jeffjastro.com Twitter | Facebook



IFN appears as dust/clouds over entire image, above.

OBJECT

M81 (Bode's w/Holmberg IX) and M82 (Cigar) (and NGC 3077, bottom right) --- "mouse-over" image to see IFN!!!     (top image is reduced-size | other sizes:  medium , original)

Distance:  12 million light years to M81 and M82

Telescope Takahashi FS-60C @ f/6.2
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ -15C
Filters Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 20x10min L (bin1x1); 5x5min ea RGB (bin2x2); AstroArt5, CS4 (cropped, 10xdarks/flats/fdarks/bias)
Date/Location

Notes
27 December 2013 - Las Cruces, NM

This image was captured just a couple of weeks before the supernova in M82 occurred. Even with red to orange-level light pollution from my location in Las Cruces, the very faint Integrated Flux Nebula (IFN) can start to be seen. Mousing over the top image will switch between "normal" and "stretched" background (with galaxies constant), showing the IFN. In addition, clicking the bottom image will show a larger size of the bottom, fully-stretched image. The IFN is a little-studied complex of diffuse dust and clouds in our own Milky Way Galaxy ~ (text from APOD).

Copyright  Jeffrey O. Johnson

Content, Design, and Layout on this site are Copyright © Jeffrey O. Johnson | All rights reserved