Hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  1 b Sco  ·  2 A Sco  ·  3 Sco  ·  4 Sco  ·  6 pi. Sco  ·  7 del Sco  ·  Dschubba  ·  PK346+19.1  ·  Part of the constellation Scorpius (Sco)  ·  Sh2-1  ·  Sh2-7  ·  The star 1Sco  ·  The star 2Sco  ·  The star 3Sco  ·  The star 4Sco  ·  The star Dschubba (δSco)  ·  The star πSco
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Delta Scorpii,  Sh2-1,  Sh2-7, 



    
        

            Adam Block
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Delta Scorpii, Sh2-1, Sh2-7

Getting plate-solving status, please wait...
Delta Scorpii,  Sh2-1,  Sh2-7, 



    
        

            Adam Block
Powered byPixInsight

Delta Scorpii, Sh2-1, Sh2-7

Technical card

Imaging cameras: Apogee Alta F9000

Mounts: Paramount MyT software bisque myt


Dates:May 21, 2020

Frames: 240x480" (32h)

Integration: 32h

Avg. Moon age: 28.38 days

Avg. Moon phase: 1.50%


Astrometry.net job: 3653126

RA center: 15h 54' 1"

DEC center: -23° 48' 35"

Pixel scale: 6.166 arcsec/pixel

Orientation: 4.162 degrees

Field radius: 4.044 degrees


Resolution: 2240x4208

Locations: Mount Lemmon SkyCenter, Tucson, AZ, United States

Description

An Aptonym for the ages

In what was surely fodder for good humored jokes among his peers, astronomer Stewart Sharpless studied galactic nebulae in our galaxy. This image shows two early entries in a catalogue that bears his name:

https://www.adamblockphotos.com/sh2-1.html

The humor is found in the fact that he studied things that are truly "sharpless." These clouds of amorphous gas are faint and diffuse. The bright star near the top left is Delta Scorpii (the southwestern star in the head of Scorpius) and surrounding it are the red glowing clouds of gas that comprise Sh2-7. Near the bottom of the frame is the smaller and brighter cavity of Sh2-1 (the first entry in the catalogue).

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Delta Scorpii,  Sh2-1,  Sh2-7, 



    
        

            Adam Block