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IOError: cannot get http://maia.usno.navy.mil/ser7/deltat.data because
https://travis-ci.org/skyfielders/python-skyfield/jobs/421496309#L669
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skyfield.api.NamedStar(name), when it needs to download hip_main.dat.gz, ignores Loader.directory and instead always downloads to (and looks in) the current directory. This seems to be an oversight?
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While I'm on an issue submitting roll, a suggested enhancement....
For the telescope I work on we're attempting to make the switch to using Skyfield (which is awesome, thanks!) for our time/ephemeris…
jrs65 updated
6 years ago
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The [New Cross Index](http://cdsarc.u-strasbg.fr/viz-bin/Cat?IV/27A) (IV/27A) could be used to populate the Star name. The particular instance I wanted to use this was to look up both the Bayer design…
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Hi Brandon,
I would like to be obtain moon phase information similar to what PyEphem provides:
ephem.next_full_moon
ephem.Moon().phase
and similar please.
Thanks,
Bernard.
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As described in the documentation (http://rhodesmill.org/skyfield/files.html) and API (http://rhodesmill.org/skyfield/api-iokit.html), a customer Loader using a data directory, e.g., Loader(cache) sho…
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Sometimes the positional information that you have for a celestial object is anchored to an epoch other than J2000.0. This matters if the object has a non-zero proper motion or parallax.
As far as …
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Skyfield currently downloads data files to the current directory. It might be better to download those files to a per-user cache directory so that multiple applications using Skyfield can share data, …
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If the following code is run:
```
from skyfield.api import Topos, load
stations_url = '/home/matt/ephem_data_raw/ephem_20170510/cubesat.txt'
satellites = load.tle(stations_url, reload=True)
`…
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When I calculate an altitude using a float for the jd, and compare it to an altitude calculated when that same float is put into an array, I get a different result.
The difference is only in the la…