Image of the day

Captured by
RICHARD COFER

VdB 141 Ghost Nebula

My Account

New to Astromart?

Register an account...

Need Help?

M101 with blue dot (SN2011fe)

Started by hakescl, 02/05/2012 01:28AM
Posted 02/05/2012 01:28AM | Edited 02/05/2012 02:41AM Opening Post
Widefield view of M101. For these data, I was still de-bugging the star shape with the ED80T scope. (Turned out the ring that the focuser attaches to was not properly secured, and I do have a return label for when those scopes are in stock again.) The focus was a bit off for the RGB data. After fiddling (fumbling?) for a couple of weeks I have more respect for you manual focusers out there now. I have since received a Bahtinov mask and will have to report how focusing goes with that after I get a clear sky.

I thought I would go ahead and process this anyway and there is a mystery blue star in the galaxy. Turns out it was SN2011fe, but not listed as being "in" M101 or NGC 5457. (?) You may need to link to the high resolution image and zoom even further to see it.

http://www.fortlewis.edu/observatory/image_detail.asp?ID=257

clear skies,
Charlie

Fort Lewis Observatory: (37.238, -108.052) ~2360m (7744 ft.) elevation.
Darkness - typically 6.5+
Scope - Meade 16" LX200; f6.3 focal reducer
Focus - JMI Smart focus
Camera - SBIG ST-10XE; (~.5"/pixel)
Guiding - AO-8 and/or Meade 5"/DSI/PHD
http://www.fortlewis.edu/observatory
Posted 02/11/2012 06:06PM #1
Charlie,
Nice shot of the galaxy and the SN.

Jim Thommes

Mak-Newt 152 mm
C8
Megrez II APO
Zenithstar 66 mm APO
G11/Gemini
ST8300M
Artemis285 Camera
Canon 350D DSLR

http://jthommes.com/Astro/