Astrophotography by Walt Davis

NGC 457 is a bright open star cluster also known as the "Owl Cluster" or the "ET Cluster" and is located in the Cassiopeia constellation. This picture was taken with a Nikon D70 and a 600mm f4 lens. By Walt Davis.

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Object Information

Name: NGC 457
Type: Open Star Cluster
Description: NGC 457 is a bright open star cluster also known as the "Owl Cluster" or the "ET Cluster" and is located in the Cassiopeia constellation. This picture was taken with a Nikon D70 and a 600mm f4 ED lens.
Magnitude: 6.4
Size: 20  x 20 arcminutes
Related Photos: none

References:

NGC 457 Open Star Cluster
Cassiopeia constellation
Google Images

Acquisition

Location:

Latitude 44.841N by Longitude -122.869W at an elevation of 87 meters.
Aumsville, Oregon USA

Date:

 September 28, 2008

Zone: -8 (Pacific Standard Time)
Equipment

Imager:

Nikon D70

OTA:

Nikkor 600mm f4 ED super telephoto lens
Barlow: none
Platform: 2X Super Modified Nikon Imaging Platform
Guiding: Orion StarShoot DSCI II, Nikkor 300mm f2.8 ED lens, and MaxIm DL Essentials.
Imaging
Mode: Mode 2
White Balance: Sunlight

Color Space:

sRGB
Format: RAW (3008 x 2000)

Light frames:

8 x (180 Sec @ ISO 800)

Darks:

none

Flats:

none
Filters: Nikon 39mm UV/IR
Mask: none
f-stops: f4
FOV: 136 x 89 arcminutes
Scale: 2.71 arcseconds per pixel
Software: Nikon Capture 4 Control
Image Processing

Stacking:

Deep Sky Stacker 3.2.1

Combined:

Average
Processing: PhotoShop CS3, Astronomy Tools CS2 V1.5, New Astro Zone System, Noiseware Professional Plugin.
Notes

none

Copyright © 2008 Walt L. Davis All Rights Reserved