Links to Astronomical Web Tools
By the Author
Cosmo2: Compute Cosmological effects as a function of redshift
(by Chip Kobulnicky)
Obsplan: Compute observability parameters for astronomical sources as seen from various observatories
(by Chip Kobulnicky). See also Skycalc and StarAlt
IMF: Compute IMF parameters for a burst of star formation
(by Chip Kobulnicky)
GROT: Compute kinematic distances based on a Galactic roatation curve
(by Chip Kobulnicky, Dan Clemens, Roank Shah)
Redshift: Compute velocity of redshift based on input wavelengths
(uses full relativistic Doppler shift eqns).
(by Chip Kobulnicky)
NOT FUNCTIONAL YET:
A generic exposure time calculator for optical/IR observations
(by Chip Kobulnicky)
From the Astronomical Community
Look up
Extinction values and maps for common filter bandpasses
from David Schlegel
Find
Neutral Hydrogen Columns for lines
of sight
HST STIS Exposure time calculator at STSCI.
Flux Unit Conversion Tool at STSCI (NICMOS).
Absorption Law Calculator (by Doug Welch, McMaster U).
Julian Date Conversion (by Doug Welch, McMaster U).
Date conversion from Goddard Space Flight Center
An interesting extra-solar planet gizmo (by John Bray).
Coordinate Conversions from Goddard Space Flight Center
Viewing Availability for Satellite Observatories from Goddard Space Flight Center
X-ray Exposure Time Estimator from Goddard Space Flight Center
Other web-based tools