20140906-1259UTC-Ellerman

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20140906-1259UTC-Ellerman

Description:

Is this a Ellerman Bomb? Is in AR12157. Peak was approx at 1259 UTC.

This animation covers approx 12 minutes with approximately 2 minutes between the first and second images, and 1-minute intervals for the remainder.

This is heavily cropped from the full disk images.

North is up.

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

Date: 6 Sep 2014  12:56 PDT, 19:56 UTC (my laptop time) at start.

Scope and f/: Lunt LS100THa (Hydrogen-Alpha filtered) with BF1800 at f/7. The DSII (double stack filter) is 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  16-bit mode with hardware Region-of-Interest turned on for a 2192x2192 image size.

Camera temperature: 126.4 F (52.4 C) at the beginning of this portion of the imaging sequence.

Camera binning: None.

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

Filters: none.

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.