20140904-Prom

20140904-Prom

Description:

This is a 56 minute animation with approximately 2 minutes between each capture sequence (28 videos taken).

Inverted the greyscale images for the gif.


Imaging Site: My back-yard in San Diego, Ca.

Date: 4 Sep 2014  13:55 PDT, 20:55 UTC (my laptop time) at start.

Scope and f/: Lunt LS100THa (Hydrogen-Alpha filtered) with BF1800 at f/17.5 (via a installed 2.5x Powermate). The DSII (double stack filter) is not installed.

Mount: Takahashi NJP.

Guiding: None.

Camera: Point Grey Grasshopper Express (GX-FW-60SM-C) monochrome video camera with a ICX694 sensor. Camera is operating in 2736x2192 Format 7  8-bit mode with hardware Region-of-Interest tuned on for a 688x584 image size.

Camera temperature: 122.0 F (50.0 C) at end of imaging sequence.

Camera binning: None.

Number of sub-images and exposure: Various frames from each captured video.

Filters: Installed a IR block filter for grins, I can't tell if it made a difference or not.

Image Calibration: None.

Control, capture and processing with: Astro IIDC and Photoshop on a Mac.


Images may be used for personal and/or educational use only.