cultures, for an example, it was regarded as a gigantic fishhook in Japanese fishing villages.
Alpha Scorpii is well known as Antares meaning of "Rival of Mars", emitting pale red light at the heart of Scorpion. The star is considered as a supergiant and estimated to be about 230 sun diameters. It's about 600 light years away.

   To image of Scorpius with closed Mars


Guide for Deep Sky Objects

Nebulae in north of Antares .....Impressive star field with complicated vast dark & emission nebulae
Nebulosities around head of Scorpius .....Distribution of dimmed nebular around the head of Scorpius
Sh2-1, Sh2-7 .....Dimmed reflection nebula around pi Sco. at the head of Scorpius
M4 .....Globular Cluster just West of Antares, 7 thousand ly. away
M6 .....Open Cluster near a sting of Scorpion, 1800 ly. away
M7 .....Large Open Cluster 3 degree South of M6, 1200 ly. away
M80 .....Compact & dense Globular cluster NW of Antares, 36 thousand ly. away
Bug Nebula .....Unique-shaped planetary nebula in Milky Way
NGC6124 .....An open cluster in SW corner of Scorpius, 2700 ly away
NGC6281 .....Open cluster with 1' diameter 2.5 deg. east of mu Sco.
NGC6334, NGC6357 .....Two diffused Nebulae with unique shapes around the scorpion's sting
Around IC4628, H12 .....Diffused Nebula & Open Cluster at the middle of body
IC4592 .....Dimmed reflection nebula spread just east of beta Sco
Sh2-3 .....Elliptic reddish Hα nebula positioned in southern region
LBN1117 .....Dimmed & vast nebulocity just west of M7
Celestial bodies around Galactic center .....Star field around northern region of M6 & M7 includes galactic center
Celestial bodies around tail of Scorpius .....Scattered bodies around SW region of open clusters M6 & M7



Great triangle in summer
Cygnus

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