Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Hourglass nebula  ·  IC 1274  ·  IC 1275  ·  IC 4684  ·  IC 4685  ·  Lagoon nebula  ·  M 20  ·  M 8  ·  NGC 6514  ·  NGC 6523  ·  NGC 6526  ·  NGC 6530  ·  NGC 6544  ·  NGC 6546  ·  NGC 6559  ·  The star 11Sgr  ·  The star 4Sgr  ·  The star 7Sgr  ·  The star 9Sgr  ·  Trifid nebula
Getting plate-solving status, please wait...
The Archer's Bow- Star formation region of Sagittarius , 



    
        

            Matt Harbison
The Archer's Bow- Star formation region of Sagittarius
Powered byPixInsight

The Archer's Bow- Star formation region of Sagittarius

Imaging telescopes or lenses: William Optics Star 71 WO Star 71

Imaging cameras: Atik 383L+ Monochrome

Mounts: Astro-Physics Mach 1 GTO

Guiding telescopes or lenses: Willam Optics 50mm Guidescope

Guiding cameras: Starlight Xpress Lodestar

Software: PixInsight  ·  Adobe Photoshop photoshop PS  ·  Sequence Generator Pro

Filters: Baader RGB  ·  Baader Filter HA 7nm 36mm Unmounted

Accessory: Optec Alnitak Flip-Flat Flat Fielder  ·  ATIK Filter Wheel EFW2  ·  Moonlite Crayford Focuser with motor


Dates:June 10, 2016

Frames:
Baader Filter HA 7nm 36mm Unmounted: 20x300" (1h 40') -15C bin 1x1
Baader Filter LRGB 36mm unmounted: 48x120" (1h 36') -15C bin 1x1

Integration: 3h 16'

Darks: ~20

Flats: ~20

Bias: ~20

Avg. Moon age: 5.66 days

Avg. Moon phase: 32.09%

Bortle Dark-Sky Scale: 4.00

Mean FWHM: 3.00


Astrometry.net job: 1117932

RA center: 18h 5' 36"

DEC center: -23° 46' 37"

Pixel scale: 5.254 arcsec/pixel

Orientation: 105.639 degrees

Field radius: 1.825 degrees


Resolution: 620x827

Locations: Chattanooga, Chattanooga, Tn, United States

Description

"The bow of the Archer"

Wide Field in the constellation Sagittarius

Taken during the new moon of June, this single panel image reveals the astounding beauty of the heavens. This region is visible with the naked eye under dark sky conditions. Through a telescope the nebula come alive.

Visible in the photo are the Lagoon Nebula, Hourglass Nebula, Triffid Nebula, Ic4685, and several regions of new star formation not unlike the Orion Constellation.

Along with nebula, Sagittarius also hosts a stellar nursery full of several enormous stars. Of note are yellow giant, 11 Sagittarii, a star 15.2 times the diameter of our own star and 785 times more luminous than our own sun. 4 Sagittarii is a blue-white main sequence star that is only 4.9 times the diameter of our sun. In the core of the Lagoon Nebula, 9 Sagittarii illuminates the body of gasses inside the heart of the Lagoon. The star is an extremely hot O5 star that is 23,000 times more luminous than our sun!

In 2006, research with telescopes such as the Hubble Space Telescope revealed four Herbig-Haro objects inside the hourglass providing the first evidence of active star formation by accretion within it.

Integration, acquisition, equipment and editing:

Captured in Sequence Generator Pro during the new moon of June under a Bortle Sky rating of 4.

20 x Ha, 5 min 1x1
12 x L, 2 min 1x1
12 x R, 2 min 1x1
12 x G, 2 min 1x1
12 x B, 2 min 1x1
Accompanying darks, flats, and bias files.

William Optics Star 71 w/moonlite focuser
ATIK 383L + mono
EFW2 Filter Wheel
Astro Physics Mach 1 GTO

Integrated and calibrated in Pixinsight with levels adjusted in Pixinsight.

Comments

Sky plot

Sky plot

Histogram

The Archer's Bow- Star formation region of Sagittarius , 



    
        

            Matt Harbison