50 Recent Changes in Astro4410 Web retrieved at 06:42 (GMT)

Some Notes on Radial Velocities Many possible projects in this laboratory involve measuring velocities from Doppler shifts of spectral lines. Such a shift is of course ...

The Hartung Boothroyd Observatory The Hartung Boothroyd Observatory is located off the Cornell campus, atop Mount Pleasant. It is used mainly as a teaching facility ...

Spectrophotometry ; Okay, you've observed a spectrum and a spectrophotometric standard, plus you've got a bias. bias readfits( ) object readfits( ) standard ...

Line Lists a small compendium of useful wavelengths All units in Aring;ngstroms. Bright Lines in Starburst Galaxy, NGC 7448 Skyglow has been (mostly) subtracted ...

Theoretical Isochrones for Star Clusters An isochrone (iso "same", chrone "time") is a distribution that reflects properties of an initial ensemble of objects after ...

Astronomy 4410 Instrumental Methods in Astronomy A hypothesis or theory is clear, desirable and positive, but it is believed by no one but the person who created ...

How to make an HR Diagram in IDL Libraries available in the IDL language provide a quite automated procedure for doing photometry on clusters of stars. Below ...

Basic Observational Knowledge Astronomy, like all fields, assumes a certain literacy in terms unique to the field. Because of the great age of this science, some ...

Course Calendar 27 Aug 2009 Org Meeting 14 Sep 2009 Lab 1 due 14 Sep 2009 Observing 15 Sep 2009 Observing 16 Sep 2009 Observing ...

Finding Guide Stars for Long Integrations When imaging with tne Andor camera on the HBO telescope, long exposures (greater than 60s) will either have to be broken ...

LAB 1: CCD Laboratory Evaluation The photographic plate was the detector of choice for astronomical imaging for nearly a century. However, none have been used on ...

Astro 4410 Computers Our lab contains several machines running GNU/Linux. On login you will see a graphical environment which should not look too unfamiliar, and ...

Course Handouts Organizational Material Optical Section Guidelines Lab Reports and Grading Scheme Optical Component: Lectures and Resources At the ...

IDL Tips and Resources IDL Cheat Sheet your first few commands in an IDL session Practical IDL Programming by Liam E. Gumley How to make an HR Diagram ...

CCD Acquisition Software The primary imaging device at the observatory is the Andor CCD. Software can be run in either the classroom laboratory or at the HartungBoothroydObservatory ...

Estimating Photon Counts For many observations, the dominant source of noise is simply that of arrival statistics for the finite number of photons which are recorded ...

HBO Instruments Telescope plate scale: 41 um/arcsecond Filters for direct imaging Standard 2x2 inch filters Band Wavelength FWHM ...

Andor CCD Operation The Andor iDus CCD camera is a commercial thermoelectrically cooled sealed unit which can deliver science quality imagery within 5 minutes of being ...

The Josephine L. Hopkins Teaching Radio Telescope History and Description The Josephine L. Hopkins Teaching Radio Telescope was dedicated in 2004 upgrading prior ...

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Fiber Fed Spectrograph Notes on the current design and some redesign concepts are accumulated here Telescope Parameters param value f ratio 13 ...

IDL Command Tips Printing Ordinarily, all output from graphical commands in IDL is sent to the default display device, which is the screen. This display device can ...

Astro 4410 Lab Reports and Grading Scheme A report will be assessed according to the following point scale: 10 Significant originality, no errors, an outstanding ...

LAB 2: The Hertzprung Russell Diagram The Hertzsprung Russell diagram is a plot of a star's absolute magnitude as a function of its temperature. At any instant a ...

Homework Assignments for Astro 4410

Course Syllabus for Astro 4410 Experimental Astronomy Fall 2008 Jim Houck, Don Barry, Jim Cordes, Jim Bell Space Sciences 221 emails: jrh13 ...

IDL Cheat Sheet Think of IDL as a desk calculator where variables refer to arrays and vectors in the same way they refer to scalars. Fire up an instance of IDL and ...

Observatory Preparation Before observing Decide on your science project! What data do you need? Determine filter bands for photometry and ...

Using symmetry to your advantage Expressions useful for row wise or column wise symmetry The INDGEN function is wonderfully useful for filling vectors and arrays ...

Optical Section Guidelines 1 You are expected to be in the Lab, 607 Space Sciences, for at least one lab session per week and an hour long lecture. 1 The Lab ...

Unix Cheat Sheet Increasingly, people are trained to use computers from Graphical User Interfaces instead of learning a command set. Command interfaces, though, ultimately ...

Gallery of HBO Observatory Some panoramas showing the scenic location and the facilities. Click on the image and drag to pan around. Use the plus and minus keys ...

HBO Current Circumstances See also ObservatoryPreparation for guidelines on planning before an observing run. Times // Local Time ...

The HBO Telescope Taking Dome FlatsLisa Grossman (Astro4410 student) with scope The primary mirror of the Hartung Boothroyd telescope is made of Pyrex from the Corning ...

Accumulated Class Notes Useful Articles An Introduction to CCDs from the SITe corporation (manufacturers of CCDs): DonBarry 01 Feb 2005

GNU/Linux Starter Tips Rich command line environment, or a GUI way. You can define your own path of mixing the two for your own personal productivity. The GUI will ...

Hourly Airmass Table Generator The table resulting from this interface is generated using software devised by Brian Casey, using Skycalc by John Thorstensen. Please ...

ATV Cheat Sheet When in atv many functions are available through the GUI interface. Others can be more conveniently accessed by pressing keystrokes while the cursor ...

Asteroid Observing Resources (contributed by Jim Bell) Several of you were asking about calculating airmass today, and at least one of you is interested in possibly ...

Gallery of HBO Images M57 The Ring Nebula Image credits: Kevin Moore, Matt Daniels, Lisa Grossman, Ned Damon, evening of 21 September 2006. Exposures were 60s ...