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Technical card

Imaging telescope or lens: Hubble Space Telescope

Imaging camera: Advanced Camera for Surveys

Guiding telescope or lens: Hubble Space Telescope

Resolution: 2251x2323

Dates: Feb. 8, 2004Oct. 23, 2004

F435W: 6x1750"
F606W: 6x350"
F814W: 6x100"

Integration: 3.7 hours

Avg. Moon age: 12.98 days

Avg. Moon phase: 84.89%

Bortle Dark-Sky Scale: 1.00 job: 127899


For this image, I have used the following wavelengths: 435nm (B), 606nm (G) and 814nm (R) wide.
Due to the chip gap I used two sets of frames approximatively rotated of 45° each other.
For improving the signal, for each wavelength I have integrated 3 exposures.


Roberto Colombari
License: None (All rights reserved) Dec. 2, 2013


V838, Roberto Colombari