Deep Sky Object in Summer
Nebulosities around head of Scorpius

Click on image to enlarge

Date & Time: May 4 2022, from 23:46 to 24:42 JST(+0900)
Composed 8 shots with 8 minutes exposed
Optical: AF zoom-Nikkor 80-200mmF2.8ED (f=80mm, stop: F4.0)
with IDAS LPS-D1 Light-pollution suppression filter
Auto-guided with TAKAHASHI EM-200 Equatorial
CMOS Camera: ZWO ASI2600MC Pro (Cooled temp.: -20°C)
Location: Koumi town, Nagano pref.

Camera Settings: Recording format...16bit FITS, converted to 16bit TIFF(6248×4176)
Device Size...23.5×15.7mm, Gain...100


Objects around Scorpion's head
This image shows you the star field around Scorpion's head with a medium-raged telephoto lens. The image contains the Antares region in previous page, you can see various shaped diffused and dark nebulae distributed in almost all view of the image. The Milky Way is flowing in left hand side of image, you can see striped dark nebulae of B44 and B45 are ranging from there to around Antares. The stars forming the Scorpion's head delta and pi Sco are surrounded by vast and indistinct reddish nebulae of Sh2-7 and Sh2-1, respectively. Those nebulae cannot be detected by our naked eyes but long-exposed pictures can show us its faint figures.



Northern region of Antares
Sh2-1, Sh2-7

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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