astronomy

astronomy

Is there code in Astropy or other library (any language) that can locate the centroid of a star in a .fits image to sub-pixel precision?

How can I get longitude of ascending node from satellite TLEs with Right Ascension of Ascending Node (RAAN)?

Query Gaia by star name

How to calculate the local zenith angle?

invalid value encountered in true_divide in rk45

Why do calculations provided by Skyfield not match actual data?

Find (ra,dec) from an (azimuth,elevation) in skyfield

Skyfield year is out of range

IRAF imalign will not shift images, incorrectly reports unequal number of input and output images, why?

Copying fits-file data and/or header into a new fits-file

idl making big numbers = 0.0

How to calculate refraction-corrected RA/DEC coordinates with pyephem?

Montage-wrapper: How to use montage to produce an all Sky map

idl radius of each pixel

ephem: how to get tilt angle of Earth?

Getting latitude and longitude of the Sun on a world map with PyEphem

How do I specify the Royal Observatory at Greenwich as a PyEphem observer?

Circular/Ideal Orbits using PyEphem

Geostationary orbit with pyephem?

Can I use healpy to stack sky?

Convert a coordinate of J2000 to current date?

pyephem, libnova, stellarium, JPL Horizons disagree on moon RA/DEC?

Hack a FITs Image Header

Solar system computer model

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