Fixed in 10.3.1

In the documentation of StarData, there is an example that shows how to get the altitude of Sirius at a given time (in the horizontal coordinate system).

However, when I try to run the example code

  "Altitude", {"Date" -> DateObject[{2014, 4, 9, 22, 0, 0}]}]]

the result is


Additionally, if I run

StarData["Sirius", EntityProperty["Star", #]] & /@ {"Altitude", 
   EntityProperty["Star", #, {"Date" -> Now}]] & /@ {"Altitude", 

I get the correct output for the first command and

{Missing["NotAvailable"], Missing["NotAvailable"]}

for the second, which is very strange. Is this a bug with the EntityProperty function?

  • 5
    $\begingroup$ It appears there was a server-side change that's causing this to fail when it shouldn't. I've notified the wolfram developers about this issue, and hopefully it will be fixed soon. $\endgroup$ Apr 3, 2015 at 16:34
  • 1
    $\begingroup$ The astronomical curated data functions seem to be working normally with the current versions. Can somebody else confirm this? $\endgroup$ May 31, 2016 at 9:49
  • $\begingroup$ @J.M. I can confirm it works in 10.4.0. Thanks for the heads up. $\endgroup$
    – shrx
    May 31, 2016 at 10:01
  • 2
    $\begingroup$ This works in 10.3.1, too. $\endgroup$
    – QuantumDot
    May 31, 2016 at 11:05

1 Answer 1


This bug appears to be fixed as early as of version 10.3.1.


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