Public Observatory "La Azotea" of the University of Guanajuato
Did you know? There are observing evenings to see with your own eyes
through our telescopes the Moon, the planets, the stars,
galactic nebulae and stellar clusters
-- every night, monday to friday from 7pm (in winter /
summer: about 8pm) to 10pm, free of charge! --
Just find your way up to the roof-top of the famous
university building in central Guanajuato. We are right on the roof terrace,
Every interested member of the public is welcome to attend!
If you arrive fairly early (i.e., before 8pm), you may
still be able to use the side entrance "M" on the Calzada de Guadalupe
(starting on the left side of the famous flight of steps and then turning
right, passing the university building underneath) and use the convenient
elevator there to get up. Press buttom 5
to get directly onto the roof terrace, and turn right to find our
observatory. If the side entrance is already closed, ask the security
officers by the main entrance for the right way. You need to find the elevator
or the staircase to the roof terrace, both starting from near the main
lecture hall, further up inside the building.
For group visits (i.e., more than 6 persons), please contact us at the
Departamento de Astronomia to
make an appointment:
call 01473 (0052473 from abroad) - 732 9607 or - 732 9548,
and ask for Luis Ramirez.
Click here to see our
pictures of the total lunar eclipse of February 20, 2008 !
Once on the roof of the famous University building of Guanajuato
(left), you will be rewarded with a splendid view (below)
of the city and the mountains around
- and, of course, by the moon (if up that night), the planets and plenty
We currently have 5 telescopes with apertures between 10cm and 36cm
(4" to 14") which are capable of giving good-quality images at
magnifications of 100-400 times.
The 14" SC-telescope is under a motorized dome (see above left),
the smaller telescopes are operated
right on the terrace, for easier access to young kids or elderly visitors.
To have an idea what you may see the evening of your observatory visit,
please scroll through the following photos and enjoy:
The "young" crescent moon is a delight to observe, here shown
4.5 days after New Moon.
The gibbous moon 9 days after New Moon: Many dark maria (lat. plural of
"mare"), large flat areas filled with solidified lava,
are now visible, as well as the southern (above, like in the astronomical
telescope) crater-covered, bright highlands.
A high magnification of the cratered highlands, with (among many others)
the prominent craters Clavius and Tycho.
Famous Mare Imbrium, once landing site of an Apollo mission.
Saturn, "Lord of the Rings" (above left), is certainly the most
popular of the planets. But you can also enjoy great views of,
depending on the season, Venus, Mars, and Jupiter. If you come several
evenings in succession, you may witness the four Galilean satellites
"chasing" each other around Jupiter (above right). Sometimes, one of them is
casting a shadow on Jupiter like a tiny black dot of ink.
The northern horn of the slender crescent, 3 days after New Moon.