Where is SDF
The Subaru Deep Field (SDF) is located near the North
being centered on
13h 24m 38s.9, +27d 29'
We selected this field, imposing the following three conditions:
(1) there is no bright star or bright galaxy or nearby known cluster of
galaxies within ~ 30' from the field center,
(2) the Galactic extinction is extremely low
(AV=0.052 at the center of the field; Schlegel et al. 1998),
(3) the field passes near the zenith at
Mauna-Kea and thus the observing efficiency is very high
(the maximum altitude of the SDF is 83d).
We have very deep J and
Maihara et al. 2001)
for a 2' x 2' area near the field center
Press Release Image).